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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 7799. Отображено 100.
01-11-2012 дата публикации

Method and device for producing alkene derivatives

Номер: US20120277464A1
Автор: Alberto Garcia, Christophe Claeys, Jean Luc Dubois, Nabil Tlili, Nicolas Dupont, Serge Tretjak, Sylvain Gerard
Принадлежит: Arkema France SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude

The invention relates to a method for producing a flow containing at least one alkene derivative, including the following steps: a step a) of reacting a flow containing one or more alkenes and one or more alkanes—the ratio of said alkanes to said alkenes being at least 1 by volume—with a flow containing mainly oxygen, in order to obtain at least one converted flow containing at least said alkene derivative; a step b) of separating the converted flow produced in step a) into at least said flow containing at least said alkene derivative and a residual flow containing mainly one or more hydrocarbons and one or more inert compounds; and a step c) of separating all or a portion of said residual flow by means of permeation into at least one first flow containing mainly one or more inert compounds and a second flow containing mainly one or more hydrocarbons.

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Номер записи: 1
03-01-2013 дата публикации

Spinel structured catalyst for aldehyde production

Номер: US20130006019A1
Автор: Arne Andersson, Robert Häggblad
Принадлежит: Individual

The present invention refers to a catalyst for aldehyde production, in particular formaldehyde or acetaldehyde production, through selective oxidation of alkanol, especially methanol or ethanol, with oxygen, said catalyst having a spinel structure. The catalyst typically comprises a Fe a q +V b+ Mo c+ y +Δ z O 4 spinel structure wherein Δ is an optional cation vacancy and wherein wherein z=3−q−x−y and q×a+x×b+y×c=8 in concentrations corresponding to 0.6<q<3, 0<x<1.5, 0<y<1 and 0<z<1.3 and 2<a<3, 3<b<5 and 3<c<6. The present invention further refers to a process for producing said catalyst and to the use of said catalyst for selective oxidation of alkanol, preferably methanol or ethanol, with oxygen to aldehyde, preferably formaldehyde or acetaldehyde.

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Номер записи: 2
28-02-2013 дата публикации

Gas separations with redox-active metal-organic frameworks

Номер: US20130053585A1
Автор: Eric D. Bloch, Jeffrey R. Long, Leslie Murray
Принадлежит: UNIVERSITY OF CALIFORNIA

Fe 2 (dobdc) has a metal-organic framework with a high density of coordinatively-unsaturated Fe II centers lining the pore surface. It can be effectively used to separate O 2 from N 2 and in a number of additional separation applications based on selective, reversible electron transfer reactions. In addition to being an effective O 2 separation material, it can be used for many other processes, including paraffin/olefin separation, nitric oxide/nitrous oxide separation, acetylene storage, and as an oxidation catalyst.

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Номер записи: 3
16-05-2013 дата публикации

CARBOCATALYSTS FOR CHEMICAL TRANSFORMATIONS

Номер: US20130123514A1
Автор: Bielawski Christopher W., Dreyer Daniel R., Jia Hong-Peng
Принадлежит: GRAPHEA, INC.

The disclosure relates to catalytically active carbocatalysts, e.g., a graphene oxide or graphite oxide catalyst suitable for use in a variety of chemical transformations. In one embodiment, it relates to a method of catalyzing a chemical reaction of an organic molecule by reacting the organic molecule in the presence of a sufficient amount of graphene oxide or graphite oxide for a time and at a temperature sufficient to allow catalysis of a chemical reaction. According to other embodiments, the reaction may be an oxidation reaction, a hydration reaction, a dehydrogenation reaction, a condensation reaction, or a polymerization reaction. Some reactions may include auto-tandem reactions. The disclosure further provides reaction mixtures containing an organic molecule and graphene oxide or graphite oxide in an amount sufficient to catalyze a reaction of the organic molecule. 1. A method for chemically transforming an organic compound , comprising:(a) contacting the organic compound with a catalytically active carbocatalyst having a surface terminated with one or more peroxide, hydroxyl, aldehyde, or carboxylic acid groups; and(b) transforming the organic compound with the aid of the catalytically active carbocatalyst to form a mixture of a reaction product and a spent or partially spent carbocatalyst.2. The method of claim 1 , wherein the catalytically active carbocatalyst is an oxidized form of graphite.3. The method of claim 2 , wherein the catalytically active carbocatalyst is graphene oxide or graphite oxide.4. The method of claim 1 , wherein the catalytically active carbocatalyst is an oxidized carbon-containing material.5. The method of claim 1 , wherein the catalytically active carbocatalyst is characterized by one or more FT-IR features at about 3150 cm claim 1 ,1685 cm claim 1 , 1280 cm claim 1 , or 1140 cm.629-. (canceled)30. The method of claim 1 , wherein the organic compound has at least one sp-hybridized C—H bond claim 1 , and the transformation involves ...

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Номер записи: 4
16-05-2013 дата публикации

METHOD FOR SYNTHESIZING DIKETOPYRACENE

Номер: US20130123545A1
Автор: Hashimoto Masashi, Ohrui Hiroki, Tagami Kei
Принадлежит: CANON KABUSHIKI KAISHA

Diketopyracene is synthesized in high yield without using carbon disulfide as a solvent. A special solvent is used. In particular, a solvent having a benzene ring that has two or more chlorine atoms is used. The two chlorine atoms are not in meta positions but in ortho positions of the benzene ring. 2. The method according to claim 1 , wherein the solvent is one of 1 claim 1 ,2 claim 1 ,4-trichlorobenzene and orthodichlorobenzene.3. The method according to claim 1 , wherein aluminum bromide is used in an amount larger than the equivalent of acenaphthene and the equivalent of oxalyl bromide.4. The method according to claim 1 , wherein the amount of aluminum bromide used is 2.5 to 4.0 equivalents per equivalent of acenaphthene used and the amount of oxalyl bromide used is 1.0 to 2.0 equivalents per equivalent of acenaphthene. The present invention relates to a method for synthesizing diketopyracene without using carbon disulfide as a solvent.Diketopyracene is represented by a structural formula below. Diketopyracene may hereinafter referred to as “compound 1”.In synthesizing diketopyracene, carbon disulfide is used as a solvent (NPL 1). In order to obtain diketopyracene, aluminum chloride or aluminum bromide is used as a catalyst. In NPL 1, carbon disulfide that can dissolve these catalysts is used as a solvent.Since the flash point of carbon disulfide is −30° C., solvents other than carbon disulfide should be used in the industrial production of diketopyracene.Moreover, according to the synthetic method disclosed in NPL 1, stirring stops during the reaction and the yield is as low as 17%.It is desirable to provide a method for synthesizing diketopyracene from acenaphthene in the presence of aluminum bromide, oxalyl bromide, and a solvent. The solvent is a liquid that dissolves aluminum bromide, oxalyl bromide, and acenaphthene and is represented by general formula (1):In general formula (1), Xto Xeach independently denote a hydrogen atom, a chlorine atom, a fluorine ...

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Номер записи: 5
23-05-2013 дата публикации

Production of renewable aromatic compounds

Номер: US20130130345A1
Автор: David A. Sikkenga, Wendy Thai, Will SCHROEDER
Принадлежит: JNF BIOCHEMICALS LLC

The invention provides a process for producing a variety renewable aromatic compounds such as benzene, toluene, xylenes, and cumene, as well as compounds derived from these including, for example, aniline, benzoic acid, cresol, cyclohexane, cyclohexanone, phenol and bisphenol A, toluene di-isocyanate, isophthalic acid, phthalic anhydride, terephthalic acid and dimethyl terephthalate. The invention also provides for renewable forms of these aromatic compounds.

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Номер записи: 6
04-07-2013 дата публикации

Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, and process for producing unsaturated aldehyde and/or unsaturated carboxylic acid using the catalyst

Номер: US20130172615A1
Автор: Naohiro Fukumoto, Tomoatsu Kawano, Yutaka Takahashi
Принадлежит: NIPPON SHOKUBAI CO LTD

Provided is a catalyst for production of unsaturated aldehyde and/or unsaturated carboxylic acid, which shows excellent mechanical strength and low attrition loss and is capable of producing the object product(s) at a high yield. The catalyst comprises a catalytically active component containing molybdenum, bismuth and iron as the essential ingredients, and inorganic fibers, and is characterized in that the inorganic fibers contain at least an inorganic fiber having an average diameter of at least 8 μm and another inorganic fiber having an average diameter not more than 6 μm.

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Номер записи: 7
04-07-2013 дата публикации

METHODS FOR USING ALLYLIC OXIDATION CATALYSTS TO PERFORM OXIDATION REACTIONS

Номер: US20130172625A1
Автор: Edwards Jennifer K., Hutchings Graham J., Miedziak Peter, Tarbit Brian
Принадлежит:

Methods for using ailylic oxidation catalysts to perform oxidation reactions. In an exemplary method for catalyzing an ailylic oxidation reaction of the present disclosure, the method comprises the step of catalyzing an oxidation of an ailylic compound using an ailylic oxidation catalyst. In at least one embodiment, the ailylic oxidation catalyst comprises palladium, gold, and titanium, In an exemplary embodiment, the ailylic oxidation catalyst comprises 2.5% Aυ÷2.5% Pd/TiO. 147-. (canceled)48. A method for catalyzing an allylic oxidation reaction , the method comprising the step of catalyzing an oxidation of an allylic compound using an allylic oxidation catalyst wherein the allylic oxidation catalyst comprises a catalyst selected from the group consisting of 2.5% Au+2.5% Pd/TiO , 1.00% Au+1.0% Pd/TiO , 1.0% Au+2.0% Pd/TiO , 3.0% Au+3.0% Pd/TiO , 4.0% Au+4.0% Pd/TiO , 5.0% Au+5.0% Pd/TiO , 2.0% Au+3.0% Pd/TiO , 3.0% Au+2.0% Pd/TiO , 1.0% Au+4.0% Pd/TiO , 4.0% Au+1.0% Pd/TiO , 2.0% Au+2.5% Pd/TiO , 2.5% Au+2% Pd/TiO , 2.5% Au+2.5% Pd/AlO , 2.5% Au+2.5% Pd/SiO , 2.5% Au+2.5% Pd/FeO , 2.5% Au+2.5% Pd/C , 2.5% Au/TiO , 2.5% Au/AlO , 2.5% Au/SiO , 2.5% Au/FeO , 2.5% Au/C , 2.5% Pd/TiO , 2.5% Pd/AlO , 2.5% Pd/SiO , 2.5% Pd/FeO , and 2.5% Pd/C.49. The method of claim 48 , wherein the allylic oxidation catalyst comprises (a) gold and/or palladium claim 48 , and (b) titanium claim 48 , aluminum claim 48 , silicon claim 48 , iron claim 48 , and/or carbon.50. The method of claim 48 , wherein the allylic oxidation catalyst is free from chromium-based and copper-based oxidants.51. The method of claim 48 , wherein the allylic compound comprises a first compound selected from the group consisting of α-pinene claim 48 , valencene claim 48 , isophorone claim 48 , and guaiene and wherein the allylic oxidation catalyst catalyzes an oxidation of the first compound to to form at least one oxidized version of the first compound.52. The method of claim 51 , wherein the at least one ...

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Номер записи: 8
18-07-2013 дата публикации

Oxidation Catalyst for Hydrocarbon Compound, and Method and Apparatus for Producing Oxide of Hydrocarbon Compound Using Same

Номер: US20130184494A1
Автор: Joji Funatsu, Junichi Kugimoto, Kazunori Kurosawa, Naoya Katagiri
Принадлежит: USE Ind Ltd

According to the first embodiment of the present invention, an oxide of a hydrocarbon compound can be produced with high yield and high productivity by oxidizing the hydrocarbon compound with molecular oxygen in the co-presence of an N-hydroxy compound, such as methyl ethyl ketone or N-hydroxysuccinimide, and a phosphate ester, such as dibutyl phosphate. According to another embodiment of the present invention, an oxide of a hydrocarbon compound can be produced with high yield by using an oxidation catalyst that comprises an oxime compound, such as methyl ethyl ketone. According to another embodiment of the present invention, an alcohol and/or a ketone can be produced with high yield by oxidizing the hydrocarbon compound at a temperature of 160° C. or less, and by decomposing the resulting hydroperoxide, for example, in a unit having an inner surface formed by a material from which no transition metal ion is generated.

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Номер записи: 9
08-08-2013 дата публикации

"OXIDATION OF HYDROCARBONS"

Номер: US20130203984A1
Автор: Becker Christopher L., Benitez Franisco M., Dakka Jihad M., Mozeleski Edmund J.
Принадлежит:

In a process for oxidizing a hydrocarbon to a product comprising at least one of the corresponding hydroperoxide, alcohol, ketone, carboxylic acid and dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing compound in at least one oxidation zone in the presence of a catalyst comprising a cyclic imide having an imide group of formula (I): 2. The process of claim 1 , wherein the oxygen-containing compound is air that has been at least partially dehydrated.3. The process of claim 1 , wherein said hydrocarbon comprises an alkane or cycloalkane.4. The process of claim 1 , wherein said hydrocarbon comprises isobutane or cyclohexane.5. The process of claim 1 , wherein said hydrocarbon comprises cyclohexane claim 1 , the product comprises cyclohexanol and the process further comprises converting the cyclohexanol to adipic acid.6. The process of claim 1 , wherein said hydrocarbon comprises cyclohexane claim 1 , the product comprises cyclohexanone and the process further comprises converting the cyclohexanone to caprolactam.7. The process of claim 1 , wherein said hydrocarbon comprises iso-butane claim 1 , the product comprises tert-butyl hydroperoxide and the process further comprises using the tert-butyl hydroperoxide as an oxidation catalyst.9. The process of claim 8 , wherein said alkylaromatic compound of general formula (II) is selected from ethyl benzene claim 8 , cumene claim 8 , sec-butylbenzene claim 8 , sec-pentylbenzene claim 8 , p-methyl-sec-butylbenzene claim 8 , 1 claim 8 ,4-diphenylcyclohexane claim 8 , sec-hexylbenzene claim 8 , and cyclohexylbenzene.10. The process of claim 8 , and further comprising cleaving the hydroperoxide to produce phenol or a substituted phenol.13. The process of claim 1 , wherein said cyclic imide comprises N-hydroxyphthalimide.14. The process of claim 1 , wherein said oxygen-containing compound supplied to said oxidation zone has a water content of less than or equal to 0.3% by weight of the oxygen-containing ...

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Номер записи: 10
08-08-2013 дата публикации

METHOD FOR PRODUCING CATALYST

Номер: US20130204030A1
Автор: Kawato Seiichi, Kondo Masahide, Kuroda Toru, NAITOU Hiroyuki, Nitta Masanori
Принадлежит: MITSUBISHI RAYON CO., LTD.

Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed. 1. A method for producing an unsaturated aldehyde and an unsaturated carboxylic acid through gas-phase catalytic oxidation of propylene , isobutylene , tertiary butyl alcohol , or methyl tertiary butyl ether with molecular oxygen , which method comprises conducting said gas-phase catalytic oxidation in the presence of a catalyst comprising molybdenum , bismuth , and iron , and produced by a process comprising:(1) a washing step consisting of the following (a) and (b):(a) washing a surface of at least one device equipped in an apparatus for the production of the catalyst, to which a solid matter including molybdenum, bismuth and iron adheres, with a basic solution having a basic substance concentration of 1 to 6% by mass; and(b) sequentially washing the surface of the device, which was washed with the basic solution, only with water to remove the basic solution; and(2) a step of producing the catalyst with the apparatus for the production of catalyst thus washed.2. A method for producing an unsaturated nitrile through gas-phase catalytic ammoxidation of propylene , isobutylene , or tertiary butyl alcohol with molecular oxygen and ammonia , which method comprises conducting said gas-phase catalytic ammoxidation in the presence of a catalyst comprising molybdenum , bismuth , and iron ...

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Номер записи: 11
08-08-2013 дата публикации

Process for the oxidation of hydrocarbons

Номер: US20130204038A1
Автор: Françoise Igersheim, Serge Veracini, Sophie Galinat
Принадлежит: Rhodia Operations SAS

A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.

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Номер записи: 12
22-08-2013 дата публикации

SHIP1 MODULATORS AND RELATED METHODS

Номер: US20130217674A1
Автор: Andersen Raymond, Meimetis Labros George, Nodwell Matthew Bruce, Wang Xiaoxia
Принадлежит: The University of British Columbia

Compounds of structure (I): including stereoisomers and pharmaceutically acceptable salts thereof, wherein R, Rand A are as defined herein are disclosed. Such compounds have enhanced water solubility and have activity as SHIP1 modulators, and thus may be used to treat any of a variety of diseases, disorders or conditions that would benefit from SHIP1 modulation. Enantioselective methods for preparation of compounds of structure (I), compositions comprising a compound of structure (I) in combination with a pharmaceutically acceptable carrier or diluents and methods of SHIP1 modulation by administration of such compounds to an animal in need thereof are also disclosed. 19. A composition comprising a compound of in combination with a pharmaceutically acceptable carrier or diluent.20. A method for modulating SHIP1 comprising administering an effective amount of a composition of to an animal in need thereof.21. A method for treating a disease claim 19 , disorder or condition comprising administering an effective amount of a composition of to an animal in need thereof claim 19 , where the disease claim 19 , disorder or condition is an autoimmune disease claim 19 , disorder or condition claim 19 , an inflammatory disease claim 19 , disorder or condition claim 19 , or a neoplastic or cell proliferative disease claim 19 , disorder or condition.22. The method of wherein the disease claim 21 , disorder or condition is an autoimmune disease claim 21 , disorder or condition selected from idiopathic pulmonary fibrosis claim 21 , an inflammatory bowel disease claim 21 , rheumatoid arthritis claim 21 , Still's Disease claim 21 , Sjögren's Syndrome claim 21 , systemic lupus erythematosus claim 21 , and systemic sclerosis.23. The method of claim 22 , wherein the disease claim 22 , disorder or condition is an inflammatory bowel disease selected from Crohn's Disease and ulcerative colitis.24. The method of wherein the disease claim 21 , disorder or condition is an inflammatory disease ...

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Номер записи: 13
05-09-2013 дата публикации

SYNTHESIS OF Z-OLEFIN-CONTAINING LEPIDOPTERAN INSECT PHEROMONES

Номер: US20130231499A1
Автор: GRUBBS Robert H., HERBERT MYLES B., Marx Vanessa M., WICKENS ZACHARY K.
Принадлежит:

The present invention is directed to methods of synthesizing insect pheromones, particularly lepidopteran insect pheromones, their precursors and derivatives from inexpensive, readily available starting materials using olefin metathesis catalysis. 2. The method of claim 1 , wherein Xis halide claim 1 , nitrate claim 1 , alkyl claim 1 , aryl claim 1 , alkoxy claim 1 , alkylcarboxylate claim 1 , aryloxy claim 1 , alkoxycarbonyl claim 1 , aryloxycarbonyl claim 1 , arylcarboxylate claim 1 , acyl claim 1 , acyloxy claim 1 , alkylsulfonato claim 1 , arylsulfonato claim 1 , alkylsulfanyl claim 1 , arylsulfanyl claim 1 , alkylsulfinyl claim 1 , or arylsulfinyl.3. The method of claim 2 , wherein Xis a carboxylate claim 2 , nitrate claim 2 , phenoxide claim 2 , bromide claim 2 , chloride claim 2 , iodide claim 2 , sulfoxide claim 2 , or nitrite.4. The method of claim 1 , wherein Ris an optionally substituted alkylene claim 1 , optionally substituted heteroatom-containing alkylene claim 1 , optionally substituted cycloalkylene claim 1 , optionally substituted heteroatom-containing cycloalkylene claim 1 , optionally substituted aryl claim 1 , or optionally substituted heteroaryl.5. The method of claim 4 , wherein Ris an optionally substituted cycloalkylene or optionally substituted aryl.6. The method of claim 1 , wherein Ris an optionally substituted cycloalkylene claim 1 , an optionally substituted heteroatom-containing cycloalkylene claim 1 , an optionally substituted aryl claim 1 , or an optionally substituted heteroaryl and Ris an optionally substituted cycloalkyl claim 1 , an optionally substituted heteroatom-containing cycloalkyl claim 1 , an optionally substituted aryl claim 1 , or an optionally substituted heteroaryl.7. The method of claim 1 , wherein Ris an optionally substituted cycloalkylene and Ris a substituted aryl group.8. The method of claim 1 , wherein Ris an optionally substituted adamantylene group or a substituted C-Ccycloalkylene group.9. The method of or ...

