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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 10777. Отображено 100.
24-05-2012 дата публикации

Process for producing propylene oxide

Номер: US20120130096A1
Автор: Anna Forlin, Bruce D. Hook, David H. West, Hannah L. Crampton, Philip J. Carlberg, William W. Fan
Принадлежит: Individual

A multiple liquid phase composition and process for preparing propylene oxide including a reaction mixture of: (a) propylene, (b) at least one peroxide compound, (c) at least one catalyst, such as a titanium silicalite-1 (TS-I) catalyst, and (d) and a predetermined amount of a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol, such as methanol, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than propylene oxide; and wherein the resulting propylene oxide product partitions into a high affinity solvent during the reaction. The process of the present invention advantageously produces a waste stream with little or no significant amount of sodium chloride (NaCl).

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Номер записи: 1
31-05-2012 дата публикации

Process

Номер: US20120136165A1
Автор: Basudeb Saha, David C. Sherrington, Krzysztof Ambroziak, Rene Mbeleck
Принадлежит: SOUTH BANK UNIVERSITY ENTERPRISES LTD

The present invention provides a continuous process for the epoxidation of an olefinic compound with an oxidant, which process comprises reaction of an olefinic compound with an oxidant in the presence of a catalyst in an apparatus that comprises a reactive distillation column, which column comprises (i) a reactive section, which comprises the catalyst (ii) a rectifying section situated above the reactive section and adapted to allow separation of reagents and/or by-products from products (ix) a stripping section situated below the reactive section and adapted to allow separation of product from reagents and/or by-products (x) a vessel situated below the stripping section and adapted to provide a source of heat for the column and in which initial vaporisation of one or more of the reagents can occur, wherein the temperature in the reactive section (i) is a temperature at which the reaction between the olefinic compound and the oxidant takes place and the temperature in the stripping section (iii) is higher than the temperature in the rectifying section (ii).

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Номер записи: 2
31-05-2012 дата публикации

process for the production of an olefin oxide

Номер: US20120136166A1
Автор: Donald James Remus, John Robert Lockemeyer, Randall Clayton Yeates, Thomas Szymanski, William Herman Gerdes
Принадлежит: Shell Oil Co

The invention provides a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a catalyst comprising a carrier and silver deposited on the carrier, which carrier comprises at least 85 weight percent α-alumina and has a surface area of at least 1.3 m 2 /g, a median pore diameter of more than 0.8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 μm and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 μm is contained in pores with diameters in the range of from 0.3 to 10 μm.

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Номер записи: 3
13-12-2012 дата публикации

Process for the preparation of an alkylene carbonate and an alkylene glycol

Номер: US20120315198A1
Автор: Eugene Marie Godfried Andre Van Kruchten, Marek Matusz, Martin Lysle Hess, Wayne Errol Evans
Принадлежит: Shell Oil Co

The invention provides a reaction system for the production of an alkylene carbonate comprising: an epoxidation zone containing an epoxidation catalyst located within an epoxidation reactor; a carboxylation zone containing an bromide-containing carboxylation catalyst located within an alkylene oxide absorber; and one or more purification zones containing a purification absorbent capable of reducing the quantity of bromide-containing impurities in a feed comprising a recycle gas, which purification zones are located upstream from the epoxidation zone; and a process for the production of an alkylene carbonate and an alkylene glycol.

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Номер записи: 4
03-01-2013 дата публикации

Preparation of 2,2-bis (fluoroalkyl) oxirane and preparation of photoacid generator therefrom

Номер: US20130005997A1
Автор: Koji Hasegawa, Masaki Ohashi, Masayoshi Sagehashi, Takeru Watanabe, Youichi Ohsawa
Принадлежит: Shin Etsu Chemical Co Ltd

A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. R 1 and R 2 are fluoroalkyl groups, R 3 and R 4 are hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSO 2 R 5 group, and R 5 is alkyl or aryl.

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Номер записи: 5
21-03-2013 дата публикации

PROCESS AND APPARATUS FOR THE PRODUCTION OF ETHYLENE OXIDE

Номер: US20130072700A1
Автор: SCHRAUWEN Franciscus Johannes Maria, VAN MAAREN Wouter
Принадлежит: SHELL OIL COMPANY

The invention provides a process and an apparatus for the production of ethylene oxide from ethylene. Ethylene and oxygen are supplied to reactor tubes, wherein the reactor tubes are held by upper and lower tube sheets in a reactor vessel. The reactor vessel has a separation grid, dividing the reactor vessel into an upstream zone and a downstream zone. Coolant is supplied to the upstream zone from an upper coolant circuit and is removed from the upstream zone to the upper coolant circuit. A portion of coolant is removed as vapour from the upper coolant circuit. Coolant is supplied to the downstream zone from a lower coolant circuit and is removed from the downstream zone to the lower coolant circuit. Additional coolant is added to the lower coolant circuit. There is net flow of coolant through the separation grid from the downstream zone to the upstream zone. 1. A process for the production of ethylene oxide from ethylene comprising:a) supplying ethylene and oxygen to a reactor vessel comprising reactor tubes and a separation grid, wherein the reactor tubes are held by upper and lower tube sheets, and wherein the separation grid divides the reactor vessel into an upstream zone and a downstream zone;b) supplying coolant to the upstream zone from an upper coolant circuit, removing coolant from the upstream zone to the upper coolant circuit, and removing a portion of coolant as vapour from the upper coolant circuit; andc) supplying coolant to the downstream zone from a lower coolant circuit, removing coolant from the downstream zone to the lower coolant circuit and adding additional coolant to the lower coolant circuit;wherein there is net flow of coolant through the separation grid from the downstream zone to the upstream zone.2. A process according to wherein the separation grid has an open area that represents from 0.5 to 8% of the cross section of the reactor vessel.3. A process according to wherein the upstream zone represents from 50 to 95% of the reactor vessel ...

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Номер записи: 6
28-03-2013 дата публикации

METHOD FOR PRODUCING OLEFIN OXIDE

Номер: US20130079534A1
Автор: Kanazawa Hideo
Принадлежит: Sumitomo Chemical Company, Limited

According to a conventional method for producing an olefin oxide, hydrogen peroxide and an olefin oxide as a product are obtained in the state of a mixture, and in order to decrease the content of hydrogen peroxide in the mixture, it is necessary to distill the mixture to separate hydrogen peroxide from the olefin oxide. The present invention provides a method for producing an olefin oxide including a reaction step of reacting hydrogen peroxide with an olefin in the presence of a solvent and a titanium silicate catalyst; and a step of mixing a reducing agent containing at least one selected from the group consisting of a sulfide and hydrazine with the reaction solution obtained in the reaction step. 1. A method for producing an olefin oxide , comprising:a reaction step of reacting hydrogen peroxide with an olefin in the presence of a solvent and a titanium silicate catalyst; anda step of mixing a reducing agent containing at least one selected from the group consisting of a sulfide and hydrazine with the reaction solution obtained in the reaction step.2. The method according to claim 1 , wherein the reducing agent is sodium sulfide.3. The method according to claim 1 , wherein the reducing agent is a hydrazine hydrate or an aqueous solution of hydrazine.4. The method according to claim 1 , wherein the olefin is propylene claim 1 , and the olefin oxide is propylene oxide.5. The method according to claim 1 , wherein the solvent is a mixed solvent of acetonitrile and water.6. The method according to claim 1 , wherein the titanium silicate catalyst is a Ti-MWW precursor having a molar ratio of silicon to nitrogen (an Si/N ratio) of 5 to 20.7. A method for producing an olefin oxide claim 1 , comprising:a step of continuously adding hydrogen peroxide and an olefin to a reactor in which a solvent and a titanium silicate catalyst are contained, performing reaction in the reactor, and continuously supplying the obtained reaction solution to a decomposition tank; anda step of ...

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Номер записи: 7
11-04-2013 дата публикации

METHOD FOR PREPARING CHLOROHYDRINS AND METHOD FOR PREPARING EPICHLOROHYDRIN USING CHLOROHYDRINS PREPARED THEREBY

Номер: US20130090485A1
Автор: Kwon Myoung Suk, Park Seong Han, Song Boo Weon, Song Won Seob, Woo Sung Yul
Принадлежит:

A method of preparing chlorohydrins and a method of preparing epichlorohydrin by using chlorohydrins prepared using the method are provided. The method of preparing chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst includes at least one combination of a series of unit operations including a first reaction step, a water removal step, and a second reaction step, in that respective order, and after mixing at least a portion of a reaction mixture discharged from at least one reaction steps from among the plurality of reaction steps with an additional chlorination agent, recirculating the resulting mixture to the reaction step from which the reaction mixture was discharged. The method of preparing epichlorohydrin includes a step of reacting chlorohydrins prepared using the method of preparing chlorohydrins, with an alkaline agent. 1. A method of preparing chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst , the method comprising at least one combination of a series of unit operations comprising a plurality of reaction steps and a water removal step in the following stated order:a first reaction step of reacting the polyhydroxy aliphatic hydrocarbon with the chlorination agent;a water removal step of removing water as a by-product from a reaction mixture discharged from the first reaction step; anda second reaction step of reacting at least one constituent of the dehydrated reaction mixture with at least one of the chlorination agent and an additional chlorination agent,wherein at least a portion of a reaction mixture discharged from at least one reaction steps from among the plurality of reaction steps is mixed with an additional chlorination agent, and the resulting mixture is then recirculated to the reaction step from which the reaction mixture was discharged.2. A method of preparing chlorohydrins , the method comprising:introducing ...

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Номер записи: 8
11-04-2013 дата публикации

Epoxidation of glycerol and derivatives therefrom

Номер: US20130090497A1
Автор: Andre Pienaar, Laurence Justin Pienaar Wilson, Michael Stockenhuber
Принадлежит: AEL Mining Services Ltd

A method producing a surfactant from glycerol by converting glycerol, in a first step, to glycidol, polymerizing glycidol to an aliphatic alcohol and finally substituting a hydroxyl group with a substitute anion.

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Номер записи: 9
25-04-2013 дата публикации

METHOD FOR PREPARING CHLOROHYDRINS AND METHOD FOR PREPARING EPICHLOROHYDRIN USING CHLOROHYDRINS PREPARED THEREBY

Номер: US20130102798A1
Автор: Kwon Myoung Suk, Park Seong Han, Song Boo Weon, Song Won Seob, Woo Sung Yul
Принадлежит: Samsung Fine Chemicals Co. Ltd

A method of preparing chlorohydrins and a method of preparing epichlorohydrin using chlorohydrins prepared by using the same method are provided. The method is to prepare chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, and the method includes at least one combination of a series of unit operations including the following steps in the following stated order: a first reaction step; a water removal step; and a second reaction step, wherein the water removing step is performed by distillation operation based on a boiling point difference between constituents of a reaction mixture. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared by using the method of preparing chlorohydrins with an alkaline agent. 1. A method of preparing chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst , the method comprising at least one combination of a series of unit operations comprising the following steps in the following stated order:a first reaction step for reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent;a water removal step for removing water as a by-product from a reaction mixture discharged from the first reaction step; anda second reaction step for reacting at least one constituent of the reaction mixture from which water is removed, with at least one of the chlorination agent and an additional chlorination agent,wherein the reaction mixture introduced into the water removal step comprises polyhydroxy aliphatic hydrocarbon, chlorohydrins, and an intermediate product as a reaction product of the catalyst and the polyhydroxy aliphatic hydrocarbon at a ratio of 0 to 90 parts by weight of the polyhydroxy aliphatic hydrocarbon: 5 to 95 parts by weight of the chlorohydrins: 5 to 12 parts by weight of the intermediate product, andthe water removal step is performed by distillation based on a boiling point ...

