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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4422. Отображено 100.
16-02-2012 дата публикации

Method of producing photocatalyst layer

Номер: US20120040819A1
Автор: Norio Matsuda
Принадлежит: Pioneer Corp

A method of producing a photocatalyst layer can increase a photocatalyst effect without increasing light irradiation energy for activation. The method includes: an irradiation process of irradiating an ultraviolet ray on a titanium oxide layer formed on a substrate, an aqueous photocatalyst solution application process of applying an aqueous photocatalyst solution containing fine particles on the titanium oxide layer to form a photocatalyst layer, and a drying process of drying the photocatalyst layer, wherein the aqueous photocatalyst solution application process is a process of applying the aqueous photocatalyst solution on the titanium oxide layer in such a way that a thickness of the aqueous photocatalyst solution is ununiform.

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Номер записи: 1
19-04-2012 дата публикации

Method for preparation of dicarboxylic acids from saturated hydrocarbons or cycloaliphatic hydrocarbons by catalytic oxidation

Номер: US20120095258A1
Автор: Ahmad ALSHAMMARI, Andreas Martin, Angela KOECKRITZ, Narayana Venkata KALEVARU
Принадлежит: King Abdulaziz City for Science and Technology KACST

The present invention relates to a method for preparing dicarboxylic acids from saturated and cycloaliphatic hydrocarbons by oxidation at a reaction temperature comprised in the range of 25 to 300° C. in an autoclave using a solid heterogeneous catalyst. More particularly, the method of the invention relates to a method for preparing adipic acid (AA) from cyclohexane (CH) by selective oxidation.

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Номер записи: 2
17-05-2012 дата публикации

Alumina catalyst support

Номер: US20120122671A1
Автор: Andrew Polli, FRANCIS Francis, Naotaka Ohtake, Olivier Larcher, Thomas English
Принадлежит: Rhodia Operations SAS

The present invention is directed to a high surface area, high pore volume porous alumina, comprising: aluminum oxide, optionally, silicon oxide and aluminosilicates, and optionally one or more dopants, said alumina having a specific surface area of from about 100 to about 500 square meters per gram and a total pore volume after calcination at 900° C. for 2 hours of greater than or equal to 1.2 cubic centimeters per gram, wherein less than or equal to 15% of the total pore volume is contributed by pores having a diameter of less than 10 nm.

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Номер записи: 3
24-05-2012 дата публикации

Porous inorganic composite oxide

Номер: US20120129690A1
Автор: Andrew Polli, FRANCIS Francis, Olivier Larcher, Simon Ifrah, Thomas English
Принадлежит: Rhodia Operations SAS

A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m 2 /g, after calcining at 1100° C. for 5 hours, of ≧0.8235[Al]+11.157 and a total pore volume, in cm 3 /g, after calcining at 900° C. for 2 hours, of ≧0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw Al 2 O 3 per 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.

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Номер записи: 4
14-06-2012 дата публикации

Glass article provided with photocatalyst film

Номер: US20120148832A1
Автор: Fumiyoshi Kondo, Kazutaka Kamitani, Masaatsu Kido, Masahiro Hori, Mitsuhiro Kawazu, Takeshi Yabuta
Принадлежит: Nippon Sheet Glass Co Ltd

Provided is a glass article that improves the film strength of a photocatalyst film while maintaining the photocatalytic function and the reflection suppressing function of the photocatalyst film. The photocatalyst film on the glass sheet is formed to contain, in mass %, 50 to 82% of silicon oxide particles, 8 to 40% of titanium oxide particles, and 7 to 20% of a binder component composed of silicon oxide. The average particle diameter of the silicon oxide particles is set to at least 5 times the average particle diameter of the titanium oxide particles. The photocatalyst film is formed to have a structure such that some of the silicon oxide particles in the film serve as protruding silicon oxide particles that are not in contact with the glass sheet and that have their top portions protruding from the surrounding titanium oxide particles and being exposed on the surface of the film, while some of the titanium oxide particles are interposed between the glass sheet and the protruding silicon oxide particles.

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Номер записи: 5
25-04-2013 дата публикации

Nano Mixed Metal Oxide Thin Film Photocatalyst Consisting Of Titanium, Indium and Tin

Номер: US20130102953A1
Автор: Ramesh Paul J Tangaraj, Subrahmanyam Aryasomayajula
Принадлежит: HCL TECHNOLOGIES LTD.

The present invention relates to a novel photocatalyst comprising Nano mixed metal oxides of titanium, Indium and tin as a thin film with nano sized grains, method of its preparation and applications. The photocatalyst disclosed herein can be used in oxygenation of human/mammalian blood along with all other applications of photocatalysts. A photocatalytic oxygenator for the oxygenation derives oxygen from the water content of mammalian blood. The photocatalyst disclosed herein can also be used for effluent treatments along with all other applications associated with photocatalysts. 1. A photocatalyst comprising mixed metal oxides of titanium , Indium and tin as a thin film with nano sized grains.214-. (canceled)15. The photocatalyst as claimed in claim 1 , wherein the atomic percentage of constituents are about 3.58-4.80 Indium claim 1 , about 0.29-0.32 Tin claim 1 , and about 0.62-0.72 Titanium claim 1 , as measured by EDX measurements on the thin films claim 1 , along with oxygen.16. The photocatalyst as claimed in claim 1 , wherein the photocatalyst consists of tin doped indium oxide (ITO) and titanium dioxide (TiO)17. The photocatalyst as claimed in claim 1 , wherein the photo energy required is any single or a range of wavelengths in the spectrum of 255 nm-1100 nm.18. A method making a photocatalyst consisting of a Titanium claim 1 , Indium and Tin mixed metal oxide thin film with nano sized grains comprising depositing the metal oxides by DC magnetron sputtering on a substrate followed by annealing.19. The method as claimed in claim 18 , wherein the substrate is quartz claim 18 , synthetic silicon dioxide claim 18 , soda lime glass claim 18 , poly-carbonates claim 18 , poly imides or a polymer.20. The method as claimed in claim 19 , wherein the substrate is quartz or synthetic silicon dioxide.21. The method as claimed in claim 18 , wherein the depositing of the metal oxides is performed at a temperature in the range of 300K to 400 K.22. The method as claimed ...

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Номер записи: 6
09-05-2013 дата публикации

DOPED MATERIAL

Номер: US20130115308A1
Автор: "OKEEFFE Cormac", Gannon Paul
Принадлежит:

A doped material comprises TiOand three non-metal dopants. The first non-metal dopant comprises sulfur, the second non-metal dopant comprises fluorine, and the third non-metal dopant comprises carbon. The sulfur dopant comprises a cationic dopant, the carbon dopant comprises a cationic dopant, and the fluorine dopant comprises an anionic dopant. The molar ratio of the TiOto the sulfur is approximately 99.75:0.25. The molar ratio of the TiOto the fluorine is approximately 99.1:0.9. The molar ratio of the TiOto the carbon is approximately 98.7:1.3. The material has a transparent, lateral growth crystalline atomic structure. The crystallite particle size is approximately 1 nm. The material is soluble to facilitate dissolving of the material in a solvent without requiring any dispersants to form a true solution. 1146-. (canceled)147. A photocatalytic doped material having a crystalline atomic structure comprising{'sub': '2', 'TiO;'}and two or more dopants;at least one of the dopants being a non-metal,the material being soluble to facilitate dissolving of the material in a polar solvent to form a true solution without any dispersants.148. A material as claimed in wherein substantially all of the TiOis in rutile phase.149. A material as claimed in wherein substantially all of the TiOis in anatase phase.150. A material as claimed in wherein the non-metal dopant is selected from the group comprising sulfur claim 147 , carbon claim 147 , nitrogen claim 147 , phosphorus claim 147 , fluorine claim 147 , chlorine claim 147 , bromine claim 147 , iodine claim 147 , selenium claim 147 , and astatine.151. A material as claimed in wherein the non-metal dopant comprises an anionic or cationic dopant.152. A material as claimed in wherein the material comprises at least two non-metal dopants preferably the material comprises at least three non-metal dopants.153. A material as claimed in wherein the first non-metal dopant comprises sulfur claim 152 , the second non-metal dopant ...

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Номер записи: 7
16-05-2013 дата публикации

SOLAR-ACTIVATED PHOTOCHEMICAL PURIFICATION OF FLUIDS

Номер: US20130118995A1
Автор: Hawkins, II R. Thomas, Owen Mark D.
Принадлежит: UVCleaning Systems, Inc.

Disclosed herein are embodiments of a solar-activated photochemical fluid treatment system, some of which comprise a fluid vessel, a porous enclosure positioned inside of the fluid vessel, a porous enclosure positioned inside of the fluid vessel, a fiber substrate contained within the enclosure, and a semiconductor photocatalyst coupled to the fiber substrate. The fluid vessel can be configured to contain a fluid in contact with the photocatalyst such that the fluid treatment system, responsive to solar radiation applied to the photocatalyst and to the fluid in the vessel, induces photochemical modification of contaminants and living organisms in the fluid. Related methods are also disclosed. 1. A solar-activated photochemical fluid treatment system comprising:a fluid vessel having at least one opening and comprising an at least partially sunlight transmissive portion;at least one enclosure positioned inside of the fluid vessel, the enclosure comprising material that allows fluid and sunlight to pass into the enclosure;an at least partially sunlight-transmissive fiber substrate contained within the at least one enclosure; anda semiconductor photocatalyst coupled to the fiber substrate;wherein the fluid vessel is configured to contain a fluid such that, responsive to solar radiation passing through the at least partially sunlight transmissive portion of the fluid vessel and into the at least one enclosure and to the semiconductor photocatalyst, photochemical modification of contaminants and living organisms in the fluid occurs.2. The system of claim 1 , wherein the at least one enclosure comprises a porous bag that contains the fiber substrate and the photocatalyst and allows the fluid and solar radiation to pass into the porous bag.3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. The system of claim 1 , wherein the at least one enclosure is not ...

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Номер записи: 8
16-05-2013 дата публикации

Neutral, Stable and Transparent Photocatalytic Titanium Dioxide Sols

Номер: US20130122074A1
Автор: Kerrod Julie Elizabeth, Wagstaff Anthony Roy
Принадлежит:

A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form. 1. A method for preparing a neutral , stable and transparent photocatalytic titanium dioxide sol , comprising the steps of:(1) reacting a hydrous titanium dioxide gel with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol;(2) neutralizing the peptized alkaline titanium dioxide sol; and(3) obtaining the neutral, stable and transparent photocatalytic titanium dioxide sol.2. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by boiling.3. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by mixing hydrogen peroxide with the peptized alkaline titanium dioxide sol.4. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by mixing an acid compound with the peptized alkaline titanium dioxide sol.5. The method of claim 4 , wherein the acid compound is selected from the group consisting of a first acid compound claim 4 , a second acid compound and combinations thereof.6. The method of claim 5 , wherein the first acid compound is selected from the group consisting of a mineral acid claim 5 , an organic acid and combinations thereof.7. The method of claim 6 , wherein the mineral acid is phosphoric acid claim 6 , and wherein the ...

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Номер записи: 9
27-06-2013 дата публикации

HETEROPOLY ACID PROMOTED CATALYST FOR SCR OF NOx WITH AMMONIA

Номер: US20130164205A1
Автор: Anders Riisager, Rasmus Fehrmann, Sankar Reddy Putluru Siva
Принадлежит: Danmarks Tekniskie Universitet

The present invention concerns the selective removal of nitrogen oxides (NOx) from gases. In particular, the invention concerns a process, a highly alkali metal resistant heteropoly acid promoted catalyst and the use of said catalyst for removal of NOx from exhaust or flue gases, said gases comprising alkali or earth alkali metals. Such gases comprise for example flue gases arising from the burning of biomass, combined biomass and fossil fuel, and from waste incineration units. The process comprises the selective catalytic reduction (SCR) of NOx, such as nitrogen dioxide (NO 2 ) and nitrogen oxide (NO) with ammonia (NH 3 ) or a nitrogen containing compound selected from ammonium salts, urea or a urea derivative or a solution thereof as reductant.

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Номер записи: 10
04-07-2013 дата публикации

PHOTOCATALYST POWDER AND PRODUCTION METHOD THEREOF

Номер: US20130172175A1
Автор: KIM Jee Yong, PARK Rae Eun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed herein are photocatalyst powder and a production method thereof, and by having photocatalyst particles corn binded without reduction of a specific surface area, the reduction of the specific surface area is nearly none while the pores are developed, as well as the absorption rate with respect to light is superior, the method of producing photocatalyst powder includes forming initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion, and splitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined spliting solution. 1. A method of producing photocatalyst powder , comprising:forming an initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion; andsplitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined splitting solution.2. The method of claim 1 , further comprising:calcining the split photocatalyst powder at a predetermined temperature and at a predetermined pressure; andsintering the calcinated photocatalyst powder at a predetermined temperature and at a predetermined pressure.3. The method of claim 1 , wherein:the predetermined splitting solution is at least one selected from the group comprising amorphous solution, colloidal solution, distilled water and solution having visible ray inducing substance being at least one selected from the group comprising K, Mn and Na.4. The method of claim 1 , wherein:the predetermined splitting solution comprises amorphous solution having same substance as the ...

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Номер записи: 11
18-07-2013 дата публикации

PHOTOCATALYST WITH ENHANCED STABILITY FOR HYDROGEN PRODUCTION AND OXIDATIVE REACTIONS

Номер: US20130180861A1
Автор: Lucatero Savidra, Podlaha-Murphy Elizabeth J.
Принадлежит: NORTHEASTERN UNIVERSITY

A Ti0-based photocatalyst is fabricated as a composite of titania with adhered nanostructures which contain a non-noble metal in galvanic contact with a noble metal. The catalyst effectively overcome aging and/or deactivation effects observed in a system free of the non-noble metal. The composite material showed a corrosion protective effect on the photoactivity of fresh catalyst for over 180-240 days, and it enhanced the rate of the water reduction reaction relative to bare Ti0. Variations in porosity and non-noble metal content of the alloy portion of the nanostructures influenced the performance of the catalyst composite. The protective effect of the non-noble metal is through a cathodic corrosion protection mechanism. 1. A photocatalyst comprising a TiOmaterial in surface contact with a plurality of nanostructures , the nanostructures comprising a noble metal in galvanic contact with a non-noble metal , wherein the noble metal is in galvanic contact with said TiOmaterial and acts as an electron trap during a photocatalytic redox reaction , and wherein the non-noble metal maintains the noble metal in a reduced state.2. The photocatalyst of claim 1 , wherein the noble metal is selected from the group consisting of Au claim 1 , Ag claim 1 , Pt claim 1 , and mixtures thereof.3. The photocatalyst of claim 1 , wherein the non-noble metal is selected from the group consisting of Fe claim 1 , Co claim 1 , and mixtures thereof.4. The photocatalyst of claim 1 , wherein the noble metal is Au and the non-noble metal is Fe.5. The photocatalyst of claim 1 , wherein the nanostructures are in the form of nanowires claim 1 , nanoparticles claim 1 , nanoclusters claim 1 , or nanocrystals.6. The photocatalyst of claim 1 , wherein the TiOmaterial comprises TiOin the crystalline anatase or rutile form.7. The photocatalyst of claim 1 , wherein the TiOmaterial comprises TiOparticles deposited onto a substrate claim 1 , the substrate comprising indium tin oxide or stainless steel.8. ...

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Номер записи: 12
22-08-2013 дата публикации

CATALYTIC PURIFICATION OF GASES

Номер: US20130212944A1
Автор: Bradshaw Heather, Krause Outi, Ronkkonen Ella, Simell Pekka, Solla Anu, Stephenson Hazel
Принадлежит:

A zirconium-based mixed oxide or zirconium-based mixed hydroxide which is capable of (a) at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds, and/or (b) providing an initial heat of adsorption of ammonia of greater than 150 kJ/mol when measured by ammonia flowing gas microcalorimetry. Also, a method for purifying gas produced from the gasification of carbonaceous materials, comprising the step of bringing the gas into contact with such mixed oxides or mixed hydroxides. 1. A zirconium-based mixed oxide or zirconium-based mixed hydroxide which is capable of (a) at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds , and/or (b) providing an initial heat of adsorption of ammonia of greater than 150 kJ/mol when measured by ammonia flowing gas microcalorimetry.2. A mixed oxide or mixed hydroxide as claimed in which claim 1 , after hydrothermal treatment in 70% v/v steam in nitrogen at 700° C. for 85 hours claim 1 , is capable of at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds.3. A mixed oxide or mixed hydroxide as claimed in having a total pore volume as measured by nitrogen porosimetry of at least 0.25 cm/g but less than 1.0 cm/g after calcination at 800° C. for 2 hours.4. A mixed oxide or mixed hydroxide as claimed in having a total pore volume as measured by nitrogen porosimetry of greater than 0.15 cm/g but less than 1.0 cm/g after calcination at 1000° C. for 2 hours.5. A mixed oxide or mixed hydroxide as claimed in claim 1 , additionally comprising cerium and/or lanthanum.6. A mixed oxide or mixed hydroxide as claimed in comprising:(a) at least 60 wt % zirconia and/or zirconium hydroxide,(b) 10-25 wt % ceria and/or cerium hydroxide, and(c) 1-10 wt % lanthana and/or ...

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Номер записи: 13
29-08-2013 дата публикации

Photocatalyst coated body and photocatalyst coating liquid

Номер: US20130224096A1
Автор: Hiroyuki Fujii, Junji Kameshima, Koji Omoshiki, Satoru Kitazaki, Susumu Adachi
Принадлежит: TOTO LTD

A photocatalyst coated body includes a base and a photocatalyst layer provided on the base. The photocatalyst coated body is characterized in that photocatalyst layer contains 1-20 (inclusive) parts by mass of photocatalyst particles, 30-98 (inclusive) parts by mass of silica particles and 1-50 (inclusive) parts by mass of zirconia particles, so that the total all of these particles is 100 parts by mass. The photocatalyst coated body is also characterized in that the zirconia particles are at least one kind of particles selected from the group consisting of crystalline zirconia particles having an average crystallite diameter of 10 nm or less and amorphous zirconia particles. Such photocatalyst coated body has excellent photocatalytic degradation function and excellent weather resistance; and also it is capable of suppressing the formation of intermediate products such as NO 2 , while increasing the amount of NO x removed during removal of NO x in the air.

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Номер записи: 14
26-09-2013 дата публикации

SULFUR-RESISTANT CATALYST SUPPORT MATERIAL

Номер: US20130252807A1
Автор: Germond William, Lachapelle Jeffery, Leonard Evan, Sketch Christopher, Wu Wei, Yunkui Li
Принадлежит: Pacific Industrial Development Corporation

A catalyst support material and a catalyst system incorporating said support material along with a method of making the same is provided for use in applications in which the support material is exposed to sulfur-containing impurities. The catalyst support material generally comprises an inorganic oxide base material having a surface and pores of predetermined size; and a zirconium layer adapted to interact with the surface and sized to be received by the pores of the base material. The catalyst support material being prepared by applying a layer of a zirconium compound to the surface and pores of an inorganic oxide base material followed by calcination in order to convert the zirconium compound to a metal, a metal oxide, or a mixture thereof. 1. A catalyst support material for use in applications in which the support material is exposed to sulfur-containing impurities , the catalyst support material comprising:an inorganic oxide base material having a surface and pores of predetermined size; anda zirconium layer adapted to interact with the surface and sized to be received by the pores of the base material.2. The catalyst support material of claim 1 , wherein the zirconium layer is zirconium metal claim 1 , zirconium oxide claim 1 , or a mixture thereof.3. The catalyst support material of claim 1 , wherein the surface of the base material has a size given as a BET surface area in the range of about 20 to 400 m/g.4. The catalyst support material of claim 1 , wherein the inorganic oxide base material is one selected from the group of aluminum oxides claim 1 , silicon oxides claim 1 , titanium oxides claim 1 , and aluminum silicates.5. The catalyst support material of claim 1 , wherein the zirconium layer is present in the catalyst support material in an amount ranging between about 1% and 30% by weight.6. The catalyst support material of claim 1 , wherein the catalyst support material has the shape of a powder claim 1 , beads claim 1 , or pellets.7. The catalyst ...

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Номер записи: 15
21-11-2013 дата публикации

REGENERATING A TITANIUM SILICALITE CATALYST

Номер: US20130309152A1
Автор: Carlberg Philip J., Crampton Hannah L., Meza Cesar E.
Принадлежит: Dow Global Technologies LLC

Embodiments of the present disclosure include a process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent. 1. A process for regenerating a titanium silicalite catalyst fouled during a reaction between an olefin and a peroxide compound to produce an oxirane , the process comprising contacting the fouled titanium silicalite catalyst with a regeneration solution including at least one oxidizing agent to provide a regenerated titanium silicalite catalyst , wherein the regeneration solution has an oxidizing agent concentration of less than 0.50 weight percent based on a total weight of the regeneration solution prior to contact with the fouled titanium silicalite catalyst , exclusive of the titanium silicalite catalyst.2. The process of claim 1 , wherein the regeneration solution has a pH of less than 2.3. The process of claim 2 , further including adjusting the pH of the regeneration solution to less than 2 prior to contacting the fouled titanium silicalite catalyst with the regeneration solution.4. The process of claim 1 , further including washing the regenerated titanium silicalite catalyst with an organic compound.5. The process of claim 1 , wherein the regeneration solution has an oxidizing agent concentration in a range of from 0.10 weight percent to 0.49 weight percent claim 1 , based on the total weight of the regeneration solution claim 1 , exclusive of the titanium silicalite catalyst.6. A process for regenerating a titanium silicalite catalyst fouled during a reaction between an olefin and a peroxide compound to produce an oxirane claim 1 , the process comprising the step of contacting the fouled titanium silicalite catalyst with a regeneration solution comprising at least one oxidizing agent and further comprising an organic compound to provide the regenerated titanium silicalite catalyst claim 1 , with the proviso that the process does ...

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Номер записи: 16
26-12-2013 дата публикации

METHOD AND SYSTEM FOR FORMING PLUG AND PLAY METAL COMPOUND CATALYSTS

Номер: US20130345047A1
Автор: Biberger Maximilian A., JR. Stephen Edward, Kevwitch Robert Matthew, Kingsley Jesudos J., Lehman, Yin Qinghua
Принадлежит: SDCmaterials, Inc.