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Номер записи: 14
03-10-2013 дата публикации

Dehydrogenation of alkanols to increase yield of aromatics

Номер: US20130261361A1
Автор: Li Yuan, Matt VAN STRATEN, Paul G. Blommel, Randy D. Cortright, Warren Lyman
Принадлежит: Virent Inc

The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting alkanols to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.

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Номер записи: 15
07-11-2013 дата публикации

ENVIRONMENTALLY-FRIENDLY NEW OXIDATION PROCESS FOR CONVERTING ARYL-1,2-DIOL TO KETONE

Номер: US20130296611A1
Автор: Chen Ting, Wang Yu
Принадлежит:

The present invention relates to the technical field of radiation curing photopolymerization initiator, and particularly to an environmentally-friendly new oxidation process for converting several specific aryl-1,2-diol compounds to corresponding arylhydroxyketones. 1. A process for oxidizing a diol compound into a ketone , comprising the following steps of: mixing said diol compound with bromine in an organic solvent; adding water into the mixture when said ketone having been formed , organic layer and aqueous layer being formed; separating organic solution and aqueous solution from said organic layer and said aqueous layer , respectively; purifying said ketone from said organic solution.2. The process for oxidizing a diol compound into a ketone according to claim 1 , wherein said process further comprises: recovering said bromine from said aqueous solution by adding HO.3. The process for oxidizing a diol compound into a ketone according to claim 1 , wherein said diol compound is selected from the group consisting of 2-methyl-1-phenyl-1 claim 1 ,2-propanediol claim 1 , α-(1-hydroxycyclohexyl)-benzene-methanol claim 1 , and 1-(4-methoxyphenyl)-2-methyl-1 claim 1 ,2-propanediol.4. The process for oxidizing a diol compound into a ketone according to claim 1 , wherein said ketone is selected from the group consisting of 2-hydroxy-2-methyl-1-phenyl-1-propanone claim 1 , (1-hydroxycyclohexyl)phenyl-methanone and 2-hydroxy-1-(4-methoxyphenyl)-2-methyl-1-propanone.5. The process for oxidizing a diol compound into a ketone according to claim 1 , wherein the temperature of reaction is preferably between 10 and 40° C.6. The process for oxidizing a diol compound into a ketone according to claim 1 , wherein said organic solvent consists of preferably halogenated hydrocarbons.7. A process for oxidizing a diol compound into a ketone claim 1 , comprising the following steps of: mixing said diol compound with HOin an organic solvent; adding then bromine or HBr into said solvent; ...

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Номер записи: 16
21-11-2013 дата публикации

Process For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid

Номер: US20130310604A1
Автор: Hashiba Masashi, Kurakami Tatsuhiko, Matsumoto Susumu, Shiraishi Kazuo, SUDO Atsushi
Принадлежит: NIPPONKAYAKU KABUSHIKIKAISHA

There is provided a process for producing aerolein, acrylic acid, methacrolein, methacrylic acid in a safe and steady manner and in high yields, which avoids a phenomenon of occurrence of an abnormal reaction attributable to the fact that the temperature at a raw material gas outlet side becomes considerably higher than the temperature at a raw material gas inlet side, with regard to the temperature of a catalyst packed in a reaction tube at vapor-phase catalytic oxidation of propylene, isobutylene, or the like. 2. The process for producing acrolein and acrylic acid or methacrolein and methacrylic acid according to claim 1 ,wherein N is 3 or less, baking temperature of the catalyst packed in Zin is higher than baking temperature of the catalyst packed in Zout, anda mixture of the catalyst and a molded body of an inactive material is packed in Zin.3. The process for producing acrolein and acrylic acid or methacrolein and methacrylic acid according to claim 1 ,wherein the catalyst is a spherical supported catalyst obtained by supporting an active powder on an inactive material.4. The process for producing acrolein and acrylic acid or methacrolein and methacrylic acid according to claim 1 ,wherein particle diameter of the catalyst packed in each catalyst layer is the same over all the layers. The present invention relates to a process for producing acrolein and acrylic acid by subjecting propylene to vapor-phase catalytic oxidation with molecular oxygen or a gas containing molecular oxygen or a process for producing methacrolein and methacrylic acid by subjecting isobutylene or tertiary butanol to vapor-phase catalytic oxidation with molecular oxygen or a gas containing molecular oxygen.A process for producing a corresponding unsaturated aldehyde and unsaturated carboxylic acid using propylene, isobutylene, or tertiary butanol as a raw material has been industrially widely implemented, but generation of a local high temperature area (hot spot) in the catalyst layer has ...

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Номер записи: 17
28-11-2013 дата публикации

Manganese Oxides and Their Use in the Oxidation of Alkanes

Номер: US20130317272A1
Автор: Helge Jaensch, Wilfried J. Mortier
Принадлежит: ExxonMobil Chemical Patents Inc

Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.

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Номер записи: 18
19-12-2013 дата публикации

SHAPED CATALYST BODY FOR FLOW-THROUGH FIXED-BED REACTORS

Номер: US20130338378A1
Автор: Brandstädter Willi Michael, Estenfelder Marvin, Reitzmann Andreas, Streifinger Leopold
Принадлежит:

The invention relates to a shaped catalyst body for the catalytic conversion of organic and inorganic components in fixed-bed reactors, wherein the shaped catalyst body is formed as cylinder with a base, a cylinder surface, a cylinder axis and at least one continuous opening running parallel to the cylinder axis, and the base of the cylinder has at least four corners. 115-. (canceled)16100200300400150152154160110120130140210220230240310320330340410420430440. A shaped catalyst body for the catalytic conversion of organic and inorganic compounds in fixed-bed reactors , wherein the shaped catalyst body (; ; ; ) is formed as cylinder with a base () , a cylinder surface () , a cylinder axis () and at least one continuous opening () running parallel to the cylinder axis , and the base of the cylinder has at least four corners ( , , , ; ; , , ; , , , ; , , , ).1710. The shaped catalyst body according to claim 16 , wherein a geometric base body enclosing the shaped catalyst body is a prism () which has a prism base with a length and a width claim 16 , wherein the length is greater than the width.18172170. The shaped catalyst body according to claim 16 , wherein a recess () is provided in the cylinder surface between two adjacent corners claim 16 , and/or a protrusion () is provided in the cylinder surface between two adjacent corners.19160. The shaped catalyst body according to claim 16 , wherein the shaped catalyst body has an opening () running parallel to the cylinder axis and/or four corners; and/orwherein the shaped catalyst body has two recesses arranged opposite each other and/or two protrusions arranged opposite each other.20. The shaped catalyst body according to claim 16 , wherein the shaped catalyst body has a ratio of the geometric surface area of the shaped catalyst body to the volume of the shaped catalyst body of from 1 to 1.8 mm; and/orwherein at least one element selected from the corners, the recess, the recesses, the protrusion and the protrusions is ...

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Номер записи: 19
23-01-2014 дата публикации

Catalyst, Method of Manufacture and Use Thereof

Номер: US20140024525A1
Автор: Bartley Jonathan Keith, Dummer Nicholas Francois, Hutchings Graham John, Lin Zhonjie, Taylor Stuart Hamilton
Принадлежит:

A catalyst is provided, the catalyst comprising rods having mean length of 100 microns or less, the rods comprising a metal molybdate or tungstate, the metal being selected from the group consisting of iron, manganese, nickel, chromium, vanadium, aluminium, silver, titanium, copper, bismuth, and cobalt. A method of making such a catalyst is also provided. 1. A catalyst comprising rods having a mean length of 100 microns or less , the rods comprising a metal molybdate or tungstate.2. A catalyst according to wherein the rods comprise islands of metal molybdate or tungstate which project from the rod.3. A catalyst according to wherein the islands have a mean greatest dimension of from 10 to 100 nm and the mean density of said islands is from 20 to 100 islands per rod.4. (canceled)5. (canceled)6. A catalyst according to wherein said metal is selected from the group consisting of iron claim 1 , manganese claim 1 , bismuth claim 1 , copper claim 1 , nickel claim 1 , chromium claim 1 , vanadium claim 1 , aluminium claim 1 , silver claim 1 , titanium and cobalt.7. (canceled)8. (canceled)9. (canceled)10. A catalyst according to wherein the rods have a mean greatest dimension in a direction normal to the length of the rod of at least 0.1 microns.11. (canceled)12. A catalyst according to wherein the ratio of the mean length of the rods to the mean greatest dimension in a direction normal to the length of the rod is from 3:1 to 100:1.13. (canceled)14. A catalyst according to comprising a further metal catalyst claim 1 , wherein the further metal catalyst is provided as a metal molybdate or metal oxide.15. (canceled)16. A catalyst according to wherein the catalyst has a mean surface area of at least 5 mg.17. A catalyst according to having a mean surface area of at least 10 mgand wherein the metal molybdate or tungstate is iron molybdate or tungstate claim 16 , and wherein the molar ratio of iron to molybdenum in the rods is from 0.01:1 to 0.3:1.18. (canceled)19. A catalyst ...

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Номер записи: 20
06-02-2014 дата публикации

PROCESS AND INTERMEDIATES FOR PREPARING INTEGRASE INHIBITORS

Номер: US20140039194A1
Автор: DOWDY Eric D., FU Wenyi, MACLEOD Patricia, PCION Dominika, TOMASI Carrie, WHITCOMB Mark Charles
Принадлежит: Gilead Sciences, Inc.

The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties. 6. The method of wherein the compound of formula 5 is acylated with an acetyl halide.7. The method of wherein the acylation is carried out in the presence of a Lewis acid.8. The method of wherein the Lewis acid is aluminum trichloride.10. The method of wherein R is ethyl.11. The method of wherein the compound of formula 8 is acylated with diethyl carbonate.12. The method of wherein the acylation utilizes a base.13. The method of wherein the base is a metal alkoxide.16. The method of wherein Rand Rare each methyl.20. The method of wherein converting the compound of formula 8 to the compound of formula 13 or the salt thereof comprises the method described in .21. The method of wherein converting the compound of formula 8 to the compound of formula 13 or the salt thereof comprises the method described in . This application claims priority to and the benefit under 35 U.S.C. 119(e) of U.S. Provisional Application No. 61/679,475, filed on Aug. 3, 2012, the disclosure of which is hereby incorporated by reference in its entirety.International Patent Application Publication Number WO 2004/046115 provides certain 4-oxoquinolone compounds that are useful as HIV integrase inhibitors. The compounds are reported to be useful as anti-HIV agents.International Patent Application Publication Number WO 2005/113508 provides certain specific crystalline forms of one of these 4-oxoquinolone compounds (i.e. 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinolone-3-carboxylic acid). The specific crystalline forms are reported to have superior physical and chemical stability compared to other physical forms of the compound.International Patent Application WO2009/036161 and International Patent Application WO2008/033836 describe methods for preparing the 4-oxoquinolone ...

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Номер записи: 21
13-02-2014 дата публикации

PROCESS FOR CHARGING A LONGITUDINAL SECTION OF A CATALYST TUBE

Номер: US20140046093A1
Автор: Dieterle Martin, Mueller-Engel Klaus Joachim
Принадлежит: BASF SE

A process for charging a longitudinal section of a catalyst tube with a homogeneous fixed catalyst bed section whose active composition is at least one multielement oxide or comprises elemental silver on an oxidic support body and whose geometric shaped catalyst bodies and shaped inert bodies have a specific inhomogeneity of their longest dimensions. 113-. (canceled)15: A process for heterogeneously catalyzed partial gas phase oxidation of an organic compound in a tube bundle reactor claim 14 , wherein the tube bundle reactor is a tube bundle reactor according to .16: The process according to claim 15 , wherein the heterogeneously catalyzed partial gas phase oxidation is that of propylene to acrolein and/or that of acrolein to acrylic acid.17. (canceled)18: A tube bundle reactor comprising at least one catalyst tube which has been charged by a process for charging a catalyst tube with a fixed catalyst bed which consists of a plurality of successive and mutually different catalytically active fixed catalyst bed sections claim 15 , each of which is intrinsically homogeneous claim 15 , and where the active composition of all fixed catalyst bed sections comprises at least one multielement oxide which comprisesa) the elements Mo, Fe and Bi, orb) the elements Mo and V, orc) the element V and additionally P and/or Sb,{'sup': i', 'i', 'i, 'or whose active composition comprises elemental silver on an oxidic support body, and the individual fixed catalyst bed section consists of a single type Sor of a homogenized mixture of a plurality of mutually distinguishable types Sof geometric shaped catalyst bodies and geometric shaped inert bodies, wherein, in each individual fixed catalyst bed section, all types Sof geometric shaped bodies present therein in each case satisfy the proviso M that'}{'sup': i', 'i, 'sub': 's', 'claim-text': {'br': None, 'i': ·D', '≦L', '·D, 'sub': s', 's', 's, 'sup': i', 'i', 'i, '0.98≦1.02,'}, 'from 40 to 70% of the total number of geometric shaped ...

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Номер записи: 22
13-02-2014 дата публикации

Catalytic Conversion Of Alcohols To Aldehydes Or Ketones

Номер: US20140046098A1
Автор: Melvin K. Carter
Принадлежит: Carter Technologies

Catalytic reactions are taught using air or oxygen for oxidative chemical conversion of primary alcohols to aldehydes and for secondary alcohols to ketones in a vapor phase at ambient pressure. The catalytic process converts ethanol to acetaldehyde, n-propanol to propionaldehyde, 2-propanol to acetone, and other alcohols to aldehydes and ketones. The catalysts are based on molecular strings of di-, tri- and/or poly-groups of transition metal complexes possessing a specific degree of symmetry. Laboratory results have demonstrated [vanadium (II)] 2 , [chromium (II)] 2 , [manganese (II)] 2 , [cobalt (II)] 2 oxalate and symmetric transition metal catalysts to be effective for oxidative catalytic conversion of primary alcohols to products comprising related aldehydes and secondary alcohols to products comprising ketones.

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Номер записи: 23
03-04-2014 дата публикации

Plate-type reactor with in-situ injection

Номер: US20140094617A1
Автор: Jean-Luc Dubois
Принадлежит: Arkema France SA

A chemical reactor including: a plurality of heat exchange plates which between them define reaction compartments, in which reactor each heat exchange plate includes two walls between them defining at least one heat exchange space, the respective walls being fixed together by joining regions, and the reactor also comprises at least one injection device for injecting substance into the reaction compartments, said substance-injection device passing through the heat-exchange plates in respective joining regions thereof. Also, a chemical reaction process that can be carried out in this reactor.

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Номер записи: 24
07-01-2021 дата публикации

METHOD FOR PRODUCING CARBONYL COMPOUND

Номер: US20210002199A1
Автор: Higashi Masahiro, ISHIHARA Sumi, KISHIKAWA Yosuke, Yoneda Satoru
Принадлежит: DAIKIN INDUSTRIES, LTD.

A method for producing a carbonyl compound represented by formula (1): 2. The production method according to claim 1 , wherein Rand Rare independently hydrogen claim 1 , Calkyl optionally having at least one substituent claim 1 , Caromatic group optionally having at least one substituent claim 1 , or a Cheterocyclic group optionally having at least one substituent.3. The production method according to claim 2 , wherein Rand Rare independently hydrogen; Calkyl optionally having at least one substituent claim 2 , wherein the at least one substituent is independently selected from the group consisting of hydroxyl claim 2 , amino claim 2 , carboxyl claim 2 , sulfonic acid claim 2 , phosphonic acid claim 2 , and salts thereof claim 2 , a Caromatic group optionally having at least one substituent; or a Cheterocyclic group optionally having at least one substituent.4. The production method according to claim 1 , wherein Ris hydrogen; Calkyl optionally having at least one substituent; a Caromatic group optionally having at least one substituent; or a Cheterocyclic group optionally having at least one substituent.5. The production method according to claim 4 , wherein Ris hydrogen; Calkyl optionally having at least one substituent claim 4 , wherein the at least one substituent is independently selected from the group consisting of hydroxyl claim 4 , amino claim 4 , carboxyl claim 4 , sulfonic acid claim 4 , phosphonic acid claim 4 , and salts thereof claim 4 , a Caromatic group optionally having at least one substituent; or a Cheterocyclic group optionally having at least one substituent.6. The production method according to claim 1 , wherein the non-alcohol organic solvent (a) is at least one solvent selected from the group consisting of amide solvents claim 1 , ether solvents claim 1 , nitrile solvents claim 1 , sulfoxide solvents claim 1 , aromatic solvents claim 1 , ester solvents claim 1 , ketone solvents claim 1 , fluorine-based solvents claim 1 , carbonate solvents ...

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Номер записи: 25
13-01-2022 дата публикации

CATALYST BED COMPRISING SILVER CATALYST BODIES AND PROCESS FOR THE OXIDATIVE DEHYDROGENATION OF OLEFINICALLY UNSATURATED ALCOHOLS

Номер: US20220008884A1
Автор: DUYCKAERTS Nicolas, KAMASZ Martin, WALSDORFF Christian
Принадлежит:

The present invention relates to a catalyst bed comprising silver catalyst bodies and a reactor comprising such a catalyst bed. Further, the invention relates to the use of the catalyst bed and the reactor for gas phase reactions, in particular for the oxidative dehydrogenation of organic compounds under exothermic conditions. In a preferred embodiment, the present invention relates to the preparation of olefinically unsaturated carbonyl compounds from olefinically unsaturated alcohols by oxidative dehydrogenation utilizing a catalyst bed comprising metallic silver catalyst bodies. 118.-. (canceled)19. A process for the preparation of an olefinically unsaturated carbonyl compound in a tubular reactor comprising a plurality of reactor tubes , comprising reacting an olefinically unsaturated alcohol with oxygen in the presence of a catalyst bed , comprising full-metallic silver catalyst bodies , wherein the catalyst bed has a packing density of the full-metallic silver catalyst bodies in the range of 3.0 g/cmto 10.0 g/cm.20. The process according to claim 19 , wherein the catalyst bed has a packing density of the full-metallic silver catalyst bodies in the range of 5.5 g/cmto 10.0 g/cm.21. The process according to claim 19 , wherein the catalyst bed has a void space ratio in the range of 5% to 70% claim 19 , based on the volume of the catalyst bed not occupied by the catalyst bodies per volume of the catalyst bed.22. The process according to claim 19 , wherein the full-metallic silver catalyst bodies have a mean particle size of 0.5 mm to 5.0 mm.23. The process according to claim 19 , wherein the full-metallic silver bodies have a cylindrical shape or spherical shape or sphere-like shape or combinations thereof.24. The process according to claim 19 , wherein the full-metallic silver bodies have a geometric surface area in the range of 100 mm/g to 600 mm/g.25. The process according to claim 19 , wherein the catalyst bed is located in a tube reactor.26. The process ...

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Номер записи: 26
14-01-2016 дата публикации

Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same

Номер: US20160009621A1
Автор: Richard Blair
Принадлежит: University of Central Florida Research Foundation Inc UCFRF

The presently disclosed and/or claimed inventive concept(s) relates generally to oxidative oxidized reaction products made from the mechanocatalytic oxidative depolymerization of lignin. More particularly, but without limitation, the mechanocatalytic oxidative depolymerization of lignin is performed in a non-aqueous/non-solvent based and solvent-free process, i.e., via a solid-solid mechanocatalytic oxidative reaction methodology. In one particular embodiment, the process of making such oxidative oxidized reaction products includes, without limitation, the step of mechanocatalytically reacting an oxidation catalyst with lignin or a lignin-containing material. The oxidative reaction products obtained from the process include, for example, at least one of vanillin, and syringealdehyde, vanillic acid, and syringic acid.

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Номер записи: 27
08-01-2015 дата публикации

OXIDATION OF CYCLOALKANES IN THE PRESENCE OF A SUPPORTED BIMETALLIC GOLD-PALLADIUM CATALYST

Номер: US20150011797A1
Автор: Hutchings Graham, Liu Xi, Whiston Keith
Принадлежит: INVISTA NORTH AMERICA S.A R.L.