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Номер записи: 10
25-04-2013 дата публикации

METHOD FOR PREPARING CHLOROHYDRINS COMPOSITION AND METHOD FOR PREPARING EPICHLOROHYDRIN USING CHLOROHYDRINS COMPOSITION PREPARED THEREBY

Номер: US20130102801A1
Автор: Kwon Myoung Suk, Park Seong Han, Song Boo Weon, Song Won Seob, Woo Sung Yul
Принадлежит:

Provided are a method of preparing a chlorohydrin composition and a method of preparing epichlorohydrin by using a chlorohydrin composition prepared by using the method. The method of preparing chlorohydrins in which polyhydroxy aliphatic hydrocarbon is reacted with a chlorination agent in the presence of a catalyst includes performing at least one combination of a series of unit operations comprising a first reaction step, a water removal step, and a second reaction step in this stated order, wherein the method further includes mixing a chlorohydrin concentrate obtained by purifying the reaction mixture discharged from the final reaction step from among the reaction steps and a water-rich layer discharged from the water-removal step and diluting the mixture with water. The method of preparing epichlorohydrin includes contacting the chlorohydrin composition prepared by using the method of preparing a chlorohydrin composition with an alkaline agent. 1. A method of preparing a chlorohydrin composition in which a polyhydroxy aliphatic hydrocarbon is reacted with a chlorination agent in the presence of a catalyst , the method comprises at least one combination of a series of unit operations comprisinga first reaction step for reacting the polyhydroxy aliphatic hydrocarbon with the chlorination agent,a water removal step for separating a reaction mixture comprising water as a by-product discharged from the first reaction step into a water-rich layer and a water-deficient layer, anda second reaction step for reacting at least one constituent of the reaction mixture from which water is removed with, at least one of the chlorination agent and an additional chlorination agent,wherein these steps are performed in this stated order, and the method further comprisespurifying the reaction mixture discharged from the final reaction step from among the plurality of reaction steps to obtain a chlorohydrin concentrate,mixing the water-rich layer and the chlorohydrin concentrate to ...

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Номер записи: 11
02-05-2013 дата публикации

PROCESS AND ASSEMBLY FOR PRODUCING ALKYLENE OXIDES AND GLYCOL ETHERS

Номер: US20130109872A1
Автор: Arrowood Tina L., Flick Derrick W., Ford John F.
Принадлежит: Dow Global Technologies, LLC

There is provided a process for manipulating the amount of alkyl alcohol in a product stream, e.g., such as an alkylene oxide product stream. More particularly, and in contrast to conventional processes wherein substantially all of the alkyl alcohol must be separated and desirably recycled, in the present process, a greater amount of alkyl alcohol may be allowed to remain in a partially refined alkylene oxide product stream. The residual alkyl alcohol is subsequently substantially entirely reacted to form a downstream product, e.g., a glycol ether, which is more easily separated from the alkylene oxide product stream. Indeed, the amount of alkyl alcohol in the partially refined alkylene oxide product stream can be selected based upon the output of glycol ethers, if desired. 1. A process for manipulating the amount of an alkyl alcohol in a mixture comprising from about 5 to about 15 weight percent alkylene oxide , about 50 to about 85 weight percent alcohol and about 10 to about 25 weight percent water , comprising:Introducing the mixture into a distillation column to produce a refined stream comprising from about 50 to about 99 weight percent alkylene oxide, about 0.5 to about 50 weight percent alkyl alcohol and about 0 to about 5 weight percent water; andReacting the refined stream with a catalyst comprising a metal-ligand complex, an acid, a base, a metal alkoxide, or a combination of any number of these to reduce the alkyl alcohol content in a resulting reacted stream to less than 1 wt %.2. The process of claim 1 , further comprising introducing the reacted stream into a second distillation column to provide a substantially pure stream of alkylene oxide and a stream of glycol ethers.3. The process of claim 1 , wherein the alkylene oxide comprises ethylene oxide claim 1 , propylene oxide claim 1 , butylene oxide claim 1 , pentylene oxide claim 1 , hexylene oxide claim 1 , and combinations thereof.4. The process of claim 1 , wherein the alcohol comprises methanol ...

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Номер записи: 12
09-05-2013 дата публикации

Ordered mesoporous titanosilicate and the process for the preparation thereof

Номер: US20130116453A1
Автор: Anuj Kumar, Srinivas Darbha
Принадлежит: Council of Scientific and Industrial Research CSIR

The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products.

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Номер записи: 13
16-05-2013 дата публикации

METHOD AND DEVICE USING PLASMON- RESONATING NANOPARTICLES

Номер: US20130122396A1
Автор: Christopher Phillip N., Linic Suljo
Принадлежит: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Disclosed herein are methods and articles that include a plasmon-resonating nanostructure that employ a photo-thermal mechanism to catalyze the reduction of an oxidant. As such, the plasmon-resonating nanostructure catalyzes a redox reaction at a temperature below a predetermined activation temperature. The method can be efficiently used to catalyze the reduction of an oxidant, for example in a catalytic reactor or in a fuel cell that includes a photon source. 1. A method comprising:supplying an oxidant having a π-antibonding orbital to a surface of a plasmon-resonating nanostructure;exposing the plasmon-resonating nanostructure to photons at a wavelength sufficient to photoexcite the plasmon-resonating nanostructure; andreducing the oxidant at a rate about 1.1 to about 10,000, times the rate of reduction of the oxidant under the same conditions but in the absence of the photons.2. The method of claim 1 , wherein the step ofreducing the oxidant comprises reducing the oxidant at a temperature below a predetermined thermodynamic barrier.3. The method of claim 2 , further comprising supplying and oxidizing a reductant at the temperature below the predetermined activation temperature.4. The method of claim 3 , wherein the reductant is an alkene.5. The method of claim 4 , wherein the alkene is selected from the group consisting of ethylene claim 4 , propylene claim 4 , and butylene.6. The method of claim 3 , wherein the reductant is a material selected from the group consisting of hydrogen claim 3 , methanol claim 3 , and ammonia.7. The method of claim 1 , wherein the plasmon-resonating nanostructure is present on a support.8. The method of claim 7 , wherein the support is one of silica and alumina.9. The method of claim 1 , wherein reducing the oxidant produces an oxidation product selected from a group consisting of water claim 1 , ethylene oxide claim 1 , propylene oxide claim 1 , acrylonitrile claim 1 , propenal claim 1 , acrylic acid claim 1 , carbon dioxide claim 1 ...

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Номер записи: 14
06-06-2013 дата публикации

PROCESS FOR PRODUCING OLEFIN OXIDE

Номер: US20130144074A1
Автор: Ohishi Yoshihiko, Senkan Selim, Seubsai Anusorn
Принадлежит: Sumitomo Chemical Company, Limited

A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) ruthenium metal or a ruthenium oxide, (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component. 1. A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) ruthenium metal or a ruthenium oxide , (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component.2. The process according to claim 1 , wherein the catalyst comprises (d) halogen component.3. The process according to or claim 1 , wherein the catalyst comprises (e) composite oxide.4. The process according to claim 1 , wherein (a) ruthenium metal or a ruthenium oxide claim 1 , (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component are supported on a porous support.5. The process according to claim 2 , wherein (a) ruthenium metal or a ruthenium oxide claim 2 , (b) manganese oxide claim 2 , (c) alkaline metal component or alkaline earth metal component and (d) halogen component are supported on a porous support.6. The process according to or claim 2 , wherein the porous support comprises AlO claim 2 , SiO claim 2 , TiOor ZrO.7. The process according to or claim 2 , wherein the porous support comprises SiO.8. The process according to or claim 2 , wherein the total amount of (a) ruthenium metal or a ruthenium oxide claim 2 , (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component is 0.01 to 80% by weight of the amount of the catalyst.9. The process according to or claim 2 , wherein the ruthenium/manganese metal molar ratio in the catalyst is 1/99 to 99/1.10. The process according to or claim 2 , wherein the ruthenium/(c) component molar ratio in the catalyst is 1/99 to 99/1.11. The process according to or claim 2 , wherein (a) copper oxide is CuO.12. The process according to or claim 2 , wherein ( ...

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Номер записи: 15
06-06-2013 дата публикации

PROCESS FOR REGENERATION OF TITANO SILICATE CATALYST

Номер: US20130144075A1
Автор: BORLE Yogesh Laxman, KANAGASABAPATHY Subbareddy, Kapoor Bir, VERMA Arati
Принадлежит: Aditya Birla Science and Technology Co. Ltd.

Titanosilicate catalyst is used in the oxidation reactions such as allylchloride epoxidation, phenol hydroxylation, Cyclohexanone ammoximation. During the reaction the catalyst is deactivated which further decrease in the efficiency of the oxidation reactions. The present invention provides a method for an efficient regeneration of catalyst titanosilicate catalyst at low temperature below 100° C. using a gaseous mixture containing ozone, without isolating the catalyst from the reactor system. 1. A process for activating a deactivated titano silicate catalyst , in a reactor , said process comprising the following steps;i) washing the catalyst bed containing deactivated titano silicate at a temperature range of 20 to 40° C., with a solvent selected from the group consisting of alcohol, ester, ketone, water and aqueous hydrogen peroxide;ii) heating the reactor to a temperature in the range of 50° C. to 100° C., to provide a heated catalyst bed;iii) reacting the heated catalyst in the catalyst bed, with ozone gas under exothermic conditions, said reaction being carried out by feeding a gaseous mixture containing air/oxygen and ozone having ozone content in the range of 2 to 10%, and monitoring the outlet stream of the gas coming out through said bed for ozone seepage, said reaction continued till the ozone content in the outlet stream is at least 0.2%, to provide a regenerated catalyst; andiv) cooling the regenerated catalyst bed first by passing of air/oxygen gas through the said bed followed by washing of the said bed with a solvent selected from the group consisting of alcohol and water, to a temperature in the range of 20 to 40° C.2. The process as claimed in claim 1 , wherein the steps (ii) and (iii) are repeated at least once claim 1 , after cooling of the regenerated catalyst bed by air/oxygen gas in step (iv).3. The process as claimed in claim 1 , wherein the temperature of the heated catalyst bed in the step (ii) is raised to 80° C.4. The process as claimed in ...

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Номер записи: 16
18-07-2013 дата публикации

PREPARATION OF CERIUM OXIDE-SUPPORTED NANO GOLD-SILVER CATALYSTS AND ITS APPLICATION IN CARBON MONOXIDE REMOVAL IN AIR

Номер: US20130183220A1
Автор: Chen Yu-Wen, CHENG Wen-Ching
Принадлежит: National Central University

The preparation of bimetallic gold-silver cerium dioxide-supported catalysts and the process of oxidation of carbon monoxide (CO) in air to remove CO using the gold-silver cerium dioxide-supported catalysts are disclosed. The gold loading is between 0.5 and 5 wt. %. Gold and silver particle sizes are between 1 and 3 nm, and Au/Ag weight ratio is between 1 and 10. Oxidation of CO in air over these catalysts is carried out in a fixed bed reactor to remove CO. 1. A preparation method of nano-gold-silver cerium dioxide-supported catalysts , comprising the steps of:preparing gold-silver cerium dioxide-supported catalysts by a deposition-precipitation method, wherein gold/silver weight ratio is between 1 and 10, the gold loading is between 0.5 and 5 wt. %, and the preparation method is characterized in:{'sub': 2', '4, 'mixing a silver nitrate solution and cerium dioxide (CeO) by a deposition-precipitation method; stirring the mixture solution at a temperature between 50° C. and 80° C. for 2-8 hours; dropping a HAuClsolution in the mixture solution by a deposition-precipitation method; adding ammonia water into the mixture solution to control the pH value thereof between 5 and 9; stirring the mixture solution at a temperature between 50° C. and 80° C. for 1-10 hours; washing by distilled water at a temperature between 50° C. and 80° C.; drying at a temperature between 50° C. and 150° C. for 8-24 hours; and calcining between 120° C. and 240° C. for 2-8 hours;'}wherein the diameter of the supported gold and silver particles is between 1 and 3 nanometers.2. A process of removing carbon monoxide (CO) in air , comprising the steps of:{'sub': 2', '2, 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'providing nano-gold-silver CeO-supported catalysts as recited in in the air at a temperature between 25° C. and 200° C. for oxidating the CO into CO.'} This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 101101434 filed in Taiwan, ...