A metal compound catalyst is formed by vaporizing a quantity of catalyst material and a quantity of carrier thereby forming a vapor cloud, exposing the vapor cloud to a co-reactant and quenching the vapor cloud. The nanoparticles are impregnated onto supports. The supports are able to be used in existing heterogeneous catalysis systems. A system for forming metal compound catalysts comprises means for vaporizing a quantity of catalyst material and a quantity of carrier, quenching the resulting vapor cloud, forming precipitate nanoparticles comprising a portion of catalyst material and a portion of carrier, and subjecting the nanoparticles to a co-reactant. The system further comprises means for impregnating the of supports with the nanoparticles. 129-. (canceled)30. A metal compound catalyst prepared by a method comprising: i. loading a quantity of catalyst material in powder form and a quantity of carrier comprising an oxide into a plasma gun in a desired ratio;', 'ii. vaporizing the quantity of catalyst material and the quantity of carrier by the plasma gun, thereby forming a vapor cloud;', 'iii. quenching the vapor cloud received from the plasma gun, thereby forming precipitate nanoparticles; and', 'iv. injecting a co-reactant into a substantially low oxygen environment such that the co-reactant will react with one of the vapor cloud, the precipitate nanoparticles, and any combination thereof,, 'a. providing a quantity of nanoparticles, comprising the stepswherein at least some of the nanoparticles comprise a first portion comprising a catalyst material bonded to a second portion comprising a carrier, wherein the carrier comprises an oxide;b. providing a quantity of supports comprising a same oxide as in the carrier loaded in the plasma gun;c. combining the supports with the nanoparticles; andd. forming a structure having the catalyst material bonded with the carrier, wherein the carrier is bonded with the support through an oxide-oxide bond.31. The metal ...

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Номер записи: 17
02-01-2014 дата публикации

Nanonet-Based Hematite Hetero-Nanostructures for Solar Energy Conversions and Methods of Fabricating Same

Номер: US20140000697A1
Автор: Lin Yongjing, Wang Dunwei, Zhou Sa
Принадлежит: The Trustees of Boston College

Nanonet-based hematite hetero-nanostructures () for solar energy conversions and methods of fabricating same are disclosed. In an embodiment, a hetero-nanostructure () includes a plurality of connected and spaced-apart nanobeams () linked together at an about 90° angle, the plurality of nanobeams () including a conductive silicide core having an n-type photo-active hematite shell. In an embodiment, a device () for splitting water to generate hydrogen and oxygen includes a first compartment () having a two-dimensional hetero-nanostructure (), the hetero-nanostructure having a plurality of connected and spaced-apart nanobeams, each nanobeam substantially perpendicular to another nanobeam, the plurality of nanobeams including an n-type photoactive hematite shell having a conductive core; and a second compartment () having a p-type material (), wherein the first compartment () and the second compartment () are separated by a semi-permeable membrane. 1. A hetero-nanostructure comprising a plurality of connected and spaced-apart nanobeams linked together at an about 90° angle , the plurality of nanobeams including a conductive silicide core having an n-type photoactive hematite shell.2. The hetero-nanostructure of wherein the conductive silicide core is a titanium silicide core.3. The hetero-nanostructure of wherein the n-type photoactive hematite shell includes a dopant to absorb visible light.4. The hetero-nanostructure of wherein the plurality of nanobeams are two-dimensional.5. The hetero-nanostructure of wherein the hetero-nanostructure is used as a photoelectrochemical cell.6. The hetero-nanostructure of wherein the hetero-nanostructure is used as a solar cell.7. The hetero-nanostructure of for use in producing hydrogen.8. The hetero-nanostructure of wherein a thickness of the n-type photoactive hematite shell ranges from about 7 nm to about 40 nm.9. The hetero-nanostructure of wherein a thickness of the n-type photoactive hematite shell ranges from about 25 nm to ...

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Номер записи: 18
02-01-2014 дата публикации

TITANIA CARRIER FOR SUPPORTING CATALYST, MANGANESE OXIDE-TITANIA CATALYST COMPRISING THE SAME, APPARATUS AND METHOD FOR MANUFACTURING THE TITANIA CARRIER AND MANGANESE OXIDE-TITANIA CATALYST, AND METHOD FOR REMOVING NITROGEN OXIDES

Номер: US20140004027A1
Автор: Cha Woo Joon, Chin Sung Min, Jurng Jong Soo, Park Eun Seuk
Принадлежит:

Provided are a titania carrier for supporting a catalyst for removing nitrogen oxides, a manganese oxide-titania catalyst comprising the same, an apparatus and a method for preparing the same, and a method for removing nitrogen oxides. More particularly, provided are a titania carrier having a specific surface area of 100 m/g-150 m/g, an average pore volume of 0.1 cm/g-0.2 cm/g, and an average particle size of 5 nm-20 nm, and an apparatus and method for preparing the same. Provided also are a manganese oxide-titania catalyst comprising the titania carrier and manganese oxide supported thereon, a method for preparing the same, and a method for removing nitrogen oxides using the catalyst. The catalyst has high activity and dispersibility, and thus provides excellent denitrogenation efficiency even in a low temperature range of about 200° C. 1. An apparatus for preparing a titania carrier , comprising:a titania precursor supplying unit in which a titania precursor is allowed to vaporize and supplied to a reaction unit;an oxygen supplying line through which an oxygen source is supplied to a reaction unit;a reaction unit in which the titania precursor supplied from the titania precursor supplying unit is reacted to produce titania particles; anda recovering unit in which the titania particles produced at the reaction unit are cooled and collected,wherein the recovering unit comprises a cooling system for cooling the titania particles introduced from the reaction unit, and a collecting system for collecting the titania particles cooled at the cooling system, and the cooling system has a turbulence-forming section in a flow path through which the titania particles are passed.2. The apparatus for preparing a titania carrier according to claim 1 , wherein the cooling system comprises an external tube claim 1 , an internal tube formed inside the external tube claim 1 , and a coolant flow path through which a coolant flows formed between the internal tube and the external tube ...

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Номер записи: 19
16-01-2014 дата публикации

SANITARY WARE

Номер: US20140017425A1
Автор: Amemori Hiroaki, Hino Takahiro, Ichiki Tomoyasu, Takano Satoshi, TOKUDOME Hiromasa, Yagi Shinichi
Принадлежит: TOTO LTD.

Disclosed is a sanitary ware including a photocatalyst layer that has a high level of water resistance and abrasion resistance while maintaining a good photocatalytic activity. The sanitary ware includes a glaze layer and a photocatalyst layer provided on the glaze layer. The photocatalyst layer is an oxide film that is a co-fired product of a precursor of titanium oxide and a precursor of zirconium oxide and contains 65 to 90% by mass of titanium oxide and 10 to 35% by mass of zirconium oxide. 1. A sanitary ware comprising a glaze layer and a photocatalyst layer provided on the glaze layer , whereinthe photocatalyst layer is an oxide film comprising a co-fired product of a precursor of titanium oxide and a precursor of zirconium oxide and contains 65 to 90% by mass of titanium oxide and 10 to 35% by mass of zirconium oxide.2. The sanitary ware according to claim 1 , wherein the content of titanium oxide is 65 to 85% by mass and the content of zirconium oxide is 15 to 35% by mass in the photocatalyst layer.3. The sanitary ware according to claim 1 , wherein photocatalyst layer has methylene blue decomposition index of 5 or more.4. The sanitary ware according to claim 1 , wherein photocatalyst layer has a thickness of 50 to 200 nm.5. The sanitary ware according to claim 1 , wherein the firing has been carried out at 700 to 800° C.6. The sanitary ware according to claim 1 , wherein the precursor of titanium oxide is a titanium alkoxide or a titanium chelate.7. The sanitary ware according to claim 1 , wherein the titanium alkoxide is represented by general formula Ti(OR)wherein OR represents a Calkoxy group claim 1 , acetyl acetonate claim 1 , or ethyl acetoacetate.8. The sanitary ware according to claim 7 , wherein the titanium alkoxide is one of or a mixture of two or more of substances selected from the group consisting of tetraethoxytitanium claim 7 , tetraisopropoxytitanium claim 7 , tetra-n-propoxytitanium claim 7 , tetrabutoxytitanium claim 7 , ...

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Номер записи: 20
23-01-2014 дата публикации

METHOD FOR PREDICTING THE EFFICIENCY OF A TiO2 PHOTOCATALYST

Номер: US20140024121A1
Автор: Bourdelande Jose Luis, Hernando Jordi, Osso J. Oriol, Roscini Claudio, Vega Lourdes F.
Принадлежит:

The present invention relates to a method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction. 1. Method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction comprising the steps of:{'sub': '2', 'a) preparing a suspension of a TiOphotocatalyst with a suitable solvent;'}b) adding the reagent of the reaction;c) exciting said photocatalyst with a light source;{'sub': '2', 'd) measuring absorbance spectrum of the photoinduced TiOspecies;'}e) analyzing the intensity and profile of the time decay of the transient absorption signals measured upon irradiation of different photocatalysts in order to determine their relative efficiencies.2. Method according to claim 1 , wherein the TiOphotocatalyst is doped with a metal.3. Method according to claim 2 , wherein said metal is selected from Ru claim 2 , Pt claim 2 , Ni claim 2 , Cu claim 2 , Fe or a mixture thereof.4. Method according to claim 1 , wherein said light source is a pulsed laser beam.5. Method according to claim 4 , wherein said pulsed laser beam has a minimum energy of 2 mJ/pulse.6. Method according to claim 1 , wherein the solvent is selected from water claim 1 , an organic solvent or a mixture thereof.7. Method according to claim 6 , wherein said solvent is acetonitrile.8. Method according to claim 1 , wherein the suspension in step a) is in a concentration of at least 0.01 mg/mL.9. Method according to claim 1 , wherein said reagent in step b) is COin a reaction for reducing CO.10. Method according to claim 1 , wherein said light-induced reaction is the photoinduced water splitting or the photodegradation of pollutants. The present invention relates to the field of photocatalysts and in particular relates to a method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction. More in particular, said light-induced reaction is the photoreduction of CO.The combustion of fossil fuels, as the main source of energy production, releases large ...

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Номер записи: 21
06-02-2014 дата публикации

Nanostructured titania semiconductor material and its production process

Номер: US20140037929A1
Автор: CAMPOSECO SOLIS Roberto, CASTILLO CERVANTES Salvador, MEJIA CENTENO Isidro, MONTOYA DE LA FUENTE J. Ascension, MORAN PINEDA Florencia Marina, NAVARRETE BOLANOS Juan, VARGAS ESCUDERO Alfredo
Принадлежит:

A nanostructured titania semiconductor material termed TSG-IMP having a predetermined crystal size is produced by a sol-gel method by adding a titanium alkoxide to an alcoholic solution, adding an acid to the alcoholic solution, subjecting the acidic solution to agitation under reflux conditions: stabilizing the medium and adding bidistilled water under reflux until gelation; subjecting the gel to aging until complete formation of the titania which is dried and calcined. 7. A process to make the nanostructured titania semiconductor material TSG-IMP of claim 1 , comprising the following steps:I). Preparation of an alcoholic solution: consists of adding, to a reflux system with constant agitation, a titanium alkoxide to an alcoholic solution;II). Solution in acid medium: consists of adding an acid to the alcoholic solution of step I) controlling the pH from 1 to 5.III). Hydrolysis: consists of subjecting the solution in acid medium obtained in step II) to stirring and reflux conditions at a temperature of 70 to 80° C., stabilize the medium and proceed to add bidistilled water, in a water/alkoxide molar ratio of 1-2/0.100-0.150, continuing reflux until gel formation;IV). Aging: consists of subjecting the gel obtained in step III) to an aging treatment under the same agitation and reflux of step III), for 1 to 24 hours, for the total titania formation;V). Drying: consists of drying nanostructured titania obtained in step IV), at a temperature of 50 to 80° C., for a 1 to 24 hour period; andVI). Activation or calcination: consists of subject the dry titania obtained in step V), to a calcination step at a temperature of 200 to 600° C., for a 1 to 12 hours.8. The process of claim 7 , wherein the titanium alkoxide used in step I) claim 7 , preferably is three or four branched or linear carbons.9. The process of claim 7 , wherein the alcoholic solution used in step I) claim 7 , preferable comes from three or four linear or branched carbon alcohols.10. The process of claim 7 , ...

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Номер записи: 22
13-03-2014 дата публикации

POLYCONDENSATION CATALYST FOR PRODUCING POLYESTER AND PRODUCTION OF POLYESTER USING THE POLYCONDENSATION CATALYST

Номер: US20140073758A1
Автор: IKEGAWA Keiichi, KAMON Akihiro, NAITO Jun, Tabata Keiichi
Принадлежит: SAKAI CHEMICAL INDUSTRY CO., LTD.

The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on the surfaces an inner coating layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiOper 100 parts by weight of the solid base, and an outer coating layer either of an oxide of at least one element selected from aluminum, zirconium and silicon, or of a composite oxide of at least two elements selected from aluminum, zirconium and silicon on the surface of the inner coating layer in an amount of from 1 to 50 parts by weight per 100 parts by weight of the solid base. 1. A polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol , wherein the polycondensation catalyst comprises particles of a solid base having on the surfaces an inner coating layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiOper 100 parts by weight of the solid base , and an outer coating layer either of an oxide of at least one element selected from aluminum , zirconium and silicon , or of a composite oxide of at least two elements selected from aluminum , zirconium and silicon on the surface of the inner coating layer in an amount of from 1 to 50 parts by weight per 100 parts by weight of the solid base.2. The polycondensation catalyst according to claim 1 , wherein the solid base is magnesium hydroxide.3. The polycondensation catalyst according to claim 1 , wherein the solid base is hydrotalcite.4. A method for producing a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and ...

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Номер записи: 23
27-03-2014 дата публикации

PHOTOCATALYST MEMBER

Номер: US20140087179A1
Автор: HIGASHI Mitoki, Hino Takahiro, Ichiki Tomoyasu, Takano Satoshi, Yagi Shinichi
Принадлежит: TOTO LTD.

Disclosed is a photocatalyst member including a glaze layer and a photoctalyst layer provided on the glaze layer, the photocatalyst layer is good in layer strength, water resistance, or abrasion resistance. More specifically, the photocatalyst member includes a base having a glaze layer and a photocatalyst layer that is provided on the glaze layer and contains titanium oxide and zirconium titanate, wherein the content of zirconium titanate in the photocatalyst layer is 15 to 75% by mass based on the total content of titanium oxide and zirconium titanate, and the content of zirconium titanate in an area from around an interface between the photocatalyst layer and the base to an median line in the thickness of the photocatalyst layer is larger than the content of zirconium titanate in an area near the external surface of the photocatalyst layer. 1. A photocatalyst member comprising a base , a glaze layer provided on the base , and a photocatalyst layer which is provided on the glaze layer and contains titanium oxide and zirconium titanate , whereinthe content of zirconium titanate in the photocatalyst layer is 15 to 75% by mass based on the total content of titanium oxide and zirconium titanate; andthe content of zirconium titanate in an area from around an interface between the photocatalyst layer and the base to an median line in the thickness of the photocatalyst layer is larger than the content of zirconium titanate in an area near the external surface of the photocatalyst layer.2. The photocatalyst member according to claim 1 , wherein zirconium titanate is not observed on the external surface of the photocatalyst layer.3. The photocatalyst member according to claim 1 , wherein the content of zirconium titanate in the photocatalyst layer is 35 to 65% by mass.4. The photocatalyst member according to claim 1 , wherein the thickness of the photocatalyst layer is 50 nm to 200 nm.5. The photocatalyst member according to claims 1 , which is a sanitary ware.6. A process ...

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Номер записи: 24
27-03-2014 дата публикации

Catalytic Article for Decomposing Volatile Organic Compound and Method for Preparing the Same

Номер: US20140087937A1
Автор: Bo-Tau Liu, Cheng-Hsien Hsieh, De-Hua Wang
Принадлежит: National Yunlin University of Science and Technology

A catalytic article for decomposition of a volatile organic compound includes a porous support body, a plurality of active centers formed on the support body and adapted for catalytic decomposition of the volatile organic compound, and a plurality of capture centers bound to the support body. Each of the active centers is composed of one of a noble metal, a transition metal oxide, and the combination thereof. Each of the capture centers includes at least one functional group that is adapted for attracting or binding the volatile organic compound. A method for preparing the catalytic article is also disclosed.

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Номер записи: 25
03-01-2019 дата публикации

AIR PURIFICATION DEVICE

Номер: US20190001015A1
Автор: ENDRES Gerhard, FIEDLER Jochen
Принадлежит:

An air purification unit has a housing which has at least one inlet opening for delivering an air stream and at least one outlet opening for discharging the air stream delivered via the inlet opening. At least one air purification unit and at least one lighting unit are arranged in the housing, wherein the at least one air purification unit and the at least one lighting unit are arranged opposite one another in the housing. The at least one air purification unit has at least one photocatalytically active surface region. The air stream is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purification unit, wherein the surface region is at least partially coated with titanium dioxide or doped with titanium dioxide ions ions. 115-. (canceled)16: Air purification device , comprising a housing having at least one inlet opening for supply of an air flow and at least one outlet opening for discharge of the air flow supplied by way of the inlet opening , wherein at least one air purifying unit and at least one lighting unit are arranged in the housing , wherein the at least one air purifying unit and the at least one lighting unit are arranged opposite one another in the housing , the at least one air purifying unit has at least one photocatalytically active surface region and the air flow is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purifying unit , wherein the at least one photocatalytically active surface region of the at least one air purifying unit can be irradiated with light by the at least one lighting unit and the at least one photocatalytically active surface region is coated at least partly with titanium dioxide or doped with titanium dioxide ions , wherein the at least one air purifying unit comprises two air purifying units arranged opposite one another at the inner walls of the housing , wherein ...

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Номер записи: 26
07-01-2016 дата публикации

TITANIUM OXIDE DISPERSION LIQUID, TITANIUM OXIDE COATING LIQUID, AND PHOTOCATALYST COATING FILM

Номер: US20160001266A1
Автор: FUKUI Naoyuki, KOJIMA Ryouta, WATANABE Hitoshi
Принадлежит: Daicel Corporation

Provided is a titanium oxide dispersion liquid that has dispersibility and dispersion stability both at superior levels and, when applied and dried, can form a photocatalyst coating film capable of rapidly developing excellent photocatalytic activity. The titanium oxide dispersion liquid according to the present invention includes titanium oxide particles (A), a dispersing agent (B), and a solvent (C). The titanium oxide particles (A) support a transition metal compound. The dispersing agent (B) includes a poly(acrylic acid) or a salt thereof. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably includes a poly(acrylic acid) alkali metal salt. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably has a weight-average molecular weight of from 1000 to 100000. 1. A titanium oxide dispersion liquid comprising:titanium oxide particles (A) supporting a transition metal compound;a dispersing agent (B) comprising a poly(acrylic acid) or a salt of the poly(acrylic acid); anda solvent (C).2. The titanium oxide dispersion liquid according to claim 1 ,wherein the dispersing agent (B) comprises a poly(acrylic acid) alkali metal salt as the poly(acrylic acid) or a salt thereof.3. The titanium oxide dispersion liquid according to one of and claim 1 ,wherein the poly(acrylic acid) or a salt thereof in the dispersing agent (B) has a weight-average molecular weight of from 1000 to 100000.4. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide particles (A) supporting a transition metal compound comprise titanium oxide particles supporting an iron compound.5. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide particles (A) supporting a transition metal compound comprise titanium oxide particles supporting the transition metal compound on a plane acting as an oxidation site.6. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide ...

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Номер записи: 27
02-01-2020 дата публикации

Composition for Mineralizing Carbon Dioxide and Nitrogen Oxide Gases and Uses of Same

Номер: US20200001273A1
Автор: Llobregat Agustí Juan Carlos, Sivera Marzá José Antonio
Принадлежит:

The invention relates to a composition for mineralising carbon dioxide and nitrogen oxide gases, which comprises a mixture of magnesium (between 1 and 25%), iron (between 1 and 23%), calcium monoxide (between 1 and 25%), titanium dioxide (between 0.1 and 11%) and silicon dioxide (between 16 and 75%), with a particle diameter between 100 nm and 4000 μm. The composition causes the mineralisation of carbon dioxide (CO) and of the gaseous chemical compounds known as “nitrogen oxides” (NO) in the atmosphere. This composition can be added or mixed as an additive in paints, dyes, resins and elastic polymers (gum and natural rubber) in parts with wear, and for any type of covering. 1. A composition for mineralising gases of carbon dioxide and nitrogen oxides comprising a mixture of igneous rocks which comprises magnesium (between 1 and 25%) , iron (between 1 and 23%) , calcium monoxide (between 1 and 25%) , titanium dioxide (between 0.1 and 11%) and silicon dioxide (between 16 and 75%) , with a particle diameter between 100 nm and 4000 μm.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. The composition according to claim 1 , comprising between 0.1 and 2% of titanium dioxide.7. A coating comprising the composition defined in .8. A coating comprising the composition defined in .9. A paint claim 1 , lacquer claim 1 , dye claim 1 , resin claim 1 , natural rubber claim 1 , gum and/or varnish claim 1 , comprising the composition defined in .10. A paint claim 6 , lacquer claim 6 , dye claim 6 , resin claim 6 , natural rubber claim 6 , gum and/or varnish claim 6 , comprising the composition defined in .11. The natural rubber and/or gum according to claim 9 , wherein it is an element subject to wear.12. The natural rubber and/or gum according to claim 11 , wherein said element subject to wear is a tire.13. The paint claim 9 , lacquer claim 9 , dye claim 9 , resin claim 9 , natural rubber claim 9 , gum and/or varnish according to claim 9 , wherein it comprises a percentage by ...

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Номер записи: 28
05-01-2017 дата публикации

Visible-Light-Activated Multilayered Photocatalyst And The Method Of Its Preparation

Номер: US20170001183A1
Автор: Buchalska Marta, Labuz Przemyslaw, Macyk Wojciech, Trochowski Mateusz
Принадлежит:

Visible-light-active and photostable, multilayered materials and their preparation method based on surface-modified titanium(IV) oxide have been invented. 1. Preparation method of a visible-light-activated multilayered photocatalyst characterized in that:a) modifies the surface of titanium(IV) oxide in the form of powder or coating by impregnation with a modifier solution, where the modifier is an aromatic organic compound with at least two —OH or —COOH groups or a hexachloroplatinate(IV) ion,b) the protective layer of titanium(IV) oxide is applied on the modified material, where the known ALD or “spin-coating” techniques are used.2. Method according to claim 1 , characterized in that it uses crystalline titanium(IV) oxide with a structure of anatase or being a mixture of anatase and rutile structure.3. Method according to claim 1 , characterized in that stage a) is carried out in water or alcohol solution of the modifier of the 10mol/dmminimal concentration and the product of the modification is dried.5. Method according to claim 1 , characterized in that the organic is a compound selected from the group consisting of phthalic acid claim 1 , 4-sulfophthalic acid claim 1 , 4-amino-2-hydroxybenzoic acid claim 1 , 3-hydroxy-2-naphthoic acid claim 1 , salicylic acid claim 1 , 6-hydroxysalicylic acid claim 1 , 5-hydroxysalicylic acid claim 1 , 5-sulfosalicylic acid claim 1 , 3 claim 1 ,5-dinitrosalicylic acid claim 1 , 2 claim 1 ,5-dihydroxyterephthalic acid claim 1 , aurintricarboxylic acid claim 1 , disodium salt of 1 claim 1 ,4-dihydroxy-1 claim 1 ,3-benzenodisulfonic acid claim 1 , gallic acid claim 1 , pyrogallol claim 1 , 2 claim 1 ,3-naphthalenediol claim 1 , 4-methylcatechol claim 1 ,3-5-di-tert-butyl-catechol claim 1 , p-nitrocatechol claim 1 , 3 claim 1 ,4-dihydroxy-1-phenylalanine (DOPA) claim 1 , catechol (Table 2) claim 1 , rutin and ascorbic acid.6. Method according to claim 1 , characterized in that stage b) uses alcoholates claim 1 , preferably titanium( ...