The present invention relates to a process for the oxidation of cycloalkanes utilising a supported gold and palladium catalyst and the use of the supported gold and palladium catalyst for the oxidation of cycloalkanes. Also described is a process for the preparation of the supported catalyst. 1. An oxidation process for preparing cycloalkanol(s) and/or cycloalkanone(s) comprising contacting one or more cycloalkane(s) with an oxidant in the presence of a supported catalyst wherein the oxidant is an oxygen-containing gas and the supported catalyst comprises a catalyst comprising gold-palladium particles and a support selected from carbides , nitrides and oxides , wherein the oxides are selected from magnesium , aluminium and zinc oxides.2. A process for oxidising cycloalkanes comprising contacting one or more cycloalkane(s) with an oxidant in the presence of the supported catalyst wherein the oxidant is an oxygen-containing gas and the supported catalyst comprises a catalyst comprising gold-palladium particles and a support selected from carbides , nitrides and oxides , wherein the oxides are selected from magnesium , aluminium and zinc oxides.3. (canceled)4. (canceled)5. The process according to claim 1 , wherein the gold-palladium particles are nanoparticles exhibiting a mean longest diameter of no more than 200 nm.6. The process according to claim 1 , wherein the molar ratio of gold to palladium is in the range from about 1:15 to about 15:1.7. The process according to claim 1 , wherein the support is selected from carbides and nitrides.8. The process according to claim 1 , wherein the support is a carbide support selected from BC claim 1 , MoC claim 1 , ZrC claim 1 , WC claim 1 , SiC and TiC.9. The process according to claim 1 , wherein the support is a nitride support selected from BN claim 1 , CN claim 1 , AlN and SiN.10. The process according to claim 1 , wherein the support is an oxide support selected from MgO claim 1 , AlO claim 1 , ZnO claim 1 , and MgAlO.11 ...

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Номер записи: 28
09-01-2020 дата публикации

PROCESS FOR THE PREPARATION OF ALPHA, BETA UNSATURATED ALDEHYDES BY OXIDATION OF ALCOHOLS IN THE PRESENCE OF A LIQUID PHASE

Номер: US20200010393A1
Автор: BAUER Stefan, BOSCH Marco, BRAUNSMANN Kirsten, FENYN Michaela, Keller Andreas, LUENSE Vera, Teles Joaquim Henrique, UFER Andreas Jörg, Vautravers Nicolas, ZAKZESKI Joseph John
Принадлежит:

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols in the presence of a liquid phase wherein the liquid phase contains 0.1 to less than 25 weight-% water and wherein the liquid phase contains at least 25 weight-% of alcohol(s) of general formula (II) and alpha, beta unsaturated aldehyde(s) of general formula (I) and wherein the oxidant is oxygen and/or hydrogen peroxide. 111.-. (canceled)13. The process according to claim 12 , wherein the alcohol according to formula (II) is used claim 12 , wherein R claim 12 , Ror R claim 12 , independently of one another claim 12 , are selected from H and CH.14. The process according to claim 12 , wherein the alcohol according to formula (II) is used claim 12 , wherein Ris H and Rand Rare CH.15. The process according to claim 12 , wherein the liquid phase contains 0.5 to 20 weight-% claim 12 , water based on the total weight of the liquid phase.16. The process according to claim 12 , wherein the liquid phase contains 1.0 to 15 weight-% water based on the total weight of the liquid phase.17. The process according to claim 12 , wherein the liquid phase contains less than 75 weight-% solvent based on the total weight of the liquid phase.18. The process according to claim 12 , wherein the liquid phase contains less than 50 weight-% based on the total weight of the liquid phase.19. The process according to claim 12 , wherein the liquid phase contains less than 10 weight-% solvent based on the total weight of the liquid phase.20. The process according to wherein the liquid phase contains at least 30 weight-% of alcohols of general formula (II) and alpha claim 12 , beta unsaturated aldehydes of general formula (I) claim 12 , based on the total weight of the liquid phase.21. The process according to wherein the liquid phase contains at least 70 weight-% of alcohols of general formula (II) and alpha claim 12 , beta unsaturated aldehydes of general formula (I) claim 12 , based on the total weight of ...

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Номер записи: 29
03-02-2022 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Номер: US20220033332A1
Автор: Carlos A. Cruz, Jared L. BARR, Kathy S. CLEAR, Masud M. Monwar, Max P. McDaniel, William C. Ellis
Принадлежит: Chevron Phillips Chemical Co LP

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

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Номер записи: 30
15-01-2015 дата публикации

PROCESS FOR PREPARATION OF FINGOLIMOD

Номер: US20150018578A1
Автор: Bhirud Shekhar, Chand Prem, Gharpure Milind, Narawade Krishna
Принадлежит: Glenmark Generics Limited

The present invention provides a process for preparation of fingolimod, a compound of Formula I or a pharmaceutically acceptable salt thereof, free of regioisomeric impurity compound of Formula IA 2. A process as claimed in claim 1 , for isolating the compound of Formula IV which is free of its regioisomeric impurity compound of Formula IVA claim 1 , comprising treating the reaction mixture comprising a compound of Formula IV and its corresponding regioisomer a compound of Formula IVA claim 1 , with a solvent elected from the group consisting of hydrocarbon solvent claim 1 , ester solvent claim 1 , ether solvent or mixtures thereof and isolating the compound of Formula IV which is free of its regioisomer compound of Formula IVA.3. A process as claimed in claim 2 , comprising treating the reaction mixture comprising a compound of Formula IV and its corresponding regioisomer a compound of Formula IVA claim 2 , with a hydrocarbon solvent and isolating the compound of Formula IV which is free of its regioisomer compound of Formula IVA.4. A process as claimed in claim 2 , comprising treating the reaction mixture comprising a compound of Formula IV and its corresponding regioisomer a compound of Formula IVA with a mixture of hydrocarbon solvent and an ester solvent.5. A process as claimed in claim 1 , wherein in step ‘d’ the reducing agent is selected from the group consisting of sodium borohydride claim 1 , lithium aluminum hydride claim 1 , H/catalyst claim 1 , ammonium formate triethylsilane in combination with trifluoroacetic acid.6. A process as claimed in claim 1 , wherein the pharmaceutically acceptable salt is the hydrochloride.7. Use of compound of formula IV claim 2 , free of its regioisomeric impurity compound of Formula IVA claim 2 , prepared by the process as claimed in for the preparation of fingolimod or a pharmaceutically acceptable salt thereof.9. Fingolimod or a pharmaceutically acceptable salt free of regioisomeric impurity compound of Formula IA or ...

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Номер записи: 31
16-01-2020 дата публикации

CATALYST AND CATALYST GROUP

Номер: US20200016577A1
Автор: NAKAMURA Takuya, TANIGUCHI Takanori, TAZAWA Kazuharu
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

An object of the present invention is to provide a catalyst ensuring that when a gas-phase catalytic oxidation reaction of a material substance is conducted using a catalyst to produce a target substance, the pressure loss and coking are suppressed and the target substance can be produced in high yield. The present invention is related to a ring-shaped catalyst having a straight body part and a hollow body part, which is used when a gas-phase catalytic oxidation reaction of a material substance is conducted to produce a target substance, wherein a length of the straight body part is shorter than a length of the hollow body part and at least at one end part, a region from an end part of the straight body part to an end part of the hollow body part is concavely curved. 1. A ring-shaped catalyst having a straight body part and a hollow body part , which is used when a gas-phase catalytic oxidation reaction of an olefin or a tertiary butanol is conducted to produce a corresponding unsaturated aldehyde and/or unsaturated carboxylic acid , wherein:a length of the straight body part is shorter than a length of the hollow body part and at least at one end part, a region from an end part of the straight body part to an end part of the hollow body part is concavely curved.2. A ring-shaped catalyst having a straight body part and a hollow body part , which is used when gas-phase catalytic oxidation of an unsaturated aldehyde is conducted to produce a corresponding unsaturated carboxylic of an unsaturated aldehyde acid , wherein:a length of the straight body part is shorter than a length of the hollow body part and at least at one end part, a region from an end part of the straight body part to an end part of the hollow body part is concavely curved.3. The catalyst according to claim 1 , wherein the straight body part is present between a surface including one end part of the hollow body part and a surface including another end part of the hollow body part.4. The catalyst ...

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Номер записи: 32
26-01-2017 дата публикации

PSEUDO-ISOTHERMAL REACTOR

Номер: US20170021322A1
Автор: BOE Michael, Helbo Hansen Anders, Wix Christian
Принадлежит: Haldor Topsoes A/S

The present disclosure relates in a broad form to a pseudo-isothermal flow reactor () for an exothermal reaction comprising at least two reaction enclosures () and a cooling medium enclosure () configured to hold a cooling medium under pressure at the boiling point of said cooling medium, said reaction enclosures () having an outer surface configured to be in thermal contact with the cooling medium, and each of said reaction enclosures () having an inlet and an outlet with the associated benefit of enabling a two-stage pseudo-isothermal operation while only requiring a single cooling medium enclosure () and only single cooling medium circuit. 1. A pseudo-isothermal flow reactor for an exothermal reaction comprising at least two reaction enclosures and a cooling medium enclosure configured to hold a cooling medium under pressure at the boiling point of said cooling medium , said reaction enclosures having an outer surface configured to be in thermal contact with the cooling medium , each of said reaction enclosures having a reaction enclosure inlet and a reaction enclosure outlet and said cooling medium enclosure having a cooling medium inlet and a cooling medium outlet and each of said inlets and outlets being individually connectable.2. A reactor according to further comprising a catalytically active material inside at least 50% or 80% of the volume of at least one reaction enclosure.3. A reactor according to claim 1 , further comprising an inlet manifold wherein at least one of said first reaction enclosure and said second reaction enclosure comprises a multitude of reaction tubes claim 1 , such as at least 2 claim 1 , 50 claim 1 , 100 or 1000 reaction tubes claim 1 , each tube having a tube inlet in fluid connection with said inlet manifold claim 1 , which is configured to receive a fluid stream from said reaction enclosure inlet and to distribute said fluid stream between the tube inlets of said multitude of reaction tubes.4. A reactor according to claim 1 , ...

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Номер записи: 33
24-01-2019 дата публикации

Composite Material Containing A Bismuth-Molybdenum-Nickel Mixed Oxide Or A Bismuth-Molybdenum-Cobalt Mixed Oxide And SIO2

Номер: US20190022629A1
Автор: Gabriele Donabauer, Gerhard Mestl, Inga Walzel, Magdalena Pritzl, Robert K. Grasselli, Silvia Neumann
Принадлежит: CLARIANT INTERNATIONAL LTD

The present invention relates to a process for producing a composite material and also the composite material itself. The composite material contains a bismuth-molybdenum-nickel mixed oxide or a bismuth-molybdenum-cobalt mixed oxide and a specific SiO2 as pore former. The present invention also relates to the use of the composite material according to the invention for producing a washcoat suspension and also a process for producing a coated catalyst using the composite material according to the invention. Furthermore, the present invention also relates to a coated catalyst which has a catalytically active shell comprising the composite material according to the invention on a support body. The coated catalyst according to the invention is used for preparing [alpha],[beta]-unsaturated aldehydes from olefins.

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Номер записи: 34
04-02-2016 дата публикации

Process for preparing acrylic acid from methanol and acetic acid

Номер: US20160031789A1
Автор: Frank Huetten, Lukas SCHULZ, Marco Hartmann, Nicolai Tonio Woerz, Tim Blaschke
Принадлежит: BASF SE

A process for preparing acrylic acid from methanol and acetic acid, comprising (i) contacting a gaseous stream S0 comprising methanol, oxygen and inert gas with an oxidation catalyst to obtain a gaseous stream S1 comprising formaldehyde and inert gas; (ii) removing at least a portion of the inert gas present in S1 from at least a portion of the formaldehyde present in S1 by absorbing this formaldehyde in an absorbent to obtain a gaseous stream S2 comprising the portion of the inert gas removed, and to obtain a stream S3 comprising absorbent and absorbate comprising formaldehyde; (iii) optionally removing a portion or the entirety of the absorbent present in stream S3, such that a stream S3a remains from stream S3, and producing a stream S4 from at least stream S3 or stream S3a and a stream S5 comprising acetic acid; and (iv) contacting stream S4 in gaseous form with an aldol condensation catalyst to obtain a gaseous stream S6 comprising acrylic acid.

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Номер записи: 35
09-02-2017 дата публикации

PROCESS FOR PRODUCTION OF ACRYLIC ACID

Номер: US20170036982A1
Автор: BLUM Till, CARLINE Travis, Friese Thorsten, FUCHS Christopher, HAREMZA SYLKE, JAEGER Ulrich, KORN Tobias, Rissel Steffen, Schliephake Volker, WELCH Darryl, Zurowski Peter
Принадлежит: BASF SE

The invention is related to a process for production of acrylic acid comprising the following steps: 2. The process according claim 1 , wherein the cooling in step b) is carried out as direct cooling of the product gas mixture with a finely sprayed cooling liquid claim 1 , wherein a portion of the cooling liquid evaporates.3. The process according to claim 2 , wherein the absorption column comprises a bottom space claim 2 , from which a first portion of a bottom liquid claim 2 , comprising the absorbent claim 2 , is withdrawn and applied in the direct cooling as the cooling liquid.4. The process according to claim 3 , wherein a second portion of the bottom liquid is fed to a distillation unit comprising a distillation column and a circulation heat exchanger.5. The process according to claim 4 , wherein in the distillation column claim 4 , the bottom liquid of the absorption column fed to the distillation unit is separated by distillation into a vapor claim 4 , in which the proportion by weight of absorbent is greater than the proportion by weight of absorbent in the bottom liquid of the absorption column claim 4 , and into a liquid concentrate claim 4 , in which the proportion by weight of constituents with higher boiling point than the absorbent claim 4 , under distillation conditions claim 4 , is greater than the proportion by weight of these constituents in the bottom liquid of the absorption column.6. The process according to claim 1 , wherein the second cooling loop is in a second position counting all cooling loops present in the absorption column from the bottom space of the absorption column upwards.7. The process according to claim 1 , wherein the absorption column comprises three cooling loops and a third cooling loop is arranged above the first cooling loop and the second cooling loop.8. The process according to claim 1 , wherein the second cooling loop is arranged above the first cooling loop claim 1 , the first cooling loop comprises a first chimney ...

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Номер записи: 36
24-02-2022 дата публикации

METHOD FOR PREPARING UNSATURATED MACROCYCLIC KETONES (II)

Номер: US20220055976A1
Автор: Brunzel Tom, KÖCKRITZ Angela
Принадлежит:

A process is proposed for preparing unsaturated macrocyclic monoketones, comprising the following steps: 2. The process of claim 1 , wherein the solvent (b3) is a polar aprotic solvent.3. The process of claim 1 , wherein the ligand (b4) is necessarily present claim 1 , the ligand being a bidentate ligand and comprising N claim 1 ,N claim 1 , N claim 1 ,O claim 1 , N claim 1 ,S or O claim 1 ,O donor atoms.4. The process of claim 1 , wherein the palladium(II) salt and/or the palladium(II) complex (b1) is selected from the group consisting of palladium bromide claim 1 , palladium acetate claim 1 , palladium trifluoroacetate claim 1 , palladium benzoate claim 1 , palladium nitrate claim 1 , palladium sulfate claim 1 , tetrakis(acetonitrile)palladium(II) tetrafluoroborate and tetrakis(acetonitrile)palladium(II) bis(trifluoromethanesulfonate).6. The process of claim 5 , wherein the palladium compound is added at a concentration of 0.01 to 25 mol % claim 5 , on the starting material (a).7. The process of claim 1 , wherein the oxidizing agent (b2) is an oxygen-containing gas.8. The process of claim 7 , wherein the oxygen-containing gas comprises oxygen at a concentration of 1 to 100 vol %.9. The process of claim 1 , wherein the process is carried out at temperatures of between 0° C. and 100° C.10. The process of claim 1 , wherein the co-catalyst (b5) and the acid (b6) are necessarily present.11. The process of claim 10 , wherein{'sub': 4', '2', '4', '4, '(i) the co-catalyst (b5) comprises at least one further component selected from the group consisting of benzoquinones, naphthoquinones, anthraquinones, molybdatophosphoric acid, molybdatovanadatophosphoric acids, tungstomolybdatophosphoric acids, tungstovanadatophosphoric acids, phthalocyanine complexes, FeSO, CuCl, CuCl, CuSO, VOSO, and'}(ii) the acid (b) is a Brønsted acid or Lewis acid.12. The process of claim 11 , wherein the co-catalyst (b5) is added at a concentration of 1 to 300 mol % claim 11 , based on the starting ...

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Номер записи: 37
12-02-2015 дата публикации

METHOD FOR PRODUCING ACROLEIN AND ACRYLIC ACID WITH A FIXED-BED MULTITUBULAR REACTOR

Номер: US20150045581A1
Автор: Kawano Tomoatsu, Onodera Hideo
Принадлежит:

This invention provides a method for producing acrolein and/or acrylic acid by catalytic gas-phase oxidation, which method makes it possible to carry out a continuous operation steadily for a long period of time while a high yield is maintained. 1. A method for producing acrolein and acrylic acid by the catalytic gas-phase oxidation of propylene with molecular oxygen or molecular oxygen-containing gas by a fixed-bed multitubular reactor which has been filled with catalyst , which method comprises filling each of reaction tubes of a fixed-bed multitubular reactor with at least two species of catalysts each of which essentially comprises , as catalytically active components , oxide of molybdenum , oxide of bismuth and oxide of iron and/or composite oxide of at least two of said elements , said at least two species of catalysts being different in the ratio of D1/D2 , D1 denoting the proportion of the total pore volume of pores whose pore diameter falls within the range of at least 0.03 μm and less than 0.3 μm to the total pore volume of the whole pores , and D2 denoting the proportion of the total pore volume of pores whose pore diameter falls within the range of at least 0.3 μm and at most 3 μm to the total pore volume of the whole pores , in such a manner that at least two reaction zones are formed axially in each of the reaction tubes.3. The method of for producing acrolein and acrylic acid wherein said catalyst is a molded catalyst into which the above-mentioned catalytically active component has been molded.4. The method of for producing acrolein and acrylic acid wherein said catalyst is a supported catalyst in which the above-mentioned catalytically active component is supported on an inert carrier of a specific shape.5. The method of for producing acrolein and acrylic acid wherein each of reaction tubes of a fixed-bed multitubular reactor is filled claim 1 , on the gas inlet side claim 1 , with a catalyst which has a small D1/D2 ratio claim 1 , and on the gas ...

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Номер записи: 38
18-02-2016 дата публикации

Reactive Scrubbing for Upgrading Product Value, Simplifying Process Operation and Product Handling

Номер: US20160045890A1
Автор: Evan Michael VISSER, Ian Lawrence GAFFNEY, Krishna K. Rao, Walter Breidenstein
Принадлежит: GAS TECHNOLOGIES LLC

A method for removing formaldehyde from a blend of partially oxygenated hydrocarbons is provided. The method including a step of reacting a hydrocarbon-containing gas with an oxygen-containing gas in a reaction vessel to form first product blend. The first product blend includes a blend of partially oxygenated compounds that include formaldehyde. The blend of partially oxygenated compounds is provided to a reactive scrubbing station where it is contacted with a reactive scrubbing liquid to form a reactive liquid-formaldehyde compound. The reactive liquid-formaldehyde compound is then removed from the first blend of partially reactive compounds.

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Номер записи: 39
01-05-2014 дата публикации

Integrated Process for the Production of Acrylic Acids and Acrylates

Номер: US20140121403A1
Автор: Craig J. Peterson, Dick Nagaki, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
Принадлежит: Celanese International Corp

A process for producing an acrylate product from methanol and acetic acid, in which, in a reaction zone A, the methanol is partially oxidized to formaldehyde in a catalyzed gas phase reaction, the product gas mixture A obtained and an acetic acid source are combined to form a reaction gas input mixture B which comprises acetic acid in excess over formaldehyde, and the formaldehyde in reaction gas input mixture B is aldol-condensed to acrylic acid in the presence of a catalyst in a reaction zone B to form an acrylic acid-containing product gas mixture B from which an acrylate product stream may be separated. Suitable aldol condensation catalysts include vanadium-bismuth, vanadium-titanium-bismuth, vanadium-bismuth-tungsten, vanadium-titanium-tungsten, vanadium-titanium and vanadium-tungsten.

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Номер записи: 40
15-02-2018 дата публикации

Modifying Cementitious Compositions Using Ketone Alcohol Oil Waste

Номер: US20180044240A1
Автор: Byong-Wa Chun, Felek Jachimowicz, Hua Zhong, Shuqiang Zhang, Yin-Zar HNIN
Принадлежит: GCP Applied Technologies Inc

The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.