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Номер записи: 17
18-07-2013 дата публикации

Derivative of epichlorohydrin of natural origin

Номер: US20130184477A1
Автор: GILBEAU Patrick
Принадлежит: SOLVAY SA

Derivative of epichlorohydrin of natural origin, selected from the group consisting of glycidyl ethers presenting an epoxide equivalent weight higher than or equal to 50 g/equivalent and lower than or equal to 15000 g/equivalent, of glycidyl esters, of glycidyl amides, of glycidyl imides, of glycidyl amines, and of any mixture thereof, and of which the C mass content is such that the ratio C/C is higher than 0.7 10. 1. A derivative of epichlorohydrin of natural origin , selected from the group consisting of glycidyl ethers , glycidyl esters , glycidyl amides , glycidyl imides , glycidyl amines , and any mixture thereof ,wherein said glycidyl ethers present an epoxide equivalent weight higher than or equal to 50 g/equivalent and lower than or equal to 15000 g/equivalent, and{'sup': 14', '14', '12', '−12, 'wherein the C mass content of said derivative of epichlorohydrin of natural origin is such that the ratio of C/C is higher than 0.7 10.'}2. The derivative of epichlorohydrin of natural origin according to selected from the group consisting of glycidyl ethers.3. The derivative of epichlorohydrin of natural origin according to wherein said glycidyl ether further exhibits characteristics selected from the group consisting ofan epoxy value in equivalent per 100 g of derivative higher than or equal to 0.008 and lower than or equal to 1.0,a dynamic viscosity at 25° C. higher than or equal to 50 mPa·s and lower than or equal to 50000,a content of hydrolysable chloride higher than or equal to 0.01% and lower than or equal to 2.2%, andany combination thereof.4. The derivative of epichlorohydrin of natural origin according to wherein said glycidyl ether exhibits an epoxy value in equivalent per 100 g of derivative higher than or equal to 0.008 and lower than or equal to 1.0.5. The derivative of epichlorohydrin of natural origin according to wherein said glycidyl ether exhibits a dynamic viscosity at 25° C. higher than or equal to 50 mPa·s and lower than or equal to 50000.6. ...

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Номер записи: 18
01-08-2013 дата публикации

Organometallic Molybdenum Acetylide Dioxo Complex And Process For The Preparation Thereof

Номер: US20130197245A1
Автор: Acham Vaibhav Ravindrakumar, Biradar Ankush, Dongare Mohan Keraba, Umbarkar Shubhangi Bhalchandra
Принадлежит:

An organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—Cs≡CPh) and provides a simple, short, efficient process for the synthesis of organometallic molybdenum dioxo complex which is used as catalyst for a number of oxidation reactions. 1. Organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—C≡CPh).2. Organometallic molybdenum acetylide dioxo complex as claimed in is useful as catalyst for the oxidation of olefins claim 1 , alcohols claim 1 , anilines claim 1 , sulfides and alkanes.3. Organometallic molybdenum acetylide dioxo complex as claimed in claim 1 , wherein said complex is recyclable.4. Organometallic molybdenum acetylide dioxo complex as claimed in claim 1 , wherein catalytically active species (η-CH) MoO(O)(—C≡CPh) of the said organometallic molybdenum dioxo complex (η-CH) MoO(—C≡CPh) formed after reacting with hydrogen peroxide is water soluble.5. A process for preparation of organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—C≡CPh) as claimed in and the said process comprising the steps of:{'sub': 2', '2', '2, 'i. treating molybdenum trioxide with aqueous halo acids HX wherein X═F, Cl, Br or I in the molar ratio of the trioxide to HX ranging between 1:6 to 1:15 at temperature in the range of 40° C. to 90° C. for period in the range of 2 to 5 hr to obtain aqua complex of dihalo dioxo molybdenum of formula MoOX.2HO wherein X═F, Cl, Br or I;'}{'sub': 2', '2', '2', '2, 'ii. adding dimethylsulphoxide or N,N-dimethylformamide to dihalo dioxo molybdenum as obtained in step (i) in the molar ratio ranging between 1:2 to 1:20 to form greenish adduct of formula MoOX.2DMSO or MoOX.2DMF wherein X═F, Cl, Br or I;'}{'sub': '2', 'iii. treating greenish adduct as obtained in step (ii) with sodium cyclopentadiene in molar ration of 1:1 to 1:20 followed by stirring at the rate of 100 to 1000 rpm to form cyclopentadiene dioxomolybdenum halo complex of formula CpMoOX wherein X═F, Cl, Br or I;'}{'sup': '5', 'sub': 5', ...

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Номер записи: 19
01-08-2013 дата публикации

PROCESS FOR PREPARING EPOXYCARBOXYLIC ESTERS

Номер: US20130197246A1
Автор: Klopsch Rainer, Seelig Bianca, Teles Joaquim Henrique
Принадлежит:

Process for preparing epoxides of the formula I 2. The process according to claim 1 , wherein R in formula I and II is a C1-C10-alkyl group.3. The process according to or claim 1 , wherein the oxidant is hydrogen peroxide.4. The process according to any of to claim 1 , wherein the reaction is carried out in the presence of a manganese complex as catalyst.5. The process according to claim 4 , wherein the reaction is additionally carried out in the presence of oxalic acid or an oxalate.6. The process according to any of to claim 4 , wherein the tube reactor comprises one or more capillaries connected in parallel through which the reaction mixture flows claim 4 , with the capillaries having an internal diameter of less than 5 millimeters.7. The process according to any of to claim 4 , wherein the capillaries have a length of at least 10 meters.8. The process according to any of to claim 4 , wherein the tube reactor comprises at least two capillaries connected in parallel.9. The process according to any of to claim 4 , wherein the residence time of the reaction medium in the capillaries is from 5 to 200 minutes.10. The process according to any of to claim 4 , wherein the reaction is carried out at a temperature of from 0 to 30° C.11. The process according to any of to claim 4 , wherein an aqueous solution comprising the water-soluble starting materials and claim 4 , separately therefrom claim 4 , an organic solution comprising the compound of the formula II and starting compounds soluble thereon are fed into the tube reactor.12. The process according to claim 11 , wherein the organic solution is a solution of the manganese-nitrogen complex or starting compounds for this in the compound of the formula II. The present invention relates to a process for preparing epoxides of the formula Iwhere R is an organic group having from 1 to 10 carbon atoms, by reacting compounds of the formula IIwith an oxidant, wherein the preparation is carried out continuously in a tube reactor. ...

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Номер записи: 20
15-08-2013 дата публикации

Process for manufacturing epichlorohydrin

Номер: US20130211110A1
Автор: BALTHASART Dominique, GILBEAU Patrick, Krafft Philippe
Принадлежит: SOLVAY SA

Process for manufacturing epichlorohydrin, comprising: (a) preparing epichlorohydrin to obtain a mixture comprising epichlorohydrin and water; (b) subjecting the mixture obtained in step (a) to a liquid-liquid phase separation to separate at least one first fraction (I) comprising most of the epichlorohydrin which was contained in the mixture before separation and at least one second fraction (II) comprising most of the water which was contained in the mixture before separation; and (c) drawing off the fraction (I) and the fraction (II); wherein the volume Vof the fraction (I) obtained in step (b) expressed in m, the volume Vof the fraction (II) obtained in step (b) expressed in m, the draw-off flow rate Dof the fraction (I) in step (c) expressed in m/h, and the draw-off flow rate IN of the fraction (II) in step (c) expressed in m/h, correspond to the following formula: (V/V)<(D/D). 1. A process for manufacturing epichlorohydrin , comprising:(a) preparing epichlorohydrin to obtain a mixture comprising epichlorohydrin and water;(b) subjecting the mixture obtained in step (a) to a liquid-liquid phase separation to separate at least one first fraction (I) comprising most of the epichlorohydrin contained in the mixture obtained in step (a) before the separation and at least one second fraction (II) comprising most of the water contained in the mixture obtained in step (a) before the separation; and(c) drawing off said first fraction (I) and said second fraction (II);{'sub': I', 'II', 'I, 'sup': 3', '3', '3', '3, 'claim-text': {'br': None, 'i': V', '/V', 'D', '/D, 'sub': II', 'I', 'II', 'I, '()<()'}, 'wherein the volume Vof the first fraction (I) obtained in step (b) expressed in m, the volume Vof the second fraction (II) obtained in step (b) expressed in m, the draw-off flow rate Dof the first fraction (I) in step (c) expressed in m/h, and the draw-off flow rate IN of the second fraction (II) in step (c) expressed in m/h, correspond to the following formula2. The ...

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Номер записи: 21
15-08-2013 дата публикации

METHOD OF SYNTHESIS OF SUBSTISTUTED HEXITOLS SUCH AS DIANHYDROGALACTITOL

Номер: US20130211111A1
Автор: Brown Dennis M.
Принадлежит: Del Mar Pharmaceuticals

The present invention provides an efficient method of synthesizing and purifying dianhydrohexitols such as dianhydrogalactitol. In general, as applied to dianhydrogalactitol, the method comprises: (1) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol; (2) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and (3) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol. 1. A method for synthesizing and purifying dianhydrogalactitol (DAG) comprising the steps of:(a) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol;(b) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and(c) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol.2. The method of wherein the concentrated solution of hydrobromic acid is about 70% hydrobromic acid and is produced by reacting phosphorus with bromine in hydrobromic acid at elevated temperature.3. The method of wherein the dibromogalactitol is dissolved in t-butanol in a proportion of about 1 g of dibromogalactitol to 10 mL of t-butanol.4. The method of wherein the dibromogalactitol is purified by recrystallization prior to its conversion to dianhydrogalactitol.5Maytenus confertiflora. The method of wherein the dulcitol is purified from the plant by the steps of:{'i': 'Maytenus confertiflora', '(i) soaking the plant in a soaking solution of from about 50% to about 80% of ethanol for about 24 hours;'}(ii) collecting the soaking solution from step (i);(iii) repeating the soaking step of step (i) with a fresh soaking solution of from about 50% to about 80% of ethanol for about 24 hours;(iv) collecting the soaking solution from step (iii) and combining it with the soaking solution collected in ...