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Номер записи: 29
03-01-2019 дата публикации

Method for the production of new nanomaterials

Номер: US20190001308A1
Автор: Nancy Linder, Nicolas PASTERNAK
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, Universite de Cergy-Pontoise

A method for producing new nanomaterials, 80 to 100 mol % of which are composed of TiO2 and 0 to 20 mol % are composed of another metal or semi-metal oxide that has a specific surface of 100 to 300 m2.g−1and 1 to 3 hydroxyl groups per nm2.

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Номер записи: 30
04-01-2018 дата публикации

Method of manufacturing micronized sandstone obtained from ceramics or industrial wastes of ceramic manufacturing containing TiO2 bio-additive, and product thereof

Номер: US20180002234A1
Автор: GASSI ANGELO
Принадлежит:

The present invention discloses a method of manufacturing micronized sandstone obtained from ceramics or industrial wastes of ceramic manufacturing, such as white paste, natural stones or clinker, including TiOas bio-additive, and product obtained by the micronized sandstone thereof. The ceramics and industrial wastes of ceramic are grinded in several steps and the resultant powders are collected by means of individual filters and further combined in a nanopowder micronizer for posterior treatment, where TiOhydrolyzed can be optionally added. This micronized sandstone comprising the bio-additive TiOis used in the production of plasters, mortars, grouts and/or as additive for paints and/or epoxy enriched with TiO. The micronized sandstone bio-additive with TiOcan be additionally subjected to two optional embodiments of the invention: treatment with or without the use of a pigment. In order to obtain the final product that can be used in the production of blocks, floors and other products of various sizes, an agglomerating agent combined with TiOis added to the micronized sandstone comprising the bio-additive TiO, either in an aqueous solution or as a dry product, optionally including colored oxides. 1. Method of manufacturing micronized sandstone obtained from ceramics or industrial waste of ceramics manufacturing containing TiObio-additive , characterized by comprising the steps of:{'b': 1', '2', '3, 'a. grinding the ceramics or ceramic waste in several mills/grinders (, , ),'}{'b': '4', 'b. obtaining the micronized sandstone () by passing the grinded ceramic material into a micronizer,'}{'b': 5', '4, 'c. adding pigments or colored oxides () to the micronized powder thereof (),'}{'b': 5', '5, 'sub': '2', 'i': 'b', 'd. processing the micronized colored powder () with a hydrolyzed solution of TiO(),'}{'b': 1', '1, 'sub': '2', 'e. drying (S) the micronized colored sandstone comprising TiOadditive (P)'}{'b': '1', 'sub': '2', 'f. mixing the obtained product (P) with an ...

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Номер записи: 31
04-01-2018 дата публикации

INTEGRATED PROCESS FOR MAKING PROPENE OXIDE AND AN ALKYL TERT-BUTYL ETHER

Номер: US20180002300A1
Автор: BOLZ David, WIEDERHOLD Holger
Принадлежит:

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising propane and iso-butane to provide a stream comprising propene, iso-butene and hydrogen; separating this stream into a stream consisting essentially of hydrogen and a stream comprising propene and iso-butene; separating the stream comprising propene and iso-butene into a stream comprising propene and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; and reacting a part or all of the stream comprising propene with hydrogen peroxide in the presence of an epoxidation catalyst to provide propene oxide. 110-. (canceled)11. An integrated process for making propene oxide and an alkyl tert-butyl ether comprising;{'b': 1', '2, 'a) a step of dehydrogenating a feed stream, S, comprising propane and iso-butane, to provide a stream, S, comprising propene, iso-butene and hydrogen;'}{'b': 2', '3', '4, 'b) a separation step separating stream S into a stream, S, consisting essentially of hydrogen and a stream, S, comprising propene and iso-butene;'}{'b': 4', '5', '6, 'c) a separation step separating stream S into a stream, S, comprising propene and a stream, S, comprising iso-butene;'}{'b': 5', '7, 'd) a step of reacting a part or all of stream S with hydrogen peroxide in the presence of an epoxidation catalyst to provide a stream, S, comprising propene oxide;'}{'b': '7', 'e) a separation step separating propene oxide from stream S;'}{'b': 6', '8, 'f) a step of reacting a part or all of stream S with an alkanol in the presence of a solid acid catalyst, to provide a stream, S, comprising an alkyl tert-butyl ether; and'}{'b': '8', 'g) a separation step separating the alkyl tert-butyl ether from stream S.'}12. The process of claim 11 , wherein the alkanol is methanol.13595. The process of claim 11 , wherein unreacted propane is ...

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Номер записи: 32
03-01-2019 дата публикации

Photocatalytic Conversion of Carbon Dioxide and Water Into Substituted or Unsubstituted Hydrocarbon(s)

Номер: US20190002364A1
Автор: ANDERSSON Gunther, GOLOVKO Vladimir, METHA Gregory F, NANN Thomas
Принадлежит:

A method for the production of hydrocarbon(s), such as methane, substituted hydrocarbons, such as methanol, or the production of hydrogen, the method comprising the steps of contacting a first catalyst with water in order to photocatalyse the splitting of at least some of the water into hydrogen and oxygen; and contacting a second catalyst with a gas stream comprising carbon dioxide and at least some of the hydrogen produced from step (a) in order to photocatalyse the reaction between the hydrogen and carbon dioxide to produce hydrocarbon(s), such as methane, and/or substituted hydrocarbons, such as methanol. In an embodiment, the catalyst comprises gold and or ruthenium nanoclusters supported on a substrate. 1. A method for the production of hydrocarbon(s) , such as methane , or substituted hydrocarbons , such as methanol , the method comprising the steps of:contacting a catalyst with water and carbon dioxide in the presence of light in order to photocatalyse:(i) the splitting of at least some of the water into hydrogen and oxygen; and(ii) the reaction between hydrogen and carbon dioxide to produce at least one of a hydrocarbon and/or substituted hydrocarbons;wherein the catalyst comprises at least gold and ruthenium, in the form of at least one nanocluster supported by a substrate.2. The method according to claim 1 , wherein support substrate is selected from the group comprising graphene claim 1 , graphite claim 1 , carbon black claim 1 , nanotubes claim 1 , fullerenes claim 1 , zeolites claim 1 , carbon nitrides claim 1 , metal nitrides and or oxides including zinc oxide or titanium oxide.3. The method according to claim 1 , wherein the gold and ruthenium nanocluster has at least one Au—Ru bond having a distance in the range of from about 2.5 to 3.0 Å.4. The method according to claim 1 , wherein the gold and ruthenium nanocluster comprise an average cluster size less than about 2 nm.5. A method for the production of hydrocarbon(s) claim 1 , such as methane claim ...

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Номер записи: 33
27-01-2022 дата публикации

Duct Assemblies for Air Management Systems and Methods of Manufacture

Номер: US20220023483A1
Автор: Bartosz Lance R., Folsom Michael E., Moreau Claude J., Poteet Steven, Pujar Vijay V., Smith Blair A.
Принадлежит: GOODRICH CORPORATION

An ultraviolet light surface protection system for a duct may comprise an interior surface of the duct; a light source operable to emit a germicidal ultraviolet light into a flow path of the duct defined by the interior surface of the duct to sterilize an air to be provided to a conditioned area; and a coating disposed on the interior surface, the coating configured to be ultraviolet resistive, reflective, and anti-microbial. 1. An ultraviolet light surface protection system for a duct , comprising:an interior surface of the duct;a light source operable to emit a germicidal ultraviolet light into a flow path of the duct defined by the interior surface of the duct to sterilize an air to be provided to a conditioned area; anda coating system disposed on the interior surface, the coating system configured to be ultraviolet resistive, reflective, and anti-microbial.2. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating system comprises an ultraviolet resistance layer claim 1 , a reflectivity layer claim 1 , an anti-microbial layer claim 1 , and a hydrophobicity layer.3. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a quaternary ammonium compound configured to be hydrophobic and anti-microbial.4. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a photoactivated metal oxide.5. The ultraviolet light surface protection system for the duct of claim 4 , wherein the photoactivated metal oxide comprises of at least one of titanium dioxide claim 4 , zinc oxide or titanium dioxide doped with nitrogen claim 4 , sulfur or iron.6. The ultraviolet light surface protection system for the duct of claim 1 , wherein the germicidal ultraviolet light has a wavelength between about 180 nm and about 280 nm.7. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a photocatalytic ...

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Номер записи: 34
11-01-2018 дата публикации

COMPOSITE WITH SYNERGISTIC EFFECT OF ADSORPTION AND VISIBLE LIGHT CATALYTIC DEGRADATION AND PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20180008953A1
Автор: Chen Dongyun, Jiang Jun, LI Najun, LU Jianmei
Принадлежит:

The invention discloses a composite with an adsorption-visible light catalytic degradation synergistic effect and a preparation method and application thereof. The preparation method includes the specific steps that firstly, a bismuth oxyiodide/bismuth oxychloride composite nano-particle loaded activated carbon fiber composite ACF@BiOIClis synthesized; then, the fiber surface is grafted with polyethyleneimine, and the end composite PEI-g-ACF@BiOIClis obtained. The composite can rapidly adsorb pollutants in water, and meanwhile the pollutants are efficiently degraded with a photocatalyst loaded on the surface of the composite; besides, the purpose of recycling and reusing the photocatalyst is achieved, the comprehensive treatment capability of the composite is improved, the service life of the composite is prolonged, and the use cost is lowered. 1. A preparation method of a composite with synergistic effect of adsorption and visible light catalytic degradation , which comprises the steps as below:1) preparation of activated carbon fibers with bismuth oxyiodide/bismuth oxychloride composite nanoparticles immobilized on:dissolving bismuth nitrate pentahydrate and activated carbon fiber in solvent to obtain solution A; dissolving potassium iodide and potassium chloride in solvent to obtain solution B; adding solution B to solution A under stirring, mixing evenly, then moving the reaction mixture to a hydrothermal reactor and reacting for 10 to 16 hours at 120 to 180° C., after the completion of the reaction, the reaction vessel is taken out, cooled and opened, and the fibrous product is collected by filtration, washed and dried to obtain bismuth oxyiodide/bismuth oxychloride composite nanoparticles immobilized activated carbon fiber composite;wherein,the molar ratio of bismuth nitrate pentahydrate, potassium iodide and potassium chloride is 1:x:(1−x), and 0 Подробнее

Номер записи: 35
14-01-2021 дата публикации

Improved Methods and Systems for Photo-Activated Hydrogen Generation

Номер: US20210008532A1
Автор: Gerlach Deidra L., Maxwell Deborah B.
Принадлежит:

Systems and methods for providing alternative fuel, in particular hydrogen photocatalytically generated by a system comprising photoactive nanoparticles and a nitrogenase cofactor are provided. In one aspect, the system includes a water soluble cadmium selenide nanoparticle (CdSe) surface capped with mercaptosuccinate (CdSe-MSA) and a NafY.FeMo-co complex comprising a NafY protein and an iron-molybdenum cofactor (FeMo-co), wherein the CdSe-MSA and NafY.FeMo-co complex are present in about 1:2 to 1:10 molar ratio. 1. A system for photocatalytically producing hydrogen gas , comprising:a water soluble cadmium selenide nanoparticle (CdSe) surface capped with mercaptosuccinate (CdSe-MSA); anda NafY.FeMo-co complex comprising a NafY protein and an iron-molybdenum cofactor (FeMo-co);wherein the CdSe-MSA and NafY.FeMo-co complex are present in about 1:2 to 1:10 molar ratio.2. The system of claim 1 , wherein the CdSe-MSA and the NafY.FeMo-co complex are present in about 1:2 claim 1 , 1:3 claim 1 , 1:4 or 1:5 molar ratio.3. The system of claim 1 , further comprising sodium dithionite for providing protons and electrons.4. The system of claim 3 , wherein the dithionite salt is provided at a concentration of about 2 mM to 1 M claim 3 , or about 2-100 mM claim 3 , or about 2-10 mM.5. The system of claim 3 , further comprising an additional proton source such as ascorbic acid claim 3 , acetic acid claim 3 , citric acid claim 3 , and carbon dioxide.6. The system of claim 1 , wherein the system is capable of photocatalytically producing hydrogen gas for an extended period of about 5-90 days claim 1 , 10-72 days or 39-72 days.7. The system of claim 1 , wherein the system is kept under anaerobic conditions.8Azotobacter vinelandii.. The system of claim 1 , wherein the NafY protein is derived from9. The system of claim 1 , wherein the FeMo-co is derived from a molybdenum-iron (MoFe) protein.10Azotobacter vinelandii.. The system of claim 9 , wherein the MoFe protein is derived from11. A ...

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Номер записи: 36
03-02-2022 дата публикации

Process for preparing dialkyl 1,4-cyclohexanedicarboxylates

Номер: US20220033618A1
Автор: Altmann Lena, Anton Johan, Grass Michael, Kraft Johannes, SCHNEIDER Thomas
Принадлежит: EVONIK OPERATIONS GMBH

A process prepares dialkyl 1,4-cyclohexanedicarboxylates by ring hydrogenation of the corresponding dialkyl terephthalate having a CO value of less than 0.3 mg KOH/g. The dialkyl 1,4-cyclohexanedicarboxylates thus produced can be used as plasticizers or as a component of a plasticizer composition for plastics, in particular PVC. 1. A process for preparing dialkyl 1 ,4-cyclohexanedicarboxylate in which the two alkyl groups both have at least 2 carbon atoms , the process comprising:carrying out a ring hydrogenation of a dialkyl terephthalate in which the two alkyl groups both have at least 2 carbon atoms, in the presence of a heterogeneous hydrogenation catalyst, with a hydrogen-containing gas, to form the dialkyl 1,4-cyclohexanedicarboxylate,wherein the dialkyl terephthalate in the ring hydrogenation has a CO value of less than 0.3 mg KOH/g.2. The process according to claim 1 , wherein each of the two alkyl groups of the dialkyl 1 claim 1 ,4-cyclohexanedicarboxylate have 3 to 10 carbon atoms.3. The process according to claim 1 , wherein the dialkyl terephthalate in the ring hydrogenation is prepared by transesterification of dimethyl terephthalate with an alcohol having at least 2 carbon atoms claim 1 , or by esterification of terephthalic acid with an alcohol having at least 2 carbon atoms.4. The process according to claim 3 , wherein the alcohol in the transesterification or in the esterification is an alcohol having 3 to 10 carbon atoms.5. The process according to claim 2 , wherein the dialkyl 1 claim 2 ,4-cyclohexanedicarboxylate is diisononyl 1 claim 2 ,4-cyclohexanedicarboxylate or di-2-ethylhexyl 1 claim 2 ,4-cyclohexanedicarboxylate.6. The process according to claim 1 , wherein the heterogeneous hydrogenation catalyst in the ring hydrogenation comprises a transition metal on a support material.7. The process according to claim 6 , wherein the transition metal is a metal of group 8 of the periodic table of the elements.8. The process according to claim 6 , ...

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Номер записи: 37
18-01-2018 дата публикации

PROCESS FOR SPONTANEOUS CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE

Номер: US20180016142A1
Автор: Casu Santiago, Kemmer Martina, KIEMEL RAINER, Stengel Sascha
Принадлежит:

Process for spontaneous catalytic decomposition of hydrogen peroxide through the use of a fixed-bed catalyst, characterised in that the fixed-bed catalyst was produced through the use of at least one exothermic-decomposing platinum precursor. 1. Process for spontaneous catalytic decomposition of hydrogen peroxide through the use of a fixed-bed catalyst , characterised in that the fixed-bed catalyst was produced through the use of at least one exothermic-decomposing platinum precursor.2. Process according to claim 1 , whereby the hydrogen peroxide is undiluted hydrogen peroxide or an aqueous composition containing 50 to 99 percent by weight hydrogen peroxide.3. Process according to claim 1 , whereby the hydrogen peroxide is added to the fixed-bed catalyst.4. Process according to claim 3 , whereby the addition of hydrogen peroxide to the fixed-bed catalyst takes place within up to one minute.5. Process according to claim 1 , whereby the addition takes place by spraying of droplets or by dispensing of liquid.6. Process according to claim 1 , whereby the fixed-bed catalyst comprises one or more porous catalyst supports and at least one catalytically active platinum species.7. Process according to claim 1 , whereby the fixed-bed catalyst is a washcoat-coated or uncoated monolith catalyst claim 1 , a bulk catalyst comprising washcoat-coated or uncoated bulk form bodies claim 1 , a catalyst bed comprising wash coat-coated or uncoated bulk form bodies or a washcoat-coated metal honeycomb or metal mesh catalyst.8. Process according to claim 6 , whereby the platinum of the at least one catalytically active platinum species contained in the fixed-bed catalyst originates claim 6 , at least in part claim 6 , from the at least one exothermic-decomposing platinum precursor.9. Process according to claim 1 , whereby the platinum content of the fixed-bed catalyst is 0.5 to 200 g per litre of catalyst volume.10. Process according to claim 6 , whereby the material of the porous ...

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Номер записи: 38
17-01-2019 дата публикации

METHOD FOR FABRICATING A TITANIUM-CONTAINING SILICON OXIDE MATERIAL WITH HIGH THERMAL STABILITY AND APPLICATIONS OF THE SAME

Номер: US20190015817A1
Автор: Hsu Yu-Chuan, TSAI Hsi-Chin
Принадлежит:

The present invention discloses a method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same, wherein a titanium source, a silicon source, an alkaline source, a template molecule and a peroxide are formulated into an aqueous solution; the aqueous solution reacts to generate a solid product; the solid product is separated from the aqueous solution with a solid-liquid separation process and dried; the solid product is calcined to obtain a titanium-containing silicon oxide material with high specific surface area. The titanium-containing silicon oxide material fabricated by the present invention has high thermal stability. Therefore, it still possesses superior catalytic activity after calcination. The titanium-containing silicon oxide material can be used to catalyze epoxidation of olefin and is very useful in epoxide production. 1. A method for fabricating a titanium-containing silicon oxide material with high thermal stability , comprising steps:mixing a titanium source, a silicon source, an alkaline source, a template molecule, a solvent and a peroxide to form an aqueous solution;after said aqueous solution have reacted, undertaking a solid-liquid separation process of said aqueous solution, and undertaking a drying process of a solid product separated from said aqueous solution; and {'br': None, 'i': x', 'x, 'sub': 2', '2, 'TiO(1−)SiO\u2003\u2003(I)'}, 'undertaking a calcination process of said solid product acquired in said solid-liquid separation process to obtain a titanium-containing silicon oxide material having Formula (I) in an anhydrous statewherein x ranges from 0.00001-0.5;wherein said titanium-containing silicon oxide material has an average pore size of 10 angstroms or more;wherein said titanium-containing silicon oxide material has a pore size of 90% or more of the total pore volume of 5 to 200 Å; and{'sup': '3', 'wherein said titanium-containing silicon oxide material has a specific ...

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Номер записи: 39
21-01-2021 дата публикации

PHOTOCATALYST TRANSFER FILM AND PRODUCTION METHOD THEREOF

Номер: US20210016249A1
Автор: FURUDATE Manabu, INOUE Tomohiro, YUYAMA Masahiro
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

Provided are a photocatalyst transfer film allowing a uniform and highly transparent photocatalyst layer to be transferred to the surfaces of various transfer base materials; and a production method thereof. The photocatalyst transfer film has, on a biaxially oriented polypropylene film, a photocatalyst layer containing a titanium oxide particle-containing photocatalyst, a silicon compound and a surfactant. The production method of the photocatalyst transfer film includes applying a photocatalyst coating liquid to a biaxially oriented polypropylene film; and performing drying. The photocatalyst coating liquid contains a titanium oxide particle-containing photocatalyst, a silicon compound, a surfactant and an aqueous dispersion medium. 1. A photocatalyst transfer film having , on a biaxially oriented polypropylene film , a photocatalyst layer containing a titanium oxide particle-containing photocatalyst , a silicon compound and a surfactant.2. The photocatalyst transfer film according to claim 1 , wherein the silicon compound is a hydrolysis condensate of a tetrafunctional silicon compound claim 1 , the hydrolysis condensate being obtained under the presence of an organic ammonium salt.3. The photocatalyst transfer film according to claim 1 , wherein the surfactant is an acetylene-based surfactant.4. The photocatalyst transfer film according to claim 1 , wherein the photocatalyst layer has a thickness of 20 to 300 nm.5. The photocatalyst transfer film according to claim 1 , wherein the biaxially oriented polypropylene film has a thickness of 12.5 to 100 μm.6. The photocatalyst transfer film according to claim 1 , wherein a protective layer containing a silicon compound is further laminated on the photocatalyst layer.7. A method for producing a photocatalyst transfer film claim 1 , comprising:applying a photocatalyst coating liquid to a biaxially oriented polypropylene film, the photocatalyst coating liquid containing a titanium oxide particle-containing photocatalyst ...

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Номер записи: 40
16-01-2020 дата публикации

METHOD FOR APPLYING PHOTOCATALYTIC COATINGS WITHOUT USING BINDERS, AND USE OF A COATING

Номер: US20200016587A1
Автор: Hahn Christopher, Schnabel Tobias
Принадлежит:

The invention relates to a method for applying titanium dioxide-based photocatalytic coatings to a carrier material without using binders. The invention also relates to the use of a coating. According to the invention, a titanium dioxide suspension together with a carrier liquid is sprayed onto a hot carrier in the form of a fine aerosol so that the carrier liquid flash evaporates and titanium dioxide particles of the titanium dioxide suspension are flash sintered onto the carrier material, water being used as the carrier liquid and the carrier material having a temperature of 150 to 250° C. during spraying. According to the invention, a porous and yet stable layer for a catalyst for an efficient and rapid degradation of pollutants is produced. 1. A method for binder-free application of titanium dioxide-based photocatalytic coatings to a support material , where a titanium dioxide suspension with a carrier liquid is sprayed in the form of a fine aerosol onto a hot support , so that the carrier liquid undergoes flash evaporation and titanium dioxide particles of the titanium dioxide suspension undergo flash sintering onto the support material , the carrier liquid used being water , during the sprayed application, the support material has a temperature of 150 to 250° C., thus forming a porous and yet stable layer for a catalyst for efficient and rapid pollutant degradation,', 'the heat is generated in the support material itself, and', 'the support material is traversed by an electrical current., 'characterized in that'}2. The method as claimed in claim 1 , characterized in that during the sprayed application claim 1 , the support material has a temperature which lies above the boiling temperature of the carrier liquid.3. The method as claimed in claim 1 , characterized in that the titanium dioxide suspension has a fraction of 5 to 20 mass % of titanium dioxide particles.4. The method as claimed in claim 1 , characterized in that the method is multiply repeated.5. ( ...