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Номер записи: 41
25-02-2016 дата публикации

METHOD FOR PRODUCING A CATALYST FOR THE PARTIAL OXIDATION/AMMOXIDATION OF OLEFINS

Номер: US20160051967A1
Автор: Hou Hongyi C., JR. Anthony F., Lowe David Michael, Lugmair Claus G., Machiraju Deepti, MESTL Gerhard, MILLER Aaron B., Sokolovskii Valery, Volpe
Принадлежит:

The present invention relates to a method for producing a supported catalyst, a catalyst which is obtainable using the method, and use thereof for the partial oxidation or ammoxidation of olefins, in particular for the oxidation of propene to acrolein, of isobutene to methacrolein, and/or the ammoxidation of propene to acrylonitrile. The method according to the invention includes the following steps: a) providing a solution in which precursor compounds of the catalytically active component are essentially completely dissolved in a suitable solvent; b) bringing the solution obtained in step a) into contact with a (chemically) inert, porous support having a specific surface of 1 to 500 m/g; c) heat treatment of the material obtained in step b), in which the precursor compounds of the catalytically active component are converted to their oxides. 1. Method for producing a catalyst which includes as the catalytically active component a compound having the general formula MoBiFeABCDO , where A stands for Ni and/or Co , B stands for one or more metals selected from Mg , Cr , Mn , Zn , Ce , and Ca and combinations thereof , C stands for W , and D stands for one or more alkali metals , where x stands for a number from 10 to 14 , y stands for a number from 0.1 to 5 , z stands for a number from 0.5 to 5 , a stands for a number from 1 to 10 , b stands for a number from 0.1 to 6 , c stands for a number from ≧0 to 2 , d stands for a number from 0.02 to 2 , and v is determined by the oxidation state of the elements , the method including the following steps:a) Providing a solution in which precursor compounds of the catalytically active component are essentially completely dissolved in a suitable solvent;{'sup': '2', 'b) Bringing the solution obtained in step a) into contact with a chemically inert, porous support having a specific surface of 1 to 500 m/g;'}c) Heat treatment of the material obtained in step b), in which the precursor compounds of the catalytically active component ...

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Номер записи: 42
14-02-2019 дата публикации

PROCESS FOR THE SYNTHESIS OF (2E, 4E, 6Z, 8E)-8-(3,4-DIHYDRONAPHTHALEN-1(2H)-YLIDENE)-3,7-DIMETHYLOCTA-2, 4, 6-TRIENOIC ACID

Номер: US20190047933A1
Автор: Abel Ulrich, Bor Ádám, Répási József, Szabó András, Szücsné Cserépi Stefánia
Принадлежит:

This invention relates to a novel method for the synthesis of (2E,4E,6Z,8E)-8-(3,4-dihydronaphthalen-1(2H)-ylidene)-3,7-dimethylocta-2,4,6-trienoic acid. In particular, the invention relates to several improvements in several individual steps of the multi-step synthesis scheme 1. A method for the synthesis of MRZ-20321 comprising one or more of the steps of:(a) synthesizing E-2/Z-2 by performing a bromination of 1 in a solvent selected from benzotrifluoride and 1,3-bis(trifluoromethyl)benzene, particularly benzotrifluoride;(b) lithiating 1;(c) adding tetralone to lithiated 1;(d) synthesizing Z-7 starting from Z-5, wherein said method comprises the step of synthesizing the methyl ester Z-6;(e) reducing Z-6 to obtain Z-7;(f) oxidizing Z-7 with stabilized 2-iodoxybenzoic acid (SIBX);(g) reacting Z-8 with E-3/Z-3 in the presence of a lithium dialkylamide, particularly lithium diisopropylamide or lithium diethylamide, particularly lithium diisopropylamide; and/or(h) recrystallizing MRZ-20321 from isopropanol or from n-heptane or from mixtures of n-heptane and 2-methyl tetrahydrofuran.2. The method of claim 1 , wherein step (a) is performed in benzotrifluoride as solvent.3. The method of or claim 1 , wherein said bromination in step (a) is performed with N-bromosuccinimide.4. The method of claim 3 , wherein said bromination is performed by using a radical initiator selected from azobisisobutyronitrile claim 3 , and dibenzoyl peroxide claim 3 , particularly azobisisobutyronitrile.5. The method of any one of to claim 3 , wherein said lithiating in step (b) is performed by using a lithiating reagent selected from a lithium dialkylamide claim 3 , particularly lithium diisopropylamide or lithium diethylamide; a lithium claim 3 , sodium or potassium salt of bis(trimethylsilyl)amide (HMDS) claim 3 , particularly lithium bis(trimethylsilyl)amide; and lithium tetramethylpiperidine.6. The method of any one of to claim 3 , wherein said step (d) comprises reacting Z-5 with a ...

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Номер записи: 43
25-02-2016 дата публикации

A metal-doped hydroxyapatite catalyst

Номер: US20160052851A1
Автор: Armando Borgna, Kanaparthi Ramesh, Timothy John White, Yi Ling Eileen Goh
Принадлежит: Agency for Science Technology and Research Singapore, NANYANG TECHNOLOGICAL UNIVERSITY

The present invention provides the use of a metal-doped hydroxyapatite catalyst for highly selective conversion of an alcohol to an aldehyde at low temperatures. More specifically, the invention provides the use of a silver-doped hydroxyapatite catalyst for the highly selective oxidative dehydrogenation of ethanol to acetaldehyde. The present invention also provides the method for converting ethanol to acetaldehyde using a silver-doped hydroxyapatite catalyst.

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Номер записи: 44
25-02-2016 дата публикации

Plate-type reactor with in-situ injection

Номер: US20160052853A1
Автор: Jean-Luc Dubois
Принадлежит: Arkema France SA

A chemical reactor including: a plurality of heat exchange plates which between them define reaction compartments, in which reactor each heat exchange plate includes two walls between them defining at least one heat exchange space, the respective walls being fixed together by joining regions, and the reactor also comprises at least one injection device for injecting substance into the reaction compartments, said substance-injection device passing through the heat-exchange plates in respective joining regions thereof. Also, a chemical reaction process that can be carried out in this reactor.

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Номер записи: 45
13-02-2020 дата публикации

RESTARTING METHOD

Номер: US20200048175A1
Автор: Kawamura Tomoyuki, Kobayashi Tomoaki, Kurakami Tatsuhiko, Yoshida Hideo
Принадлежит: Nippon Kayaku Kabushiki Kaisha

A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period. 1. A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid , with use of a fixed-bed reactor filled with a gas-phase oxidation catalyst , by subjecting at least one source gas selected from the group consisting of propylene and acrolein to a gas-phase contact oxidation reaction while causing a heating medium to contact with or circulate through the fixed-bed reactor and thereby heating the fixed-bed reactor ,wherein a temperature of the heating medium when a load is maximum in a restart period after a shutdown is controlled to be lower than a temperature of the heating medium when a load is maximum in an initial start-up period.2. The method for producing an oxidation product according to claim 1 , wherein production of the oxidation product is restarted after the shutdown within 9000 hours after an initial start-up of the reaction.4. The method for producing an oxidation product according to claim 1 ,wherein the fixed-bed reactor is a multistage fixed-bed reactor which is equipped with a first fixed-bed reactor ...

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Номер записи: 46
03-03-2016 дата публикации

Catalyst For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid, Method For Producing Same, And Method For Producing Unsaturated Aldehyde and/or Unsaturated Carboxylic Acid

Номер: US20160059218A1
Автор: Hiraoka Ryota, Kurakami Tatsuhiko, Nakahara Masaki, NAKAZAWA Yuuta, Nishimura Eiji, Shiraishi Kazuo, Shoya Yoshiko
Принадлежит:

Provided is a catalyst having high activity and yield of a target product for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid and further having high mechanical strength. The catalyst is a catalyst prepared by a method in which a catalyst formulation satisfies specified atomic ratios; and in the preparation thereof, a molybdenum component raw material is an ammonium molybdate, a solvent for dissolving the ammonium molybdate is water, a bismuth component raw material is bismuth nitrate, and a solvent for dissolving bismuth nitrate is a nitric acid aqueous solution, and the weight of water for dissolving the ammonium molybdate, the weight of the nitric acid aqueous solution for dissolving the bismuth nitrate, and the acid concentration of the nitric acid aqueous solution are satisfied with specified ranges, respectively. 1. A catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid , comprising:a compound represented by the following formula (1), {'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h, 'MoBiFeCoNiXYZO\u2003\u2003Formula (1)'}, 'the catalyst being prepared by a method in which in a step of preparing the compound represented by the following formula (1), a molybdenum component raw material is composed of only ammonium molybdate, a weight of water for dissolving the ammonium molybdate is 8.5 times or less relative to a weight of molybdenum contained in the ammonium molybdate, and a bismuth component raw material is composed of only bismuth nitrate, a weight of a nitric acid aqueous solution for dissolving the bismuth nitrate is 2.3 times or more relative to a weight of bismuth contained in the bismuth nitrate, and a nitric acid concentration of the nitric acid aqueous solution for dissolving the bismuth nitrate is 10% by weight or morewherein X is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), cerium (Ce) and ...

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Номер записи: 47
03-03-2016 дата публикации

Catalyst For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid, Method For Producing The Catalyst, And Method For Producing Unsaturated Aldehyde and/or Unsaturated Carboxylic Acid Using The Catalyst

Номер: US20160059220A1
Автор: Hashiba Masashi, Kawaguchi Toru, Shoya Yoshiko, Taniguchi Asa, Yoshida Hideo
Принадлежит: Nippon Kayaku Kabushiki Kaisha

An object of the invention is to provide a novel catalyst having high mechanical strength and capable of obtaining an unsaturated aldehyde or an unsaturated carboxylic acid in a high yield and a method for producing the same, and a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid using the catalyst. 2. The catalyst according to claim 1 ,wherein a content of the silane-treated glass fibers is in a range of 0.1% by mass to 30% by mass relative to the catalytic active component.3. The catalyst according to claim 1 , which is prepared by physically mixing the compound containing the catalytic active component and the silane-treated glass fibers and supporting the mixture on an inert carrier.4. The catalyst according to claim 1 ,wherein when a calcining temperature is 510° C. or higher, an average catalyst particle diameter is 5.0 mm or more.5. The catalyst according to claim 1 ,wherein when a calcining temperature is 540° C. or higher, an average catalyst particle diameter is 6.0 mm or more.6. A method for producing the catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim 1 , comprising:physically mixing the compound containing the catalytic active component represented by the formula (1) and the silane-treated glass fibers; andsupporting the mixture on an inert carrier.7. A method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid claim 1 , which uses the catalyst according to . The present invention relates to a novel catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, a method for producing the catalyst, and a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid using the catalyst.Methods in which propylene, isobutylene or tertiary butyl alcohol is used as a raw material to produce a corresponding unsaturated aldehyde or unsaturated carboxylic acid are industrially widely carried out. However, ...

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Номер записи: 48
15-05-2014 дата публикации

GAS PHASE HETEROGENEOUS CATALYTIC OXIDATION OF ALKANES TO ALIPHATIC KETONES AND/OR OTHER OXYGENATES

Номер: US20140135532A1
Автор: Lin Manhua, Wang Xiang, Yeom Younghoon
Принадлежит: EverNu Technology LLc

A catalyst, its method of preparation and its use for producing aliphatic ketones by subjecting alkanes Cto Cto a gas phase catalytic oxidation in the presence of air or oxygen, and, optionally, steam and/or one or more diluting gases. The catalyst comprises a catalytically active mixed metal oxide phase and a suitable support material onto and/or into which the active catalytic phase id dispersed. 1. A process for producing at least an aliphatic ketone having a carbon number from 3 to 9 with or without one or more other oxygenates , comprising subjecting a feed gas mixture including an alkane of the same number of carbon and air or oxygen , and , optionally , steam and/or one or more diluting gases , to a gas phase catalytic oxidation in a heated reactor in the presence of a supported catalyst comprising a catalytically active mixed metal oxide phase and a suitable multi-dimensional support material onto and/or into which the catalytically active phase is incorporated , wherein the catalytically active phase comprises a compound having the formula ABXOwherein A is at least one of the group of elements Mo , Nb , Ta , Ti , W , and Zr; B is at least one of the group of elements Cs , K , Li , Na and Rb; and X , if present , is at least one of the group of elements Al , Ba , Ca , Dy , Fe , Ga , La , Mg , Pd , Pr , Si , Sr , V and Zn in addition to the elements of groups A and B; and wherein a=1 , b is 0.01 to 20 , x is 0 to 1 , and n is dependent on the oxidation state of the other elements , and the support comprises at least one high surface area and thermally stable carbide , nitride , graphite or oxide material , said oxide being selected from the group of AlO , CeO , CeO , LaO , MgO , NbO , SiO , TiO , YO , YbOand ZrO , or a composite thereof.2. The process according to wherein said feed gas mixture comprises an alkane of acyclic claim 1 , cyclic claim 1 , or a substituted cyclic structure and having a carbon number from 3 to 9 claim 1 , and air or oxygen claim 1 , ...

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Номер записи: 49
28-02-2019 дата публикации

LIQUID PHASE OXIDATION OF LOWER ALKANES TO OXYGENATES

Номер: US20190062247A1
Автор: Bhattacharyya Alakananda, Kuznetsova Nina I., Walenga Joel T.
Принадлежит:

A liquid phase selective oxidation process is described. The process involves the partial oxidation of alkanes to partially oxidized products. A lower alkane, a solvent, and a soluble metal catalyst are contacted in the presence of an oxidizing agent in a reaction zone under partial oxidation conditions to produce the partially oxidized products. The partially oxidized products include one or more of lower alkyl alcohols, lower alkyl ketones, and lower alkyl acetates. The soluble metal catalyst is a soluble metal salt of cobalt, manganese, chromium, titanium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, zirconium, or combinations thereof, and the promoter comprises a bromine source, an imide source, or combinations thereof. 1. A liquid phase selective oxidation process comprising contacting a lower alkane , a solvent , a soluble metal catalyst , and a promoter in the presence of an oxidizing agent in a reaction zone under partial oxidation conditions to produce a partially oxidized product comprising one or more of a lower alkyl alcohol , a lower alkyl ketone , and a lower alkyl acetate , wherein a weight ratio of the lower alkane to oxygen is in a range of about 20:1 to about 1:2 , wherein the soluble metal catalyst is a soluble metal salt of cobalt , manganese , chromium , titanium , copper , nickel , vanadium , iron , molybdenum , tin , cerium , zirconium , or combinations thereof , and wherein the promoter comprises a bromine source , an imide source , or combinations thereof.2. The process of wherein the lower alkane comprises an alkane having 2 to 5 carbon atoms.3. The process of wherein the solvent comprises a carboxylic acid claim 1 , benzyl nitrile claim 1 , acetonitrile claim 1 , or combinations thereof.4. The process of wherein the solvent comprises the carboxylic acid having from 1 to 7 carbon atoms.5. The process of wherein the promoter comprises HBr claim 1 , NaBr claim 1 , KBr claim 1 , NHBr claim 1 , benzyl bromide claim 1 , mono- ...

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Номер записи: 50
08-03-2018 дата публикации

NANOPARTICLE CATALYSTS FOR CONVERSION OF CYCLOHEXANOL TO CYCLOHEXANONE

Номер: US20180065910A1
Автор: Gill Arran M., Keenan Scott R., Levy Alan B., Potter Matthew E., Raja Robert, Van Aswegen Sivan A.
Принадлежит:

Methods for converting an alcohol, such as cyclohexanol to a ketone, such as cyclohexanone, include reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone. In one exemplary embodiment, the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles. In one exemplary embodiment, the noble metal nanoparticles include at least one metal selected from the group consisting of platinum, palladium, and gold. 1. A catalyst comprising a microporous copper chloropyrophosphate framework comprising a plurality of noble metal nanoparticles , the catalyst activated in a reducing atmosphere.2. The catalyst of claim 1 , wherein the microporous copper chloropyrophosphate framework has the general formula:{'br': None, 'sub': 9', '6', '2', '7', '4', '4', 'y, '[ACu(PO)Cl].[MX]Cl'}{'sub': '4', 'claim-text': M is selected from Cu, Au, Pt, and Pd;', 'X is selected from Cl and Br; and', 'y is 2 when M is Pt, Pd, or Cu and y is 3 when M is Au., 'where: A is selected from K, Rb, Cs, and NH;'}3. The catalyst of claim 2 , wherein the microporous copper chloropyrophosphate framework has a general formula selected from the group consisting of:{'sub': 9', '6', '2', '7', '4', '4', '4', '9', '6', '2', '7', '4', '3', '4', '9', '6', '2', '7', '4', '3', '4, 'RbCu(PO)Cl(AuCl), RbCu(PO)Cl(PtCl), and RbCu(PO)Cl(PdCl).'}4. The catalyst of claim 1 , wherein the catalyst comprises precursor complexes that result in isolated noble metal nanoparticle sites upon activation.5. The catalyst of claim 4 , wherein the precursor complexes are selected from the group consisting of [PtCl] claim 4 , [PdCl] claim 4 , and [AuCl].6. The catalyst of claim 1 , wherein the noble metal nanoparticles include at least one metal selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.7. The catalyst of claim 6 , wherein the microporous copper chloropyrophosphate framework includes a plurality of mono-metallic ...

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Номер записи: 51
11-03-2021 дата публикации

BUILT-IN MICRO INTERFACIAL ENHANCED REACTION SYSTEM AND PROCESS FOR PTA PRODUCTION WITH PX

Номер: US20210069666A1
Автор: Cao Yu, Li Lei, LUO Huaxun, Meng Weimin, TIAN Hongzhou, WANG Baorong, Yang Gaodong, YANG Guoqiang, Zhang Feng, Zhang Zhibing, Zhou Zheng
Принадлежит: NANJING YANCHANG REACTION TECHNOLOGY RESEARCH INSTITUTE CO., LTD.

A built-in micro interfacial enhanced reaction system and process for PTA production with PX are provided. The system includes a reactor and a micro interfacial unit disposed inside reactor. The reactor includes a shell, an inner cylinder concentrically disposed inside shell, and a circulating heat exchange device partially disposed outside shell, inner cylinder having a bottom end connected to inner bottom surface of the shell in closed manner and an open top end, a region between shell and inner cylinder being first reaction zone, inner cylinder containing second reaction zone and third reaction zone from top to bottom, circulating heat exchange device being connected to inner cylinder and micro interfacial unit respectively. The invention can solve problems of large waste of reaction solvent acetic acid under high temperature and high pressure and being unable to take out the product TA in time during existing process of PTA production with PX. 1. A built-in micro interfacial enhanced reaction system for PTA production with PX , comprising: a reactor and a micro interfacial unit disposed inside the reactor; whereinthe reactor comprises a shell, an inner cylinder concentrically disposed inside the shell, and a circulating heat exchange device partially disposed outside the shell, the inner cylinder having a bottom end connected to an inner bottom surface of the shell in a closed manner and a top end extending toward a top end of the reactor, a region between the shell and the inner cylinder being a first reaction zone, the inner cylinder containing a second reaction zone and a third reaction zone from top to bottom, the circulating heat exchange device being connected to the inner cylinder and the micro interfacial unit respectively;the micro interfacial unit comprises a first micro interfacial generator and a second micro interfacial generator, wherein the first micro interfacial generator is respectively disposed at bottom portions of the first reaction zone, ...

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Номер записи: 52
29-05-2014 дата публикации

Oxidation Of Cyclohexylbenzene

Номер: US20140148569A1
Автор: Benitez Francisco Manuel, Dakka Jihad Mohammed, Mozeleski Edmund John, Patel Bryan Amrutlal
Принадлежит: ExxonMobil Chemical Patents Inc.

In a process for oxidizing a feed comprising cyclohexylbenzene, the feed is contacted with oxygen and an oxidation catalyst in a plurality of reaction zones connected in series, the contacting being conducted under conditions being effective to oxidize part of the cyclohexylbenzene in the feed to cyclohexylbenzene hydroperoxide in each reaction zone. At least one of the plurality of reaction zones has a reaction condition that is different from another of the plurality of reaction zones. The different reaction conditions may include one or more of (a) a progressively decreasing temperature and (b) a progressively increasing oxidation catalyst concentration as the feed flows from one reaction zone to subsequent reaction zones in the series. 1. A process for oxidizing a feed comprising cyclohexylbenzene , the process comprising:contacting the feed with oxygen and an oxidation catalyst in a plurality of reaction zones connected in series, wherein the contacting in at least two of the plurality of reaction zones is conducted under conditions effective to oxidize a portion of the cyclohexylbenzene to cyclohexylbenzene hydroperoxide, and at least one of the plurality of reaction zones has a different reaction condition than another of the plurality of reaction zones.2. The process of claim 1 , wherein the plurality of reaction zones consists of three reaction zones.3. The process of claim 1 , wherein the different reaction condition includes a temperature decrease from at least one of the plurality of reaction zones to the next of the plurality of reaction zones in the series.4. The process of claim 1 , wherein the different reaction condition includes a temperature decrease of at least 5° C. from at least one of the plurality of reaction zones to the next of the plurality of reaction zones in the series.5. The process of claim 1 , wherein the temperature in the first of the plurality of reaction zones in the series is about 100° C. to about 120° C. and the temperature in ...