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Номер записи: 22
15-08-2013 дата публикации

Method for producing oxidized olefin through olefin epoxidation

Номер: US20130211112A1
Автор: Bin Zhu, Chijian He, Hua Li, Jizao Gao, MIN Lin, Shuanghua Wan, Wei Wang, Xiaoju Wu, Xingtian Shu
Принадлежит: China Petroleum and Chemical Corp

A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H 2 O 2 is subjected to an epoxidation in one or more fixed bed reactors and/or one or more moving bed reactors until the conversion of H 2 O 2 reaches 50%-95%, then, optionally, the resulting reaction mixture obtained in the step (1) is subjected to a separation to obtain a first stream free of H 2 O 2 and a second stream containing the unreacted H 2 O 2 , and the olefin is introduced to the second stream to produce a second mixed stream, or optionally, the olefin is introduced to the reaction mixture obtained in the step (1) to produce a second mixed stream; (2) in a second olefin epoxidation condition, the reaction mixture obtained in the step (1) or the second mixed stream obtained in the step (1) and a second solid catalyst are introduced to one or more slurry bed reactors to conduct an epoxidation until the total conversion of H 2 O 2 reaches 98% or more, with a proviso that said process for producing the alkylene oxide by olefin epoxidation has an selectivity for the alkylene oxide of 90% or more. The process of the present invention combines the slurry bed reactor with the fixed bed reactor and/or the moving bed reactor so as to overcome the disadvantages of the low conversion of H 2 O 2 in the case that only the fixed bed reactor and/or the moving bed reactor are used, and the low selectivity for the target alkylene oxide in the case that only the slurry bed reactor is used.

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Номер записи: 23
22-08-2013 дата публикации

PROCESS FOR PRODUCING OPTICALLY ACTIVE 4-CHLORO-3-HYDROXYBUTANAL COMPOUND

Номер: US20130217901A1
Автор: Hayashi Yujiro
Принадлежит: Sumitomo Chemical Company, Limited

The invention relates to a method of producing optically active 4-chloro-3-hydroxybutanal compound (2) by reacting chloroacetaldehyde with aldehyde compound (1) in the presence of optically active pyrrolidine compound (5). 2. The method of claim 1 , wherein the reaction is carried out in a solvent containing an organic solvent.3. The method of claim 1 , wherein Ris not a hydrogen atom claim 1 , and the reaction is carried out in a mixed solvent of water and an organic solvent selected from an alcohol solvent claim 1 , an ether solvent claim 1 , a nitrile solvent and an aprotic polar solvent.4. The method of claim 1 , wherein Ris a hydroxyl group.5. The method of claim 1 , wherein Ris a hydroxyl group claim 1 , and Arand Arare each independently a phenyl group optionally having C-Cfluorinated alkyl group(s).6. The method of claim 1 , wherein Ris a hydroxyl group claim 1 , and Arand Arare both 3 claim 1 ,5-bis(trifluoromethyl)phenyl groups. The present invention relates to a production method of a 4-chloro-3-hydroxybutanal compound.An optically active compound represented by the formula (2)wherein each symbol is as defined below, is known to be useful as an intermediate for producing a medicament, a pesticide and the like, since it can be converted to, for example, an optically active hexahydrofurofuranol derivative.Concerning a production method of an optically active compound represented by the formula (2), non-patent document 1 discloses that an optically active 4-chloro-3-hydroxy-2-methylbutanal can be obtained, for example, by reacting chloroacetaldehyde with propanal in the presence of an enzyme.The aim of the present invention is to provide a new method capable of producing an optically active compound represented by the formula (2) without using an enzyme.Under the circumstances, the present inventors have studied a new production method of an optically active compound represented by the formula (2) without using an enzyme, and found that a reaction in the ...

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Номер записи: 24
05-09-2013 дата публикации

Porous inorganic body

Номер: US20130231493A1
Автор: Alfons Jochum, Christian Baltes, Igor Shishkov, Isa Alexandra Queiroz Da Fonseca, Martin Kraus, Norbert Güntherberg, Siegbert Bouche, Tobias Rosendahl, Torsten Mäurer, Wolfgang Rohde
Принадлежит: BASF SE

The present invention relates to a porous inorganic body comprising pores A having a pore size S A in the range of from 0.005 to 20 micrometer and a total pore volume V A , and comprising pores B having a pore size S B in the range of from more than 20 to 1000 micrometer and a total pore volume V B , wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is V C and wherein the ratio R A =V A /V C is in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.

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Номер записи: 25
19-09-2013 дата публикации

Method of reducing the value of an alkylene oxide production parameter in a process of making an alkylene oxide using a high efficiency catalyst

Номер: US20130245296A1
Автор: Liping Zhang, Ravindra Tupe
Принадлежит: DOW TECHNOLOGY INVESTMENTS LLC

Methods of reducing the value of an alkylene oxide production parameter (such as alkylene oxide production rate) in a process of making an alkylene oxide by reacting an alkylene and oxygen over a high efficiency catalyst are shown and described. One method comprises reducing the concentration of oxygen in the reactor feed gas to reduce the value of the alkylene oxide production parameter.

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Номер записи: 26
26-09-2013 дата публикации

CATALYST, PREPARATION METHOD THEREFOR, AND A METHOD FOR EPOXIDATING OLEFIN

Номер: US20130253208A1
Автор: Chen Qingling, Gao Jizao, He Chijian, Li Hua, Lin Min, LONG Jun, She Xichun, Wang Wei, Wu Xiaoju
Принадлежит:

The present invention provides a catalyst and the preparation process thereof and a process of epoxidising olefin using the catalyst. The catalyst contains a binder and a titanium silicate, the binder being an amorphous silica, the titanium silicate having a MFI structure, and the crystal grain of the titanium silicate having a hollow structure, with a radial length of 5-300 nm for the cavity portion of the hollow structure, wherein the adsorption capacity of benzene measured for the titanium silicate under the conditions of 25 degrees C., P/P=0.10 and 1 h of adsorption time is at least 70 mg/g, and there is a hysteresis loop between the adsorption isotherm and the desorption isotherm for nitrogen adsorption by the molecular sieve at a low temperature; wherein based on the total amount of the catalyst, the content of the binder is 3-15 wt %, and the content of the titanium silicate is 85-97 wt %; and the catalyst has a crushing strength value of not less than 60 N/cm measured according to GB3635-1983 standard method. The catalyst according to the present invention has high strength, and shows high catalytic activity in the epoxidation of olefins. 1. A catalyst containing a binder and a titanium silicate , said binder being an amorphous silica , said titanium silicate having a MFI structure , and the crystal grain of said titanium silicate having a hollow structure , with a radial length of 5-300 nm for the cavity portion of the hollow structure , wherein the adsorption capacity of benzene measured for the titanium silicate under the conditions of 25 degrees C. , P/P=0.10 and 1 h of adsorption time is at least 70 mg/g , and there is a hysteresis loop between the adsorption isotherm and the desorption isotherm for nitrogen adsorption by the molecular sieve at a low temperature; characterized in that based on the total amount of the catalyst , the content of said binder is 3-15 wt % , the content of said titanium silicate is 85-97 wt %; and said catalyst has a crushing ...

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Номер записи: 27
26-09-2013 дата публикации

PROCESS FOR THE START-UP OF AN EPOXIDATION PROCESS

Номер: US20130253209A1
Автор: Yeates Randall Clayton
Принадлежит: SHELL OIL COMPANY

The present disclosure provides processes for the start-up of an ethylene epoxidation process comprising: 1. A process for the start-up of an ethylene epoxidation process comprising:a. contacting a high selectivity epoxidation catalyst with a feed comprising ethylene, oxygen and an organic chloride for a period of time such that vinyl chloride is produced and capable of being detected in a reactor outlet stream or a recycle gas loop;b. increasing the temperature of the high selectivity epoxidation catalyst to at least about 220° C.;c. subsequently reducing the level of organic chloride in the feed over a period of from about 12 to about 36 hours so as to increase the temperature of the catalyst to a temperature of from about 250° C. to about 265° C.; andd. subsequently adjusting the level of organic chloride in the feed to a value sufficient to produce ethylene oxide at a substantially optimum selectivity at a temperature of from about 250° C. to about 265° C.2. The process of wherein at least 1×10mole-% of vinyl chloride is detected in the reactor outlet stream or the recycle gas loop.3. The process of wherein the feed in step (a) comprises organic chloride in a quantity of from about 1 to about 12 millimolar equivalent of chloride per kilogram of catalyst.4. The process of wherein the feed in step (c) comprises organic chloride in a quantity of from about 25 to about 75 weight percent of the quantity of organic chloride present in the feed in step (a).5. The process of wherein the level of organic chloride added to the feed in step (c) is zero.6. The process of wherein the organic chloride is selected from the group consisting of methyl chloride claim 1 , ethyl chloride claim 1 , ethylene dichloride claim 1 , vinyl chloride and mixtures thereof.7. The process of further comprising:e. subsequently heating the high selectivity epoxidation catalyst to a temperature of from about 250° C. to about 275° C. for a period of time between about 12 to about 150 hours.8. The ...

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Номер записи: 28
03-10-2013 дата публикации

PROCESS FOR THE EPOXIDATION OF FATTY ACIDS, THEIR ESTERS AND MIXTURES THEREOF

Номер: US20130261322A1
Автор: Darbha Srinivas, Satyarthi Jitendra Kumar
Принадлежит: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH

The present invention relates to an improved process for preparing mono and poly epoxy functionalized fatty acids, their esters and mixtures thereof using solid catalyst i.e. supported group VIb metal oxide, said support comprising silica, alumina and mixtures thereof, optionally with a promoter from group VA wherein the group VIB metal oxide content in the catalyst is 5-20 wt % of support. 1. An improved process for the epoxidation of mono and polyenic fatty acids , their esters or mixtures thereof using solid catalyst and the said process which comprises contacting mono and polyenic fatty acids , their esters or mixtures thereof with a peroxide in the presence of a solid catalyst for a period in the range of 0.5 to 6 hr at a temperature in the range of 40 to 120° C. followed by separation of the epoxide product from the reaction mixture to obtain mono and poly epoxy functionalized fatty acids , their esters or mixtures thereof wherein the amount of side products of the process is less than 1% and said solid catalyst is a supported group VIB metal oxide , said support comprising silica , alumina and mixtures thereof , optionally with a promoter from group VA wherein the group VIB metal oxide content in the catalyst is 5-20 wt % of support.2. The improved process as claimed in claim 1 , wherein fatty acids and their esters are derived from vegetable oils or animal fat.3. The improved process as claimed in claim 1 , wherein the fatty acid ester is an alkyl ester claim 1 , preferably glyceryl or methyl esters of fatty acids.4. The improved process as claimed in claim 1 , wherein peroxide used is selected from hydrogen peroxide or organic hydroperoxide preferably tert. butyl hydroperoxide.5. The improved process as claimed in claim 1 , wherein the molar ratio of peroxide to unsaturated bonds in the fatty acids claim 1 , their esters or mixtures thereof is in the range 1 to 4 preferably in the range 1.1 to 1.5.6. The improved process as claimed in claim 1 , wherein said ...

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Номер записи: 29
03-10-2013 дата публикации

INTEGRATED METHODS OF PREPARING RENEWABLE CHEMICALS

Номер: US20130261323A1
Автор: Al Obaidi Yassin, Griffith Josefa M., Gruber Patrick R., Henton David E., Manzer Leo E., Peters Matthew W., Taylor Joshua D.
Принадлежит: GEVO, INC.