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Номер записи: 41
17-01-2019 дата публикации

PURIFICATION AND DECOLORIZATION OF POLYMERS

Номер: US20190016860A1
Автор: LEWIS George Sal, MIDDLETON John Charles, SEARCY Justin Drew
Принадлежит:

Methods according to the present invention decolorize a polymer by mixing a solution of the polymer with a photocatalyst and exposing the mixture to ultraviolet light; by way of non-limiting example, the polymer may be a star polymer and the photocatalyst may be titanium dioxide. Methods according to the present invention also utilize a metal scavenger, in some embodiments a solid-phase metal scavenger, to remove a metal catalyst from a polymer solution; by way of non-limiting example, the metal catalyst may be a tin catalyst. The decolorization methods and the catalyst removal methods of the present invention may be practiced separately, sequentially in any order, or simultaneously. 1. A method for decolorization of a polymer composition comprising a polymer and a solvent , comprising:(a) adding a photocatalyst to the polymer composition, and(b) exposing the polymer composition to ultraviolet (UV) light to remove color from the polymer composition.2. A method for preparing a polymer composition comprising a polymer and a solvent , comprising:(a) adding a metal scavenger to the polymer composition to form a complex with a metal contaminant in the polymer composition;(b) separating the metal scavenger and metal contaminant complex from the polymer;(c) adding a photocatalyst to the polymer composition;(d) exposing the polymer composition to ultraviolet (UV) light to remove color from the polymer composition; and(e) separating the photocatalyst from the polymer composition.3. A method for preparing a polymer composition comprising a polymer and a solvent , comprising:(a) adding a metal scavenger to the polymer composition to form a complex with a metal contaminant in the polymer composition; and(b) separating the metal scavenger and metal contaminant complex from the polymer,wherein the metal scavenger is a metal scavenger chelating agent.4. A method for preparing a pharmaceutical composition , comprising:(a) treating a polymer composition comprising a polymer and a ...

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Номер записи: 42
26-01-2017 дата публикации

METHOD AND APPARATUS FOR GENERATING AND FOR FUSING ULTRA-DENSE HYDROGEN

Номер: US20170022055A1
Автор: Kotzias Bernhard
Принадлежит:

A method for generating and for fusing ultra-dense hydrogen in which molecular hydrogen is fed into at least one cavity and catalyzed, where the splitting and subsequent condensation of the molecular hydrogen is initiated on a catalyst of the cavity to form an ultra-dense hydrogen. The ultra-dense hydrogen is exposed to pressure or electromagnetic radiation to initiate fusion of the ultra-dense hydrogen in the at least one cavity and the reaction heat is led out from the at least one cavity. The pressure as mechanical resonance or the electromagnetic radiation as electromagnetic resonance amplifies the field and therefore the effect. Also, an apparatus for carrying out the method is disclosed. 113-. (canceled)14. A method for generating and for fusing ultra-dense hydrogen , in which molecular hydrogen is led into at least one cavity and catalyzed , comprising the following steps:initiating condensation of the molecular hydrogen at a catalyst of the cavity to an ultra-dense hydrogen,initiating fusion of the ultra-dense hydrogen in the at least one cavity, andguiding reaction heat out from the at least one cavity.15. The method according to claim 14 , wherein molecular hydrogen is bound to the ultra-dense hydrogen after the condensing.16. The method according to claim 14 , wherein the fusion is initiated electrically claim 14 , electromagnetically or mechanically.17. The method according to claim 14 , wherein the reaction heat guided out from the at least one cavity is used for further initiation of fusion.18. The method according to claim 14 , wherein the reaction heat guided out from the at least one cavity is converted into mechanical claim 14 , electrical or chemical energy.19. An apparatus for carrying out a method for generating and for fusing ultra-dense hydrogen claim 14 , in which molecular hydrogen is led into at least one cavity and catalyzed claim 14 , comprising the steps of initiating condensation of the molecular hydrogen at a catalyst of the cavity to ...

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Номер записи: 43
10-02-2022 дата публикации

SURFACE COATINGS FOR SELF-DECONTAMINATION

Номер: US20220040674A1
Автор: Young Roger K.
Принадлежит: Pure-Light Technologies, Inc.

An apparatus includes a substrate having a surface and a transparent photocatalyst coating secured on the surface of the substrate, wherein the transparent photocatalyst coating includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The substrate is preferably selected from an appliance handle, doorknob, switch, keyboard, countertop, appliance handle, equipment button, touchscreen, handrail, light emitting device, and light cover. Such substrates are frequently touched by one or more users and may become contaminated. However, the transparent photocatalyst coating may be self-decontaminating. 1. An apparatus , comprising:a substrate having a surface; anda transparent photocatalyst coating secured on the surface of the substrate, wherein the transparent photocatalyst coating includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof.2. The apparatus of claim 1 , wherein the substrate is selected from an appliance handle claim 1 , doorknob claim 1 , switch claim 1 , keyboard claim 1 , countertop claim 1 , appliance handle claim 1 , equipment button claim 1 , touchscreen claim 1 , handrail claim 1 , light emitting device claim 1 , and light cover.3. The apparatus of claim 1 , wherein the photocatalyst coating is transparent.4. The apparatus of claim 3 , wherein the photocatalyst coating is secured to the surface of the substrate by a layer of a binder disposed between the surface of the substrate and the photocatalyst coating claim 3 , wherein the binder layer is transparent.5. The apparatus of claim 1 , wherein the photocatalyst coating is formed from a mixture including a titanium oxide sol and an amorphous titanium peroxide sol claim 1 , wherein the mixture includes less than or equal to 30 weight percent (wt %) titanium oxide sol based ...

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Номер записи: 44
25-01-2018 дата публикации

CONTINUOUS HYDROGENATION OF LEVULINIC ACID

Номер: US20180022721A1
Автор: ENGENDAHL Barthel, VAN DER SPOEL Jan, WIERTZ Roel Wim
Принадлежит:

The invention relates to a continuous or repetitive batch process for the hydrogenation of levulinic acid (LA) or esters thereof to at least gamma valerolactone (GVL) in a reactor comprising a feed stream and an outlet stream, in the presence of a solid Ru catalyst, said process comprising (a) pretreating said solid Ru catalyst with a reductant; and (b) reacting levulinic acid with hydrogen and the pretreated solid Ru catalyst obtained in step (a) at a temperature and residence time suitable to form at least GVL, characterized in that the pretreatment is in the presence of a first solvent which comprises water. This process is stable and little or no Ru will leak form the support. 1. Continuous or repetitive batch process for the hydrogenation of levulinic acid (LA) or esters thereof to at least gamma valerolactone (GVL) in a reactor comprising a feed stream and an outlet stream , in the presence of a solid Ru catalyst , said process comprising(a) pretreating said solid Ru catalyst with a reductant; and(b) reacting levulinic acid with hydrogen and the pretreated solid Ru catalyst obtained in step (a) at a temperature and residence time suitable to form at least GVL,characterized in that the pretreatment is done in the presence of a first solvent which comprises water.2. Process according to wherein the pretreatment is done at a temperature of 350° C. or less.3. Process according to wherein the reductant is hydrogen.4. Process according to wherein the temperature in step (a) is between 80° C. and 350° C. claim 1 , preferably the temperature is the same as in step (b).5. Process according to wherein step (a) and step (b) are carried out in the same reactor.6. Process according to wherein the first solvent is essentially free of GVL.7. Process according to wherein the hydrogenation reaction is done in the presence of a second solvent.8. Process according to wherein the feed stream comprises LA and optionally (at least part of) said second solvent.9. Process according ...

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Номер записи: 45
10-02-2022 дата публикации

COATINGS THAT REDUCE OR PREVENT BARNACLE ATTACHMENT TO A MARINE STRUCTURE

Номер: US20220041258A1
Автор: Young Roger K.
Принадлежит:

An apparatus includes a marine component or structure having a surface to be exposed to a marine environment during use. A photocatalyst coating is secured to the surface of the marine structure, wherein the photocatalyst coating includes titanium oxide. The marine component or structure is preferably selected from a boat hull, dock post, dock piling, pier, and buoy. A method may be provided for reducing or preventing barnacle attachment to a marine component or structure, including forming a transparent photocatalyst coating on an external surface of the marine structure, wherein the transparent photocatalyst coating includes a titanium oxide, and placing the marine component or structure in service within a marine environment. 1. An apparatus , comprising:a marine component or structure having a surface to be exposed to a marine environment during use of the marine component or structure; anda photocatalyst coating secured to the surface of the marine structure, wherein the photocatalyst coating includes titanium oxide.2. The apparatus of claim 1 , wherein the marine component or structure is selected from a boat hull claim 1 , dock post claim 1 , dock piling claim 1 , pier claim 1 , and buoy.3. The apparatus of claim 1 , wherein the photocatalyst coating further includes a fluorescent dye and/or ultra-fine glitter.4. The apparatus of claim 1 , wherein the titanium oxide includes anatase titanium oxide.5. The apparatus of claim 1 , wherein the photocatalyst coating includes a further photocatalytic oxide including indium tin oxide and/or aluminum zinc oxide.6. The apparatus of claim 1 , wherein the marine structure includes a material selected from wood claim 1 , fiberglass claim 1 , plastic claim 1 , metal claim 1 , and glass.7. The apparatus of claim 1 , wherein the photocatalyst coating is secured to a layer of paint that has been applied to the surface of the marine structure.8. The apparatus of claim 1 , further comprising:a transparent binder layer secured ...

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Номер записи: 46
10-02-2022 дата публикации

PHOTOCATALYST FORMULATIONS AND COATINGS

Номер: US20220042671A1
Автор: Young Roger K.
Принадлежит: Pure-Light Technologies, Inc.

An apparatus includes a substrate having a surface, and a transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The photocatalyst coating may be formed on a substrate using a formulation that includes an aqueous mixture of titanium oxide and amorphous titanium peroxide, wherein the aqueous mixture may further include one of the components. A method of forming the photocatalyst coating may include applying an aqueous mixture of titanium oxide and amorphous titanium peroxide to a surface of the substrate, wherein the photocatalyst coating includes a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate. The aqueous mixture may then be dried and heated to 100 degrees Celsius or greater. 1. An apparatus , comprising:a substrate having a surface; anda transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the transparent semiconductor photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate.2. The apparatus of claim 1 , wherein the component is a fluorescent dye.3. The apparatus of claim 1 , wherein the component is ultra-fine glitter.4. The apparatus of claim 1 , wherein the component is indium tin oxide.5. The apparatus of claim 1 , wherein the component is aluminum zinc oxide.6. The apparatus of claim 1 , wherein the component is silver nitrate.7. The apparatus of claim 1 , wherein the substrate is a transparent material selected from glass claim 1 , fused quartz and plastic.8. The apparatus of claim 7 , further comprising:a light-emitting element disposed adjacent to the substrate to direct light through the transparent substrate ...

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Номер записи: 47
02-02-2017 дата публикации

Unit for chlorine dioxide generation and chlorine dioxide generation device

Номер: US20170028371A1
Автор: Daisuke Kato, Kazuhiko Taguchi, Kazuki Matsubara, Koichi Nakahara, Koshiro Sogawa, Kouichi Taura, Miyusse Sakasegawa, Yasuhiro Takigawa
Принадлежит: Taiko Pharmaceutical Co Ltd

The present invention provides a chlorine dioxide generation unit that can release practically sufficient amount of chlorine dioxide for an extended period of time while being compact. The present invention provides a chlorine dioxide generation unit, characterized in that said unit comprises an agent storage space portion and at least two light source portions, said light source portion is for generating light consisting of wavelengths substantially in the visible region, said agent storage space portion stores an agent comprising solid chlorite, and said agent storage space portion comprises one or more openings so that air could move in and out of said agent storage space portion, wherein chlorine dioxide gas is generated by irradiating said light generated from said light source portion onto said agent present inside said agent storage space portion.

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Номер записи: 48
02-02-2017 дата публикации

Processes for the manufacturing of oxidation catalysts

Номер: US20170028386A1
Автор: ARCHER Raymond, DIAS ERIC L., Murphy Vincent J., Salem George Frederick, Shoemaker James, Zhu Guang
Принадлежит: RENNOVIA INC.

Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts. 126-. (canceled)27. A process for manufacturing an oxidation catalyst comprising the steps of:a) mixing a support with an aqueous solution comprising at least one gold-containing compound to form a slurry,b) adding a base to the slurry to form an insoluble gold complex which deposits on the surface of the support thereby forming a gold-containing support,c) heating the gold-containing support,d) mixing the gold-containing support from step c) with an aqueous solution or a colloid comprising at least one platinum-containing compound to impregnate the gold-containing support with the platinum-containing compound,e) drying the resulting impregnated support from step d) at a temperature up to about 120° C., andf) reducing platinum on the dried impregnated support from step e) at a temperature in the range of from about 200° C. to about 600° C. to produce the oxidation catalyst, wherein the oxidation catalyst comprises particles comprising gold and particles comprising platinum on the ...

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Номер записи: 49
23-01-2020 дата публикации

RADIOACTIVE CESIUM ADSORBENT AND METHOD OF REMOVING RADIOACTIVE CESIUM USING THE SAME

Номер: US20200027615A1
Автор: KIM Hyuncheol, Kim Minsun, KIM Soonhyun, Lee Wanno, LIM Sang Kyoo
Принадлежит:

A radioactive cesium adsorbent includes photocatalyst particles and Prussian blue. The ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles. A method of removing radioactive cesium using the radioactive cesium adsorbent includes preparing a composition comprising photocatalyst particles and Prussian blue; preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; and reducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution. 1. A radioactive cesium adsorbent comprising:photocatalyst particles; andPrussian blue,wherein ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles.2. The radioactive cesium adsorbent according to claim 1 , wherein the photocatalyst particles comprise one or more selected from the group consisting of TiO claim 1 , ZnO claim 1 , WO claim 1 , SnO claim 1 , CdS claim 1 , and FeO.3. The radioactive cesium adsorbent according to claim 1 , wherein activation of the photocatalyst particles is caused by UV light within a wavelength range within which the photocatalyst particles are activated.5. A method of removing radioactive cesium claim 1 , comprising:preparing a composition comprising photocatalyst particles and Prussian blue;preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; andreducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution.6. The method according to claim 5 , wherein claim 5 , in the preparing of a precursor solution claim 5 , a total concentration of the photocatalyst particles and the Prussian blue contained in the precursor solution is 2 to 20 g/L.7. The method ...

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Номер записи: 50
29-01-2015 дата публикации

PROCESS FOR PRODUCING CARBON SUBSTRATES LOADED WITH METAL OXIDES AND CARBON SUBSTRATES PRODUCED IN THIS WAY

Номер: US20150031528A1
Автор: Schulz Christof, Wiggers Hartmut
Принадлежит:

The present invention relates to a process for producing a carbon substrate loaded with metal oxides, in particular a carbon material which contains metal oxide nanoparticles and is preferably suitable for use in a catalyst and/or as a catalyst, wherein, in a first process step, nanoparticles of metal oxides are introduced into a matrix based on at least one organic polymer, in particular are dispersed therein, and, in a second process step, the polymer matrix containing the nanoparticles is subsequently carbonised to carbon, optionally followed by a third process step of activation. 1. A carbon substrate loaded with metal oxides on the basis of a carbon material comprising metal oxide nanoparticles ,wherein the carbon substrate contains nanoparticles of metal oxides incorporated in a porous carbon matrix.2. The carbon substrate according to claim 1 ,{'sup': '3', 'wherein the carbon substrate has a porosity, determined as the total pore volume in accordance with Gurvich, in the range from 0.01 to 4 cm/g.'}3. The carbon substrate according to claim 1 ,wherein 10 to 80 percent by volume of the total volume of the carbon substrate is formed by pores.4. The carbon substrate according to claim 1 ,{'sup': '2', 'wherein the carbon substrate has a BET surface area in the range from 100 to 2,000 m/g and a volume-based content of metal oxide(s).'}5. The carbon substrate according to claim 1 ,wherein the carbon substrate has a volume-based content of metal oxide(s) and/or metal oxide nanoparticles in the carbon substrate in the range from 0.01 to 20 percent by volume based on the carbon substrate and wherein the carbon substrate has a mass-based content of metal oxide(s) and/or metal oxide nanoparticles in the carbon substrate in the range from 0.1 to 25 percent by weight based on the carbon substrate.6. The carbon substrate according to claim 1 ,wherein the metal oxide nanoparticles have a mean particle size in the range from 0.1 to 1,000 nm.7. The carbon substrate according ...

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Номер записи: 51
01-02-2018 дата публикации

PHOTOCATALYTIC FILTER FOR DEGRADING MIXED GAS AND MANUFACTURING METHOD THEREOF

Номер: US20180029017A1
Автор: Cho Geundo, Jeong JaeHak, KIM Jiwon, Ku Hye Kyung, Lee Doug Youn, Suh Daewoong, Yi Jaeseon, Yoon Kyung Sik
Принадлежит:

An photocatalytic filter is provided to include a support; and a photocatalytic material coated on the support to cause a photocatalytic reaction to degrade an undesired gas present in an air, and wherein the photocatalytic filter has cells with a width equal to or less than 2 mm, thereby providing an air resistance in a direction facing UV LED for the photocatalytic activation, the air flow having a minimized air resistance. 120-. (canceled)21. A photocatalytic filter including:a support; anda photocatalytic material coated on the support to cause a photocatalytic reaction to degrade an undesired gas present in an air, andwherein the photocatalytic filter has cells with a width equal to or less than 2 mm, thereby providing an air resistance in a direction facing UV LED for the photocatalytic activation, the air flow having a minimized air resistance.22. The photocatalytic filter of claim 21 , wherein the minimized air resistance is not greater than 1.32 m/s.23. The photocatalytic filter of claim 21 , wherein the minimized air resistance is between 1.05 m/s and 1.25 m/s.24. The photocatalytic filter of claim 21 , wherein the photocatalytic material includes titanium dioxide (TiO).25. The photocatalytic filter of claim 21 , wherein the photocatalytic filter has a height between 5 mm to 12 mm.26. The photocatalytic filter of claim 21 , wherein the photocatalytic filter allows a first undesired gas that reacts later than a second undesired gas in a competitive reaction is degraded from an initial stage of the photocatalytic reaction.27. The photocatalytic filter of claim 21 , wherein the support is further coated with metal compounds.28. The photocatalytic filter of claim 27 , wherein the photocatalytic filter exhibits a higher removal rate of the undesired gas as compared to a photocatalytic filter without including the metal compounds.29. The photocatalytic filter of claim 27 , wherein the metal compounds include a tungsten (W) compound including HWO.30. The ...

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Номер записи: 52
02-02-2017 дата публикации

Method of Dispersing Anatase Titanium Dioxide for Penetration in Concrete Structures to Reduce Pollutants

Номер: US20170029342A1
Автор: Durante Colin, Higgins Craig
Принадлежит:

Methods for embedding photocatalytic titanium dioxide in concrete surfaces to reduce pollutants via photocatalytic reactions are provided herein. One method includes mixing a solvent compound with an anatase titanium dioxide (TiO) photocatalyst, applying an amount of concrete treatment compound to an upper surface of the concrete, the concrete treatment compound comprising a mixture of a liquid carrier compound with the anatase titanium dioxide (TiO) photocatalyst. 1. A method for treating a concrete structure , the method comprising:{'sub': 2', '2, 'mixing a solvent compound with an anatase titanium dioxide (TiO) photocatalyst such that the anatase titanium dioxide (TiO) photocatalyst is dispersed; and'}{'sub': '2', 'applying an amount of concrete treatment compound to an upper surface of the concrete, the concrete treatment compound comprising a mixture of a liquid carrier compound with the anatase titanium dioxide (TiO) photocatalyst.'}2. The method according to claim 1 , wherein the compound includes at least one of tetrachloroethylene claim 1 , toluene claim 1 , turpentine claim 1 , acetone claim 1 , methyl acetate claim 1 , ethyl acetate claim 1 , hexane claim 1 , citrus terpenes claim 1 , ethanol claim 1 , methyl ethyl ketone claim 1 , mineral spirits claim 1 , and ethyl alcohol.3. The method according to claim 1 , wherein the liquid carrier compound penetrates the concrete to a depth from approximately a sixteenth of an inch to approximately a quarter of an inch claim 1 , as measured from an upper surface of the concrete claim 1 , so as to embed the titanium dioxide (TiO) photocatalyst therein.4. The method according to claim 3 , wherein the liquid carrier compound is configured to simultaneously seal and harden the concrete claim 3 , and fills voids in the concrete so as to increase resistance of the concrete to deleterious effects.5. The method according to claim 4 , wherein the deleterious effects include at least one of water damage claim 4 , chloride ...

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Номер записи: 53
17-02-2022 дата публикации

Air-Disinfecting Photocatalytic Device

Номер: US20220047769A1
Автор: Maa Chia-Yiu, Yu Chun-Te
Принадлежит:

An air-disinfecting photocatalytic device includes a housing, an air-permeable porous carrier with at least two sides, a fan, and a light source. The air-permeable porous carrier contains a photocatalyst material, and the light source activates the photocatalyst material in air-permeable porous carrier. The housing, the air-permeable porous carrier, and the fan together form an air chamber. The fan operates to either increase or deplete the air in the air chamber, resulting an air pressure difference between the air inside and outside the air chamber, and causing the air to pass through the air-permeable porous carrier from the high air pressure side of the air-permeable porous carrier to the low air pressure side of the air-permeable porous carrier. As the air passes through the air-permeable porous carrier, airborne pathogens are trapped on the surface of the air-permeable porous carrier, on which light-activated photocatalyst material kills the pathogens trapped thereon. 1. An air-disinfecting photocatalytic device , comprisinga housing;an air-permeable porous carrier with at least two sides;a fan;a light source, the housing houses the air-permeable porous carrier, the fan, and the light source,', 'the air-permeable porous carrier contains a photocatalyst material,', 'the light source emits a light to activate the photocatalyst material in the air-permeable porous carrier,', 'the housing, the air-permeable porous carrier, and the fan together form an air chamber,', 'the fan operates to either increase or deplete an amount of air in the air chamber, resulting in an air pressure difference between a first air pressure inside the air chamber and a second air pressure outside the air chamber, thereby causing air to pass through the air-permeable porous carrier from a high air pressure side of the air-permeable porous carrier to a low air pressure side of the air-permeable porous carrier,', 'airborne pathogens are trapped on a surface of the air-permeable porous ...