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Номер записи: 53
15-03-2018 дата публикации

INTEGRATED PROCESS FOR THE PRODUCTION OF FORMALDEHYDE-STABILIZED UREA

Номер: US20180072658A1
Автор: ERLANDSSON Ola, MAGNUSSON Andreas, PACH John David, SHELDON Daniel
Принадлежит:

A process for the production of formaldehyde-stabilised urea is described comprising the steps of: (a) generating a synthesis gas comprising hydrogen, nitrogen, carbon monoxide, carbon dioxide and steam in a synthesis gas generation unit; (b) recovering carbon dioxide from the synthesis gas to form a carbon dioxide-depleted synthesis gas; (c) synthesising methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas comprising nitrogen, hydrogen and residual carbon monoxide; (d) subjecting at least a portion of the recovered methanol to oxidation with air in a formaldehyde production unit; (e) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas; (f) synthesising ammonia from the ammonia synthesis gas in an ammonia production unit and recovering the ammonia; (g) reacting a portion of the ammonia and at least a portion of the recovered carbon dioxide stream in a urea production unit to form a urea stream; and (h) stabilising the urea by mixing the urea stream and a stabiliser prepared using formaldehyde recovered from the formaldehyde production unit, wherein a source of air is compressed and divided into first and second portions, the first portion is provided to the formaldehyde production unit for the oxidation of methanol and the second portion is further compressed and provided to the synthesis gas generation unit. 1. A process for producing formaldehyde-stabilized urea comprising the steps of:(a) generating a synthesis gas comprising hydrogen, nitrogen, carbon monoxide, carbon dioxide and steam in a synthesis gas generation unit;(b) recovering carbon dioxide from the synthesis gas to form a carbon dioxide-depleted synthesis gas;(c) synthesizing methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off- ...

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Номер записи: 54
15-03-2018 дата публикации

PROCESS FOR THE PRODUCTION OF FORMALDEHYDE

Номер: US20180072659A1
Автор: ERLANDSSON Ola, MAGNUSSON Andreas, PACH John David, SHELDON Daniel
Принадлежит:

A process is described for the production of formaldehyde, comprising (a) subjecting methanol to oxidation with air in a formaldehyde production unit thereby producing a formaldehyde-containing stream; (b) separating said formaldehyde-containing stream into a formaldehyde product stream and a formaldehyde vent gas stream; wherein the vent gas stream, optionally after treatment in a vent gas treatment unit, is passed to one or more stages of: (i) synthesis gas generation, (ii) carbon dioxide removal, (iii) methanol synthesis or (iv) urea synthesis. 110-. (canceled)11. A process for producing a formaldehyde-stabilised urea product comprising the steps of(a) generating a synthesis gas comprising hydrogen, nitrogen, carbon monoxide, carbon dioxide and steam in a synthesis gas generation unit;(b) recovering carbon dioxide from the synthesis gas to form a carbon dioxide-depleted synthesis gas;(c) synthesizing methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas comprising nitrogen, hydrogen and residual carbon monoxide;{'b': '9', '(d) subjecting at least a portion of the recovered methanol to oxidation with air in a process comprising subjecting the methanol to oxidation with air in a formaldehyde production unit thereby producing a formaldehyde-containing stream, separating the formaldehyde-containing stream into a formaldehyde product stream and a formaldehyde vent gas stream , wherein said recovered methanol forms at least a portion of the feed to said formaldehyde production unit;'}(e) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas;(f) synthesizing ammonia from the ammonia synthesis gas in an ammonia production unit and recovering the ammonia;(g) reacting a portion of the ammonia and at least a portion of the recovered carbon dioxide stream in a urea production unit to form a ...

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Номер записи: 55
18-03-2021 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Номер: US20210077981A1
Автор: Barr Jared L., CLEAR Kathy S., Cruz Carlos A., MCDANIEL Max P., Monwar Masud M.
Принадлежит:

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support. 1. A process for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound , the process comprising:(a)(i) heat treating a supported chromium precursor at a peak temperature from about 50° C. to about 1000° C. to form a supported chromium catalyst comprising chromium in a hexavalent oxidation state; or(a)(ii) contacting a chromium precursor with a solid support while heat treating at a peak temperature from about 50° C. to about 1000° C. to form a supported chromium catalyst comprising chromium in a hexavalent oxidation state; or(a)(iii) heat treating a solid support at a peak temperature from about 50° C. to about 1000° C. and then contacting a chromium precursor with the solid support to form a supported chromium catalyst comprising chromium in a hexavalent oxidation state;(b) irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst; and(c) hydrolyzing the reduced chromium catalyst to form a ...

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Номер записи: 56
14-03-2019 дата публикации

METHOD FOR THE HYDROTHERMAL PREPARATION OF MOLYBDENUM-BISMUTH-COBALT-IRON-BASED MIXED OXIDE CATALYSTS

Номер: US20190076829A1
Автор: FISCHER Achim, GRUNWALDT Jan-Dierk, KLEIST Wolfgang, SPRENGER Paul
Принадлежит: EVONIK DEGUSSA GmbH

The present invention relates to a process for preparing molybdenum-bismuth-iron-cobalt-based multielement oxide catalysts by means of hydrothermal synthesis, wherein the hydrothermal synthesis is conducted with an aqueous solution and/or an aqueous suspension of precursor compounds of the elements present in the multielement oxide catalyst to be prepared, the pH of which has been adjusted to a value between about 6 and about 8. The present invention also further relates to the multielement oxide catalysts obtainable by this process and to the use thereof in the partial gas phase oxidation of olefins and tert-butanol. 1. A process for preparing a multielement oxide catalyst , the process comprising:providing a mixture of an aqueous solution and/or an aqueous suspension of precursor compounds of elements present in the multielement oxide catalyst in an amount to achieve stoichiometry thereof,setting a pH of the mixture obtained from the providing to a value between 5.5 and 8.5,reacting the mixture comprising the precursor compounds obtained from the setting under solvothermal reaction conditions in an autoclave at a temperature of from 100° C. to 600° C. to form the multielement oxide catalyst, andseparating the multielement oxide catalyst from the aqueous solution and/or suspension, {'br': None, 'sub': a', 'b', 'c', 'd', 'g', 'f', 'g', 'h', 'i', 'j', 'x, 'MoBiCoFeNiXX′X″X′″X″″O\u2003\u2003(I),'}, 'wherein the multielement oxide catalyst is of formula (I)whereinX is W or P,X′ is Li, K, Na, Rb, Cs, Mg, Ca, Ba or Sr,X″ is Ce, Mn, Cr or V,X″′ is Nb, Se, Te, Sm, Gd, La, Y, Pd, Pt, Ru, Ag or Au,X″″ is Si, Al, Ti or Zr,a is 12,b is 1 to 4,c is 4 to 10,d is 1 to 4,e is 0 to 4,f is 0 to 5,g is 0 to 2,h is 0 to 5,i is 0 to 2,j is 0 to 800, andx is a number which is determined by a valency and frequency of the elements other than oxygen.2. The process according to claim 1 , wherein the precursor compounds in step a) are salts.3. The process according to claim 1 , wherein the ...

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Номер записи: 57
14-03-2019 дата публикации

PROCESS FOR PRODUCING PRENOL AND PRENAL FROM ISOPRENOL

Номер: US20190077736A1
Автор: BRUNNER Bernhard, DEHN Martine, Ebel Klaus, HUBER Sabine
Принадлежит:

The present invention relates to a process for preparing 3-methyl-2-butenol (prenol) and 3-methyl-2-butenal (prenal) from 3-methyl-3-butenol (isoprenol), in which 3-methyl-3-butenol is subjected to a catalytic isomerization over a carbon-supported Pd catalyst in the presence of a gas mixture comprising 1% to 15% by volume of oxygen to obtain a first product mixture, and the first product mixture is subjected to an oxidative dehydrogenation over a Pd catalyst comprising SiOand/or AlOas support material, or over a carbon-supported Pd/Au catalyst in the presence of a gas mixture comprising 5% to 25% by volume of oxygen. 117.-. (canceled)19. The process according to claim 18 , wherein the catalyst used in step ii) is a Pd catalyst comprising SiOand/or AlOas support material.20. The process according to claim 18 , wherein the gas mixture used in step i) comprises 3% to 10% by volume of oxygen.21. The process according to claim 18 , wherein the gas mixture used in step ii) comprises 8% to 15% by volume of oxygen.22. The process according to claim 18 , wherein the oxygen content of the gas mixture used in step i) is 2% to 10% by volume below the oxygen content of the gas mixture used in step ii).23. The process according to claim 18 , wherein the first product mixture obtained in step i) consists ofi.1 40% to 80% by weight of 3-methyl-2-butenol,i.2 0% to 15% by weight of 3-methyl-2-butenal,i.3 5% to 59% by weight of 3-methyl-3-butenol andi.4 0% to 10% by weight of compounds other than i.1, i 2 and i.3.24. The process according to claim 18 , wherein the first product mixture obtained in step i) consists ofi.1 45% to 70% by weight of 3-methyl-2-butenol,i.2 5% to 10% by weight of 3-methyl-2-butenal,i.3 20% to 50% by weight of 3-methyl-3-butenol andi.4 0% to 5% by weight of compounds other than i.1, i.2 and i.3.25. The process according to claim 18 , wherein the total proportion of 3-methyl-2-butenol claim 18 , 3-methyl-2-butenal and 3-methyl-3-butenol in the first product ...

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Номер записи: 58
19-03-2020 дата публикации

Catalyst

Номер: US20200086301A1
Автор: Hiroto Ito, Mitsunobu Ito
Принадлежит: Mitsubishi Chemical Corp

A catalyst for producing unsaturated aldehyde and unsaturated carboxylic acid, wherein the cumulative pore volume (A) of pores having a pore diameter of 1 μm or more and 100 μm or less, in the catalyst, is 0.12 ml/g or more and 0.19 ml/g or less, and the ratio (A/B) of the cumulative pore volume (A) to the cumulative pore volume (B) of pores having a pore diameter of 1 μm or more and 100 μm or less, in a pulverized product not passing through a Tyler 6 mesh, in a pulverized product obtained by pulverization of the catalyst under a particular condition is 0.30 or more and 0.87 or less.

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Номер записи: 59
28-03-2019 дата публикации

METHOD FOR PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID

Номер: US20190092713A1
Автор: CHANG Junghoon, CHOE Young Hyun, CHOI Byung Yul, JEON Sang Hun, KO Jun Seok, SHIN Hyun Jong
Принадлежит: LG CHEM, LTD.

The present invention relates to a method for producing unsaturated aldehydes and unsaturated carboxylic acids. According to the present invention, a method for producing unsaturated aldehydes and unsaturated carboxylic acids which can impart activity and control temperature independently in fixed catalyst layer zones in a shell-and-tube reactor, thereby exhibiting improved yield and operation stability, is provided. 1. A method for producing unsaturated aldehydes and unsaturated carboxylic acids corresponding to a raw material in which at least one compound selected from propylene , isobutylene , t-butyl alcohol , and methyl-t-butyl ether is added as the raw material and subjected to gas phase contact oxidation with molecular oxygen or a molecular oxygen-containing gas , using a fixed-bed multistage heat medium circulating type of multi-tubular shell-and-tube reactor filled with a catalyst ,wherein the multistage heat medium circulating type of multi-tubular shell-and-tube reactor includes a cylindrical shell, a plurality of tube sheets for separating the inside of the shell into a plurality of independent spaces, a baffle for dividing the plurality of independent spaces inside the shell into two spatially continuous zones, and a plurality of reaction tubes fixed to the inside of the shell while penetrating through the plurality of tube sheets and the baffle,wherein, in the plurality of independent spaces inside the shell, heat transfer to the reaction tube is performed independently at a temperature of 280 to 400° C. by the flow of an independent heat medium, andwherein at least four spatially continuous fixed catalyst layer zones exist in the reaction tube, and the fixed catalyst layer zones have high activity in the direction from an inlet to an outlet of the reaction tube.2. The method for producing unsaturated aldehydes and unsaturated carboxylic acids according to claim 1 , wherein claim 1 , in the plurality of independent spaces inside the shell claim 1 , ...

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Номер записи: 60
06-04-2017 дата публикации

NANOPARTICLE CATALYSTS FOR CONVERSION OF CYCLOHEXANOL TO CYCLOHEXANONE

Номер: US20170096380A1
Автор: Gill Arran M., Keenan Scott R., Levy Alan B., Potter Matthew E., Raja Robert, Van Aswegen Sivan A.
Принадлежит: University of Southampton

Methods for converting an alcohol, such as cyclohexanol to a ketone, such as cyclohexanone, include reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone. In one exemplary embodiment, the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles. In one exemplary embodiment, the noble metal nanoparticles include at least one metal selected from the group consisting of platinum, palladium, and gold. 1. A method of converting an alcohol to a ketone , comprising:reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone, wherein the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles.2. The method of claim 1 , wherein the alcohol is a cyclic alcohol.3. The method of claim 2 , wherein the alcohol is cyclohexanol and the ketone is cyclohexanone.4. The method of claim 3 , further comprising providing a mixture of cyclohexanone and cyclohexanol claim 3 , wherein the provided cyclohexanol is reacted in said reacting step.5. The method of claim 4 , wherein the mixture comprises 5 wt. % to 95 wt. % cyclohexanol claim 4 , based on the total weight of the cyclohexanol and cyclohexanone.6. The method of claim 4 , wherein the mixture comprises 40 wt. % to 60 wt. % cyclohexanol claim 4 , based on the total weight of the cyclohexanol and cyclohexanone.7. The method of claim 1 , wherein the noble metal nanoparticles include at least one metal selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.8. The method of claim 1 , wherein the noble metal nanoparticles include at least two metals selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.9. A catalyst comprising a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles.10. The catalyst of claim 9 , wherein the microporous copper ...

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Номер записи: 61
14-04-2016 дата публикации

MULTIFUNCTIONAL POROUS ARAMIDS (AEROGELS), FABRICATION THEREOF, AND CATALYTIC COMPOSITIONS DERIVED THEREFROM

Номер: US20160102187A1
Автор: Leventis Nicholas, Saeed Malik Adnan, Sotiriou-Leventis Chariklia
Принадлежит:

The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and may be derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid or a ferrocene multifunctional carboxylic acid with a polyfunctional aromatic isocyanate at moderate reaction conditions followed by drying with liquid CO. Also disclosed are various methods of use of these polyamide aerogels in a variety of applications, particularly in the generation of various precious metal catalysts. Thus, monolithic nanoporous carbon-supported Fe, Au, Pt, Pd, Co, Ni, Ru, and Rh catalysts are disclosed herein, which are derived by pyrolysis and transmetalation via galvanic replacement of ferrocene-based polyamide aerogels. 3. A process for carbonizing the polymeric aerogel of claim 1 , said process comprising the step of pyrolizing the polymeric aerogel at temperatures in the range 500-2300° C. to yield a nanoporous product that includes iron-doped carbon-monoliths containing Fe(0) nanoparticles in graphitic pockets dispersed throughout the 3D matrix of monolithic nanoporous carbon.4. A process for partially or completely transmetalating the iron-doped carbon-monoliths of to produce M-doped carbon monoliths claim 3 , wherein M is one or more metals selected from the group of metals consisting of Fe claim 3 , Au claim 3 , Pt claim 3 , Pd claim 3 , Co claim 3 , Ni claim 3 , Ru claim 3 , and Rh claim 3 , said process comprising the step of dipping the iron-doped carbon monoliths in solutions of the respective metal ions.5. The process of claim 4 , further including the step of subjecting the ...

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Номер записи: 62
26-03-2020 дата публикации

PROCESS FOR OXIDATION OF A LOWER ALKENE AT LOW TEMPERATURES IN AMMONIA-CONTAINING GAS MIXTURES

Номер: US20200095216A1
Автор: Beato Pablo, Janssens Ton V.W.
Принадлежит: Haldor Topsoe A/S

In a process for the oxidation of a lower alkene, such as ethylene, over a catalyst containing Cu and one or more zeolite or zeotype materials, the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C. The oxidation can be performed in a continuous process. 1. A process for the oxidation of a lower alkene over a catalyst containing Cu and one or more zeolite or zeotype materials , wherein the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C.2. Process according to claim 1 , wherein a zeolite or zeotype material is mixed with an oxide of Cu.3. Process according to claim 1 , wherein the zeotype is a silico-alumino phosphate material.4. Process according to claim 1 , in which the oxidation is performed in a continuous process.5. Process according to claim 1 , wherein the lower alkene is ethylene.6. Process according to claim 1 , wherein the reaction product is ethylene oxide.7. Process according to claim 1 , wherein the reaction product is ethylene glycol.8. Process according to claim 1 , wherein the reaction product is acetaldehyde.9. Process according to claim 1 , wherein the lower alkene is propylene.10. Process according to claim 1 , wherein the reaction product is propylene oxide.11. Process according to claim 1 , wherein the content of ammonia in the feed gas is between 1 and 5000 ppmv.12. Process according to claim 1 , wherein the content of oxygen in the feed gas is 10 vol % or lower.13. Process according to claim 1 , wherein the content of water in the feed gas is 10 vol % or lower.14. Process according to claim 1 , wherein the process temperature is 250° C. or lower.15. Process according to claim 1 , wherein one or more zeolite or zeotype materials in the catalyst have structures selected from the group consisting of AEI claim 1 , AFX claim 1 , CHA claim 1 , KFI claim 1 , ERI claim 1 , GME claim 1 , LTA claim 1 , IMF claim 1 , ITH claim 1 , MEL claim 1 , ...

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Номер записи: 63
02-06-2022 дата публикации

METHOD FOR PRODUCING UNSATURATED ALDEHYDE

Номер: US20220169587A1
Автор: Hiraoka Ryota, Kawamura Tomoyuki, YASUDA Shogo
Принадлежит: Nippon Kayaku Kabushiki Kaisha

Provided is a method for producing an unsaturated aldehyde including subjecting an alkene to partial oxidation using a fixed bed multi-tube reactor to produce the corresponding unsaturated aldehyde, in which n catalyst layers (n is 2 or more) in a gas flow direction in a reaction tube are provided, when a filling length of the catalyst layers from a first catalyst layer to an (n-1)th catalyst layer from a gas inlet side of the reaction tube is L, and a filling length of an nth catalyst layer from the gas inlet side of the reaction tube is Ln, a relationship between L and Ln satisfies the following equation (1): 3. The method for producing an unsaturated aldehyde according to claim 1 , wherein a catalyst contained in the catalyst layer has a spherical shape.4. The method for producing an unsaturated aldehyde according to claim 1 , wherein a concentration of the alkene in a raw material is 6 vol % to 12 vol %.5. The method for producing an unsaturated aldehyde according to claim 1 , wherein each catalyst layer in the reaction tube contains a catalyst containing a catalytically active component having a composition represented by the following formula (3):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h, 'MoBiFeCoNiXYZO\u2003\u2003(3)'}where X is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), cerium (Ce) and samarium (Sm), Y is at least one element selected from the group consisting of boron (B), phosphorus (P), arsenic (As), antimony (Sb) and tungsten (W), Z is at least one element selected from the group consisting of sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs), (a) to (g) represent an atomic proportion of each component, h is a numerical value determined by a degree of oxidation of a catalyst component, a=0.40 to 2.0, b=1 to 3, c=3 to 7.5, d=2 to 4, e=0 to 10, f=0 to 10, g =0.01 to 0.50, h is a numerical value for satisfying oxidation states of the other ...