Isobutene, isoprene, and butadiene are obtained from mixtures of Cand/or Colefins by dehydrogenation. The Cand/or Colefins can be obtained by dehydration of Cand Calcohols, for example, renewable Cand Calcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc. 1. An integrated process for preparing renewable hydrocarbons , comprising:(a) providing renewable isobutanol and renewable ethanol;(b) dehydrating the renewable isobutanol, thereby forming a renewable butene mixture comprising one or more renewable linear butenes and renewable isobutene;(c) dehydrating the renewable ethanol, thereby forming renewable ethylene; and{'sub': 3', '16, '(d) reacting at least a portion of the renewable butene mixture and at least a portion of the renewable ethylene to form one or more renewable C-Colefins.'}257-. (canceled)58. The integrated process of claim 1 , wherein the one or more renewable linear butenes comprise one or more of 1-butene claim 1 , cis-2-butene or trans-2-butene.59. The integrated process of claim 1 , wherein said reacting of step (d) comprises one or more reactions selected from the group consisting of disproportionation claim 1 , metathesis claim 1 , oligomerization claim 1 , isomerization claim 1 , alkylation claim 1 , dehydrodimerization claim 1 , dehydrocyclization claim 1 , and combinations thereof.60. The integrated process of claim 1 , wherein said reacting of step (d) comprises disproportionating at least a portion of the renewable ethylene formed in step (c) claim 1 , and at least a portion of the renewable 2-butene formed in step (b) and renewable 2-butene formed by isomerizing the ...

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Номер записи: 30
10-10-2013 дата публикации

PROCESS FOR PREPARING DINVINYLARENE OXIDES

Номер: US20130267720A1
Автор: FAN William W., Gu Leming, Hook Bruce D., Jean David, Ripplinger Eric B., West David H.
Принадлежит: Dow Global Technologies LLC

A process for preparing a divinylarene oxide including (a) reacting (i) at least one divinylarene; (ii) at least one peroxycarboximidic acid; (iii) at least one solvent; and (iv) at least one basic compound, under reaction conditions to form a reaction of fluent containing a divinylarene oxide product; and then (b) evaporating the reaction effluent of step (a) to form a concentrate containing the divinylarene oxide product; and wherein the concentrate separates into two liquid phases. 1. A process for manufacturing at least one divinylarene oxide comprising the steps of:(a) reacting (i) at least one divinylarene with (ii) at least one peroxycarboximidic acid epoxidizing agent in the presence of (iii) at least one solvent and (iv) at least one basic compound, to form a reaction effluent comprising at least one divinylarene oxide and at least one amide;(b) removing at least a portion of at least one lights from the reaction effluent of step (a) forming a biphasic liquid concentrate comprising (b1) an organic phase containing at least a portion of the at least one divinylarene oxide and (b2) an aqueous phase; and(c) separating the organic phase containing the at least one divinylarene oxide from the aqueous phase.2. The process of claim 1 , including step (d) recycling the lights from step (b) back to step (a).3. The process of claim 1 , wherein greater than about 50 percent of the mass of the at least one divinylarene oxide in the reaction effluent of step (a) is present in the organic phase after step (b); and wherein greater than about 50 percent of the mass of the amide in the reaction effluent of step (a) is present in the aqueous phase after step (b).4. The process of claim 1 , including (d) purifying the organic phase containing the at least one divinylarene oxide of step (c) to prepare a purified divinylarene oxide product with greater than about 60 percent purity.5. The process of claim 1 , wherein the removing step (b) is carried out by evaporation; and ...

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Номер записи: 31
17-10-2013 дата публикации

Electrocatalyst for oxygen reduction including silver/silver halide composite, fuel cell including the same, and preparing method of the same

Номер: US20130273458A1
Автор: Chongmok LEE, Jun Ho Shim, Su-Jin Kim, Youngmi Lee
Принадлежит: Industry Collaboration Foundation of Ewha University

The present disclosure relates to an electrocatalyst for oxygen reduction including a silver/silver halide composite, a fuel cell including the electrocatalyst for oxygen reduction, and a method for preparing the electrocatalyst for oxygen reduction.

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Номер записи: 32
17-10-2013 дата публикации

PROCESS FOR MAKING RENEWABLE SOURCE-BASED CITRATE ESTERS AND ACYLATED CITRATE ESTERS

Номер: US20130274389A1
Автор: Howard Stephen
Принадлежит: ARCHER DANIELS MIDLAND COMPANY

Improved processes are described for making trialkyl esters and acylated trialkyl esters of carboxylic acids, as well as epoxidized trialkyl esters and acylated trialkyl carboxylate esters, such as are used in developing plasticized PVC compositions. In particular, processes are described for conducting the esterification and acylation steps involved in making the acylated trialkyl esters in a single vessel without an intermediate purification step, by means of a Lewis acid metal triflate catalyst. 1. A process for making a trialkyl carboxylate ester , comprising reacting a carboxylic acid , carboxylic acid anhydride or carboxylic acid chloride with an alcohol in the presence of a Lewis acid metal triflate catalyst , and recovering at least a portion of the catalyst from the reactor.2. A process according to claim 1 , wherein a plurality of such esters are formed by reacting a plurality of carboxylic acids and/or the anhydrides and chlorides of such acids with an alcohol or with a mixture of alcohols.3. A process according to claim 1 , wherein trialkyl citrate esters are formed from citric acid.4. A process according to claim 3 , wherein citric acid is reacted with one or more of the four carbon butyl to eight carbon octyl alcohols.5. A process according to claim 1 , wherein the Lewis acid metal triflate catalyst is a bismuth triflate catalyst claim 1 , a neodymium triflate catalyst or a lanthanide triflate catalyst.6. A process according to claim 1 , wherein the process is conducted at essentially atmospheric pressure.7. A process according to claim 6 , further comprising continually removing azeotropic water from the reaction vessel under reflux conditions.8. A process according to claim 7 , wherein the reaction is carried out to substantial completion.9. (canceled)10. A process according to claim 1 , wherein catalyst is precipitated out from the reaction mixture and recovered by filtration.11. A process according to claim 1 , wherein catalyst is extracted into a ...

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Номер записи: 33
17-10-2013 дата публикации

PROCESS FOR PREPARING AN EPOXIDE

Номер: US20130274488A1
Автор: GILBEAU Patrick
Принадлежит:

A mixture of compounds containing 1,3-dichloropropan-2-ol, 2,3-dichloropropan-1-ol, and a halogenated ketone, where the halogenated ketone content of the mixture is at least 0.0001% by weight and less than or equal to 0.1% by weight relative to the 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. 1. A process comprising forming an epoxy resin by subjecting to a dehydrochlorination operation in the presence of at least one alcohol other than glycerol a mixture of compounds comprising 1 ,3-dichloropropan-2-ol , 2 ,3-dichloropropan-1-ol , and a halogenated ketone , wherein the halogenated ketone content of said mixture is at least 0.0001% by weight and less than or equal to 0.1% by weight relative to the 1 ,3-dichloropropan-2-ol and 2 ,3-dichloropropan-1-ol.2. The process according claim 1 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.04% by weight.3. The process according claim 2 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.005% by weight.4. The process according to claim 1 , wherein the halogenated ketone in the mixture of compounds contains 3 to 18 carbon atoms and in which one or more hydrogen atoms have been replaced by a halogen atom.5. The process according to claim 4 , wherein the halogenated ketone is a chlorinated ketone.6. The process according to claim 5 , wherein the chlorinated ketone is chloroacetone.7. The process according to claim 1 , wherein the mixture of compounds contains more than 50% by weight of 1 claim 1 ,3-dichloropropan-2-ol and 2 claim 1 ,3-dichloropropan-1-ol.8. The process according to claim 1 , wherein the mixture of compounds contains more than 50% by weight of 1 claim 1 ,3-dichloropropan-2-ol and 2 claim 1 ,3-dichloropropan-1-ol and wherein the halogenated ketone is chloroacetone.9. The process according to claim 1 , wherein the mixture of compounds further comprises water.10. The process according to claim 1 , wherein the ...

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Номер записи: 34
24-10-2013 дата публикации

BRANCHED SILOXANES AND METHODS FOR SYNTHESIS

Номер: US20130281713A1
Автор: Jacobsson MIchael B., OGAWA Tsuyoshi, Willson Grant
Принадлежит: BOARD OF REGENTS THE UNIVERSITY OF TEXAS SYSTEM

The present invention describes branched and functionalized siloxanes and methods for making such compounds. The compounds have a variety of uses. One preferred application is as novel planarizing material for lithography, in which case functionalized branched siloxane, such as an epoxy-modified branched siloxane is particularly useful. 2. The method of claim 1 , wherein said siloxane comprising a silicon-hydrogen bond represented by the formula (a) is 3H claim 1 ,5H-octamethyltetrasiloxane.3. The method of claim 1 , wherein m is either 2 or 3.4. The method of claim 2 , wherein said 3H claim 2 ,5H-octamethyltetrasiloxane claim 2 , prior to reacting with said asymmetric linear siloxane claim 2 , is exposed to a catalyst in the presence of water.5. The method of claim 4 , wherein said catalyst is removed prior to reacting said 3H claim 4 ,5H-octamethyltetrasiloxane with said asymmetric linear siloxane.6. The method of claim 4 , wherein said catalyst is a palladium catalyst.7. The method of claim 1 , wherein the halogen of said asymmetric linear siloxane is chlorine.8. The method of claim 1 , further comprising the step of purifying the branched siloxane by distillation claim 1 , so as to remove said byproducts of the synthesis reaction and provide a purified branched siloxane.9. The method of claim 8 , further comprising the step of functionalizing said purified branched siloxane.10. The method of claim 9 , wherein said functionalizing comprises attaching photo-crosslinkable moieties claim 9 , said moieties selected from the group consisting of acrylates claim 9 , methacrylates claim 9 , vinyls and epoxides.11. The method of claim 9 , wherein said functionalizing comprises hydrosylilation.12. The branched siloxane Si-12 having the structure shown in .13. The functionalized branched siloxane Si-12 having the structure shown in claim 9 , wherein X is a chemical moiety.14. The functionalized branched siloxane Epoxy-Si-12 having the structure shown in . The present ...

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Номер записи: 35
24-10-2013 дата публикации

Process for producing olefin oxide

Номер: US20130281722A1
Автор: Anusorn Seubsai, Selim Senkan, Yoshihiko Ohishi
Принадлежит: Sumitomo Chemical Co Ltd

A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising a copper oxide and a tellurium oxide.

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Номер записи: 36
31-10-2013 дата публикации

Epoxidation reactions and operating conditions thereof

Номер: US20130288379A1
Автор: Albert C. Liu, Hwaili Soo, Michael Habenschuss, Paul V. Hinman
Принадлежит: DOW TECHNOLOGY INVESTMENTS LLC

A method of producing an alkylene oxide includes passing a reaction mixture comprising alkylene, oxygen and a gaseous chlorine-containing promoter species over a supported catalyst containing silver and a promoting amount of rhenium to undergo an epoxidation reaction at a first operating condition. The method further includes subsequently performing the epoxidation reaction at a preferred operating condition. The preferred operating condition is characterized by an efficiency of the epoxidation reaction toward the alkylene oxide where the efficiency is lower than that of a maximum efficiency achievable at an operating temperature corresponding to the preferred operating condition.

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Номер записи: 37
31-10-2013 дата публикации

PROCESS FOR TREATING A CARRIER, A PROCESS FOR PREPARING A CATALYST, THE CATALYST, AND USE OF THE CATALYST

Номер: US20130289288A1
Автор: LOCKEMEYER John Robert, Yeates Randall Clayton
Принадлежит:

A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof. 1. A process for treating a carrier , or a precursor thereof , to at least partly remove impurities from the carrier , or the precursor thereof , comprising:contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; andseparating at least part of the treatment solution from the carrier, or the precursor thereof.2. The process as claimed in claim 1 , wherein the oxyanion is selected from borate claim 1 , metaborate claim 1 , tetraborate claim 1 , tetrafluoroborate claim 1 , carbonate claim 1 , hydrogencarbonate claim 1 , chlorate claim 1 , perchlorate claim 1 , bromate claim 1 , perbromate claim 1 , phosphate claim 1 , metaphosphate claim 1 , orthophosphate claim 1 , hydrogenphosphate claim 1 , dihydrogenphosphate claim 1 , fluorophosphates claim 1 , phosphite claim 1 , hydrogenphosphite claim 1 , sulfate claim 1 , disulfate claim 1 ...