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Номер записи: 54
02-02-2017 дата публикации

PHOTOCATALYTIC THERMAL BARRIER COATING

Номер: US20170030510A1
Автор: Dunlap Thomas
Принадлежит:

A thermally insulated photocatalytic coating is provided. The photocatalytic coating includes a photocatalyst material capable of being activated by irradiation with a light source. Further, the photocatalytic coating includes a thermal barrier compound adapted to reduce temperature of the photocatalytic material for increasing efficiency of the photocatalytic layer. The present invention also relates to various articles, such as CFL lamps and bulbs, which have the coating applied thereon. These articles are very helpful in eliminating various impurities from ambient air. 1. A thermally insulated photocatalytic coating comprising:at least one photocatalyst material capable of being activated by an irradiation from a light source; andat least one thermal barrier compound comprising a reflection coefficient of about 0.25 and up to about 0.75, and thereby adapted to reduce temperature of the photocatalytic material.2. The thermally insulated photocatalytic coating of claim 1 , wherein the photocatalyst material comprises photocatalytic nanoparticles.3. The thermally insulated photocatalytic coating of claim 1 , wherein the photocatalyst material is selected from a group comprising titanium dioxide claim 1 , tungsten oxide claim 1 , strontium titanate claim 1 , and zinc oxide.4. The thermally insulated photocatalytic coating of claim 1 , wherein thermal barrier compound comprises thermal barrier nanoparticles.5. The thermal insulated photocatalytic coating of claims 1 , wherein the thermal barrier compound is selected from a group comprising indium tin oxide (ITO) claims 1 , antimony tin oxide (ATO) or ceramic particles.6. The thermal insulated photocatalytic coating of claim 1 , wherein the light source is at least one of a fluorescent bulb claim 1 , a fluorescent bulb claim 1 , incandescent light claim 1 , and Light Emitting Diode (LED).7. An article comprising a base substrate coated with the thermally insulated photocatalytic coating of .8. The article of claim 7 , ...

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Номер записи: 55
11-02-2016 дата публикации

Method for Manufacturing a Photocatalyst Based on Titanium Dioxide Containing Carbon or Metal

Номер: US20160038916A1
Автор: Friedrich Joerg, Meifert Raimund
Принадлежит:

A method for manufacturing a photocatalyst, based on titanium dioxide containing carbon or metal, in a pulsation reactor, where a raw material mixture, consisting of nanoparticulate titanium oxyhydrate and an aqueous solution or suspension, containing at least one organic, carbon-containing compound or metal ions, is fed into the pulsating hot-gas stream of the pulsation reactor and the titanium dioxide particles containing carbon or metal are formed. The hot-gas stream has a temperature of ≧450° C. following addition of the material and contains an excess of oxygen. In contrast to the known manufacturing methods, the method according to the invention allows reproducibly good product qualities to be achieved. 1. A method for manufacturing a particulate photocatalyst , based on titanium dioxide containing carbon or metal , in a pulsation reactor , comprising:feeding a raw material mixture, containing at least one organic, carbon-containing compound or metal ions, and nanoparticulate titanium oxyhydrate, into a pulsating hot-gas stream of a pulsation reactor,forming titanium dioxide particles containing carbon or metal;separating the formed titanium dioxide particles from the gas stream;wherein the raw material mixture is an aqueous solution or suspension;wherein the hot-gas stream contains an excess of oxygen; andwherein the temperature of the hot-gas stream following addition of the raw material mixture is at least about 450° C.2. The method according to wherein the carbon or the metal is at least partially intercalated in areas of the manufactured titanium dioxide particles close to the surface.3. The method of wherein the form of the titanium oxyhydrate that is added to the raw material mixture is selected from the group consisting of a powder or an aqueous suspension with a solids content of at least about 10% by weight.4. The method of wherein the form of the titanium oxyhydrate is an aqueous suspension having a solids content of from about 20 to about 40 ...

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Номер записи: 56
24-02-2022 дата публикации

CATALYTIC HYDROGEN PEROXIDE GENERATION FOR DISINFECTION

Номер: US20220054698A1
Автор: Suchy Christophe
Принадлежит:

In various implementations, systems and processes may generate hydrogen peroxide using a catalyst that includes titanium dioxide, silver, antimony, copper, and/or rhodium. The systems and processes may utilize an air stream in the presence of UV light and a catalyst to generate hydrogen peroxide. The generated hydrogen peroxide may be utilized to disinfect air and surfaces. 1. A disinfecting system comprising:a mercury arc lamp;{'claim-text': ['a first zone comprising quartz;', 'a second zone comprising fused silica, wherein at the second zone extends along approximately 1% to approximately 5% of a length of the dual-zoned sleeve;'], '#text': 'a dual-zoned sleeve comprising:'}wherein the mercury arc lamp is disposed at least partially in a lumen of the sleeve;{'claim-text': ['one or more channels;', {'claim-text': ['approximately 1 mol % to approximately 25 mol % silver;', 'approximately 1 mol % to approximately 25 mol % rhodium;', 'approximately 0.1 mol % to approximately 2 mol % copper; and', 'approximately 1 mol % to approximately 25 mol % antimony;'], '#text': 'a catalytic surface on at least a portion of the substrate, wherein the catalytic surface comprises a doped titanium dioxide catalyst, wherein the doped titanium dioxide catalyst comprises:'}, 'wherein at least a portion of the substrate is exposed to light passing through the sleeve;'], '#text': 'a substrate comprising:'}wherein air that passes though one or more of the openings in the substrate is at least partially disinfected by hydrogen peroxide generated by exposure of the air to the catalytic surface and the light passing through the sleeve.2. The disinfecting system of wherein the mercury lamp comprises a low-pressure mercury vapor lamp.3. The disinfecting system of wherein a length of the second zone that is exposed comprises approximately 2.5% of a length of the dual-zoned sleeve.4. The disinfecting system of wherein the doped titanium catalyst comprises approximately 5% rhodium claim 1 , ...

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Номер записи: 57
24-02-2022 дата публикации

METHOD FOR THE PRODUCTION OF BUTANOL USING A TITANIUM-BASED BIMETALLIC HETEROGENEOUS CATALYST

Номер: US20220055016A1
Автор: Sanchez Ricardo Arreola
Принадлежит:

The present invention relates to a method for the production of butanol using a titanium-based bimetallic heterogeneous catalyst comprising a support of titanium dioxide doped with cobalt cations and transition metal nanoparticles impregnated in the support. The method described produces butanol as a single product, it is environmentally responsible and cost-effective. The present invention also describes a manufacturing process of the titanium-based bimetallic heterogeneous catalyst with enhanced selectivity, activity, and stability, among other advantages. 1. A titanium-based bimetallic heterogeneous catalyst comprising a support of titanium dioxide doped with cobalt cations and transition metal nanoparticles impregnated in the support.2. The titanium-based bimetallic heterogeneous catalyst according to claim 1 , wherein the cobalt cations are cobalt (III).3. The titanium-based bimetallic heterogeneous catalyst according to claim 1 , wherein the cobalt cations are absorbed into the surface of the support of titanium dioxide.4. The titanium-based bimetallic heterogeneous catalyst according to claim 1 , wherein the transition metal nanoparticles are selected from gold (Au) nanoparticles claim 1 , cobalt (Co) nanoparticles or a mixture thereof.5. The titanium-based bimetallic heterogeneous catalyst according to claim 4 , wherein the transition metal nanoparticles are a mixture of gold and cobalt nanoparticles claim 4 , which forms a nanoalloy (Au—Co) in the surface of the titanium dioxide support.6. The titanium-based bimetallic heterogeneous catalyst according to claim 1 , wherein the transition metal nanoparticles are from approximately 0.8 to 1.2% of the total weight of the titanium-based bimetallic heterogeneous catalyst.7. The titanium-based bimetallic heterogeneous catalyst according to claim 6 , wherein the transition metal nanoparticles are approximately 1.0% of the total weight of the titanium-based bimetallic heterogeneous catalyst.8. The titanium-based ...

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Номер записи: 58
24-02-2022 дата публикации

CATALYST FOR REDUCING AMMONIA EMISSIONS

Номер: US20220055019A1
Автор: COLOMBO Massimo, Seyler Michael
Принадлежит: UMICORE AG & CO. KG

The present invention relates to a catalyst comprising a carrier substrate of length L, coating A arranged as the first layer on the carrier and containing platinum on a metal oxide, and coating B applied as the second layer to coating A and containing a Cu-exchanged molecular sieve and no noble metal, wherein the total washcoat quantity of coating A is 40 g/l or more of washcoat in relation to the coated catalyst volume. 1. Catalyst comprisinga carrier substrate of length L extending between an end X and an end Y,coating A arranged as a first layer on the carrier and containing platinum on a metal oxide α and a metal oxide β that does not carry a noble metal, andcoating B applied as a second layer to coating A and containing a Cu-exchanged molecular sieve and no noble metal,wherein the total washcoat quantity of coating A is 40 g/l or more of washcoat in relation to the coated catalyst volume.2. Catalyst according to claim 1 , characterized in that the total washcoat quantity of coating A is 50 g/l or more of washcoat in relation to the coated catalyst volume.3. Catalyst according to claim 1 , characterized in that the total washcoat quantity of coating A is 75 g/l or less of washcoat in relation to the coated catalyst volume.4. Catalyst according claim 1 , characterized in that the total washcoat quantity for coating A is 40 g/l to 75 g/l claim 1 , more particularly preferably 50 g/l to 75 g/l claim 1 , in relation to the coated catalyst volume.5. Catalyst according to claim 1 , characterized in that the carrier substrate is a flowthrough substrate.6. Catalyst according to claim 1 , characterized in that metal oxide α and metal oxide β are different.7. Catalyst according to claim 1 , characterized in that metal oxide α is titanium oxide.8. Catalyst according to claim 1 , characterized in that metal oxide β is aluminum oxide.9. Catalyst according to claim 1 , characterized in that metal oxide α is titanium oxide and metal oxide R is aluminum oxide.10. Catalyst ...

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Номер записи: 59
07-02-2019 дата публикации

AGGLOMERATED ODH CATALYST

Номер: US20190039053A1
Автор: Anseeuw Renee Laurel, Barnes Marie Annette, Gao Xiaoliang, Kim Yoonhee, Simanzhenkov Vasily, Styles Yipei, Sullivan David
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports chosen from slurries of TiO, ZrOAlO, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained. 1. An agglomerated catalyst comprising:from 10 to 95 weight % of a catalyst of the formula:{'sub': 1.0', '0.12-0.49', '0.6-0.16', '0.15-0.20', 'd', '2', '2', '2', '3', '2, 'MoVTeNbOwherein d is a number to satisfy the valence of the oxide; and from 5-90 weight % of a binder chosen from acidic, basic or neutral binder slurries of TiO, ZrOAlO, AlO(OH) and mixtures thereof provided that ZrOis not used in combination with an aluminum containing binder.'}2. The agglomerated catalyst according to claim 1 , having a cumulative surface area less than 35 m/g as measured by BET.3. The agglomerated catalyst according to claim 2 , having a cumulative pore volume from 0.05 to 0.50 cm/g.4. The agglomerated catalyst according to claim 2 , having a pore size distribution less than 4% having pore width size less than 150 Angstroms.5. The agglomerated catalyst according to claim 2 , having a percent pore area distribution less than 40% and corresponding percentage of pore volume less than 20%.6. The agglomerated catalyst according to in the shape of a sphere claim 2 , rod claim 2 , ring claim 2 , or a saddle having a size from about 1.3 mm to 5 mm.7. The agglomerated catalyst according to claim 6 , wherein the binder is an acidified binder.8. The agglomerated catalyst according to claim 6 , wherein the binder is a base treated binder.9. The agglomerated catalyst according to claim 7 , in the shape of rods having an aspect ratio from 1 to 5/1.3 having a crush strength up to 100 N/mm.10. The agglomerated catalyst according to claim 8 , in the shape of rods having an aspect ratio from 1 to 5/1.3 having a crush strength up to 100 N/mm.11. The agglomerated catalyst according to claim 7 , in ...

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Номер записи: 60
06-02-2020 дата публикации

PHOTOCATALYTIC CARBON FILTER

Номер: US20200038840A1
Автор: Chae Soryong, Noeiaghaei Tahereh, OH Yoontaek
Принадлежит:

Provided herein are photocatalytic carbon filters for the removal impurities such as microorganisms, organic compounds, algal toxins, and their degradation by-products from water and wastewater. The photolytic carbon filters comprise a porous titanium substrate comprising TiOnanotube arrays and multi-wall carbon nanotubes disposed on the TiOnanotube arrays. Also provided herein are methods of manufacture and methods of use of the disclosed photocatalytic carbon filters. 1. A photocatalytic carbon filter comprising:{'sub': '2', 'a porous titanium substrate comprising TiOnanotube arrays; and'}multi-wall carbon nanotubes disposed on the porous titanium substrate.2. The photocatalytic carbon filter of claim 1 , wherein the porous titanium substrate comprises pores having a diameter of from about 0.2 to about 2.5 μm.3. The photocatalytic carbon filter of claim 1 , further comprising hydrophilic functional groups bound to at least one of the porous titanium substrate or multi-wall carbon nanotubes.4. The photocatalytic carbon filter of claim 3 , wherein the hydrophilic functional groups are selected from the group consisting of hydroxyl groups claim 3 , carboxylic groups claim 3 , and combinations thereof.5. A method of making a photocatalytic carbon filter comprising:{'sub': '2', 'forming TiOnanotube arrays from a titanium substrate by anodic oxidation; and'}{'sub': '2', 'growing multi-wall carbon nanotubes on the TiOnanotube arrays by thermal chemical vapor deposition.'}8. The method of claim 7 , wherein the catalyst is ferrocene.9. The method of claim 7 , wherein the temperature of the first zone is increased to about 250° C. at a rate of 3° C./min.10. The method of claim 7 , wherein the temperature of the second zone is increased to about 770° C. at a rate of 10° C./min.11. The method of claim 10 , wherein the dual-zone reactor comprises a quartz cylinder having an inner diameter of from about 4.5 cm to about 10 cm and a length of about 150 cm.12. The method of claim ...

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Номер записи: 61
18-02-2021 дата публикации

CABIN FILTER CLEANING SYSTEMS AND METHODS FOR A VEHICLE

Номер: US20210046411A1
Автор: LÖFVENDAHL Anders
Принадлежит:

Systems and methods that utilize both UVA and UVC lamps to clean and disinfect a cabin filter of a vehicle, thereby preventing the cabin filter from becoming fouled for an extended period of time. By performing both gas filtration and cabin filter disinfection functions, these systems and methods mitigate: (1) the pressure drop (or flow reduction) experienced; (2) the smell breakthrough when the gas adsorbent becomes saturated; and (3) the presence of microbial growth. This is accomplished by the sequential application of UVC and UVA radiation to the cabin filter, with the UVC radiation being applied for a period of time upon vehicle startup to neutralize bacteria and fungus present in the cabin filter and the UVA radiation subsequently being applied continuously to filter the gas flowing through the cabin filter. A photocatalyst may be added to the cabin filter itself to enhance disinfection and gas filtration. 1. A cabin filter cleaning system for a vehicle , comprising:a filter box adapted to be fluidly coupled to an air inlet and an air outlet and contain a cabin filter;an ultraviolet-C (UVC) lamp coupled to or disposed within or adjacent to the filter box and adapted to deliver UVC radiation to an interior portion of the filter box and the cabin filter, thereby disinfecting the cabin filter; andan ultraviolet-A (UVA) lamp coupled to or disposed within or adjacent to the filter box and adapted to deliver UVA radiation to the interior portion of the filter box and the cabin filter, thereby gas filtering an air flow through the cabin filter.2. The cabin filter cleaning system of claim 1 , wherein the filter box is adapted to be disposed within one of an engine compartment and a passenger compartment of the vehicle.3. The cabin filter cleaning system of claim 1 , where the air inlet includes an air intake and air intake flaps.4. The cabin filter cleaning system of claim 1 , where the air outlet includes an evaporator and a blower.5. The cabin filter cleaning system ...

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Номер записи: 62
18-02-2016 дата публикации

CuO - TiO2 NANOCOMPOSITE PHOTOCATALYST FOR HYDROGEN PRODUCTION, PROCESS FOR THE PREPARATION THEREOF

Номер: US20160045908A1
Автор: Kumar Dharani Praveen, Kumari Murikinati Mamatha, Kumari Valluri Durga, Sadanandam Gullapelli, Shankar Muthukonda Venkatakrish Nan, Srinivas Basavaraju, Subrahmanyam Machiraju, Sundar Bethanabhatla Syama
Принадлежит:

The present investigation is development of the TiOnanotubes concept of preparation of and their composite with fine dispersion of copper. The inventions also relates to identify a method for optimum amount of photocatalyst required for efficient and maximum hydrogen production reported than earlier (H=99,823 μmol·h·gcatalyst) from glycerol-water mixtures under solar light irradiation. A method is disclosed to produce CuO/TiOnanotubes with high sustainability and recyclable activity for hydrogen production. 1. CuO—TiOnanocomposite photocatalyst which comprises of TiOnanotubes in the range of 98-99.9 wt % and CuO in the range of 0.1 to 2 wt %.2. CuO—TiOnanocomposite photocatalyst as claimed in claim 1 , wherein TiOnanotube composed of bicrystalline anatase-rutile phase with tube length 300 to 400 nm and diameter 8-12 nm.3. CuO—TiOnanocomposite photocatalyst as claimed in claim 1 , wherein CuO is deposited on TiOnanotubes surface in the form of quantum dots.4. CuO—TiOnanocomposite photocatalyst as claimed in claim 3 , wherein size of CuO quantum dots is less than 10 nm.5. A method for the preparation of CuO—TiOnanocomposite photocatalyst as claimed in claim 1 , wherein the said process comprising the steps of;{'sub': '2', 'a) dispersing TiOμm-sized particles (TMP) into NaOH aqueous solution under magnetic stirring at temperature ranging between 25 to 35° C. for a period ranging between 0.5 to 2 h to obtain homogeneous suspension;'}{'sub': 2', '2', '2, 'b) heating homogeneous suspension as obtained in step (a) into an autoclave for a period ranging between 6 to 72 h at temperature ranging between 120 to 150° C. to obtain precipitate of TiOnanotube followed by washing with water, dilute HCl and ethanol in steps subsequently drying the precipitate at temperature ranging between 60 to 100° C. for a period ranging between 8 to 24 h then calcining TiOnanotube at temperature ranging between 300 to 400° C. for a period ranging 2 to 7 h to obtain calcined TiOnanotube;'}{'sub': ...

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Номер записи: 63
16-02-2017 дата публикации

Ni-Pt-ZrO2 NANOCRYSTALLINE OXIDE CATALYST AND PROCESS THEREOF USEFUL FOR THE PRODUCTION OF SYNGAS BY COMBINING OXY- DRY REFORMING OF NATURAL GAS

Номер: US20170043324A1
Автор: Bal Rajaram, Bordoloi Ankur, Goyal Reena, Konathala Laxmi Narayan Sivakumar, Pendem Chandrashekar, Sarkar Bipul
Принадлежит:

The present invention provides a process and catalyst for the autothermal and dry reforming of methane to produce syngas. The process provides a direct single step gas phase reforming of methane or natural gas to syngas over Ni—Pt supported nanocrystalline ZrO. The process provides methane conversion of 54-99% with H/CO ratio of 1.14 to 1.42 (mol %) in the temperature range of 250 to 750 800° C. at atmospheric pressure. 1. Ni—Pt—ZrOnanocrystalline oxide catalyst , wherein Ni is in the range of 2-10 wt % , Pt is in the range of 0.5 to 4 wt % and ZrOin the range of 97.5 to 86 wt % having particle size in the range of 30-80 nm.2. Ni—Pt—ZrOnanocrystalline oxide catalyst as claimed in claim 1 , wherein said catalyst is useful for partial oxidation and dry reforming of methane for the production of syngas via gas phase reforming of methane or natural gas.3. Ni—Pt—ZrOnanocrystalline oxide catalyst as claimed in claim 1 , having following characteristics:{'sup': '2', 'BET surface area: 85 m/g;'}particle size of the catalyst ranges between 30-60 nm;Catalyst runs for 100 hrs without deactivation.4. A process for the preparation of Ni—Pt—ZrOnanocrystalline oxide catalyst as claimed in claim 1 , wherein the said process comprising the steps of:{'sub': 2', '2', '2', '4, 'i. dissolving 0.025 to 0.0372 mol of ZrOClin 2.78 to 5.56 mol of water, wherein the mole ratio of ZrOCl:HO ranges between 180 400 in the solution with the pH in the range of 3-10 using NHOH solution;'}transferring the mixture of step i) to a stainless steel autoclave and heating at a temperature in the range of 50 to 70° C. for a period in the range of 1 to 2 hrs to obtain white precipitate;filtering, washing and drying the white precipitate as obtained in step ii) at a temperature in the range of 100 to 130° C. for period in the range of 10 to 18 hrs;{'sub': '2', 'iv. calcining the materials as obtained in step iii) at a temperature in the range of 300 to 800° C. for period in the range of 4 to 6 hrs in air to ...

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Номер записи: 64
03-03-2022 дата публикации

A PREPARATION METHOD OF A NANOMETER METAL OXIDE SUPPORTED CARRIER BASED ON ANODIC OXIDATION

Номер: US20220062863A1
Автор: FENG Daolun, LIN Yue, QIAN Qun
Принадлежит: Shanghai Maritime University

Disclosed is a preparation method of a nanometer metal oxide supported carrier based on anodic oxidation, comprising: Step 1: adding electrolyte to a reaction pool, and fixing the cathode and the anode oppositely, wherein the cathode is a metal plate that is identical to the nano-metal oxide, and the anode is a carrier metal material; Step 2: stirring the electrolyte at a constant speed, wherein the revolution speed is not lower than 500 rpm; Step 3: switching power on; setting the output voltage between 10v and 50v; and subjecting the metal plate of the anode to anodic oxidation reaction, wherein metal oxide nanotubes/nano particles are generated on the surface; under the action of stirring, the metal oxide nanotubes/nano particles on the anode surface are dissolved and shed off into the electrolyte; under the action of the electric field force, the dissolved and shed-off nano fragments migrate towards the cathode and are adhered to the surface of the cathode material, thereby forming a nano-metal oxide film. The film preparation method according to the disclosure offers advantages such as mild condition, simple instrumentation, easy operation, and low cost; the prepared film has a good load effect such that the metal oxide can hardly be shed off.

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Номер записи: 65
14-02-2019 дата публикации

BARRIERS FOR GLASS AND OTHER MATERIALS

Номер: US20190046561A1
Автор: Perricone Nicholas V.
Принадлежит: Perricone Hydrogen Water Company, LLC

Embodiments described herein generally relate to articles and methods for containing compositions comprising hydrogen gas. In some embodiments, the article comprises a container that comprises glass. In some cases, the container may further comprise TiO, which may be embedded within the glass, coated on the glass, etc. The container further may contain a composition within the container. In some cases, the composition may comprise dissolved hydrogen gas. Such compositions may be useful, for example, for the treatment of animal and human diseases, for improvement in athletic performance, for the enhancement of the overall health of a subject, or the like. 1. A sealed container , comprising:glass;{'sub': '2', 'TiOin an amount of at least 10 mass % of the container when empty; and'}{'sub': '2', 'an aqueous composition contained within the sealed container, wherein the composition comprises dissolved Hat a concentration of at least 3 ppm, and wherein the pressure of the container is at least 1 psi greater than atmospheric pressure.'}28-. (canceled)9. The container according to claim 1 , wherein the container further comprises metal.10. The container according to claim 1 , wherein the TiOis configured to catalyze hydrolysis of water within the container.11. The container according to claim 10 , wherein the hydrolysis occurs through photocatalysis.1219-. (canceled)20. The container according to claim 1 , wherein the glass is tinted.21. The container according to claim 1 , wherein at least some of the TiOcoats a surface of the glass.22. The container according to claim 1 , wherein at least some of the TiOis embedded in the glass.2362-. (canceled) The present invention generally relates to articles of and methods for containing compositions comprising hydrogen gas.Hydrogen gas (H) has been shown to have positive effects on animal and human physiology and disease states. Hcan be administered to a subject in the form of, for example, a gas, an infusion, a topical solution, or ...