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Номер записи: 64
21-04-2016 дата публикации

METHOD FOR PRODUCING ACROLEIN

Номер: US20160107968A1
Автор: Jakob Harald, Mueller Helmut, ROTH Philipp, Steffan Martin, WECKBECKER Christoph
Принадлежит: EVONIK DEGUSSA GmbH

The present invention relates to a process for preparing acrolein from propylene by catalytic gas phase oxidation with molecular oxygen (for example air). The invention further relates to the use of particular propylene-containing starting materials, for example refinery grade propylene, for preparation of acrolein. 1. Process for preparing acrolein by catalytic gas phase oxidation , said process comprising the following steps:a) providing a reaction gas comprising propylene and molecular oxygen, andb) contacting the reaction gas with an oxidation catalyst to form a gas mixture comprising acrolein, the oxidation catalyst being a mixed oxide catalyst comprising or consisting of one or more base components selected from molybdenum, vanadium and tungsten,{'sub': 2', '4', '3', '4', '8', '4', '6', '5', '10', '5', '8, 'characterized in that more than 10 ppm by weight of sulphur in the form of any sulphur components is present in the reaction gas provided, but not more than 5000 ppm by weight of sulphur in the form of any sulphur components and not more than 5000 ppm by weight of unsaturated hydrocarbons selected from the group consisting of CH, CH, C4H, CH, CH, CHand mixtures thereof is present in each case in the reaction gas provided.'}2. Process according to claim 1 , characterized in that more than 50 ppm by weight of unsaturated hydrocarbons selected from the group consisting of CH claim 1 , CH claim 1 , CH claim 1 , CH claim 1 , CH claim 1 , CHand mixtures thereof is present in the reaction gas provided.3. Process according to claim 1 , characterized in that more than 20 ppm by weight but not more than 1000 ppm by weight of sulphur in the form of any sulphur components is present in the reaction gas provided.4. Process according to claim 1 , characterized in that more than 20 ppm by weight of sulphur in the form of HS and/or SObut not more than 1000 ppm by weight of sulphur in the form of any sulphur components is present in the reaction gas provided.5. Process ...

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Номер записи: 65
23-04-2015 дата публикации

MULTIFUNCTIONAL POROUS ARAMIDS (AEROGELS) AND FABRICATION THEREOF

Номер: US20150111976A1
Автор: Leventis Nicholas, Saeed Malik Adnan, Sotiriou-Leventis Chariklia
Принадлежит:

The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and may be derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid or a ferrocene multifunctional carboxylic acid with a polyfunctional aromatic isocyanate at moderate reaction conditions followed by drying with liquid CO. Also disclosed are various methods of use of these polyamide aerogels in a variety of applications. 2. The ferrocene carboxamide aerogel of having a hyperbranched structure.4. The ferrocene carboxamide aerogel of claim 3 , in which each of the linking bonds on the phenyl rings is attached at the 4-position of its respective phenyl ring.7. The ferrocene carboxamide aerogel of claim 6 , in which each of the linking bonds on the phenyl rings is attached at the 4-position of its respective phenyl ring.8. The ferrocene carboxamide aerogel of obtained by the reaction of 1 claim 6 ,1′-ferrocene dicarboxylic acid with a tris(isocyanato) compound of the formula G(N═C═O) claim 6 , followed by decarboxylation; wherein G represents a group as defined in .9. The ferrocene carboxamide aerogel of wherein the tris(isocyanato) compound is tris(4-isocyanatophenyl)methane.10. A method for producing a polymeric ferrocene carboxamide aerogel comprising the reaction step of mixing together a multifunctional ferrocene carboxylic acid and a polyfunctional aromatic isocyanate in an anhydrous aprotic solvent.11. The method of wherein the polyfunctional aromatic isocyanate is tris(4-isocyanatophenyl)methane.12. The method of wherein the multifunctional ferrocene carboxylic acid is 1 ...

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Номер записи: 66
27-04-2017 дата публикации

PROCESS FOR DIRECT SYNTHESIS OF (METH)ACROLEIN FROM ETHERS AND/OR ACETALS

Номер: US20170113990A1
Автор: Dubois Jean-Luc
Принадлежит:

The subject matter of the present invention is a process for direct synthesis of (meth)acrolein from a reactive mixture comprising at least one compound chosen from ethers, acetals or hemiacetals derived from linear alcohols comprising from 1 to 3 carbon atoms. Examples of compounds are dimethyl ether, diethyl ether, methyl ethyl ether, dimethoxymethane, diethoxymethane, dipropoxymethane, 1,1-dimethoxyethane or 1,1-diethoxyethane. The process of the invention comprises two successive phases: oxidation then aldol condensation, which can be carried out in the presence of a solid oxidation catalyst chosen from molybdenum-based catalysts and optionally of an aldol condensation catalyst. These two phases are carried out in a reaction system comprising a single reactor or optionally two reactors in cascade. 110-. (canceled)11. A process for direct synthesis of (meth)acrolein comprising i) reacting a reactive mixture comprising at least one reactive compound , oxygen and a non-reactive diluent gas , in a reaction assembly operated in the gas phase at a temperature of between 200° C. and 400° C. and at a pressure of between 1 and 10 bar , in the presence of a solid oxidation catalyst chosen from molybdenum-based catalysts and optionally of an aldol condensation catalyst , and then {'sub': '1', 'wherein the at least one reactive compound comprises a compound of formula (I) R—O—'}, 'ii) recovering gas effluent comprising the (meth)acrolein formed in the presence of water coproduced by the reaction,'}{'sub': '2', 'Rwherein,'}{'sub': '1', 'Ris H or a methyl, ethyl or propyl radical, and'}{'sub': 2', '2', '3', '3', '3', '2', '3', '3', '3, 'claim-text': [{'sub': 1', '2', '1', '3, 'wherein Rand Rare identical or different, or Rand Rare identical or different, and'}, {'sub': 1', '2', '1, 'wherein, when Ris H, Ris other than a methyl, ethyl or propyl radical, failing which the reactive mixture comprises an additional reactive compound of formula (I), having Rother than H, and'}, {' ...

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Номер записи: 67
18-04-2019 дата публикации

METHODS FOR USING MACROPOROUS INERT MATERIALS IN MONOMER PRODUCTION

Номер: US20190112252A1
Автор: Xu Jinsuo
Принадлежит: Rohm and Haas Company

The present invention provides methods for monomer production, for example, acrylic acid, wherein the methods comprise oxidizing one or more reactant gases, for example, propylene, in a fixed bed reactor, preferably, two fixed bed reactors, in the presence of oxygen and a mixed metal oxide catalyst to form an oxidized gaseous mixture and, at any point in the oxidizing, feeding or flowing the one or more reactant gases or the oxidized gaseous mixture through an inert macroporous material that has a pore volume of from 0.2 cm3/g to 2.0 cm3/g, a surface area of from 0.01 to 0.6 m2/g, and wherein from 30 to 98 wt. % of the total pore volume in the inert macroporous material has a pore diameter of at least 100 μm. 1. A method for preparing monomers comprising oxidizing one or more reactant gases in a fixed bed reactor in the presence of oxygen and a mixed metal oxide catalyst to form an oxidized gaseous mixture and , at any point in the oxidizing , feeding or flowing the one or more reactant gases or the oxidized gaseous mixture through an inert macroporous material that has a pore volume of from 0.2 cm/g to 2.0 cm/g , a surface area of from 0.01 to 0.6 m/g , and wherein from 30 to 98 wt. % of the total pore volume in the inert macroporous material has a pore diameter of at least 100 μm.2. The method as claimed in claim 1 , wherein the oxidizing is conducted in two stages starting with a first stage in a first reactor containing at least one bed containing in the bed a first mixed metal oxide catalyst R1 to generate a gaseous mixture and then a second stage in a second reactor containing at least one bed containing in the bed a second mixed metal oxide catalyst R2 to generate a product comprising a monomer.3. The method as claimed in wherein the bed temperature of the second stage catalyst bed is from 250 to 380° C.4. The method as claimed in wherein the oxidation process is vapor phase oxidation of propylene to acrolein and acrylic acid.5. The method as claimed in ...

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Номер записи: 68
09-04-2020 дата публикации

Process for the production of formaldeyde-stabilized urea

Номер: US20200109108A1
Автор: John David Pach, Sam BARKER, Thomas Davison
Принадлежит: JOHNSON MATTHEY PLC

A process for the production of formaldehyde-stabilised urea is described comprising the steps of: (a) generating a synthesis gas; (b) subjecting the synthesis gas to one or more stages of water-gas shift in one or more water-gas shift reactors to form a shifted gas; (c) cooling the shifted gas to below the dew point and recovering condensate to form a dried shifted gas; (d) recovering carbon dioxide from the dried shifted gas in a carbon dioxide removal unit to form a carbon dioxide-depleted synthesis gas; (e) synthesising methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas; (f) subjecting at least a portion of the recovered methanol to oxidation with air to form formaldehyde in a stabiliser production unit; (g) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas; (h) synthesising ammonia from the ammonia synthesis gas in an ammonia production unit and recovering the ammonia; (i) reacting a portion of the ammonia and at least a portion of the recovered carbon dioxide stream in a urea production unit to form a urea stream; and (j) stabilising the urea by mixing the urea stream and a stabiliser prepared using the formaldehyde produced in the stabiliser production unit, wherein the carbon dioxide removal unit operates by means of absorption using a liquid absorbent and comprises an absorbent regeneration unit, wherein the process includes recovering a carbon dioxide-containing gas stream from the absorbent regeneration unit, compressing at least a portion of the recovered carbon dioxide-containing gas stream to form a compressed carbon dioxide-containing gas stream and passing the compressed carbon dioxide-containing gas stream to the methanol synthesis unit.

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Номер записи: 69
17-07-2014 дата публикации

Oxidative cleavage of unsaturated carboxylic acids

Номер: US20140200359A1
Автор: Richard G. Blair
Принадлежит: University of Central Florida Research Foundation Inc UCFRF

Provided are processes for the oxidative cleavage of a double bond in an unsaturated carboxylic acid. The process includes contacting the unsaturated carboxylic acid with a mild oxidizing agent and agitating the unsaturated carboxylic acid and the mild oxidizing agent for a time sufficient to cleave a double bond of the unsaturated carboxylic acid and produce a product comprising an aldehyde. The process is typically carried out in a mill, such as a ball, hammer, attrition, or jet mill.

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Номер записи: 70
07-05-2015 дата публикации

METHOD FOR PRODUCING FARNESAL USING VANADIUM COMPLEX

Номер: US20150126740A1
Автор: ARAKI Hiroshi, Inoue Munenori, TANAKA TAKESHI
Принадлежит:

The present invention provides a method for producing farnesal that is useful as a production intermediate of pharmaceuticals, agricultural chemicals and perfumes. More specifically, the present invention provides a method for producing farnesal (3), comprising reacting (E)-nerolidol (1) with an oxidizing agent in the presence of a vanadium complex of the general formula (2): 3. The production method according to claim 1 , wherein the vanadium complex of the general formula (2) is formed in the reaction system.5. The production method according to claim 1 , wherein Ris an alkyl group having 1 to 20 carbon atoms.6. The production method according to claim 1 , wherein Ris a 3 claim 1 ,7 claim 1 ,11-trimethyl-1 claim 1 ,6 claim 1 ,10-dodecatrien-3-yl group or 3 claim 1 ,7 claim 1 ,11-trimethyl-2 claim 1 ,6 claim 1 ,10-dodecatrienyl group.7. The production method according to claim 2 , wherein the vanadium compound selected from a compound of the general formula (4a) or a metavanadate salt is triisopropoxyvanadium (V) oxide claim 2 , bis(acetylacetonato)oxovanadium (IV) or ammonium metavanadate.8. The production method according to claim 1 , wherein the amount of the vanadium complex of the general formula (2) used is 0.05 moles to 0.2 moles based on 1 mole of the (E)-nerolidol of formula (1).9. The production method according to claim 1 , wherein the oxidizing agent is air claim 1 , oxygen claim 1 , dimethylsulfoxide or tetramethylenesulfoxide.10. The production method according to carried out in an aromatic solvent.11. The production method according to carried out at a temperature of 80° C. to 140° C. The present invention relates to a method for producing farnesal from (E)-nerolidol using a vanadium complex. In addition, the present invention relates to a novel vanadium complex and a production method thereof.Farnesal (3,7,11-trimethyl-2,6,10-dodecatrienal) is known to be an important compound used as a production intermediate of pharmaceuticals, agricultural ...

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Номер записи: 71
07-05-2015 дата публикации

Process For Producing Shaped Catalyst And Process For Producing Diene Or Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid Using The Shaped Catalyst

Номер: US20150126774A1
Автор: Hino Yumi, Hiraoka Ryota, Motomura Hiroki, Okumura Kimito, Sugiyama Motohiko
Принадлежит:

There is provided a process for producing a shaped catalyst for a fixed bed oxidation reaction or a fixed bed oxidative dehydrogenation reaction, the catalyst having both of sufficient mechanical strength and catalyst performance, and the catalyst is produced by supporting a catalyst powder containing a complex metal oxide having molybdenum as an essential ingredient on an inert support by a tumbling granulation method at a relative centrifugal force of 1 to 35G. 1. A process for producing a shaped catalyst for a fixed-bed oxidation reaction or a fixed-bed oxidative dehydrogenation reaction , comprising:supporting a catalyst powder containing a complex metal oxide having molybdenum as an essential ingredient on an inert support by a tumbling granulation method at a relative centrifugal force of 1 to 35G.2. The process for producing a shaped catalyst according to claim 1 , {'br': None, 'sub': a', 'b', 'c', 'd', 'f', 'g', 'h', 'x, 'MoBiNiCoFeXYO\u2003\u2003Formula (1)'}, 'wherein the complex metal oxide has a composition represented by the following formula (1)wherein Mo, Bi, Ni, Co, Fe and O represents molybdenum, bismuth, nickel, cobalt, iron and oxygen, respectively;X represents at least one element selected from the group consisting of tungsten, antimony, tin, zinc, chromium, manganese, magnesium, silicon, aluminum, cerium, tellurium, boron, germanium, zirconium and titanium;Y represents at least one element selected from the group consisting of potassium, rubidium, calcium, barium, thallium and cesium;a, b, c, d, f, g, h and x represents numbers of atoms of molybdenum, bismuth, nickel, cobalt, iron, X, Y and oxygen, respectively, and a=12, b=0.1 to 7, c+d=0.5 to 20, f=0.5 to 8, g=0 to 2, h=0.005 to 2, and x=a value determined depending on oxidation states of individual elements.3. The process for producing a shaped catalyst according to claim 1 ,wherein an attrition degree of the shaped catalyst to be produced is 3% by weight or less.4. The process for producing ...

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Номер записи: 72
27-05-2021 дата публикации

METHOD FOR PRODUCING AT LEAST ONE OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID AND CATALYST FOR PRODUCING AT LEAST ONE OF UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID

Номер: US20210155569A1
Автор: Hiraoka Ryota, Kawamura Tomoyuki, Nakano Takanori, YASUDA Shogo
Принадлежит: Nippon Kayaku Kabushiki Kaisha

Provided is a method for producing at least one of an unsaturated aldehyde and an unsaturated carboxylic acid from an alkene by an oxidation reaction, in which a n-layered catalyst layer (n≥2) is provided in a gas flow direction in a reaction tube, two or more kinds of catalysts having different activities are used; and the catalysts are packed in such a manner that dT≤20° C. is satisfied, when a difference between a temperature PTof an exothermic peak in a n-th layer as counted from a gas inlet and a minimum value mTof a temperature of a catalyst layer which appears between an exothermic peak in a (n−1)th layer and an exothermic peak in a n-th layer from the gas inlet is represented as dT (=PT−mT), and the change rate of dT is 2.5 or less at a reaction bath temperature within a range of ±6° C. of a reaction bath temperature at which the highest yield is obtained. 1. A method for producing at least one of an unsaturated aldehyde and an unsaturated carboxylic acid from an alkene by an oxidation reaction ,wherein a n-layered catalyst layer (n≥2) is provided in a gas flow direction in a reaction tube,two or more kinds of catalysts having different activities are used; and{'sub': n', 'n-1', 'n', 'n-1, 'the catalysts are packed in such a manner that dT≤20° C. is satisfied, when a difference between a temperature PTof an exothermic peak in a n-th layer as counted from a gas inlet and a minimum value mTof a temperature of a catalyst layer which appears between an exothermic peak in a (n−1)th layer and an exothermic peak in a n-th layer from the gas inlet is represented as dT (=PT−mT), and'}the change rate of dT is 2.5 or less at a reaction bath temperature within a range of ±6° C. of a reaction bath temperature at which the highest yield is obtained.2. The method for producing at least one of an unsaturated aldehyde and an unsaturated carboxylic acid according to claim 1 ,wherein at the reaction bath temperature within a range of ±6° C. of the reaction bath temperature at ...

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Номер записи: 73
14-05-2015 дата публикации

Mechanically stable hollow cylindrical shaped catalyst bodies for gas phase oxidation of an alkene to an unsaturated aldehyde and/or an unsaturated carboxylic acid

Номер: US20150133686A1
Автор: Cathrin Alexandra Welker-Nieuwoudt, Christian Walsdorff, Cornelia Katharina Dobner, Holger Borchert, Josef Macht, Stefan Lipp, Ulrich Hammon
Принадлежит: BASF SE

A hollow cylindrical shaped catalyst body for gas phase oxidation of an alkene to an α,β-unsaturated aldehyde and/or an α,β-unsaturated carboxylic acid comprises a compacted multimetal oxide having an external diameter ED, an internal diameter ID and a height H, wherein ED is in the range from 3.5 to 4.5 mm; the ratio q=ID/ED is in the range from 0.4 to 0.55; and the ratio p=H/ED is in the range from 0.5 to 1. The shaped catalyst body is mechanically stable and catalyzes the partial oxidation of an alkene to the products of value with high selectivity. It provides a sufficiently high catalyst mass density of the catalyst bed and good long-term stability with acceptable pressure drop.

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Номер записи: 74
14-05-2015 дата публикации

PROCESS FOR PREPARING AN UNSATURATED ALDEHYDE AND/OR AN UNSATURATED CARBOXYLIC ACID

Номер: US20150133687A1
Автор: Dobner Cornelia Katharina, Hammon Ulrich, Macht Josef, WALSDORFF Christian, WELKER-NIEUWOUDT Cathrin Alexandra
Принадлежит: BASF SE

An α,β-unsaturated aldehyde and/or an α,β-unsaturated carboxylic acid are prepared by gas phase oxidation of alkene with molecular oxygen over a fixed catalyst bed comprising a bed of hollow cylindrical shaped catalyst bodies having a multimetal oxide active composition. The fixed catalyst bed comprises at least three successive reaction zones; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor outlet; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor inlet; and the value WT=(ED−ID)/2 in the reaction zone in which the highest local temperature in the fixed catalyst bed occurs is lower than in the other reaction zones, in which ED is the external diameter and ID is the internal diameter of the shaped catalyst body. The yield of the products of value is enhanced in this way. 2. The process according to claim 1 , wherein the multimetal oxide active composition comprises iron claim 1 , bismuth and at least one of molybdenum and tungsten.4. The process according to claim 1 , wherein the cylindrical shaped catalyst bodies have a geometric volume of less than 80 mm.5. The process according to claim 1 , wherein a volume-specific catalyst activity of the reaction zone in which the highest local temperature in the fixed catalyst bed occurs is lower than volume-specific catalyst activity in the other reaction zones.6. The process according to claim 1 , wherein a catalyst active composition density in the reaction zone in which the highest local temperature in the fixed catalyst bed occurs is lower than catalyst active composition densities in the other reaction zones.7. The process according to claim 1 , wherein the cylindrical shaped catalyst bodies have a density of from 1.2 to 2.0 g/cm.8. The process according to claim 1 , whereinthe external diameter of the cylindrical shaped catalyst bodies in the reaction zone in which the highest local ...

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Номер записи: 75
01-09-2022 дата публикации

PRODUCTION OF ACROLEIN OR ACRYLIC ACID FROM ALLYL ALCOHOL WITH HIGH YIELD AND LOW IMPURITY

Номер: US20220274905A1
Автор: Xu Jinsuo
Принадлежит:

Acrolein is produced by selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst. 1. A method comprising:selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase to produce acrolein,wherein the first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth.2. The method according to claim 1 , wherein a mass ratio of propionaldehyde to acrolein is less than 0.001.3. The method according to claim 1 , further comprising selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase claim 1 , wherein the second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.4. The method according to claim 3 , wherein the second mixed metal oxide catalyst comprises oxides of molybdenum and vanadium.5. The method according to claim 4 , wherein the second mixed metal oxide catalyst further comprises at least one additional element selected from the group consisting of tungsten claim 4 , copper claim 4 , iron claim 4 , antimony claim 4 , and phosphorus.6. The method according to any one of the preceding claims claim 4 , wherein the first mixed metal oxide catalyst further comprises at least one additional element selected from the group consisting of iron claim 4 , cobalt claim 4 , and nickel.7. The method according to any one of the preceding claims claim 4 , wherein the oxygen is present in the form of purified oxygen claim 4 , air claim 4 , or lattice oxygen of the mixed metal oxide.8. The method according to ...