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Номер записи: 38
07-11-2013 дата публикации

DIRECT CONVERSION OF OLEFIN TO OLEFIN OXIDE BY MOLECULAR OXYGEN

Номер: US20130296586A1
Автор: Knapp Bjeren Carlos Gustavo, Ohishi Yoshihiko, Senkan Selim, Seubsai Anusorn
Принадлежит: Sumitomo Chemical Company, Limited

The present invention relates to a direct conversion of olefin to olefin oxide, which are important and versatile intermediates used in the production of a large variety of valuable consumer products such as polyurethane foams, polymers, alkylene glycol, cosmetics, food emulsifiers and as fumigants and insecticides. More specifically, the present invention provides a process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a halogen compound additive and a catalyst comprising copper, ruthenium or both thereof.

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Номер записи: 39
07-11-2013 дата публикации

Catalyst for the epoxidation of alkenes

Номер: US20130296587A1
Автор: Andreas Lehr, Dirk HENSEL, Tobias Rosendahl, Torsten Mäurer
Принадлежит: BASF SE

The present invention relates to a catalyst for preparing alkylene oxides, which is a supported silver catalyst having a novel promoter combination. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene in the presence of the stated catalyst.

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Номер записи: 40
14-11-2013 дата публикации

EXTRACTION OF OIL-SOLUBLE PIGMENT FROM MICRO-ORGANISMS

Номер: US20130302365A1
Автор: Gonzalez Ramon Nieves, Weber Andreas
Принадлежит:

A microalgae extract is disclosed consisting of: (A) 40-95 wt. % of a polar phase comprising: (i) 15-75 wt. % water; (ii) 20-80 wt. % of alcohols, acetone and/or combinations thereof; (iii) 0-10 wt. % of sodium chloride; (iv) up to 40 wt. % of other water soluble components; (B) 5-60 wt. % of an apolar phase comprising: (i) 70-99.5 wt. % of triglycerides, diglycerides, monoglycerides, phosphatides, free fatty acids and/or combinations thereof; (ii) 0.05-25 wt. % of oil-soluble pigment; (iii) up to 30 wt. % of other oil soluble components; and (iv) optionally other components in a concentration that does not exceed 9% by weight of the water contained in the extract, wherein the extract contains less than 0.5% by weight of the apolar phase of apolar organic solvent selected from C-Calkanes. Processes for extracting an oil-soluble pigment from wet biomass of micro-organisms are also disclosed. 119-. (canceled)20. A microalgae extract consisting of: (i) 15-75 wt. % water;', '(ii) 20-80 wt. % of an organic water miscible solvent selected from alcohols, acetone and combinations thereof;', '(iii) 0-10 wt. % of sodium chloride;', '(iv) up to 40 wt. % of other water soluble components;, '(a) 40-95 wt. % of a polar phase comprising (i) 70-99.5 wt. % of oil selected from triglycerides, diglycerides, monoglycerides, phosphatides, free fatty acids and combinations thereof;', '(ii) 0.05-25 wt. % of oil-soluble pigment;', '(iii) up to 30 wt. % of other oil soluble components; and, optionally, '(b) 5-60 wt. % of an apolar phase comprising(c) other components in a concentration that does not exceed 9% by weight of the water contained in the extract,{'sub': 5', '10, 'wherein the extract contains less than 0.5% by weight of the apolar phase of apolar organic solvent selected from C-Calkanes and wherein marine oil represents less than 50 wt. % of the oil contained in the apolar phase.'}21. The extract according to claim 20 , wherein marine oil represents less than 35 wt. % of the oil ...

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Номер записи: 41
14-11-2013 дата публикации

CATALYST AND METHOD OF MANUFACTURE

Номер: US20130303365A1
Автор: Hancu Dan, Lewis Larry Neil, Mhadeshwar Ashish Balkrishna, Norton Daniel George, Siclovan Oltea Puica, Winkler Benjamin Hale, Yin Ming
Принадлежит:

A catalyst system comprising a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support. The pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers. The catalytic metal comprises nanocrystals. 125-. (canceled)26. A method comprising:providing nanocrystals of at least one catalytic metal;incorporating the nanocrystals in at least one metal inorganic support; andforming a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support;wherein the pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers.27. The method of claim 26 , wherein the step of providing nanocrystals of the at least one catalytic metal comprises preparing the nanocrystals of the catalytic metal in the presence of a surfactant.28. The method of claim 26 , wherein the step of providing nanocrystals of the catalytic metal is carried out a temperature in a range of about 10 degrees Celsius to about 200 degrees Celsius.29. The method of claim 26 , wherein the step of providing nanocrystals of the catalytic metal is carried out under vacuum in a range of about 0.5 millimeter of mercury to about 10 millimeter of mercury.30. The method of claim 26 , wherein the nanocrystals have a particle size distribution of less than about 20 percent of the solid mixture.31. The method of claim 26 , wherein the catalytic metal is present in an amount less than or equal to about 6 mole percent based on the weight of the homogenous solid mixture.32. (canceled)33. (canceled)34. The method of claim 26 , wherein the catalytic metal comprises silver claim 26 , platinum claim 26 , gold claim 26 , palladium claim 26 , iron claim 26 , nickel claim 26 , cobalt claim 26 , gallium claim 26 , indium claim 26 , ruthenium claim 26 , rhodium claim 26 , osmium ...

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Номер записи: 42
14-11-2013 дата публикации

Process for the manufacture of 1,2-epoxy-3-chloropropane

Номер: US20130303793A1
Автор: GILBEAU Patrick, Gillin Frederic
Принадлежит: SOLVAY SA

Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction, wherein the catalyst exhibits an external surface to volume ratio lower than to 2.4 10m. 1. A process for the manufacture of 1 ,2-epoxy-3-chloropropane comprising a reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the optional presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction , wherein the catalyst exhibits an external surface to volume ratio lower than to 2.4 10m.23-. (canceled)4. The process according to claim 1 , wherein the catalyst exhibits an external surface to volume ratio lower than or equal to 1.0 10m.59-. (canceled)10. The process according to claim 1 , wherein the solvent is selected from the group consisting of an alcohol claim 1 , a saturated aliphatic hydrocarbon optionally containing at least one halogen atom claim 1 , an unsaturated aliphatic hydrocarbon optionally containing at least one halogen atom claim 1 , an aromatic hydrocarbon optionally containing at least one of a halogen atom claim 1 , a nitrogen atom claim 1 , an alkyl group claim 1 , and any mixtures of at least two thereof.11. The process according to claim 10 , wherein the solvent is selected from the group consisting of methanol claim 10 , n-decane claim 10 , n-tridecane claim 10 , 1 claim 10 ,2 claim 10 ,3-trichloropropane claim 10 , decahydronaphtalene claim 10 , o-dichlorobenzene claim 10 , m-dichlorobenzene claim 10 , p-dichlorobenzene claim 10 , o-xylene claim 10 , m-xylene claim 10 , p-xylene claim 10 , 1 claim 10 ,3 claim 10 ,5-trimethylbenzene claim 10 , decaline claim 10 , o-chlorotoluene claim 10 , m-chlorotoluene claim 10 , p-chlorotoluene claim 10 , ...

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Номер записи: 43
14-11-2013 дата публикации

CATALYST COMPRISING PALLADIUM AND SILVER, AND ITS APPLICATION FOR SELECTIVE HYDROGENATION

Номер: US20130303813A1
Автор: Cabiac Amandine, CHAMBARD Alexandre, Thomazeau Cecile, ZOZAYA Vincent
Принадлежит:

Disclosed are a catalyst, its preparation and use in selective hydrogenation, which catalyst has a porous support grain on which are deposited palladium and silver, and at least one alkali and/or alkaline earth metal; the porous support contains a refractory silica, alumina and/or silica-alumina oxide, where at least 80 wt. % of the palladium is distributed in a crust at the periphery of the support, and at least 80 wt. % of the silver is distributed in a crust at the periphery of the support, the local content of palladium at each point along the diameter of the grain follows the same course as the local content of silver. 1. A catalyst comprising a porous support grain on which are deposited palladium and silver , and at least one metal selected from the group consisting of the alkalis and the alkaline earths , the porous support comprising at least one refractory oxide selected from the group consisting of silica , alumina and silica-alumina , the specific surface area of the porous support being within the range 10 to 150 m/g , the palladium content of the catalyst within the range 0.05 to 0.6 wt. % , the silver content of the catalyst within the range 0.02 to 3 wt. % , at least 80 wt. % of the palladium being distributed in a crust at the periphery of the support , the thickness of the said crust being within the range 10 to 160 μm , at least 80 wt. % of the silver being distributed in a crust at the periphery of the support , the thickness of the said crust being within the range 10 to 160 μm , the local content of palladium at each point along the diameter of the grain following the same course as the local content of silver , the sum of the contents of alkali and/or alkaline earth metals being within the range 0.02 to 5 wt. %.4. A catalyst according to claim 1 , wherein the porous support is alumina.5. A catalyst according to claim 1 , wherein the porous support grain is in the form of beads or extrudates.6. A catalyst according to claim 1 , wherein the said ...

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Номер записи: 44
21-11-2013 дата публикации

Process for the manufacture of 1,2-epoxy-3-chloropropane

Номер: US20130310581A1
Автор: GILBEAU Patrick, Gillin Frederic
Принадлежит: SOLVAY SA

Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction, comprising feeding continuously a reaction zone comprising the catalyst with at least allyl chloride, hydrogen peroxide and possibly at least one solvent at a total liquid linear velocity higher than or equal to 0.01 m/s and lower than or equal to 1 m/s, wherein the pressure drop across the reaction zone is lower than or equal to 25 kPa/m. 1. A process for the manufacture of 1 ,2-epoxy-3-chloropropane comprising a reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the optional presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction , said method further comprising feeding continuously a reaction zone comprising the catalyst with at least said allyl chloride , said hydrogen peroxide and optionally at least one solvent at a total liquid linear velocity higher than or equal to 0.01 m/s and lower than or equal to 1 m/s , wherein the pressure drop across the reaction zone is lower than or equal to 25 kPa/m.28-. (canceled)9. The process according to claim 1 , wherein the pressure drop across the reaction zone is lower than or equal to 10 kPa/m.1014-. (canceled)15. The process according to claim 1 , wherein the catalyst exhibits an external surface to volume ratio lower than to 2.4 10m.1622-. (canceled)23. The process according to claim 1 , wherein the reaction is carried out in the presence of at least one solvent claim 1 , and wherein the solvent is selected from the group consisting of an alcohol claim 1 , a saturated aliphatic hydrocarbon optionally containing at least one halogen atom claim 1 , an unsaturated aliphatic hydrocarbon optionally containing at ...