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Номер записи: 66
14-02-2019 дата публикации

CATALYSTS FOR CONVERSION OF 2,3-BUTANEDIOL-CONTAINING FERMENTATION MIXTURE TO HYDROCARBONS

Номер: US20190046967A1
Автор: Li Zhenglong
Принадлежит:

A method for producing one or more hydrocarbon compounds from at least one of 2,3-butanediol, acetoin, and ethanol, the method comprising contacting said at least one of 2,3-butanediol, acetoin, and ethanol with a catalyst at a temperature of at least 100° C. and up to 500° C. to result in said 2,3-butanediol, acetoin, and/or ethanol being converted to said one or more hydrocarbon compounds, wherein said catalyst is either: (i) a catalyst comprising nanoparticles composed of (a) a first metal oxide selected from the group consisting of zirconium oxide, cerium oxide, titanium oxide, and lanthanum oxide, and (b) a main group metal oxide; or (ii) a catalyst comprising a zeolite loaded with at least one metal selected from the group consisting of copper, silver, nickel, palladium, platinum, rhodium, and ruthenium in an amount of 1-30 wt % by weight of the zeolite. 1. A method for producing one or more hydrocarbon compounds from at least one of 2 ,3-butanediol , acetoin , and ethanol , the method comprising contacting said at least one of 2 ,3-butanediol , acetoin , and ethanol with a catalyst at a temperature of at least 100° C. and up to 500° C. to result in said 2 ,3-butanediol , acetoin , and/or ethanol being converted to said one or more hydrocarbon compounds , wherein said catalyst is either:(i) a catalyst comprising nanoparticles composed of (a) a first metal oxide selected from the group consisting of zirconium oxide, cerium oxide, titanium oxide, and lanthanum oxide, and (b) a main group metal oxide; or(ii) a catalyst comprising a zeolite loaded with at least one metal selected from the group consisting of copper, silver, nickel, palladium, platinum, rhodium, and ruthenium in an amount of 1-30 wt % by weight of the zeolite.2. The method of claim 1 , wherein said at least one of 2 claim 1 ,3-butanediol claim 1 , acetoin claim 1 , and ethanol is in aqueous solution claim 1 , and said catalyst is contacted with said aqueous solution at said temperature.3. The ...

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Номер записи: 67
14-02-2019 дата публикации

PHOTO-THERMAL REACTIONS OF ALCOHOLS TO HYDROGEN AND ORGANIC PRODUCTS OVER METAL OXIDE PHOTO-THERMAL CATALYSTS

Номер: US20190047856A1
Автор: IDRISS Hicham, NADEEM Muhammad Amtiaz
Принадлежит:

Photo-thermal catalysts and methods of use are described. The photo-thermal catalyst can include a photo-active metal oxide and, optionally, a plasmon resonance material. The photo-thermal catalyst has a temperature of 150° C. to 400° C. and is in contact with electromagnetic radiation. The photo-thermal catalyst can be used in a photo-thermal method to generate hydrogen from alcohols. 1. A photo-thermal method for producing hydrogen (H) and an organic product from alcohol , the method comprising irradiating a thermally-heated metal oxide photocatalyst that includes alcohol adsorbed on the surface of the photocatalyst with electromagnetic radiation to produce Hand the organic product from the alcohol , wherein the thermally-heated metal oxide photocatalyst has a temperature of 150° C. to 400° C.2. The photo-thermal method of claim 1 , wherein the alcohol is Calcohol and hydrogen and the organic product are formed by dehydrogenation of the alcohol.3. The photo-thermal method of claim 1 , wherein the thermally-heated metal oxide photocatalyst has a temperature of 250° C. to 400° C.4. The photo-thermal method of claim 1 , wherein the metal oxide photocatalyst comprises titanium dioxide (TiO) claim 1 , cerium dioxide (CeO) claim 1 , zinc oxide (ZnO) claim 1 , or vanadium oxide (VO) or any combination thereof.5. The photo-thermal method of claim 4 , wherein the metal oxide is titanium dioxide (TiO).6. The photo-thermal method of claim 1 , wherein the metal oxide is cerium dioxide (CeO).7. The photo-thermal method of claim 1 , wherein the metal oxide photocatalyst comprises a plasmon resonance active metal dispersed on the thermally-heated metal oxide photocatalyst.8. The photo-thermal method of claim 7 , wherein the plasmon resonance active metal is silver (Ag) claim 7 , gold (Au) claim 7 , Copper (Cu) claim 7 , or any combinations thereof or alloys thereof.9. The photo-thermal method of claim 7 , wherein the thermally-heated metal oxide photocatalyst comprises 0.1 to 10 ...

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Номер записи: 68
25-02-2021 дата публикации

PHOTOCATALYST TRANSFER FILM AND PRODUCTION METHOD THEREOF

Номер: US20210053029A1
Автор: FURUDATE Manabu, INOUE Tomohiro, YUYAMA Masahiro
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

Provided are a photocatalyst transfer film allowing a photocatalyst layer that is uniform, highly transparent, and exhibits an antimicrobial property in dark places to be transferred to the surfaces of various transfer base materials; and a production method thereof. The photocatalyst transfer film has, on a base film, a photocatalyst layer containing a titanium oxide particle-containing photocatalyst, antimicrobial metal-containing alloy particles, a silicon compound and a surfactant. The production method of the photocatalyst transfer film includes applying a photocatalyst coating liquid to a base film; and performing drying. The photocatalyst coating liquid contains a titanium oxide particle-containing photocatalyst, antimicrobial metal-containing alloy particles, a silicon compound, a surfactant and an aqueous dispersion medium. 1. A photocatalyst transfer film having , on a base film , a photocatalyst layer containing a titanium oxide particle-containing photocatalyst , antimicrobial metal-containing alloy particles , a silicon compound and a surfactant.2. The photocatalyst transfer film according to claim 1 , wherein the silicon compound is a hydrolysis condensate of a tetrafunctional silicon compound claim 1 , the hydrolysis condensate being obtained under the presence of an organic ammonium salt.3. The photocatalyst transfer film according to claim 1 , wherein the surfactant is an acetylene-based surfactant.4. The photocatalyst transfer film according to claim 1 , wherein an antimicrobial metal(s) contained in the antimicrobial metal-containing alloy particles is at least one kind of metal selected from the group consisting of silver claim 1 , copper and zinc.5. The photocatalyst transfer film according to claim 1 , wherein the antimicrobial metal-containing alloy particles at least contain silver.6. The photocatalyst transfer film according to claim 1 , wherein the antimicrobial metal(s) contained in the antimicrobial metal-containing alloy particles is in ...

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Номер записи: 69
13-02-2020 дата публикации

PROCESS FOR METHANOL SYNTHESIS USING AN INDIUM OXIDE BASED CATALYST

Номер: US20200048173A1
Автор: CURULLA-FERRE Daniel, DROUILLY Charlotte, MARTIN Oliver, MARTIN-FERNANDEZ Antonio J., MONDELLI Cecilia, Perez-Ramirez Javier
Принадлежит:

The invention relates to a process for methanol synthesis comprising the steps of providing a syngas feed stream comprising hydrogen and a mixture of carbon dioxide and carbon monoxide, wherein carbon dioxide represents from 1 to 50 mol % of the total molar content of the feed stream, carbon monoxide is contained from 0.1 to 85 mol % of the total molar content, and His comprised from 5 to 95 mol % of the total molar content of the feed stream; providing an indium oxide catalyst selected from a bulk catalyst and a supported catalyst comprising indium oxide (InO) as the main active phase; putting in contact said stream with said catalyst at a reaction temperature of at least 373 K (99.85° C.) and under a pressure ranging of at least 1 MPa; and recovering the methanol effluents. The invention also relates to an indium oxide based catalyst. 1. A process for methanol synthesis comprising:{'sub': '2', 'providing a syngas feed stream comprising hydrogen and a mixture of carbon dioxide and carbon monoxide, wherein carbon dioxide represents from 1 to 50 mol % of the total molar content of the feed stream, carbon monoxide is contained from 0.1 to 85 mol % of the total molar content of the feed stream, and His comprised from 5 to 95 mol % of the total molar content of the feed stream;'}{'sub': 2', '3, 'providing an indium oxide catalyst selected from the group consisting of a bulk catalyst consisting in indium oxide and a catalyst comprising indium oxide (InO) deposited on a support;'}putting in contact said stream with said catalyst at a reaction temperature of at least 373 K (99.85° C.) and under a pressure of at least 1 MPa; andrecovering the methanol effluents.2. The process according to wherein the reaction temperature is at least 463 K (189.85° C.).3. The process according to claim 1 , wherein the pressure is at least 2 MPa.4. The process according to claim 1 , wherein the molar ratio of carbon monoxide to carbon dioxide in the syngas feed stream is at least 1:10.5. The ...

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Номер записи: 70
13-02-2020 дата публикации

Method for preparing 5-(4-bromophenyl)-4,6-dichloropyrimidine

Номер: US20200048206A1
Автор: Feifei Gao, Junlong Gao, Minliang Zhu, Wei Lu, Yi Liu
Принадлежит: Zhejiang Xianfeng Technologies Co ltd

A method for preparing 5-(4-bromophenyl)-4,6-dichloropyrimidine is provided. The method comprises the steps of: preparing methyl p-bromophenylacetate (Intermediate I) by catalytic esterification of p-bromophenylacetic acid, and then reacting with dimethyl carbonate to synthesize 2-(4-bromophenyl)-malonic acid-1,3-dimethyl ester (Intermediate 2), cyclizing with formamidine hydrochloride to obtain 5-(4-bromophenyl)-4,6-dihydroxypyrimidine (Intermediate 3), and then chlorinating to give the product 5-(4-bromophenyl)-4,6-dichloropyrimidine. In the process of preparing Intermediate 1 in the present invention, a solid acid is used as a catalyst. Moreover, in the process of preparing Intermediate 2, sodium methoxide is used as a base in place of sodium hydride or sodium amide used in the prior art. Furthermore, Intermediate 3 is prepared by a one-pot process.

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Номер записи: 71
26-02-2015 дата публикации

CATALYSTS

Номер: US20150057378A1
Автор: Allers Tanja, Borninkhof Frederik, Meyer Rita, Taljaard Jana Heloise, Van Laar Frederik Marie Paul Rafael, Visagie Jacobus Lucas
Принадлежит: SASOL TECHNOLOGY (PROPRIETARY) LIMITED

A method of preparing a modified catalyst support comprises contacting a catalyst support material with a modifying component precursor in an impregnating liquid medium. The impregnating liquid medium comprises a mixture of water and an organic liquid solvent for the modifying component precursor. The mixture contains less than 17% by volume water based on the total volume of the impregnating liquid medium. The modifying component precursor comprises a compound of a modifying component selected from the group consisting of Si, Zr, Co, Ti, Cu, Zn, Mn, Ba, Ni, Al, Fe, V, Hf, Th, Ce, Ta, W, La and mixtures of two or more thereof. A modifying component containing catalyst support material is thus obtained. Optionally, the modifying component containing catalyst support material is calcined at a temperature above 100° C. to obtain a modified catalyst support. 1. A method of preparing a modified catalyst support , the method comprisingcontacting a catalyst support material with a modifying component precursor in an impregnating liquid medium wherein the impregnating liquid medium comprises a mixture of water and an organic liquid solvent for the modifying component precursor, which mixture contains less than 12% by volume water based on the total volume of the impregnating liquid medium, and the modifying component precursor comprises a compound of a modifying component selected from the group consisting of Si, Zr, Co, Ti, Cu, Zn, Mn, Ba, Ni, Al, Fe, V, Hf, Th, Ce, Ta, W, La and mixtures of two or more thereof, thereby to obtain a modifying component containing catalyst support material; andoptionally, calcining the modifying component containing catalyst support material at a temperature above 100° C. to obtain a modified catalyst support.2. A method of preparing a catalyst precursor , the method comprisingcontacting a catalyst support material with a modifying component precursor in an impregnating liquid medium wherein the impregnating liquid medium comprises a mixture ...

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Номер записи: 72
10-03-2022 дата публикации

METHOD FOR MANUFACTURING RUTHENIUM OXIDE-SUPPORTED CATALYST FOR PREPARING CHLORINE AND CATALYST MANUFACTURED THEREBY

Номер: US20220072513A1
Автор: Cho Young Jin, CHUN Jeong Hwan, KIM Wong Yong, LEE Ga Ram, WOO Eun Ji
Принадлежит:

The present invention relates to a method for manufacturing a ruthenium oxide-supported catalyst for preparing chlorine, and more particularly, to a method for manufacturing a catalyst and a catalyst manufactured thereby, wherein the catalyst includes a ruthenium ingredient of which a support level on an outer surface of a support is significantly improved, and the use of the catalyst in preparing chlorine can provide a high conversion rate of chlorine even at a low reaction temperature. According to an embodiment of the present invention, the method for manufacturing a ruthenium oxide-supported catalyst for preparing chlorine may include the steps of: (a) dissolving a ruthenium compound in an organic solvent to prepare a solution and supporting the same on at least one support selected from titania and alumina; (b) performing drying thereon after the supporting; and (c) performing calcining thereon after the drying. According to an embodiment of the present invention, in particular, it is possible to provide a simplified process by manufacturing a catalyst including ruthenium oxide only at each outer surface layer of a titania support without alkali pretreatment, thereby exhibiting an advantageous effect in terms of scale-up. 1. A method for manufacturing a ruthenium oxide-supported catalyst for preparing chlorine , the method comprising the steps of:(a) dissolving a ruthenium compound in an organic solvent to prepare a solution and supporting the same on at least one support selected from titania and alumina;(b) performing drying thereon after the supporting; and(c) performing calcining thereon after the drying.2. The method of claim 1 , wherein the organic solvent in the step (a) is monoalcohol.3. The method of claim 2 , wherein the monoalcohol is a primary alcohol of C3 or higher.4. The method of claim 1 , wherein the titanium support in the step (a) has a specific surface area of 5-300 m/g.5. The method of claim 1 , wherein the drying in the step (b) is ...

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Номер записи: 73
02-03-2017 дата публикации

DEVICE, SYSTEM, AND METHOD FOR PRODUCING ADVANCED OXIDATION PRODUCTS

Номер: US20170056856A1
Автор: ELLIS Walter B., FINK Ronald G.
Принадлежит: RGF Environmental Group, Inc.

The present invention relates generally to an advanced oxidation process for providing advanced oxidation products to an environment. More particularly, the present invention provides a wick structure and hydrophilic granules for use in an advanced oxidation process, and methods of making the same. The wick structure and hydrophilic granules may be configured to collect and concentrate water vapor, so that the water vapor may subsequently be used to generate advanced oxidation products that react with and neutralize compounds in an environment, including microbes, odor causing chemicals, and other organic and inorganic chemicals. 116-. (canceled)17. Hydrophilic granules configured for use in an advanced oxidation process ,wherein the granules comprise a base material,wherein the base material is porous and comprises a hydrophilic material, a catalytic material, and a ceramic matrix,wherein the catalytic material comprises titanium dioxide, wherein at least a portion of the titanium dioxide is in anatase crystal form, andwherein the hydrophilic material is formulated to absorb and release water.18. The hydrophilic granules of claim 17 , wherein the ceramic matrix comprises cerium oxide and aluminum oxide claim 17 ,19. The hydrophilic granules of claim 17 , wherein the hydrophilic material comprises magnesium carbonate.20. The hydrophilic granules of claim 17 , wherein greater than 99% of the titanium dioxide is in anatase crystal form.21. The hydrophilic granules of claim 17 , wherein the base material further comprises one or more additional catalytic materials.22. The hydrophilic granules of claim 21 , wherein the one or more additional catalytic materials are selected from the group consisting of rhodium claim 21 , silver claim 21 , copper claim 21 , zinc claim 21 , platinum claim 21 , nickel claim 21 , erbium claim 21 , yttrium claim 21 , fluorine claim 21 , sodium claim 21 , ytterbium claim 21 , boron claim 21 , nitrogen claim 21 , phosphorus claim 21 , oxygen ...

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Номер записи: 74
02-03-2017 дата публикации

DEVICE, SYSTEM, AND METHOD FOR PRODUCING ADVANCED OXIDATION PRODUCTS

Номер: US20170056857A1
Автор: ELLIS Walter B., FINK Ronald G.
Принадлежит: RGF Environmental Group, Inc.

The present invention relates generally to an advanced oxidation process for providing advanced oxidation products to an environment. More particularly, the present invention provides a wick structure and hydrophilic granules for use in an advanced oxidation process, and methods of making the same. The wick structure and hydrophilic granules may be configured to collect and concentrate water vapor, so that the water vapor may subsequently be used to generate advanced oxidation products that react with and neutralize compounds in an environment, including microbes, odor causing chemicals, and other organic and inorganic chemicals. 127-. (canceled)28. A method of preparing a hydrophilic base material , the method comprising:providing, in a reaction chamber, a reaction mixture comprising hydrophilic material precursors, catalytic material precursors, and ceramic matrix precursors, and a solvent, wherein the atmosphere in the reaction chamber is pure carbon dioxide gas at a specified temperature and pressure;mixing the reaction mixture, while maintaining the temperature and the pressure of the reaction chamber, for a predetermined period of time to form a slurry;optionally adding at least one of aluminum (Ill) oxide and silicon dioxide to the slurry,optionally adding one or more catalytic reaction enhancers to the slurry;solidifying the slurry to form a congealed mass; anddrying the congealed mass to form a solid material.29. The method of preparing a hydrophilic base material of claim 28 , wherein the reaction mixture further comprises one or more catalytic enhancers.30. The method of preparing a hydrophilic base material of claim 28 , wherein the hydrophilic material precursors comprise magnesium oxide.31. The method of preparing a hydrophilic base material of claim 28 , wherein the catalytic material precursors comprise titanium tetraisopropoxide.32. The method of preparing a hydrophilic base material of claim 28 , wherein the ceramic matrix precursors comprise ...

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Номер записи: 75
02-03-2017 дата публикации

FILM SYSTEM AND METHOD OF FORMING SAME

Номер: US20170056871A1
Автор: Carpenter James A., Dadheech Gayatri V., Seder Thomas A.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A film system includes a substrate and a film disposed on the substrate. The film includes a monolayer formed from a fluorocarbon and a plurality of regions disposed within the monolayer such that each of the plurality of regions abuts and is surrounded by the fluorocarbon. Each of the plurality of regions includes a photocatalytic material. A method of forming a film system includes depositing a monolayer formed from a fluorocarbon onto a substrate. After depositing, the method includes ablating the monolayer to define a plurality of cavities therein, wherein each of the plurality of cavities is spaced apart from an adjacent one of the plurality of cavities along the monolayer. After ablating, the method includes embedding a photocatalytic material into each of the plurality of cavities to form a film on the substrate and thereby form the film system. 1. A film system comprising:a substrate; and a monolayer formed from a fluorocarbon; and', 'a plurality of regions disposed within the monolayer such that each of the plurality of regions abuts and is surrounded by the fluorocarbon, wherein each of the plurality of regions includes a photocatalytic material., 'a film disposed on the substrate and including2. The film system of claim 1 , wherein the film has a first surface and a second surface spaced opposite the first surface and abutting the substrate claim 1 , and further wherein the first surface is substantially free from squalene.3. The film system of claim 2 , wherein the plurality of regions are equally spaced apart from each other along the first surface.4. The film system of claim 2 , wherein the substrate has:a proximal surface abutting the second surface;a distal surface spaced opposite the proximal surface;a first edge connecting the proximal surface and the distal surface; anda second edge spaced opposite the first edge; andfurther including a light source disposed adjacent the first edge and configured for emitting electromagnetic radiation.5. The film ...

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Номер записи: 76
02-03-2017 дата публикации

METAL OXIDE NANOFIBROUS MATERIALS FOR PHOTODEGRADATION OF ENVIRONMENTAL TOXINS

Номер: US20170056873A1
Автор: BERNIER WILLIAM E., DeCoste Jared, Jones Wayne E., Liu Jian, McCarthy Danielle, Obuya Emilly, Tollin Julia B.
Принадлежит:

Mixed-phase TiOnanofibers prepared via a sol-gel technique followed by electrospinning and calcination are provided as photocatalysts. The calcination temperature is adjusted to control the rutile phase fraction in TiOnanofibers relative to the anatase phase. Post-calcined TiOnanofibers composed of 38 wt % rutile and 62 wt % anatase exhibited the highest initial rate constant of UV photocatalysis. This can be attributed to the combined influences of the fibers' specific surface areas and their phase compositions. 1. A metal oxide crystalline nanofiber material comprising:titanium dioxide comprising a rutile phase and an anatase phase, calcined from precursor molecules,wherein photoexcitation of chemically-reactive electron-hole pairs in the metal oxide crystalline nanofiber material in proximity to susceptible molecules results in formation of reactive radical species from both the conduction band and the valence band.2. The metal oxide nanofiber according to claim 1 , wherein a ratio of the rutile phase to the anatase phase is at least 3:97.3. The metal oxide nanofiber according to claim 1 , formed by a process of electrospinning.4. The metal oxide nanofiber according to claim 1 , further comprising at least one of a catalytic metal and graphene.5. The metal oxide nanofiber according to claim 1 , further comprising a metal-organic framework (MOF).6. The metal oxide nanofiber according to claim 1 , further comprising a Poly(3 claim 1 ,4-ethylenedioxythiophene) (PEDOT) surface film.7. The metal oxide nanofiber according to claim 1 , further comprising a dye which interacts with light to at least one of:elevate an electron in the titanium dioxide into a conduction band; andproduce a hole by transferring an electron in the titanium dioxide to the valence band.8. The metal oxide nanofiber according to claim 1 , further comprising a dopant in the titanium oxide adapted to induce semiconductivity.9. The metal oxide nanofiber according to claim 1 , wherein:the rutile phase ...