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Номер записи: 76
17-05-2018 дата публикации

MIXED METAL OXIDE AMMOXIDATION CATALYSTS

Номер: US20180133699A1
Автор: Brazdil James F., Toft Mark A.
Принадлежит: INEOS EUROPE AG

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising rubidium, bismuth, cerium, molybdenum, iron and other promoters, with a desirable composition. 1. A catalytic composition comprising a complex of metal oxides wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'n', 'x, 'MoBiFeADEFGCeRbO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon lead and germanium;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and, 'wherein A is at least one element selected from the group consisting of lithium, sodium, potassium, and cesium; and'} a is greater than 0, but less than or equal to 7,', 'b is 0.1 to 7,', 'c is greater than 0, but less than or equal to 5,', 'd is 0.1 to 12,', 'e is 0 to 5,', 'f is 0 to 5,', 'g is 0 to 0.2,', 'h is 0.01 to 5,', 'm is 10 to 15,', 'n is greater than 0, but less than or equal to 5,', 'x is the number of oxygen atoms required to satisfy the valence requirements of the other component elements present; and, 'a, b, c, d, e, f, g, ...

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Номер записи: 77
26-05-2016 дата публикации

Method For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid

Номер: US20160145181A1
Автор: Kurakami Tatsuhiko, NAKAZAWA Yuuta, Shiraishi Kazuo
Принадлежит:

Provided is a method capable of producing acrolein and/or acrylic acid, or methacrolein and/or methacrylic acid, stably in a high yield over a long period of time advantageously even in a high-load reaction, and the method is a method in which when preparing two or more kinds of catalysts having different formulations and stacking two or more layers in the axial direction of the tube, the catalysts are filled in such a manner that not only the component amount of bismuth relative to molybdenum decreases from the gas inlet side toward the gas outlet side, but also the component amount of iron relative to molybdenum increases from the gas inlet side toward the gas outlet side. 1. A method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid , the method comprising:subjecting an alkene to gas-phase catalytic partial oxidation with molecular oxygen by using a multitubular oxidation reactor having a complex metal oxide catalyst filled therein, thereby producing a corresponding unsaturated aldehyde and/or unsaturated carboxylic acid,wherein when preparing two or more kinds of catalysts having different formulations and stacking two or more layers in an axial direction of a tube, thereby achieving multilayer filling, the catalysts are filled in such a manner that not only a component amount of bismuth relative to molybdenum decreases from a gas inlet side toward a gas outlet side, but also a component amount of iron relative to molybdenum increases from the gas inlet side toward the gas outlet side.2. The production method according to claim 1 , {'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h, 'MoBiFeCoNiXYZO\u2003\u2003Formula (1)'}, 'wherein the catalyst for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid contains a compound represented by the following formula (1), the catalyst being prepared by a method in which in a step of preparing the compound represented by the following formula (1): a molybdenum ...

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Номер записи: 78
24-05-2018 дата публикации

PROCESS FOR PREPARING A MACROCYCLIC DIKETONE

Номер: US20180141888A1
Автор: BRU ROIG Miriam, ERNST Andreas, FENLON Thomas, Rüdenauer Stefan
Принадлежит:

The present invention relates to a process for preparing a macrocyclic diketone compound of the formula (I), which comprises the oxidation of a bicycloolefine compound of the formula (II) with an oxidizing agent, formulae (I) (II) where in formulae (I) and (II) A is (CH)with n being an integer from 2 to 12, where two hydrogen atoms may be replaced by C-C-alkyl, in particular methyl, or two hydrogen atoms, which are bound to adjacent carbon atoms may be replaced by a fused 5- or 6-membered saturated carbocycle; B is (CH)with m being 1 or 2, where 1 or 2 hydrogen atoms may be replaced by C-C-alkyl, in particular methyl. 114.-. (canceled)16. The process of claim 15 , where the total amount of the ruthenium compound in the reaction mixture claim 15 , calculated based on the number of ruthenium atoms claim 15 , is in the range of from 0.001 to 0.2 mol per 1 mol of compound of formula (II).17. The process of claim 15 , where the ruthenium compound is selected from the group consisting of ruthenium oxides claim 15 , ruthenates claim 15 , perruthenates claim 15 , ruthenium halides claim 15 , ruthenium nitrates and mixtures thereof.18. The process of claim 15 , where the total amount of the co-oxidizing agent used in the oxidation is in the range of from 2 to 10 mol per 1 mol of compound of formula (II) claim 15 , calculated as oxygen equivalent.19. The process of claim 15 , where the co-oxidizing agent is selected from hypochlorites.20. The process of claim 15 , where the pH of the reaction mixture is maintained in the range of from 7 to 14 during the oxidation of the compound of formula (II).21. The process of claim 20 , where the maintenance of the pH is achieved by adding an aqueous buffer solution claim 20 , comprising at least one buffering agent claim 20 , having a pKa-value in the range of from 8 to 12 claim 20 , to the reaction mixture.22. The process of claim 15 , where the co-oxidizing agent is added to the reaction mixture in the form of an alkaline aqueous ...

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Номер записи: 79
04-06-2015 дата публикации

Supported noble metal-comprising catalyst for oxidative dehydrogenation or epoxidation

Номер: US20150151278A1
Автор: Christian Baltes, Georg Seeber, Sabine Huber, Tobias Rosendahl
Принадлежит: BASF SE

Supported noble metal-comprising catalysts which can be obtained by a1) application of a noble metal compound, optionally in admixture with additives acting as promoters, to a support material, then drying, and a2) application of a reducing agent to a support material, then drying, wherein steps a1) and a2) are repeated simultaneously or in alternating turns, or wherein either of the compounds is applied entirely and then the other one is applied entirely, b) optionally afterwards drying of the resulting product, and c) subsequent calcination, its use, especially for oxidative dehydrogenation and a process for producing it.

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Номер записи: 80
15-09-2022 дата публикации

METHOD FOR PRODUCING (METH)ACROLEIN AND METHOD FOR PRODUCING (METH)ACRYLIC ACID

Номер: US20220289658A1
Автор: Abe Yoshimune, NAKAMURA Takuya, Ogawa Yasushi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

A method for producing (meth)acrolein by vapor-phase catalytic oxidation of propylene or isobutylene in a multitubular reactor including a plurality of reaction tubes, the reaction tubes each including a reaction zone filled with a catalyst including molybdenum oxide and a cooling zone filled with an inert substance, wherein a temperature of a heat medium that flows outside the cooling zone is lower than a temperature of a heat medium that flows outside the reaction zone, and wherein the inert substance includes an inert substance having a major-axis length that is equal to or more than 1.7 times a major-axis length of the catalyst. A method for producing (meth)acrylic acid in which (meth)acrolein thus produced is converted to (meth)acrylic acid by vapor-phase catalytic oxidation. 1. A method for producing (meth)acrolein by vapor-phase catalytic oxidation of propylene or isobutylene in a multitubular reactor including a plurality of reaction tubes , the reaction tubes each including a reaction zone filled with a catalyst including molybdenum oxide and a cooling zone filled with an inert substance ,wherein a temperature of a heat medium that flows outside the cooling zone is lower than a temperature of a heat medium that flows outside the reaction zone, andwherein the inert substance includes an inert substance having a major-axis length that is equal to or more than 1.7 times a major-axis length of the catalyst.2. The method for producing (meth)acrolein according to claim 1 , wherein the inert substance includes an inert substance having a thermal conductivity represented by Formula (1) below.{'br': None, 'Thermal conductivity of inert substance≤Thermal conductivity of molybdenum oxide×0.1 \u2003\u2003(1)'}3. The method for producing (meth)acrolein according claim 1 , wherein the inert substance includes a ring-shaped inert substance.4. The method for producing (meth)acrolein according to claim 3 , wherein an inside diameter of the ring-shaped inert substance is ...

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Номер записи: 81
31-05-2018 дата публикации

PROCESS FOR ALDEHYDE MANUFACTURE

Номер: US20180148399A1
Автор: HOLMBERG Johan Björn Mattias
Принадлежит:

The process of the invention is a process for the production of an aldehyde from the corresponding alcohol comprising the steps of feeding to a reactor a feed stream comprising said alcohol and an oxygen-containing gas; reacting said alcohol in the gas phase with said oxygen-containing gas in said reactor in the presence of a catalyst comprising oxides of iron and molybdenum, wherein the process further comprises the step of adding water to said feed stream. The process is particularly useful for the production of formaldehyde by the oxidation of methanol. 1. A process for the production of an aldehyde from the corresponding alcohol , comprising:feeding to a reactor a feed stream comprising said alcohol and an oxygen-containing gas;reacting said alcohol in the gas phase with said oxygen-containing gas in said reactor in the presence of a catalyst comprising oxides of iron and molybdenum; andadding water to said feed stream.2. The process according to claim 1 , wherein said reactor is operated at an inlet pressure of at least 1.5 bar G.3. The process according to claim 1 , wherein said oxygen-containing gas is air.4. A process according to claim 1 , wherein a portion of said feed stream comprises a recycled product stream from said process.5. The process according to claim 1 , wherein said feed stream comprises an alkyl ether.6. The process according to claim 5 , wherein said feed stream comprises at most 3% by volume of said alkyl ether.7. The process according to claim 1 , wherein water is added to said feed stream in an amount to produce a feed stream comprising water at a concentration of from 3% to 10% by volume of said feed stream.8. The process according to claim 1 , wherein said feed stream comprises alcohol at a concentration of from 1% to 20% by volume of said feed stream.9. The process according to claim 1 , wherein said catalyst comprises an alkali metal or an alkaline earth metal in addition to said oxides of iron and molybdenum.10. The process according ...

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Номер записи: 82
11-06-2015 дата публикации

Method for Production of Styrene from Toluene and Methanol

Номер: US20150158793A1
Автор: Butler James R., Pelati Joseph E.
Принадлежит:

A process is disclosed for making styrene by converting methanol to formaldehyde in a reactor then reacting the formaldehyde with toluene to form styrene in a separate reactor. 121-. (canceled)22. A process for making styrene comprising:converting methanol to formaldehyde in one or more first reactors to form a first product stream comprising formaldehyde;passing the first product stream to a separation stage for separating formaldehyde from the first product stream; andreacting toluene and formaldehyde in one or more second reactors over a catalyst comprising a metal supported on a substrate to form a second product stream comprising styrene, wherein the substrate comprises silica or titania, and wherein the metal comprises Ru, Rh, Ni, Co, Pd or Pt.23. The process of claim 22 , wherein the catalyst is promoted with Mn claim 22 , Ti claim 22 , Zr claim 22 , V claim 22 , Nb claim 22 , K claim 22 , Cs or Na.24. The process of claim 22 , wherein the catalyst includes one or more promoters selected from alkali elements claim 22 , alkaline earth elements claim 22 , and rare earth elements.25. The process of claim 22 , wherein the catalyst includes one or more promoters selected from a group consisting of Y claim 22 , Zr claim 22 , Nb claim 22 , and combinations thereof26. The process of claim 22 , wherein the catalyst is basic or neutral.27. The process of claim 22 , wherein the toluene is reacted with the formaldehyde at a temperature ranging from 250° C. to 750° C.28. The process of claim 22 , wherein the toluene is reacted with the formaldehyde at a pressure ranging from 1 atm to 70 atm.29. The process of claim 22 , wherein the first product stream further comprises one or more of hydrogen claim 22 , water claim 22 , or methanol.30. The process of claim 22 , wherein methanol is separated from the first product stream and recycled to the one or more first reactors.31. The process of claim 22 , further comprising utilizing one or more oxidation reactors to convert ...

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Номер записи: 83
21-08-2014 дата публикации

PROCESS FOR PREPARING SAXAGLIPTIN AND ITS NOVEL INTERMEDIATES USEFUL IN THE SYNTHESIS THEREOF

Номер: US20140235870A1
Автор: Kannapan Jayaraman, Kovi Ravishanker, Madala Muralikrishna, Naik Ashish, Rapole KeshavRao, THAKOR SANJAY
Принадлежит: APICORE, LLC

Methods of making saxagliptin, pharmaceutically acceptable salts and hydrates thereof and intermediates thereof. 2. The method according to wherein the reducing agent is sodium dihydro-bis-methoxyethoxy aluminate solution in toluene. This application claims priority to and is a divisional of U.S. patent application Ser. No. 13/479,975 filed May 24, 2012, which claims the benefit of U.S. Provisional Patent Application 61/489,478 filed May 24, 2011, the entireties of which are incorporated herein by reference.The present subject matter relates to methods of making saxagliptin, pharmaceutically acceptable salts and hydrates thereof and intermediates thereof.Saxagliptin is a dipeptidyl peptidase (DPP) IV inhibitor useful in the treatment of diabetes. Saxagliptin is understood to slow the breakdown of incretin hormones, thereby increasing the levels of these hormones in the body, which in turn increases the production of insulin in response to meals and decreases the amount of glucose produced by the liver.In accordance with the present disclosure, processes for the manufacture of saxagliptin, intermediates and derivatives thereof, are provided which include in one embodiment two amino acid derivatives (A) and (B), described in further detail hereinbelow, coupled in the presence of a coupling reagent. The amide coupling of (S)-α[[(1,1-dimethyleethoxy)carbonyl]amino]-3-hydroxytricyclo[3.3.1.1]decane-1-acetic acid (A) and (1S,3S,5S)-2-azabicyclo[3.1.0]hexane-3-carboxamide (B), subsequent dehydration of the primary amide and deprotection of the amine affords saxagliptin (C).In further embodiments, also provided are methods for asymmetric reductive amination of the intermediate compound (S)-amino-(3-hydroxy-adamantan-1-yl)-acetic acid used in the production of cyclopropyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV. Additional intermediate compounds and methods for their production are also provided. DPP IV inhibitors, pharmaceutically acceptable salts and ...

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Номер записи: 84
09-06-2016 дата публикации

NOVEL METAL FREE PROCESS FOR ALLYLIC OXIDATION

Номер: US20160159717A1
Автор: Bhaskarrao, CHAVAN Subhash, LASONKAR Pradeep, Prataprao
Принадлежит:

The patent discloses a novel metal free process for the preparation of corresponding phenol and ketone via allylic oxidation of substituted cyclohexenes. Air is used as oxidant in the present process and can be used as such or optionally selected from pure oxygen or atmospheric oxygen. Moreover, the process of the present invention utilizes easily available starting materials and is a green eco-friendly, convenient and economical process with high yield of >60% and high selectivity 2. The process according to , wherein the extraction step involves filtering the product of step (a) of ; treating the filtrate with water; extracting with solvents such as EtOAc; washing the organic extracts with brine , dried (anhydrous NaSO) , filtering the organic extract and removing the solvent in vacuo.3. The process according to claim 1 , wherein the purification is done preferably by column chromatography claim 1 , most preferably by flash column chromatography claim 1 ,4. The process according to claim 1 , wherein the solvent is selected from water claim 1 , alcohol-linear or branched selected from methanol or isopropyl alcohol claim 1 , methyl cyanide or dimethyl formamide or degassed dimethyl formamide claim 1 , either alone or in combination with tetra hydro furan.5. The process according to claim 1 , wherein the base is selected from alkali carbonates claim 1 , preferably Potassium carbonate and Cesium carbonate claim 1 , 1 claim 1 ,4-diazabicyclo[2.2.2]octane claim 1 , 4-dimethylaminopyridine claim 1 , 2 claim 1 ,6-lutidine claim 1 , triphenylphosphine claim 1 , imidazole claim 1 , triethylamine or pyridine.6. The process according to claim 1 , wherein air is used as oxidant and can be used as such or optionally selected from pure oxygen or atmospheric oxygen.7. The process according to or claim 1 , wherein the yield of phenol compound of Formula I or ketone compound of Formula II is >60%.8. The process according to claim 1 , wherein the temperature is preferably in the ...

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Номер записи: 85
09-06-2016 дата публикации

USES OF CERTAIN PLATINOID ACCUMULATING PLANTS FOR USE IN ORGANIC CHEMICAL REACTIONS

Номер: US20160159934A1
Автор: BES Clemence, ESCANDE Vincent, GRISON Claude, RENARD Brice-Loic
Принадлежит:

A composition derived from the acid treatment of ashes obtained after heat treatment of selected plants or plant material is provided. The selected plants accumulate metal from the platinum group (platinoids). The compositions can be used to produce catalysts for performing various organic synthesis reactions. 1Peltandra virginicaCucumis sativusLepidium sativumElodea canadensisSpinacia oleraceaEicchornia crassipesMedicago sativaZea maysSinapis albaBrassica junceaHordeum vulgareUrtica dioicaPhacelia tanacetifoliaRaphanus sativusLolium perenneLolium multiflorumSetaria verticillataNicotiana tabacumSinapis albaBrassica junceaLolium multiflorum. A method of performing organic synthesis reactions utilizing a composition as a catalyst , the composition comprising a metal catalyst originating after acid treatment of ashes obtained after heat treatment of a plant or part of a plant belonging to one of the genera chosen from green arrow arum () , cucumber () , garden cress () , Canadian pondweed () , spinach () , water hyacinth () , alfalfa () , maize () , white mustard () , brown mustard () , barley () , nettle () , lacy phacelia () , radish () , perennial rye-grass () , Italian rye-grass () , hooked bristlegrass () and tobacco () , preferably white mustard () , brown mustard () , Italian rye-grass () ,said plant having accumulated at least one of the platinoids chosen from platinum, palladium, osmium, iridium, ruthenium, rhodium, preferably platinum (Pt), palladium (Pd) or rhodium (Rh),the metal catalyst comprising metal or metals of which are chosen from the metals originating from said plant, and the metal or metals of which present in the composition originate exclusively from the plant before calcination and preferably without the addition of metal coming from an origin other than said plant.2. The method according to characterized in that the heat treatment of a plant or part of a plant is carried out in air.3. The method according to characterized in that the heat ...

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Номер записи: 86
23-05-2019 дата публикации

RIPENING OF 1,4-BIS (4-PHENOXYBENZOYL)BENZENE

Номер: US20190152886A1
Автор: AMSTUTZ Jérome, JOUANNEAU Julien, VINCENT Guillaume
Принадлежит: Arkema France

A method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), including: reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture including a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex; contacting the product mixture with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoylbenzene); heating at least the second phase up to a maximum temperature, followed by cooling the second phase down to a separation temperature; subjecting at least the second phase to a solid/liquid separation step at the separation temperature, so as to recover solid 1,4-bis(4-phenoxybenzoylbenzene). 1. A method for manufacturing 1 ,4-bis(4-phenoxybenzoylbenzene) , comprising:reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture comprising a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex;contacting the product mixture with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoylbenzene);heating at least the second phase up to a maximum temperature, followed by cooling at least the second phase down to a separation temperature;subjecting at least the second phase to a solid/liquid separation step at the separation temperature, so as to recover solid 1,4-bis(4-phenoxybenzoylbenzene).2. The method of claim 1 , wherein the first phase and the second phase are separated before subjecting the second phase to heating and cooling down.3. The method of claim 1 , wherein both the first phase and the second phase are subjected to heating and cooling down.4. The method of claim 1 , wherein from 30 to 99.9 wt. % claim 1 , of the 1 claim 1 ,4-bis(4-phenoxybenzoylbenzene) contained in the second phase is dissolved in the second phase at the maximum temperature.5. The method of ...

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Номер записи: 87
15-06-2017 дата публикации

Process of preparing 4-methyl-3-decen-5-one

Номер: US20170166504A1
Автор: Alexandra Velty, Amadeo Fernández MIRANDA, Avelino Corma Canos, Jaime Renovell Gomez, Manuel Querol Sans, Sara Iborra Chornet
Принадлежит: International Flavors and Fragrances Inc

A method of preparing 4-methyl-3-decen-5-one. The method includes the step of oxidizing 4-methyl-3-decen-5-ol in the presence of (i) oxygen and (ii) a metal catalyst, wherein the metal catalyst contains a catalytic metal deposited on nanoparticle support.