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Номер записи: 45
21-11-2013 дата публикации

PROCESS FOR REMOVING IRON IONS FROM AN ORGANIC STREAM

Номер: US20130310582A1
Автор: Carlberg Philip J., Crampton Hannah L., Goltz Harlan R., Longoria Joe J.
Принадлежит: Dow Global Technologies LLC

Embodiments of the present disclosure include a process for removing iron ions from an organic stream by contacting the organic stream with an ion exchange resin prior to contacting the organic stream with a peroxide solution including a stabilizer. 1. A system for producing an oxirane , comprising:a first pipe for transporting an organic stream including allyl chloride and iron ions;an exchange vessel holding a solid support with active sites that remove iron ions from the organic stream to provide the organic stream with an iron ion concentration of less than one weight percent based on the total weight of the organic stream, wherein the exchange vessel is connected to the first pipe;a second pipe connected to an outlet of the exchange vessel for transporting the organic stream with the iron ion concentration of less than one weight percent from the exchange vessel;a third pipe for transporting a peroxide solution including a stabilizer; anda reaction vessel for reacting the organic stream having the iron ion concentration of less than one weight percent and the peroxide compound to form the oxirane, wherein the second pipe and the third pipe are connected to the reaction vessel.2. The system of claim 1 , wherein the solid support is a strong acid3. The system of claim 1 , wherein the second pipe is of a non-ferrous metal material.4. The system of claim 1 , wherein the exchange vessel is arranged in a fixed-bed configuration holding the solid support.5. The system of claim 1 , wherein the exchange vessel is of a non-ferrous metal material.6. A process for removing iron ions from an organic stream claim 1 , the process comprising:providing an organic stream having iron ions;providing an ion exchange resin;removing the iron ions from the organic stream by contacting the organic stream with the ion exchange resin to provide the organic stream with an iron ion concentration of less than one weight percent based on the total weight of the organic stream; andcontacting ...

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Номер записи: 46
21-11-2013 дата публикации

SEPARATING PHASES OF A MIXTURE

Номер: US20130310583A1
Автор: Carlberg Philip J., Crampton Hannah L., Longoria Joe J.
Принадлежит: Dow Global Technologies LLC

Embodiments of the present disclosure include a process for separating phases of a mixture including a liquid aqueous phase, a liquid organic phase, and a solid phase and extracting at least an oxirane from the liquid aqueous phase with an extraction solvent. 1. A process for separating phases of a mixture that contain an oxirane , comprising:receiving the mixture including a liquid aqueous phase, a liquid organic phase, the oxirane, and a solid phase titanium-silicalite catalyst;separating the mixture to into the liquid aqueous phase that includes at least water, a peroxide compound, an alcohol and an olefin and the liquid organic phase that includes at least the olefin and a non-reactive co-solvent, where both the liquid aqueous phase and the liquid organic phase include the oxirane and wherein the liquid organic phase has a density greater than the liquid aqueous phase, the solid phase titanium-silicalite catalyst has a density greater than the liquid organic phase, and the solid phase titanium-silicalite catalyst has an affinity for the liquid aqueous phase, and where a first part of the solid phase titanium-silicalite catalyst remains suspended in the liquid aqueous phase and a second part of the solid phase titanium-silicalite catalyst settles through the liquid organic phase to a density driven position;recovering the liquid aqueous phase including the first part of the solid phase titanium-silicalite catalyst; andextracting at least the oxirane from the liquid aqueous phase with an extraction solvent.2. The process of claim 1 , wherein the solid phase titanium-silicalite catalyst includes a polar group claim 1 , a charged group or a combination thereof.3. The process of claim 1 , wherein the first part of the solid phase titanium-silicalite catalyst is greater than 50 weight percent claim 1 , based on a total weight of the solid phase titanium-silicalite catalyst.4. The process of claim 1 , further including recovering the liquid organic phase from a point ...

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Номер записи: 47
21-11-2013 дата публикации

OLEFIN EPOXIDATION PROCESS

Номер: US20130310584A1
Автор: EVANS Wayne Errol, Kobe Jeffrey Michael, MCALLISTER Paul Michael, Yeates Randall Clayton
Принадлежит: SHELL OIL COMPANY

A process for the production of an olefin oxide, which process comprises reacting a feed comprising an olefin and oxygen in a reactor tube in the presence of a silver-containing catalyst, wherein the presence of water in the catalyst bed is controlled such that the ratio of the partial pressure of water (PPHO) divided by the vapor pressure of water (VPHO) is less than 0.006, preferably less than 0.004. 1. A process for the production of ethylene oxide, which process comprises reacting a feed comprising ethylene and oxygen in the presence of a catalyst bed comprising silver-containing catalyst loaded in a reactor tube, wherein the presence of water at any point in the catalyst bed is controlled such that the ratio of the partial pressure of water (PPHO) divided by the vapor pressure of water (VPHO) is less than 0.006. The present application is a continuation of U.S. application Ser. No. 13/246,325 filed Sep. 27, 2011, which claims the benefit of U.S. Provisional Application No. 61/387,858 filed Sep. 29, 2010, both of which are incorporated herein by reference.The present invention relates to a process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, 1,2-carbonate or an alkanolamine.In olefin epoxidation an olefin is reacted with oxygen to form an olefin epoxide, using a catalyst comprising a silver component, usually with one or more further elements deposited therewith on a support. The olefin oxide may be reacted with water, an alcohol, carbon dioxide or an amine to form a 1,2-diol, a 1,2-diol ether, 1,2-carbonate or an alkanolamine. Thus, 1,2-diols, 1,2-diol ethers, 1,2-carbonates and alkanolamines may be produced in a multi-step process comprising olefin epoxidation and converting the formed olefin oxide with water, an alcohol, carbon dioxide or an amine.The performance of the epoxidation process may be assessed on the basis of the selectivity, the catalyst's activity and stability of operation. The selectivity is the molar fraction of the ...

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Номер записи: 48
05-12-2013 дата публикации

METHOD FOR PRODUCING TITANO-(SILICO)-ALUMINO-PHOSPHATE

Номер: US20130323163A1
Автор: Althoff Roderik, Rauch Oliver, Sauerbeck Silke, Tissler Arno
Принадлежит: Clariant Produkte (Deutschland) GmbH

The invention relates to a method for producing titano-(silico)-alumino-phosphate, a catalyst shaped body which contains titano-(silico)-alumino-phosphate, a washcoat containing titano-(silico)-alumino-phosphate, the use of the washcoat to produce a catalyst by coating a support body, and to the use of titano-(silico)-alumino-phosphate or of the catalyst shaped body to produce a catalyst. 113-. (canceled)14. A method for producing a titano-alumino-phosphate or a titano-silico-alumino-phosphate by thermal conversion of a mixture comprising a titanium source , an aluminium source , a phosphorus source and optionally a silicon source , wherein the titanium source comprises TiOand/or silicon-doped TiO.15. The method according to claim 14 , wherein the mixture contains a template.16. The method according to claim 14 , wherein the silicon source comprises SiOand the titanium source comprises silicon-doped TiO.17. The method according to claim 14 , wherein the titano-alumino-phosphate or the titano-silico-alumino-phosphate is substantially sodium-free.19. The method according to claim 14 , wherein the titano-silico-alumino-phosphate is TAPSO-34.20. The method according to claim 14 , wherein the step of the thermal conversion of the mixture is carried out at a temperature within the range of from 100 to 200° C.21. The method according to claim 14 , wherein the step of thermal conversion takes place within a period in the range of from 12 to 120 hours.22. The method according to claim 14 , wherein claim 14 , using liquid ion exchange claim 14 , metal cations are bound as counterions of the titano-alumino-phosphate or of the titano-silico-alumino-phosphate.23. A catalyst shaped body containing a titano-alumino-phosphate or a titano-silico-alumino-phosphate.24. The catalyst shaped body according to claim 23 , wherein the titano-alumino-phosphate or the titano-silico-alumino-phosphate contains metal cations as counterions.25. A washcoat containing a titano-alumino-phosphate or ...

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Номер записи: 49
19-12-2013 дата публикации

CATALYST COMPOSITION

Номер: US20130333362A1
Автор: PHILLIPS PAUL RICHARD, RAJ AGNES SUGANYA, RAJARAM RAJ RAO
Принадлежит:

A catalyst composition comprises a mixed metal catalyst which comprises unalloyed palladium and palladium-gold alloy disposed on a support, wherein the palladium-gold alloy is enriched in gold and at least one promoter in which said promoter comprises at least one reducible metal oxide. 1. A catalyst composition comprising a mixed metal catalyst which comprises unalloyed palladium and palladium-gold alloy disposed on a support , wherein the palladium-gold alloy is enriched in gold and at least one promoter in which said promoter comprises at least one reducible metal oxide.2. A catalyst composition according to claim 1 , wherein the atomic ratio of Pd:Au in the mixed metal catalyst is from 100:1 to 1:100.3. A catalyst composition according to claim 1 , wherein the weight ratio of Pd:Au in the mixed metal catalyst is >1:1.4. A catalyst composition according to claim 1 , wherein the amount of palladium and gold in the mixed metal catalyst is from 0.5-10 wt %.5. A catalyst composition according to claim 1 , wherein the at least one reducible metal oxide is at least one oxide of manganese claim 1 , iron claim 1 , tin claim 1 , copper claim 1 , cobalt claim 1 , titanium and cerium.6. A catalyst composition according to claim 5 , wherein the at least one reducible metal oxide is at least one oxide of iron and cerium.7. A catalyst composition according to claim 6 , wherein the at least one reducible metal oxide is ceria.8. A catalyst composition according to claim 1 , wherein the at least one promoter is the support for the mixed metal catalyst.9. A catalyst composition according to claim 8 , wherein the promoter and support is ceria.10. A catalyst composition according to claim 8 , wherein the promoter and support is a mixed oxide or composite oxide of particulate ceria with alumina.11. A catalyst composition according to claim 1 , wherein the support is alumina claim 1 , magnesia claim 1 , silica-alumina claim 1 , zirconia claim 1 , a zeolite or a mixture claim 1 , ...

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Номер записи: 50
19-12-2013 дата публикации

METAL EUTECTIC SUPPORTED METAL CATALYST SYSTEM AND REACTIONS WITH THE METAL CATALYST SYSTEM

Номер: US20130336878A1
Автор: Johnson Allen L.
Принадлежит:

A eutectic supported catalyst system is used in catalyzed chemical reactions. A metal catalyst particle is supported in a eutectic medium. The system may have a) a eutectic composition of at least two metals forming the eutectic composition; and b) metal catalyst particles, preferably of nanometer dimensions, such as from 0.5 to 50 nm. The particles are dispersed throughout the eutectic composition when the eutectic composition is solid, and the particles are dispersed or suspended throughout the eutectic composition when the eutectic composition is in liquid form. At least one metal of the eutectic may comprises lead and a metal in the metal catalyst is a different metal then the metals in the eutectic. The eutectic may be in a liquid state and the metal catalyst particles may be in an equilibrium state within the eutectic. 2. The supported catalyst system of wherein the eutectic is in a liquid state and the metal catalyst particles are in an equilibrium state within the eutectic.3. The supported catalyst system of wherein the eutectic in a liquid state is at a temperature of between 20° C. and 750° C.4. The supported catalyst system of wherein the eutectic in a liquid state is at a temperature of between the melting point of the low melting alloy and higher temperatures and 750° C. and the equilibrium state of the catalyst particles has metal of the metal catalyst dissolving or washing off residues or precipitates on surfaces of the catalyst particles.5. The supported catalyst system of wherein gaseous alcohol bubbles and hydrogen gas bubbles are present within the eutectic.6. A method of catalytically chemically modifying organic compounds in a catalytic reaction comprising:supporting metal catalyst particles having average diameters of from 1-25 nm within a liquid eutectic comprising two metals;flowing a gaseous organic compound as bubbles through the liquid eutectic;the gas bubbles contacting metal catalyst particles exposed from the liquid eutectic against an ...