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Номер записи: 77
20-02-2020 дата публикации

CARBON NITRIDE-BASED PHOTOCATALYST AND PREPARATION METHOD THEREOF

Номер: US20200055036A1
Автор: HAN Congcong, LI Zhongtao, WU Mingbo, Wu Wenting, ZHANG Qinggang
Принадлежит:

The present invention provides a carbon nitride-based photocatalyst and a preparation method thereof. The photocatalyst is prepared by reaction of melem with 3,3′,4,4′-benzophenonetetracarboxylic dianhydride. The photocatalyst according to an embodiment of the present invention achieves energy level matching in structure between the melem structure and the 3,3′,4,4′-benzophenonetetracarboxylic dianhydride, reduces a singlet-triplet energy gap (ΔE), promotes an intersystem crossing process, thereby enhancing the singlet oxygen production and improving the selective photocatalytic oxidation ability. 1. A carbon nitride-based photocatalyst prepared by reacting melem with 3 ,3′ ,4 ,4′-benzophenonetetracarboxylic dianhydride.2. The carbon nitride-based photocatalyst according to claim 1 , wherein a molar ratio of melem to the 3 claim 1 ,3′ claim 1 ,4 claim 1 ,4′-benzophenonetetracarboxylic dianhydride is 5:1˜1:54. A method for preparing a carbon nitride-based photocatalyst claim 1 , comprising:preparing melem by polymerization of melamine; andobtaining the carbon nitride-based photocatalyst by reacting the melem with the 3,3′,4,4′-benzophenonetetracarboxylic dianhydride.5. The method according to claim 4 , wherein the melamine was polymerized at a temperature of 400˜500° C.6. The method according to claim 5 , comprising:placing a melamine-containing crucible in a muffle furnace, and raising the temperature of the muffle furnace to 425° C. at a heating rate of 1.77 K/min;keeping the crucible at the above temperature for 4 h; andpreparing the melem by removing the crucible from the muffle furnace and washing an obtained solid with water of 60˜80° C.7. The method according to claim 4 , wherein the molar ratio of the melem to the 3 claim 4 ,3′ claim 4 ,4 claim 4 ,4′-benzophenonetetracarboxylic dianhydride is 5:1˜1:5.8. The method according to claim 7 , wherein the molar ratio of the melem to the 3 claim 7 ,3′ claim 7 ,4 claim 7 ,4′-benzophenonetetracarboxylic dianhydride is ...

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Номер записи: 78
03-03-2016 дата публикации

Microbial Fuel Cell for Generating Electricity, and Process for Producing Feedstock Chemicals Therefor

Номер: US20160064758A1
Автор: Lalman Jerald A., Shewa Wudneh Ayele
Принадлежит:

A method of preparing feedstock chemical for use in a microbial fuel cell comprises admixing a sodium lignosulfate solution with a catalyst to form a chemical slurry, irradiating the slurry with ultraviolet electromagnetic energy to effect photocatalytic degradation of the sodium lignosulfate lower weight molecular compounds selected from the group consisting of methanol, formic acid, acetic acid C-2 alcohols and C-4 alcohols as part of a photocatalyzed mixture, and separating said catalyst from said photocatalyzed mixture to form a feedstock concentrate. 1. A method of preparing feedstock chemical for use in a microbial fuel cell , comprising ,admixing a source mixture composing a lignin source material with a catalyst to form a chemical source slurry,irradiating said source slurry with electromagnetic energy at a wavelength selected to effect photocatalytic degradation of said lignin source material to short chain fatty acid and/or carbon chemicals as part of a photocatalyzed mixture,separating said metal oxide from said photocatalyzed mixture, andseparating from one or more residual fatty acids from the catalyzed mixture to form a concentrate, andfeeding said concentrate to said microbial fuel cell.2. The method as claimed in claim 1 , wherein the fuel cell comprises a single chamber air-cathode microbial fuel cell claim 1 , wherein said concentrate is fed into said microbial fuel cell in a substantially continuous feed process claim 1 , and operating said fuel cell to bioelectrically convert said concentrate into electricity whilst maintaining said concentrate at a temperature selected at between about 35° C. and 40° C.3. The method as claimed in claim 2 , wherein said metal oxide catalyst comprises TiOhaving an average particle size selected at from 5 nm to less than about 300 nm claim 2 , and the step of separating said metal oxide comprises physically removing said metal oxide catalyst from said photocatalyzed mixture by centrifuge.4. The method as claimed in ...

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Номер записи: 79
17-03-2022 дата публикации

METHODS AND PRODUCTS FOR CONVERTING CARBON DIOXIDE TO ONE OR MORE SMALL ORGANIC COMPOUNDS

Номер: US20220080378A1
Автор: JONES BRYN, Kelly Julian F.
Принадлежит: PHOSENERGY LTD

The present disclosure relates to methods, systems and products for converting carbon dioxide to one or more small organic compounds. In certain embodiments, the present disclosure provides a method of converting COand/or a related form thereof to one or more small organic compounds, the method comprising exposing the COand/or the related form thereof to a beta particle activated high band-gap semiconductor and thereby converting the COand/or the related form thereof to the one or more small organic compounds. 1. A method of converting COand/or a related form thereof to one or more small organic compounds , the method comprising exposing the COand/or the related form thereof to a beta particle activated high band-gap semiconductor and thereby converting the COand/or the related form thereof to the one or more small organic compounds.2. The method according to claim 1 , wherein the one or more small organic compounds comprises one or more of carbon monoxide claim 1 , formaldehyde claim 1 , methane claim 1 , methanol claim 1 , formic acid claim 1 , ethanol claim 1 , acetaldehyde and acetic acid.3. The method according to or claim 1 , wherein the semiconductor has a band-gap of at least 2.6 eV.4. The method according to any one of to claim 1 , wherein the semiconductor has a conduction band edge energy of less than −0.15 volts claim 1 , with respect to the standard hydrogen electrode.5. The method according to any one of to claim 1 , wherein the semiconductor has a conduction band edge energy of less than −0.8 volts with respect to the standard hydrogen electrode.6. The method according to any one of to claim 1 , wherein the semiconductor comprises one or more of a titanate claim 1 , zirconate claim 1 , molybdate claim 1 , vanadate claim 1 , technetate claim 1 , pertechnetate claim 1 , tungstate claim 1 , niobate claim 1 , tantalate claim 1 , chromate claim 1 , doped tin oxides claim 1 , doped zinc oxide claim 1 , a hafnate claim 1 , a germanium oxide claim 1 , a ...

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Номер записи: 80
17-03-2022 дата публикации

HYDROGEN CHLORIDE OXIDATION REACTION CATALYST FOR PREPARING CHLORINE, AND PREPARATION METHOD TEREFOR

Номер: US20220080395A1
Автор: Cho Young Jin, CHUN Jeong Hwan, KIM Won Yong, LEE Ga Ram, WOO Eun Ji
Принадлежит:

The present invention relates to a catalyst for obtaining chlorine (Cl) through an oxidation reaction of hydrogen chloride (HCl), and more particularly, to an oxidation reaction catalyst for preparing Clfrom HCl by addition of a second heterogeneous material to a RuO-supported catalyst using TiOas a support, and a preparation method therefor. According to an embodiment of the present invention, a hydrogen chloride oxidation reaction catalyst for use in a method for preparing chlorine by oxidizing hydrogen chloride includes a support and a heterogeneous material in an active ingredient. The catalyst according to the present invention has both increased catalytic activity at a low temperature and enhanced thermal stability, and thus a catalyst having improved durability such as thermal stability at a high temperature is provided. Therefore, since thermal stability is secured, the performance of the catalyst is maintained for a long time even at a high temperature. 1. A hydrogen chloride oxidation reaction catalyst for use in a method for preparing chlorine by oxidizing hydrogen chloride , wherein the catalyst includes 0.5-10 parts by weight of a heterogeneous material , 1-10 parts by weight of ruthenium oxide as an active ingredient , and 80-99 parts by weight of a support , based on 100 parts by weight of the total catalyst after drying.2. The hydrogen chloride oxidation reaction catalyst of claim 1 , wherein the heterogeneous material includes at least one selected from ceria claim 1 , alumina claim 1 , and silica.3. The hydrogen chloride oxidation reaction catalyst of claim 1 , wherein the support includes at least one selected from alumina claim 1 , titania claim 1 , and zirconia.4. The hydrogen chloride oxidation reaction catalyst of claim 1 , wherein the support has a specific surface area of 5-300 m/g.5. The hydrogen chloride oxidation reaction catalyst of claim 1 , wherein the catalyst is at least one selected from a powder form claim 1 , a particle form claim ...

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Номер записи: 81
10-03-2016 дата публикации

AN IMPROVED METHOD OF PREPARATION OF NANOPARTICULAR METAL OXIDE CATALYSTS

Номер: US20160067678A1
Автор: Fehrmann Rasmus, KRISTENSEN Steffen Buus, Kunov-Kruse Andreas Jonas, Riisager Anders
Принадлежит: DANMARKS TEKNISKE UNIVERSITET

The disclosure concerns an improved method of preparation of nanoparticular vanadium oxide/anatase titania catalysts having a narrow particle size distribution. In particular, the disclosure concerns preparation of nanoparticular vanadium oxide/anatase titania catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is coprecipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. 1. A method of preparation of nano-sized particular vanadium oxide/anatase titania catalysts , the nano-sized particular vanadium oxide/anatase titania catalysts comprising an anatase titania carrier and a catalytically active vanadium oxide component , the method comprising the following steps:a) providing a solution of an ammonium salt in a first solvent;b) providing a solution of one or more hydrolysable titania precursors and one or more hydrolysable vanadium precursors in a second solvent;c) combining the solutions of step a) and b) under acidic, aqueous conditions using hydrochloric acid, sulphuric acid or nitric acid, thereby hydrolyzing the one or more hydrolysable titania precursors and the one or more hydrolysable vanadium precursors;d) aging the reaction mixture of step c) thereby allowing the hydrolytic processes to proceed substantially to completion, thereby providing nano-sized particular titania catalyst precursors comprising crystallization seeds upon which the vanadium oxide is co-precipitated with the titania carrier material; i) drying at atmospheric pressure and temperatures between 50° C. and 120° C. for between 50 hours and 200 hours, or', 'ii) spray drying at temperatures between 50° C. and 120° C., and, 'e) removing solvents and volatile reaction components by either'}f) calcining the nano-sized particular titania catalysts precursor at temperature above 380° C.2. A method according to wherein the aging in step d) proceeds for between 0.5 and 8 hours.3. A ...

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Номер записи: 82
10-03-2016 дата публикации

PHOTOCATALYTIC FILTER, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR REACTIVATING THE SAME

Номер: US20160067698A1
Автор: Cho Geundo, Ku Hye Kyung, Lee Doug Youn, Suh Daewoong, Yi Jaeseon, Yoon Kyung Sik
Принадлежит:

The devices, systems and techniques disclosed in this patent document include photocatalytic filter devices and can be used to provide a method for manufacturing a photocatalytic filter with improved adhesion. In addition, the present disclosure of this patent document includes technology to provide a method for reactivating a photocatalytic filter. Using the disclosed techniques, even if a photocatalytic filter is contaminated, the contaminated photocatalytic filter is easily reactivated while maintaining improved adhesion. 1. A method of manufacturing a photocatalytic filter , the method including:dispersing a photocatalytic material;coating a support with the dispersed photocatalytic material; anddrying the coated support; andsintering the dried support.2. The method of claim 1 , wherein the photocatalytic material includes titanium dioxide (TiO).3. The method of claim 1 , wherein the support includes porous ceramic.4. The method of claim 1 , wherein the sintering is performed for from one to three hours at a temperature between 400° C. and 500° C.5. A photocatalytic filter claim 1 , including:a porous ceramic support; and{'sub': '2', 'dispersed TiOnanoparticles coated on the porous ceramic support.'}6. The photocatalytic filter of claim 5 , wherein the TiOnanoparticles coated on the porous ceramic support are those sintered for from one to three hours at a temperature between 400° C. and 500° C.7. The filter of claim 5 ,wherein the photocatalytic filter comprises a plurality of adjacent parallel cells that form an air flow path in a direction facing UV LED for photocatalytic activation.8. The filter of claim 7 , wherein the photocatalytic filter has a height of 2 to 15 mm.9. The filter of claim 7 ,wherein a frame between the cells has a thickness of 0.3 to 1.2 mm.10. The filter of claim 7 ,wherein each of the cells has a width of 1 to 4 mm.11. The filter of claim 7 ,{'sup': '2', 'wherein the cells has a density of 30 to 260 cells/inch.'}12. A method of ...

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Номер записи: 83
27-02-2020 дата публикации

IMPROVED PROCESS TO DEPOSIT PD- NANOPARTICLES

Номер: US20200061585A1
Автор: GOY Roman, MEDLOCK Jonathan Alan
Принадлежит:

The present invention relates to an improved process to prepare and deposit Pd-nanoparticles onto a metal oxide. 1. A process for depositing Pd-nanoparticles on at least one metal oxide , wherein the process comprises a sonication step.2. Process according to claim 1 , wherein the at least one metal oxide in powder form (or other solid form) or in the form of a layer claim 1 , which is used to coat another material.3. Process according to claim 1 , wherein PdCland/or NaPdCl.4. Process according to claim 1 , wherein the sonication is carried out at a frequency of 30-50 kHz.5. Process according to claim 1 , wherein the sonication is carried out by using an ultrasonic bath and/or an immersion probe.6. Process according to claim 1 , wherein at least one reducing agent (preferably sodium formate) is added to the Pd-salt solution.7. Process according to claim 1 , wherein at least one surfactant (preferably a polyethylene glycol) is added to the Pd-salt solution. The present invention relates to an improved process to prepare and deposit Pd-nanoparticles onto a metal oxide.Catalyst with Pd nanoparticles are very well-known and widely used catalyst.A very prominent species of these kind of catalyst is the so called Lindlar catalyst.The Lindlar catalyst is a heterogeneous catalyst which consists of palladium deposited on a calcium carbonate carrier which is also treated with various forms of lead.There are other species of similar catalysts, wherein only palladium nanoparticles are deposited and which are lead free.There are methods known how to deposit (=to dope) a metal oxide (which is part of a catalytic system) with Pd-nanoparticles.The deposition methods known from the prior art have disadvantages like for example:It was now found that when the process of depositing Pd-nanoparticles comprises a sonication step, these disadvantages are overcome.Therefore, the present invention relates to a process for depositing Pd-nanoparticles on a metal oxide (or a mixture of metal ...

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Номер записи: 84
11-03-2021 дата публикации

TITANIUM OXIDE-COMPRISING FIBROUS FILTER MATERIAL

Номер: US20210069621A1
Автор: SALAMA Khaled Fikry
Принадлежит: Imam Abdulrahman Bin Faisal University

A filter may remove PMand/or other airborne pollutants, which filter has fibers of an average diameter of no more than 500 nm, the fibers of at least 90 wt. % polyacrylonitrile, relative to all fibers in the filter; and a catalyst of at least 90 wt. % TiO, relative to all catalytic metals in the filter, dispersed onto the fibers. The fibers need not be charged. The TiOmay be condensed or precipitated onto the fibers out of a liquid containing the TiOand the fibers by simple methods. The catalyst may be activated by UV irradiation to decompose particulate matter having an average particle size of 2.5 μm or less, i.e., PM, and/or other airborne pollutants from air. Such filters may be implemented around areas of vehicle traffic, e.g., as elements of traffic lights, and may be used to controllably purify polluted air. 1: A method for removing at least one airborne contaminant from polluted air , the method comprising:passing polluted air comprising the at least one airborne contaminant through a cyclone to remove particles of at least 100 μm, to obtain cycloned air having less of the airborne contaminant than the polluted air;contacting the cycloned air with an uncharged filter under irradiation by ultraviolet (UV) light, to obtain a filtered air having less of the airborne contaminant than the cycloned air,{'sub': '2', 'wherein the filter comprises (i) fibers of an average diameter of no more than 500 nm, the fibers comprising at least 90 wt. % polyacrylonitrile, relative to all fibers in the filter, and (ii) a catalyst comprising at least 90 wt. % TiO, relative to all catalytic metals in the filter, dispersed onto the fibers, and'}wherein the at least one airborne contaminant comprises particulate matter having a particle size of 2.5 μm or less, CO, a volatile organic compound, a sulfur oxide, a nitrogen oxide, or a combination of two or more of any of these.2: The method of claim 1 , wherein the passing and the contacting comprise drawing the polluted air with a ...

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Номер записи: 85
11-03-2021 дата публикации

PHOTOCATALYTIC CERAMIC

Номер: US20210069681A1
Автор: Lesci Isidoro Giorgio
Принадлежит: ITALCER S.p.A.

The present invention relates to a method for producing an antibacterial photocatalytic ceramic that comprises: 1. A method for producing an antibacterial photocatalytic ceramic that comprises:making available amorphous Ti (amorphous titanium);making available a biomimetic material or a biomaterial based on calcium phosphate;functionalizing said biomimetic material or said biomaterial based on calcium phosphate with said amorphous Ti, obtaining a functionalized and oriented composite, where oriented means having a regular crystallographic arrangement;adding said functionalized composite to a ceramic mixture, and/or applying said functionalized composite on a ceramic semi-finished product, where ceramic semi-finished product means the ceramic material before baking;baking at a temperature between 600 and 1400° C., preferably between 900 and 1300° C. for a time that varies from 20 to 500 minutes, obtaining an antibacterial photocatalytic ceramic.2. The method according to claim 1 , wherein said amorphous Ti is selected from the group that comprises at least one of: titanium(IV) oxysulphate claim 1 , titanium tetrachloride claim 1 , titanium tetraisopropoxide claim 1 , titanium isopropoxide claim 1 , titanium oxychloride.3. The method according to claim 1 , wherein said biomimetic material or biomaterial is preferably selected from the group that comprises brushite claim 1 , monetite claim 1 , hydroxyapatite (nHA) claim 1 , (β/α) tricalcium phosphate (TCP) and is calcium-deficient on the surface.4. The method according to claim 1 , wherein said material is a biomimetic and is nanocrystalline hydroxyapatite nHA obtained at a pH between 7 and 14 claim 1 , preferably at pH 11 claim 1 , by neutralizing a suspension of calcium hydroxide or calcium acetate or calcium chloride or calcium nitrate drop by drop with phosphoric acid under vigorous stirring for 2-12 hours.5. The method according to claim 4 , wherein said nHA has a molar ratio between surface Ca/P in the range from ...

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Номер записи: 86
05-06-2014 дата публикации

SUBSTRATE WITH SINUOUS WEB AND PARTICULATE FILTER INCORPORATING THE SAME

Номер: US20140150386A1
Автор: Addiego William Peter, Badding Michael Edward, Elliott Paul Martin, Fischer Michael, Ketcham Thomas Dale, Lukanin Denis Pavlovich, Peterson Richard Curwood
Принадлежит:

Described herein is a substrate including a central longitudinal axis, a first support web, and a second support web. A sinuous web may be positioned between the first support web and the second support web. The sinuous web may include transverse web portions and bridging web portions, where the bridging web portions alternatively connect ends of adjacent transverse web portions. The sinuous web may be connected to the first support web by support legs extending between bridging web portions and a surface of the first support web. The sinuous web may be connected to the second support web by support legs extending between bridging web portions and a surface of the second support web. A support leg length to distance between transverse web portions ratio may be from about 1.0 to about 4.0. 1. A substrate having longitudinal channels through which a fluid may pass , comprising:a central longitudinal axis;a first support web and a second support web; anda sinuous web between the first support web and the second support web, whereinthe sinuous web comprises transverse web portions and bridging web portions,the bridging web portions alternatively connect ends of adjacent transverse web portions closer in proximity to the longitudinal axis and ends of adjacent transverse web portions further in proximity from the longitudinal axis, forming a sinuous shape in a cross section perpendicular to the longitudinal axis,the sinuous web is connected to the first support web by support legs extending between bridging web portions that connect ends of adjacent transverse web portions closer in proximity to the longitudinal axis and a surface of the first support web facing away from the longitudinal axis,the sinuous web is connected to the second support web by support legs extending between bridging web portions that connect ends of adjacent transverse web portions further in proximity from the longitudinal axis and a surface of the second support web facing toward the longitudinal ...

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Номер записи: 87
24-03-2022 дата публикации

Self-Disinfecting Photocatalyst Sheet With Primer

Номер: US20220088235A1
Автор: Luo Li-Jyuan, Maa Chia-Yiu, Yu Chun-Te
Принадлежит:

A self-disinfecting photocatalyst sheet includes a substrate material and a photocatalyst layer with a primary photocatalyst and a secondary photocatalyst. The primary photocatalyst is a metal oxide photocatalyst, whereas the secondary photocatalyst is a metallic photocatalyst. The substrate material binds the photocatalyst layer by either connecting a metal ion of the primary photocatalyst and/or the secondary photocatalyst through two oxygen atoms of a carboxyl group (COO), or by forming hydrogen bonds between a carbonyl group and a surface hydroxyl group (OH) of the primary photocatalyst. The self-disinfecting photocatalyst sheet is activatable by a visible light and can self-disinfect against bacteria and viruses. 1. A self-disinfecting photocatalyst sheet , comprisinga substrate material with a first side and a second side opposite the first side; anda photocatalyst layer comprising a primary photocatalyst and a secondary photocatalyst, the primary photocatalyst comprises a metal oxide photocatalyst,', 'the secondary photocatalyst comprises a metallic photocatalyst,', 'a mass ratio of the primary photocatalyst to the secondary photocatalyst is between 10:1 to 100:1, and', connecting a metal ion of either or both of the primary photocatalyst and the secondary photocatalyst through two oxygen atoms of a carboxyl group (COO), or', {'sup': '−', 'forming hydrogen bonds between a carbonyl group and a surface hydroxyl group (OH) of the primary photocatalyst.'}], 'the substrate material binds the photocatalyst layer by either], 'wherein2. The self-disinfecting photocatalyst sheet of claim 1 , further comprising an adhesive layer which is coated on the second side of the substrate material.3. The self-disinfecting photocatalyst sheet of claim 1 , wherein the primary photocatalyst further comprises anatase titanium dioxide (TiO).4. The self-disinfecting photocatalyst sheet of claim 3 , wherein the primary photocatalyst further comprises rhombus-shape anatase titanium ...

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Номер записи: 88
24-03-2022 дата публикации

AIR PURIFIER

Номер: US20220088262A1
Автор: USA Tomoharu, YAMAGUCHI Katsuhiro
Принадлежит:

An air purifier according to an aspect of the present disclosure includes: an air passage defined between a first inner wall surface and a second inner wall surface that are planar and face each other, having a flat passage cross section in which a distance between the first inner wall surface and the second inner wall surface is small, and meandering in a plane parallel to the first inner wall surface and the second inner wall surface; a catalyst member including a support having a flat mesh shape, and a photocatalyst supported on the support, the catalyst member being disposed parallel to the first inner wall surface and the second inner wall surface in the air passage; and a plurality of light sources dispersed on the second inner wall surface, and configured to irradiate the catalyst member with light that activates the photocatalyst. 1. An air purifier comprising:an air passage defined between a first inner wall surface and a second inner wall surface that are planar and face each other, having a flat passage cross section in which a distance between the first inner wall surface and the second inner wall surface is small, and meandering in a plane parallel to the first inner wall surface and the second inner wall surface;a catalyst member including a support having a flat mesh shape, and a photocatalyst supported on the support, the catalyst member being disposed parallel to the first inner wall surface and the second inner wall surface in the air passage; anda plurality of light sources dispersed on the second inner wall surface, and configured to irradiate the catalyst member with light that activates the photocatalyst.2. The air purifier according to claim 1 , further comprising:a first current plate extending from a side adjacent to the first inner wall surface and a second current plate extending from a side adjacent to the second inner wall surface, the first and second current plates forming a labyrinth structure in an inlet portion of the air passage.3. ...