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Номер записи: 88
15-06-2017 дата публикации

CHEMICAL FILM ON SUBSTRATE AND METHOD OF FORMING THE SAME, METHOD OF FORMING PARACYCLOPHANE CONTAINING FUNCTIONAL GROUND WITH DISULFIDE BOND

Номер: US20170166520A1
Автор: Chen Hsien-Yeh, Guan Zhen-Yu, Wu Chih-Yu
Принадлежит:

The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3′-dithiodipropionic acid (DPDPA) and N-ethyl-N′-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and is formed on a substrate by a chemical vapor deposition process. 1. A method of forming paracyclophane containing disulfide functional group , comprising:adding 3,3′-dithiodipropionic acid (DPDPA) and N-ethyl-N′-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane, thereby obtaining a paracyclophane comprising a disulfide functional group.2. The method of forming paracyclophane containing disulfide functional group according to claim 1 , wherein the disulfide functional group comprises a thiol-disulfide carboxylic acid end.3. The method of forming paracyclophane containing disulfide functional group according to claim 1 , wherein the paracyclophane is 4-(3-((3-methylamido)-disulfide) propanoic acid) [2 claim 1 ,2] paracyclophane.4. The method of forming paracyclophane containing disulfide functional group according to claim 1 , wherein 4-aminomethyl [2 claim 1 ,2] paracyclophane is prepared by:{'sub': 6', '4', '2', '2', '4, 'adding potassium phthalimide (KCH(CO)N) and hydrazine (NH) into 4-bromomethyl [2,2] paracyclophane to form 4-aminomethyl [2,2] paracyclophane.'}5. The method of forming paracyclophane containing disulfide functional group according to claim 4 , wherein 4-bromomethyl [2 claim 4 ,2] paracyclophane is prepared by:{'sub': '3', 'adding phosphorus tribromide (PBr) into 4-hydroxymethyl [2,2] paracyclophane, to form 4-bromomethyl [2,2] paracyclophane.'}6. The method of forming paracyclophane containing disulfide functional group according to claim 5 , wherein 4-hydroxymethyl [2 ...

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Номер записи: 89
23-06-2016 дата публикации

PROCESS FOR THE OXIDATION OF CYCLOHEXANE

Номер: US20160176813A1
Автор: VALDEZ David Lee
Принадлежит: INVISTA NORTH AMERICA S.A R.L.

A reaction zone is provided comprising a plurality of oxygen clean up zones and a plurality of oxidation zones. A first stream is introduced to oxidation clean up zones comprising liquid cyclohexane, and optionally a cyclohexane oxidation catalyst. In addition, an oxygen containing gas is introduced into the oxidation zones. Next, the first stream is passed downwardly from the oxygen clean up zones to the oxidation zones, while cross-currently passing the oxygen containing gas upwardly from the oxidation zones to the oxygen clean up zones. The oxygen containing gas is introduced directly into the first stream as it travels through the oxidation zones, and the reaction between the first stream and the oxygen containing gas produces a product mixture. Finally, a product mixture is withdrawn from the oxidation zones that comprises CHHP, cyclohexanone and cyclohexanol. 1. A process for the oxidation of cyclohexane comprising the following steps:a) providing a reaction zone comprising a plurality of oxygen clean up zones and a plurality of oxidation zones, wherein the oxygen clean up zones and the oxidation zones are in fluid communication, and wherein the reaction zone is configured so that the oxygen clean up zones and oxidations zones are contained in a single continuous vapor space;b) introducing a first stream comprising liquid cyclohexane into the oxygen cleanup zones;c) introducing an oxygen containing gas into the oxidation zones;d) passing the first stream downwardly from the oxygen clean up zones to the oxidation zones, while cross-currently passing the oxygen containing gas upwardly from the oxidation zones to the oxygen clean up zones, wherein the oxygen containing gas is introduced directly into the first stream as it travels through the oxidation zones, and wherein the reaction between the first stream and the oxygen containing gas produces a product mixture; ande) withdrawing a product mixture from the oxidation zones that comprises cyclohexyihydroperoxide ...

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Номер записи: 90
22-06-2017 дата публикации

Process Comprising Two Reaction Zones And Apparatus Therefore

Номер: US20170173548A1
Автор: Gray Julian Stuart, Holdsworth Duncan David
Принадлежит:

In a process for carrying out a chemical reaction gaseous reactants are supplied to a first reaction zone including a first catalyst having a first particle equivalent diameter. The first reaction zone is operated such that when the reactants are contacted with the first catalyst a portion of the reactants is converted to the desired product. An intermediate stream of unreacted reactants and the desired product is removed and passed to a second reaction zone including a tubular reactor. Tubes of the reactor are catalyst carriers containing a second catalyst having a second particle equivalent diameter smaller than the first particle equivalent diameter. The second reaction zone is operated such that when the unreacted reactants are contacted with the second catalyst, at least some of the unreacted reactants are converted to the desired product. A product stream is then recovered. Apparatus for carrying out the process is also described. 2. (canceled)3. (canceled)4. (canceled)5. The process according to wherein interstage cooling is provided between the first and second reaction zones.6. The process according to wherein the first reaction zone comprises a tubular fixed bed reactor.7. (canceled)8. The process according to wherein the first and second zones are contiguous and each tube is packed with conventional catalyst in the first zone and with catalyst loaded into catalyst carriers in the second zone.9. (canceled)10. (canceled)11. The process according to wherein the first catalyst particle equivalent diameter is from about 1 mm to about 6 mm.12. (canceled)13. The process according to wherein the second catalyst particle equivalent diameter is from about 0.1 mm to about 3 mm.14. The process according to wherein a portion of the product stream is recycled to at least one of the first and second reaction zones.15. The process according to wherein at least one reactant is one of a) added to the second reaction zone claim 1 , and b) added to the intermediate stream ...

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Номер записи: 91
02-07-2015 дата публикации

Method for producing alkoxyphenol and alkoxy-hydroxybenzaldehyde

Номер: US20150183702A1
Автор: Laurent Garel
Принадлежит: Rhodia Operations SAS

The invention relates to a method for producing alkoxyphenol from hydroxyphenol, comprising an O-alkylation reaction of at least one hydroxyphenol into at least one alkoxyphenol, said reaction being carried out using an O-alkylating agent, an aqueous solvent containing a Bröensted base, and an organic solvent, with a base/O-alkylating agent ratio of between 0.5 and 1.5 in moles of base per mole of O-alkylating agent, an O-alkylating agent/hydroxyphenol ratio of between 0.5 and 2 moles of O-alkylating agent per mole of hydroxyphenol, and an organic solvent/hydroxyphenol ratio of less than 280 mL, preferably between 10 and 250 mL and more preferably still between 50 and 150 mL of organic solvent per mole of hydroxyphenol. The invention also relates to a method for producing at least one alkoxy-hydroxybenzaldehyde from at least one hydroxyphenol compound.

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Номер записи: 92
30-06-2016 дата публикации

Methods for Preparing Methacrolein from t-Butanol

Номер: US20160185698A1
Автор: Chen Yong, Chu Xiaodong, Ji Jinhua, Luo Ge, Ma Jianxue, QIN Chunhua, WU Tonghao, Zhao Xiaoqi, Zhuang Yan
Принадлежит:

A method for preparing methacrolein from t-butanol, specifically a method for preparing methacrolein by using t-butanol as a starting material, is disclosed, comprising passing the starting material through a fixed bed reactor filled with catalyst, wherein the fixed bed reactor is divided to n reaction zones from the inlet of the starting material to the outlet of the starting material and each zone is filled with catalysts of different catalytic activities; wherein the catalytic activity of the catalyst in the first reaction zone is higher than the catalytic activity of the catalyst in the second reaction zone, and the catalytic activity of the catalyst is gradually increased from the second reaction zone to the last reaction zone; and n is an integer between 3 to 10. 1. A method for producing methacrolein by using t-butanol as a starting material , comprising passing the starting material through a fixed bed reactor filled with catalysts , wherein the fixed bed reactor is divided to n reaction zones along the direction from the inlet to the outlet of the starting material , each zone is filled with a catalyst having different catalytic activity;wherein the catalytic activity of the catalyst in the first reaction zone is higher than that of the catalyst in the second reaction zone, and the catalytic activities of the catalysts are gradually increased from the second reaction zone to the last reaction zone; andn is an integer between 3 to 10.3. The method according to claim 2 , wherein the compound of formula (II) has a lower catalytic activity than that of the compound of formula (I).4. The method according to claim 1 , wherein the following catalysts are used:{'sub': 10.0', '2.0', '2.1', '1.4', '5.3', '0.5', '0.15, 'Catalyst (A): 80(MoWFeBiCoNiCs)/20SiC;'}{'sub': 10.5', '1.5', '2.5', '1.3', '6.2', '0.04', '2, 'Catalyst (B): 90(MoWFeBiCoCs)/10SiO;'}{'sub': 10.5', '1.5', '2.5', '1.3', '6.2', '0.00, 'Catalyst (C): 80(MoWFeBiCoCs)/20SiC;'}{'sub': 10.0', '2.0', '2.1', ...

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Номер записи: 93
13-06-2019 дата публикации

PROCESS FOR THE PREPARATION OF ALPHA, BETA UNSATURATED ALDEHYDES BY OXIDATION OF ALCOHOLS IN THE PRESENCE OF A LIQUID PHASE

Номер: US20190177260A1
Автор: FENYN Michaela, Keller Andreas, Teles Joaquim Henrique, Vautravers Nicolas
Принадлежит: BASF SE

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols where the oxidant is oxygen in the presence of a catalyst comprising platinum on a support in the presence of a liquid phase which contains at least 25 weight-% water based on the total weight of the liquid phase. 2. The process according to claim 1 , wherein an alcohol according to formula (II) is used claim 1 , wherein Ris H and Rand Rare CH.3. The process according to claim 1 , wherein the liquid phase contains at least 50 weight-% water based on the total weight of the liquid phase.4. The process according to claim 1 , wherein the oxidation is carried out at a temperature of 20° C. to 100° C.5. The process according to claim 1 , wherein the oxidation is carried out under a partial pressure of oxygen between 0.2 and 8 bar.6. The process according to claim 2 , wherein the liquid phase contains at least 50 weight % water based on the total weight of the liquid phase.7. The process according to claim 1 , wherein the liquid phase contains at least 70 weight % water based on the total weight of the liquid phase.8. The process according to claim 2 , wherein the liquid phase contains at least 70 weight % water based on the total weight of the liquid phase.9. The process according to claim 2 , wherein the oxidation is carried out at a temperature of 20° C. to 100° C.10. The process according to claim 3 , wherein the oxidation is carried out at a temperature of 20° C. to 100° C.11. The process according to claim 1 , wherein the oxidation is carried out at a temperature of 20° C. to 70° C.12. The process according to claim 2 , wherein the oxidation is carried out at a temperature of 20° C. to 70° C.13. The process according to claim 3 , wherein the oxidation is carried out at a temperature of 20° C. to 70° C.14. The process according to claim 8 , wherein the oxidation is carried out at a temperature of 20° C. to 70° C.15. The process according to claim 2 , wherein the oxidation is ...

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Номер записи: 94
18-09-2014 дата публикации

Reactive Scrubbing for Upgrading Product Value, Simplifying Process Operation and Product Handling

Номер: US20140275643A1
Автор: Evan Michael VISSER, Ian Lawrence GAFFNEY, Krishna K. Rao, Walter Breidenstein
Принадлежит: GAS TECHNOLOGIES LLC

A method for removing formaldehyde from a blend of partially oxygenated hydrocarbons is provided. The method including a step of reacting a hydrocarbon-containing gas with an oxygen-containing gas in a reaction vessel to form first product blend. The first product blend includes a blend of partially oxygenated compounds that include formaldehyde. The blend of partially oxygenated compounds is provided to a reactive scrubbing station where it is contacted with a reactive scrubbing liquid to form a reactive liquid-formaldehyde compound. The reactive liquid-formaldehyde compound is then removed from the first blend of partially reactive compounds.

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Номер записи: 95
07-07-2016 дата публикации

Method for Producing N-Butane Derivatives

Номер: US20160194263A1
Автор: Heinz Strutz, Matthias Eisenacher
Принадлежит: OXEA GMBH

The present invention relates to a method of synthesizing n-butane derivatives, especially 1-butanol, 1-butanal or 1-butyric acid as well as crotonaldehyde and the reaction products thereof, wherein at first methanol is converted into a C 2 building block, either ethanol or acetaldehyde, and said C 2 building block is then dimerized into a C 4 building block.

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Номер записи: 96
23-07-2015 дата публикации

Method for producing alkoxy-hydroxybenzaldehyde that is substantially free of alkyl-alkoxy-hydroxybenzaldehyde

Номер: US20150203428A1
Автор: Garel Laurent, GAYET Hubert
Принадлежит:

The invention relates to a method for producing at least one alkoxy-hydroxybenzaldehyde (AHBA) from at least one hydroxyphenol (HP), said method being characterised in that it comprises the formation of at least one alkoxyphenol (AP) and alkyl-alkoxyphenol (AAP) and the separation (S) of AP from AAP, said separation (S) being carried out prior to obtaining AHBA. 1. A process for producing at least one alkoxyhydroxybenzaldehyde (“AHBA”) , said process comprising forming at least one alkoxyphenol (“AP”) and at least one alkylalkoxyphenol (“AAP”) from at least one hydroxyphenol (“HP”) and separating (S) the AP from the AAP , said separating (S) being carried out prior to obtaining AHBA.2. The process as claimed in claim 1 , wherein the alkoxyhydroxybenzaldehyde (AHBA) is selected from vanillin (VA) claim 1 , ethylvanillin (EVA) claim 1 , and mixtures thereof.3. The process as claimed in claim 2 , wherein the VA claim 2 , EVA or mixtures thereof is substantially free of 5-methylvanillin (“MEVA”) and of 3-ethoxy-5-ethyl-4-hydroxybenzaldehyde (“EEVA”) claim 2 , wherein the AP is selected from guaiacol (GA) claim 2 , guaethol (GE) and mixtures thereof claim 2 , and wherein the AAP is selected from 6 methylguaiacol (“MEGA”) claim 2 , 6-ethylguaethol (“2-ethoxy-6-ethylphenol” or “EGE”) claim 2 , and mixtures thereof.4. The process as claimed in claim 1 , wherein the AHBA is produced by addition of an aldehyde function to the AP by condensation with glyoxylic acid claim 1 , followed by oxidation of the resulting compound claim 1 , and wherein the separating (S) is carried out before the oxidation to give the AHBA compound.5. The process as claimed in claim 4 , wherein the separating (S) is carried out before the reaction of AP with glyoxylic acid.6. The process as claimed in claim 1 , wherein the separating (S) is carried out by one or more distillation steps.7. The process as claimed in claim 1 , wherein the process further comprises guaiacol (GA), guaethol (GE), denoted “G ...

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Номер записи: 97
14-07-2016 дата публикации

Fuels and Chemicals from Lower Alkanes

Номер: US20160200645A1
Автор: Henri John T, Zubrin Robert, Zygmunt Jan
Принадлежит: PIONEER ENERGY INC

Methods to synthesize fuels and chemicals from natural gas liquids are described. Higher alcohols are synthesized starting from natural gas liquid compounds by converting an alkane from a NGL to an olefin, dimerizing said olefin, and, hydrating said olefin product to form a higher alcohol. Higher alcohols are synthesized starting from natural gas liquid compounds by converting an alkane from a NGL to an olefin, oxidizing the olefin to form a ketone or aldehyde and, hydrogenating the aldehyde or ketone product to form a higher alcohol. Thus, NGL component butane may be dehydrogenated to form butane, butylene is oxidized in the presence of a catalyst to form methylethyl ketone and methylethyl ketone hydrogenated to form butanol. 1. A method to synthesize a higher alcohol starting from an alkane derived from natural gas liquid compounds comprising the steps of:a) Converting the alkane to an olefin,b) Oxidizing the olefin to form an aldehyde or ketone, and;c) Hydrogenating the aldehyde or ketone to form said alcohol.2. The method of where the oxidation step is a Wacker oxidation.3. The method of where the hydrogenation catalyst comprises a transition metal selected from ruthenium claim 1 , copper claim 1 , zinc claim 1 , chromium claim 1 , platinum or a mixture of two or more of them.4. The method of where the alkane is n-butane claim 1 , the olefin product is a mixture of 1-butene and 2-butene claim 1 , the ketone product is 2-butanone and the alcohol product is 2-butanol.5. The method of where the alkane is propane and the alcohol is isopropanol.6. The method of where the alkane is ethane and the alcohol is ethanol.7. A method to synthesize a higher alcohol starting from an alkane derived from natural gas liquid compounds comprising the steps of:d) Converting the alkane to an olefin,e) Dimerizing said olefin to form a dimer olefin, and,f) Hydrating said olefin dimer product to form a higher alcohol.8. The method of where the natural gas liquid mixture comprising ...

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Номер записи: 98
30-07-2015 дата публикации

PROCESS FOR THE OXIDATION OF CYCLOHEXANE

Номер: US20150210619A1
Автор: VALDEZ David Lee
Принадлежит: INVISTA NORTH AMERICA S.A R.L.

A reaction zone is provided zone comprising a series of oxygen clean up zones and a series of oxidation zones. A first stream is introduced to oxidation clean up zones comprising liquid cyclohexane. Next, the first stream is passed downwardly from the oxygen clean up zones to the oxidation zones, while cross-currently passing the oxygen containing gas upwardly from the oxidation zones to the oxygen clean up zones. During the reaction, the oxidation zones are maintained at a temperature range of about 145° C. to about 170° C. The product mixture is withdrawn from the oxidation zones that comprises cyclohexylhydroperoxide (CHHP), cyclohexanone and cyclohexanol. An oxidation off-gas comprising less than 3.0% by volume of unreacted oxygen is withdrawn from the oxygen clean up zones. 1. A process for the oxidation of cyclohexane comprising the following steps:a) providing a reaction zone comprising a plurality of oxygen clean up zones and a plurality of oxidation zones, wherein the oxygen clean up zones and the oxidation zones are in fluid communication;b) introducing a first stream comprising liquid cyclohexane into the oxygen cleanup zones;c) introducing an oxygen containing gas into the oxidation zones;d) passing the first stream downwardly from the oxygen clean up zones to the oxidation zones, while cross-currently passing the oxygen containing gas upwardly from the oxidation zones to the oxygen clean up zones, wherein the reaction between the first stream and the oxygen containing gas produces a product mixture, and wherein the oxygen containing gas is distributed to the oxidation zones through a plurality of conduit banks, wherein each conduit bank feeds one or more oxidation zones and wherein a different flow rate of the oxygen containing gas can be maintained in each conduit bank;e) maintaining the oxidation zones at a temperature range of about 145° C. to about 170° C.;f) withdrawing a product mixture from the oxidation zones that comprises ...

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Номер записи: 99
21-07-2016 дата публикации

METHOD OF PROCESSING ORGANIC SUBSTANCE IN PRESENCE OF WATER, CONTACT REACTION DEVICE AND SYSTEM INCLUDING SAME AND METHOD OF RECOVERING WASTE HEAT FROM LOW-TEMPERATURE HEAT SOURCE

Номер: US20160207864A1
Автор: Ajiri Tadafumi
Принадлежит: TOHOKU UNIVERSITY

An object is to provide a novel method for processing an organic substance with a catalyst under conditions in the presence of water. According to the present invention, there is provided a method of processing an organic substance under a hydrothermal condition by utilizing an oxidation-reduction cycle of a metal oxide catalyst, the method including: (i) oxidizing an organic substance with oxygen discharged from a metal oxide catalyst having an oxidized metal value so as to form a metal oxide catalyst having a reduced metal value and an oxidized organic substance; and (ii) oxidizing, simultaneously with the above (i), the metal oxide catalyst having the reduced metal value with oxygen discharged from water so as to reproduce the metal oxide catalyst having the oxidized metal value, where the metal oxide catalyst is a solid electrolyte. 1. A method of processing an organic substance under a hydrothermal condition by utilizing an oxidation-reduction cycle of a metal oxide catalyst , is the method comprising:(i) oxidizing an organic substance with oxygen discharged from a metal oxide catalyst having an oxidized metal value so as to form a metal oxide catalyst having a reduced metal value and an oxidized organic substance; and(ii) oxidizing, simultaneously with the above (i), the metal oxide catalyst having the reduced metal value with oxygen discharged from water so as to reproduce the metal oxide catalyst having the oxidized metal value,wherein the metal oxide catalyst is a solid electrolyte.2. The method according to claim 1 ,wherein in the above (i) and (ii) as a whole, ΔH (under the hydrothermal condition)>0, anda reaction product obtained from the organic substance and water contains an oxidized organic substance and a hydrogen gas.3. The method according to claim 2 ,wherein the reaction product contains, in addition to the oxidized organic substance and the hydrogen gas, a substance obtained by further hydrogenating the oxidized organic substance.4. The method ...

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Номер записи: 100