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Номер записи: 89
17-03-2016 дата публикации

UREA HYDROLYSIS REACTOR FOR SELECTIVE CATALYTIC REDUCTION

Номер: US20160074809A1
Автор: Goffe Randal A.
Принадлежит: PACCAR INC

This disclosure features a urea conversion catalyst located within a urea decomposition reactor (e.g., a urea decomposition pipe) of a diesel exhaust aftertreatment system. The urea conversion catalyst includes a refractory metal oxide and a cationic dopant. The urea conversion catalyst can decrease the temperature at which urea converts to ammonia, can increase the urea conversion yield, and can decrease the likelihood of incomplete urea conversion. 1. A urea decomposition reactor , comprising:a urea conversion catalyst;wherein the urea conversion catalyst comprises a refractory metal oxide and a cationic dopant.2. The urea decomposition reactor of claim 1 , wherein the refractory metal oxide is selected from the group consisting of cerium oxide claim 1 , titanium oxide claim 1 , zirconium oxide claim 1 , aluminum oxide claim 1 , silicon oxide claim 1 , hafnium oxide claim 1 , vanadium oxide claim 1 , niobium oxide claim 1 , tantalum oxide claim 1 , chromium oxide claim 1 , molybdenum oxide claim 1 , tungsten oxide claim 1 , ruthenium oxide claim 1 , rhodium oxide claim 1 , iridium oxide claim 1 , nickel oxide claim 1 , and any combination thereof.3. The urea decomposition reactor of claim 1 , wherein the refractory metal oxide is selected from the group consisting of titanium oxide claim 1 , zirconium oxide claim 1 , cerium oxide claim 1 , and any combination thereof.4. The urea decomposition reactor of claim 1 , wherein the refractory metal oxide is zirconium oxide or cerium oxide.5. The urea decomposition reactor of claim 1 , wherein the cationic dopant is an oxide comprising Mg claim 1 , Ni claim 1 , Ti claim 1 , V claim 1 , Nb claim 1 , Ta claim 1 , Cr claim 1 , Mo claim 1 , W claim 1 , W claim 1 , Mn claim 1 , Fe claim 1 , Zn claim 1 , Ga claim 1 , Al claim 1 , In claim 1 , Ge claim 1 , Si claim 1 , Sn claim 1 , Co claim 1 , Ni claim 1 , Ba claim 1 , La claim 1 , Ce claim 1 , and Nb.6. The urea decomposition reactor of claim 1 , wherein the urea conversion ...

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Номер записи: 90
17-03-2016 дата публикации

SILICA-STABILIZED ULTRAFINE ANATASE TITANIA, VANADIA CATALYSTS, AND METHODS OF PRODUCTION THEREOF

Номер: US20160074834A1
Автор: Chapman David M.
Принадлежит:

The invention is directed to compositions and processes for the production of silica-stabilized ultrafine anatase titanias and which may further comprise tungsten and vanadia. The surface stabilization may be by treatment of the TiOparticles with a low molecular weight and/or small nanoparticle form of silica such as, in preferred embodiments, a tetra(alkyl)ammonium silicate or silicic acid, which serves to efficiently maintain the anatase phase and prevent crystal growth under severe thermal and hydrothermal conditions, even in the presence of vanadia. The vanadia catalysts produced from the novel titanias have equal or improved catalytic activity for selective catalytic reduction of NOx compared to conventional vanadia supported silica-titania based catalysts. The invention is further directed to diesel emission catalytic devices comprising the novel titania-based catalyst compositions. 1. A method of producing a silica-stabilized titania catalyst support material , comprising:{'sub': 2', '2, 'providing a TiOslurry comprising TiOparticles;'}providing a particulate silica source;{'sub': 2', '2', '2, 'combining the TiOslurry with the particulate silica source to form a TiO—SiOmixture; and'}{'sub': 2', '2', '2, 'adjusting the TiO—SiOmixture to a pH<8.5 and a temperature <80° C. wherein the particulate silica source is dissolved and reprecipitated on the TiOparticles to form the silica-stabilized titania catalyst support material.'}2. The method of further comprising the step of combining the silica-stabilized titania catalyst support material with WOto form a silica-stabilized titania tungsten catalyst support material.3. The method of further comprising washing and sintering the silica-stabilized titania tungsten catalyst support material.4. The method of wherein the silica-stabilized titania tungsten catalyst support material claim 2 , comprises:{'sub': 2', '2', '3, 'sup': '2', '86%-94% dry weight of TiO, 3%-9% dry weight of a SiO, and 3%-7% dry weight of WO; and ...

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Номер записи: 91
24-03-2022 дата публикации

METHODS FOR PRODUCING C2 TO C5 PARAFFINS USING A HYBRID CATALYST COMPRISING GALLIUM METAL OXIDE

Номер: US20220088574A1
Автор: Andrews Kyle C., Chojecki Adam, DeWilde Joseph F., Kirilin Alexey, MALEK Andrzej, Nieskens Davy L.S., Pollefeyt Glenn, Santos Castro Vera P., Yancey David F.
Принадлежит: Dow Global Technologies LLC

A method for preparing Cto Cparaffins includes introducing a feed stream including hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream including Cto Cparaffins in the presence of a hybrid catalyst. The hybrid catalyst includes a microporous catalyst component; and a metal oxide catalyst component selected from (A) a bulk material consisting of gallium oxide, (B) gallium oxide present on a titanium dioxide support material, and (C) a mixture of gallium oxide and at least one promoter present on a support material selected from Group 4 of the IUPAC periodic table of elements. 1. A method for preparing Cto Cparaffins comprising:introducing a feed stream comprising hydrogen gas and a carbon-containing gas selected from the group consisting of carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor; and{'sub': ['2', '5'], 'claim-text': ['a microporous catalyst component; and', {'claim-text': ['(A) a bulk material consisting of gallium oxide,', '(B) gallium oxide present on a titanium dioxide support material, and', '(C) a mixture of gallium oxide and at least one promoter present on a support material, the support material comprising at least one oxide of a metal selected from Group 4 of the IUPAC periodic table of elements.'], '#text': 'a metal oxide catalyst component selected from the group consisting of:'}], '#text': 'converting the feed stream into a product stream comprising Cto Cparaffins in the reaction zone in the presence of a hybrid catalyst, the hybrid catalyst comprising:'}2. The method of claim 1 , wherein the metal oxide catalyst component is a bulk material consisting of gallium oxide.3. The method of claim 1 , wherein the metal oxide catalyst component is gallium oxide present on a titanium dioxide support material.4. The method of claim 1 , wherein the metal oxide catalyst component ...

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Номер записи: 92
24-03-2022 дата публикации

Self-Disinfecting Multi-Band Photocatalyst Sheet

Номер: US20220088576A1
Автор: Maa Chia-Yiu, Yu Chun-Te
Принадлежит:

A self-disinfecting photocatalyst sheet includes a substrate material and a photocatalyst layer with a primary photocatalyst and a secondary photocatalyst. The primary photocatalyst is a metal oxide photocatalyst, whereas the secondary photocatalyst is a metallic photocatalyst. The primary photocatalyst forms a covalent bond with the substrate material. The self-disinfecting photocatalyst sheet is photocatalytic active to different bands of wavelength. Another self-disinfecting photocatalyst sheet includes a substrate material, a prime material layer and a photocatalyst layer with a primary photocatalyst and a secondary photocatalyst. The prime material layer is between the substrate and the photocatalyst layer. The primary photocatalyst forms a covalent bond with the prime material. 1. A self-disinfecting photocatalyst sheet , comprisinga substrate material with a first side and a second side opposite the first side; anda photocatalyst layer comprising a primary photocatalyst and a secondary photocatalyst, the primary photocatalyst comprises a metal oxide photocatalyst,', 'the secondary photocatalyst comprises a metallic photocatalyst,', 'a mass ratio of the primary photocatalyst to the secondary photocatalyst is greater than 2:1,', 'the primary photocatalyst forms a covalent bond with the substrate material at a molecular level on the first side of the substrate material,', 'the photocatalyst layer is photocatalytic active to every wavelength band of a plurality of wavelength bands comprising 190˜280 nm, 280˜315 nm, 315 400 nm, and 400˜700 nm,', 'the photocatalyst layer is more photocatalytic active to the wavelength band 190˜280 nm than to the wavelength band 280˜315 nm,', 'the photocatalyst layer is more photocatalytic active to the wavelength band 280˜315 nm than to the wavelength band 315˜400 nm, and', 'the photocatalyst layer is more photocatalytic active to the wavelength band 315˜400 nm than to the wavelength band 400˜700 nm., 'wherein2. The self- ...

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Номер записи: 93
16-03-2017 дата публикации

PHOTOCATALYTIC HYDROGEN PRODUCTION FROM WATER OVER MIXED PHASE TITANIUM DIOXIDE NANOPARTICLES

Номер: US20170072391A1
Автор: Bashir Shahid, IDRISS Hicham, WAHAB Ahmed Khaja
Принадлежит:

Photocatalysts and methods of using photocatalysts for synergistic production of hydrogen from water are disclosed. The photocatalysts include photoactive titanium dioxide particles having an anatase to rutile ratio of at least 1.5:1 and electrically conductive material deposited on the titanium dioxide particle. 1. A photocatalyst comprising: a mean particle size of 95 nanometers (nm) or less, and having', 'a ratio of anatase to rutile of at least 1.5:1 to 10:1, and', {'sup': 2', '2, 'a surface area of 15 m/g to 30 m/g; and'}], '(a) mixed phase titanium dioxide nanoparticles having(b) an electrically conductive material deposited on the surface of the titanium dioxide nanoparticles,wherein the electrically conductive material comprises a metal or a metal compound thereof,wherein the mixed phase titanium dioxide nanoparticles are the reaction product of single phase titanium dioxide anatase nanoparticles having a mean particle size of 95 nm or less and heat, andwherein particle size is determined by X-ray Diffraction and surface area is determined using BET analysis.2. (canceled)3. The photocatalyst of claim 1 , wherein the anatase phase to rutile phase ratio ranges from 1.5:1 to 5:1.4. The photocatalyst of claim 1 , wherein the mean particle size ranges from 10 nm to 80 nm.5. The photocatalyst of claim 1 , wherein the Ti2pbinding energy as determined by X-Ray PhotoElectron Spectroscopy (XPS) falls in between that of single phase TiOanatase particle and a single phase TiOrutile particle.6. The photocatalyst of claim 1 , wherein the electrically conductive material comprises a metal or a metal compound thereof.7. The photocatalyst of claim 6 , wherein the electrically conductive material comprises silver (Ag) claim 6 , rhodium (Rh) claim 6 , gold (Au) claim 6 , platinum (Pt) claim 6 , palladium (Pd) or any combination thereof.8. (canceled)9. The photocatalyst of claim 8 , wherein the photocatalyst is Pt.10. (canceled)11. The photocatalyst of claim 1 , wherein the ...

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Номер записи: 94
05-03-2020 дата публикации

PGM CATALYST COUPLED WITH A NON-PGM CATALYST WITH HC OXIDATION CAPABILITY

Номер: US20200070092A1
Автор: DORNER Robert, KALWEI Martin
Принадлежит: BASF CORPORATION

The present invention relates to a diesel oxidation catalyst comprising a substrate and a wash-coat comprising a first layer and a second layer, wherein the substrate has a substrate length, a front end and a rear end, the washcoat comprising the first layer comprising a first metal oxide and comprising a platinum group metal supported on a metal oxide support material; the second layer comprising a second metal oxide and comprising one or more of an oxidic compound of vanadium, an oxidic compound of tungsten and a zeolitic material comprising one or more of Fe and Cu; wherein the first layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on an intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on x % of the length of the substrate from the front end of the substrate, and wherein the second layer is at least partially disposed directly on the substrate, or is at least partially disposed directly on the intermediate layer which is disposed directly on the substrate over the entire length of the substrate, on y % of the length of the substrate from the rear end of the substrate, wherein x is in the range of from 25 to 75 and y is in the range of from 25 to 75 and wherein x+y is in the range of from 95 to 105, wherein the intermediate layer comprises alumina. 1: A diesel oxidation catalyst comprising a substrate and a washcoat comprising a first layer and a second layer , wherein the substrate has a substrate length , a front end and a rear end ,the first layer comprising a first metal oxide and comprising a platinum group metal supported on a metal oxide support material;the second layer comprising a second metal oxide and comprising one or more selected from the group consisting of an oxidic compound of vanadium, an oxidic compound of tungsten and a zeolitic material comprising one or more selected from the group consisting of Fe and Cu;wherein the first layer ...

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Номер записи: 95
05-03-2020 дата публикации

FILTER

Номер: US20200070125A1
Автор: IWANAGA Takeshi, OGURA Yoshitake, OKUNO Hiroyoshi, TAKEUCHI Sakae, YOSHIKAWA Hideaki
Принадлежит: FUJI XEROX CO., LTD.

A filter includes resin particles and photocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum. The photocatalyst particles are present on the surface of the resin particle. 1. A filter comprising:resin particles; andphotocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum,wherein the photocatalyst particles are present on a surface of each resin particle.2. The filter according to claim 1 , wherein the photocatalyst particles have absorption in an entire wavelength range from 400 nm to 800 nm in the visible absorption spectrum.3. The filter according to claim 1 , wherein the photocatalyst particles have an absorption peak in a range from 2700 cmto 3000 cmin an infrared absorption spectrum.4. The filter according to claim 1 , wherein the photocatalyst particles are at least one type of particles selected from the group consisting of metatitanic acid particles claim 1 , titanium oxide particles claim 1 , titanium oxide aerogel particles claim 1 , and silica-titania composite aerogel particles.5. The filter according to claim 1 , wherein the photocatalyst particles have an average particle size in a range from 0.01 μm to 0.5 μm.6. The filter according to claim 1 , wherein the photocatalyst particles have an average particle size in a range from 0.02 μm to 0.15 μm.7. The filter according to claim 1 , wherein the resin particles have an average particle size in a range from 0.5 μm to 50 μm.8. The filter according to claim 1 , wherein the resin particles have an average particle size in a range from 3 μm to 20 μm.9. The filter according to claim 1 , wherein a ratio of an average particle size of the photocatalyst particles to an average particle size of the resin particles is in a range from 0.001 to 0.1.10. The filter according to claim 1 , wherein a ratio of an average particle size of the photocatalyst particles to an average particle size of the resin ...

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Номер записи: 96
05-03-2020 дата публикации

PROCESS FOR PREPARING TITANIC ACID SALT, TITANIC ACID, AND TITANIUM OXIDE HAVING CONTROLLABLE PARTICLE SIZE AND HIERARCHICAL STRUCTURE

Номер: US20200071185A1
Автор: JIN Xu, Li Jianming, Liu He, LIU Xiaodan, Sun Liang, Wang Xiaoqi
Принадлежит: PETROCHINA COMPANY LIMITED

A process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, wherein the process includes the steps of: preparing a titanium-containing peroxo-complex solution; adding a basic metal compound to the titanium-containing peroxo-complex solution to form a mixture solution; adding one of polyvinyl alcohol, hydroxypropyl methyl cellulose, and polyethylene glycol to the mixture solution to form a precursor dispersion; and subjecting the precursor dispersion to a solvothermal reaction to obtain the titanic acid salt having a hierarchical structure. The process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, can not only realize the regulation of morphology and particle diameter of constituent units in the hierarchical structure, but also can achieve the regulation of particle size in the hierarchical structure. 1. A process for preparing a titanic acid salt having a controllable particle size and a hierarchical structure , wherein the process comprises the steps of:S1, preparing a titanium-containing peroxo-complex solution;S2, adding a basic metal compound to the titanium-containing peroxo-complex solution to form a mixture solution;S3, adding a polymer to the mixture solution to form a precursor dispersion; the polymer includes one of polyvinyl alcohol, hydroxypropyl methyl cellulose, and polyethylene glycol; andS4, subjecting the precursor dispersion to a solvothermal reaction to obtain the titanic acid salt having a hierarchical structure.2. The process according to claim 1 , wherein the titanic acid salt includes one or more of lithium titanate claim 1 , sodium titanate claim 1 , and potassium titanate.3. The process according to claim 1 , wherein the hierarchical structure includes one or more of a spherical hierarchical structure composed of nanoplatelet particles claim 1 , a spherical hierarchical ...

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Номер записи: 97
18-03-2021 дата публикации

Air-Filtering Anti-Bacterial Lighting Device

Номер: US20210077653A1
Автор: Maa Chia-Yiu, Yu Chun-Te
Принадлежит:

An anti-bacterial lighting device includes a translucent housing, a first light source, a second light source, an air-inflow port, and an air circulation mechanism. The translucent housing is air-permeable and coated with an anti-bacterial photocatalyst on its surface. The first light source is a visible light source emitting a visible light with a spectral power distribution (SPD)>95% in a visible light wavelength range (>400 nm). The second light source is a far-UVC light source emitting a non-visible light with an SPD>90% in a 200 nm˜230 nm wavelength range. The lights of the first light source and the second light source shine through the translucent housing and activates the anti-bacterial photocatalyst on the housing. The air circulation mechanism sucks an ambient air into the housing through the air-inflow port and forces the air out through the air-permeable housing. 1. A lighting device , comprising a translucent housing;a first light source;a second light source;an air inflow port; andan air circulation mechanism; the translucent housing houses the first light source, the second light source, and the air circulation mechanism,', 'the translucent housing is air-permeable, and is coated with an anti-bacterial photocatalyst on its surface,', 'the first light source comprises a visible light source configured to emit a visible light with a spectral power distribution (SPD)>95% in a visible light wavelength range >400 nm,', 'the second light source comprises a far-ultraviolet-C (UVC) light source configured to emit a non-visible light with an SPD>90% in a 200 nm˜230 nm wavelength range,', 'the first light source and the second light source are disposed inside the housing, and their lights shine through the translucent housing to activate the anti-bacterial photocatalyst coated on the housing,', 'the air circulation mechanism is configured to suck an ambient air into the housing through the air-inflow port and force the air out through the air-permeable housing ...

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Номер записи: 98
14-03-2019 дата публикации

Clean Gas Stack

Номер: US20190076783A1
Автор: DAVIDSON James Gary, Hendrickson Dave
Принадлежит:

A flow-through solid catalyst formed by coating a zeolite material on a metal or ceramic solid substrate. In some embodiments, the solid substrate is formed as flat plates, corrugated plates, or honeycomb blocks. 1. An apparatus for drying and cleaning stack gases from a fossil fuel source , the apparatus comprising: [{'sup': '2', 'a zeolite material with a porosity of a total surface area of not greater than 1200 m/g and effective for achieving at least 70% reduction in carbon oxides, sulfur oxides, or nitrogen oxides from the stack gases;'}, 'a metal or ceramic solid substrate to which the zeolite material has been applied to create a zeolite-coated solid substrate; and', 'spacing between components of the substrate being selected based on a flow-through capacity of, a pressure drop across, and an effectiveness of removal of carbon oxides, sulfur oxides, or nitrogen oxides by the flow-through solid catalyst; and, 'a plurality of flow-through solid catalysts, each of the plurality of flow-through solid catalysts comprisinga pair of electrodes positioned inline in a gas flow upstream of the plurality of flow-through solid catalysts, the electrodes being insulated from containment of the gas flow, with a DC voltage applied between the electrodes to ionize water vapor in the gas flow without creating substantial amounts of hydrogen gas and to reduce moisture content of the gas flow through the flow-through solid catalysts.2. The apparatus of claim 1 , the DC voltage applied between the electrodes being less than 34 volts.3. The apparatus of claim 1 , the solid substrate comprising a material selected from a group consisting of stainless steel claim 1 , copper claim 1 , titanium claim 1 , a titanium alloy claim 1 , aluminum claim 1 , cordierite claim 1 , mullite claim 1 , and alumina.4. The apparatus of claim 1 , each of the plurality of flow-through solid catalysts further comprising a binder to increase adherence of the zeolite material to the substrate.5. The ...

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Номер записи: 99
14-03-2019 дата публикации

FERRITE-BASED CATALYST, PREPARATION METHOD THEREFOR, AND METHOD FOR PREPARING BUTADIENE USING SAME

Номер: US20190076836A1
Автор: Byun Young Chang, Cho Ara, KIM Daehyeon, KIM Mi Kyung, LEE Jeong Seok
Принадлежит:

The present specification provides a ferrite catalyst, a method for preparing the same and a method for preparing butadiene using the same. 1. A method for preparing a ferrite catalyst comprising:preparing an aqueous precursor solution including a metal precursor;mixing the aqueous precursor solution with a basic solution and coprecipitating the result;obtaining a solid sample through heat treatment after the coprecipitating;preparing a slurry by mixing the solid sample in distilled water and grinding the result;loading the slurry into a carrier; andbaking the slurry-loaded carrier,wherein the carrier has a pore structure, andthe pore structure has, when employing, in a distance from a center to a surface of the carrier, the center as 0% and the surface as 100%, a porosity of 10% to 50% in 0% to 50%.2. The method for preparing a ferrite catalyst of claim 1 , wherein the metal precursor includes any selected from: a metal nitrate precursor or a metal chloride precursor.3. The method for preparing a ferrite catalyst of claim 2 , wherein the metal nitrate precursor comprises zinc nitrate (Zn(NO).6HO) claim 2 , iron nitrate (Fe(NO).9HO) or a nitrate salt additive claim 2 , and{'sub': 3', '2', '3', '2', '2', '3', '2', '2', '3', '2', '2', '3', '2', '3', '3', '2', '3', '3', '2', '3', '2', '2', '3', '2', '2', '3', '2', '2', '3', '2', '2', '3', '3', '2', '3', '3', '2', '3', '3', '2, 'the nitrate salt is any one or more selected from: beryllium nitrate (Be(NO)), magnesium nitrate (Mg(NO).6HO), calcium nitrate (Ca(NO).4HO), strontium nitrate (Sr(NO).4HO), barium nitrate (Br(NO)), aluminum nitrate (Al(NO).9HO), chromium nitrate (Cr(NO).9HO), cobalt nitrate (Co(NO).6HO), manganese nitrate (Mn(NO).6HO), copper nitrate (Cu(NO).6HO), nickel nitrate (Ni(NO).6HO), lanthanum nitrate (La(NO).6HO), cerium nitrate (Ce(NO).6HO) or bismuth nitrate (Bi(NO).5HO).'}4. The method for preparing a ferrite catalyst of claim 2 , wherein the metal chloride precursor comprises zinc chloride (ZnCl) ...

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Номер записи: 100