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Номер записи: 51
19-12-2013 дата публикации

HIGHLY ACTIVE THERMALLY STABLE NANOPOROUS GOLD CATALYST

Номер: US20130337995A1
Автор: Baeumer Marcus, Bagge-Hansen Michael, Biener Juergen, Biener Monika M., Neuman Bjoern, Wichmann Andre, Wittstock Arne
Принадлежит:

In one embodiment, a system includes a nanoporous gold structure and a plurality of oxide particles deposited on the nanoporous gold structure; the oxide particles are characterized by a crystalline phase. In another embodiment, a method includes depositing oxide nanoparticles on a nanoporous gold support to form an active structure and functionalizing the deposited oxide nanoparticles. 1. A system , comprisinga nanoporous gold structure; anda plurality of oxide particles deposited on the nanoporous gold structure, wherein the oxide particles are characterized by a crystalline phase.2. The system as recited in claim 1 , wherein the nanoporous gold structure comprises a plurality of ligaments claim 1 , andwherein gold in the ligaments is resistant to sintering at temperatures up to about 600 C.3. The system as recited in claim 2 , wherein the ligaments are characterized by an average diameter in a range from about 25 nm to about 75 nm.4. The system as recited in claim 2 , wherein the ligaments define a plurality of nanopores having an average diameter in a range from about 10 nm to about 50 nm.5. The system as recited in claim 4 , wherein the nanopores are homogenously distributed throughout the nanoporous gold structure claim 4 , wherein the oxides are distributed throughout available nanopores of the nanoporous gold structure.6. The system as recited in claim 1 , wherein the oxide particles include a metal oxide or precursor thereof.7. The system as recited in claim 6 , wherein the metal oxides are selected from a group consisting of: a titanium oxide claim 6 , a cerium oxide claim 6 , a praseodymium oxide and an iron oxide.8. The system as recited in wherein the metal oxides are selected from a group consisting of: a titanium oxide characterized by a predominantly anatase crystalline phase; a cerium oxide characterized by a predominantly fluoride crystalline phase having oxygen vacancies; a praseodymium oxide characterized by a predominantly fluoride crystalline ...

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Номер записи: 52
26-12-2013 дата публикации

HONOKIOL ANALOGS AND THEIR USE IN TREATING CANCERS

Номер: US20130345302A1
Автор: Arbiser Jack L.
Принадлежит:

Compounds, pharmaceutical compositions including the compounds, and methods of preparation and use thereof are disclosed. The compounds are honokiol analogs. The compounds and compositions can be used to treat and/or prevent a wide variety of cancers, including drug resistant cancers. Representative honokiol analogs include diepoxide honokiol analogues. The compounds are believed to function, at least, by inhibiting angiogenesis and/or inducing apoptosis. Thus, the compounds are novel therapeutic agents for a variety of cancers. 1. A compound selected from the group consisting of valproate mono and diesters of honokiol , dichloroacetate mono and diesters of honokiol , and Calkyl phosphate mono and di-esters of honokiol.3. A compound of claim 1 , wherein both of X are O.4. A compound of claim 1 , wherein one of X is O claim 1 , and the other represents a bond between the two carbons to which it is attached.5. A compound of claim 1 , wherein all Y are C bonded to H or a substituent claim 1 , G.6. A compound of claim 1 , wherein each Ris H.7. A compound of claim 1 , wherein each W is CH.8. A compound of claim 1 , wherein two of Rrepresent a dichloroacetate.9. A method for treating a cancer in a mammal claim 1 , comprising administering to the mammal a therapeutically effective amount of a compound of in an amount sufficient to induce apoptosis and/or inhibit angiogenesis claim 1 , such that the growth of the tumor is at least partially inhibited.10. The method of wherein the cancer is selected from a group consisting of hemangioma claim 9 , melanoma claim 9 , rectal carcinoma claim 9 , colon carcinoma claim 9 , breast carcinoma claim 9 , ovarian carcinoma claim 9 , small cell lung carcinoma claim 9 , colon carcinoma claim 9 , chronic lymphocytic carcinoma claim 9 , hairy cell leukemia claim 9 , osophogeal carcinoma claim 9 , prostate carcinoma claim 9 , breast cancer claim 9 , myeloma claim 9 , and lymphoma.11. The method of claim 10 , wherein the cancer is a ...

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Номер записи: 53
09-01-2014 дата публикации

EPOXIDATION PROCESSES

Номер: US20140012019A1
Автор: Liu Albert C., Soo Hwaili
Принадлежит: DOW TECHNOLOGY INVESTMENTS, LLC

The present invention provides rhenium-promoted epoxidation catalysts based upon shaped porous bodies comprising a minimized percentage of their total pore volume being present in pores having diameters of less than one micron, and a surface area of at least about 1.0 m/g. Processes of making the catalysts and using them in epoxidation processes are also provided. 114-. (canceled)15. An epoxidation process , comprising reacting , under epoxidation conditions , a feed comprising ethylene and oxygen in the presence of an epoxidation catalyst comprising silver and a promoting amount of rhenium deposited on a shaped porous body , wherein the shaped porous body comprises less than 20% of its total pore volume being present in pores having diameters of less than 1 micron , and a surface area of at least about 1.3 m/g , wherein the catalyst exhibits a higher activity and/or selectivity when used in the process than a catalyst supported on shaped porous bodies having a greater percentage of their total pore volume in pores having diameters of less than one micron.1618-. (canceled)19. The process of claim 15 , carried out in the gas phase.20. The process of claim 19 , conducted at a temperature of from 200° C. to 300° C.21. The process of or claim 19 , conducted at a pressure of from ambient to 3.0 MPa.22. The process of claim 15 , further comprising converting the ethylene oxide produced into a 1 claim 15 ,2-diol claim 15 , 1 claim 15 ,2-diol ether claim 15 , a 1 claim 15 ,2-carbonate claim 15 , or alkanolamine.23. The process of claim 22 , wherein the conversion comprises reacting the ethylene oxide with water and/or alcohol to produce one or more 1 claim 22 ,2-diols or 1 claim 22 ,2-diol ethers.24. The process of claim 23 , wherein reaction of ethylene oxide and water is conducted in the presence of an acidic or basic catalyst.25. The process of claim 24 , wherein the catalyst is acidic and comprises 0.5 wt % to 1.0 wt % sulfuric acid.26. The process of or claim 24 , ...

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Номер записи: 54
09-01-2014 дата публикации

PROCESS FOR CONDITIONING A HIGH EFFICIENCY ETHYLENE OXIDE CATALYST

Номер: US20140012022A1
Автор: Hinman Paul Victor, Phillips Ailene Gardner, Soo Hwaili, Tupe Ravindra Radhakisan, Zhang Liping
Принадлежит: DOW TECHNOLOGY INVESTMENTS LLC

A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide from ethylene, oxygen, and at least one organic chloride is described. A non-reactive conditioning gas comprising at least one of ethylene, oxygen, and a ballast gas is introduced to the catalyst at a conditioning temperature ranging from 150° C. to 180° C. for a selected period of at least 4 hours. 1. A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide by reacting ethylene , oxygen , and at least one organic chloride over the catalyst , the conditioning process comprising the steps of:introducing a feed gas to the high efficiency silver catalyst at one or more conditioning temperatures ranging from 150° C. to 180° C. for a selected period of time, wherein the selected period of time is at least 4 hours, and the feed gas comprises at least one component selected from the group consisting of ethylene, methane, and nitrogen, and the introducing step occurs such that the catalyst is not simultaneously exposed to ethylene and oxygen during the selected period of time.2. The process for conditioning a high efficiency silver catalyst of claim 1 , wherein the high efficiency silver catalyst is a fresh catalyst.3. The process for conditioning a high-efficiency silver catalyst of claim 1 , wherein the selected period of time is at least 12 hours.4. The process for conditioning a high-efficiency silver catalyst of claim 1 , wherein the selected period of time is no greater than 200 hours.5. The process for conditioning a high-efficiency silver catalyst of claim 1 , wherein the at least one component is ethylene and nitrogen.6. The process for conditioning a high-efficiency silver catalyst of claim 1 , wherein the at least one component is nitrogen.7. The process for conditioning a high-efficiency silver catalyst of claim 1 , wherein the high-efficiency silver catalyst is an aged catalyst.8. The process for conditioning a high-efficiency ...

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Номер записи: 55
16-01-2014 дата публикации

PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE

Номер: US20140018556A1
Автор: VAN WESTRENEN Jeroen, Verhaak Michiel Johannes Franciscus Maria
Принадлежит:

The invention relates to a process for the production of ethylene oxide, comprising the steps of: producing ethylene by converting a stream comprising an oxygenate into a stream comprising ethylene and ethane; producing ethylene oxide by subjecting ethylene and ethane from the stream comprising ethylene and ethane to oxidation conditions resulting in a stream comprising ethylene oxide, unconverted ethylene and ethane; and recovering ethylene oxide from the stream comprising ethylene oxide, unconverted ethylene and ethane. 1. A process for the production of ethylene oxide , comprising the steps of:producing ethylene by converting a stream comprising an oxygenate into a stream comprising ethylene and ethane;producing ethylene oxide by subjecting ethylene and ethane from the stream comprising ethylene and ethane to oxidation conditions resulting in a stream comprising ethylene oxide, unconverted ethylene and ethane; andrecovering ethylene oxide from the stream comprising ethylene oxide, unconverted ethylene and ethane.2. A process according to claim 1 , wherein a stream comprising unconverted ethylene and ethane is separated from the stream comprising ethylene oxide claim 1 , unconverted ethylene and ethane and is recycled to the step of producing ethylene oxide.3. A process according to claim 1 , wherein the stream comprising ethylene and ethane further comprises methane.4. A process according to claim 1 , wherein the stream comprising ethylene and ethane further comprises acetylene and the stream comprising ethylene and ethane is subjected to hydrotreatment to convert any acetylene prior to subjecting ethylene and ethane from the stream comprising ethylene and ethane to oxidation conditions.5. A process according to claim 4 , wherein the stream comprising ethylene and ethane further comprises hydrogen and at least part of the hydrogen is used to convert at least part of the acetylene.6. A process for the production of ethylene oxide claim 4 , comprising the steps of: ...

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Номер записи: 56
16-01-2014 дата публикации

Process for the production of ethylene oxide

Номер: US20140018557A1
Автор: Michiel Johannes Franciscus Maria Verhaak
Принадлежит: Individual

The invention relates to a process for the production of ethylene oxide, comprising the steps of producing ethylene resulting in a stream comprising ethylene and ethane; producing ethylene oxide by subjecting ethylene and ethane from the stream comprising ethylene and ethane to oxidation conditions resulting in a stream comprising ethylene oxide, unconverted ethylene and ethane; and recovering ethylene oxide from the stream comprising ethylene oxide, unconverted ethylene and ethane.

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Номер записи: 57
23-01-2014 дата публикации

METHOD OF STARTING-UP A PROCESS OF PRODUCING AN ALKYLENE OXIDE USING A HIGH-EFFICIENCY CATALYST

Номер: US20140024846A1
Автор: Basrur Arun G., Hinman Paul V., Soo Hwaili, Tupe Ravindra R.
Принадлежит: DOW TECHNOLOGY INVESTMENTS LLC

A method for starting-up a high efficiency alkylene oxide catalyst is described. A feed gas comprising an alkylene, oxygen, and at least one organic chloride is introduced to the catalyst. The molar ratio of oxygen to alkylene, reaction temperature, and overall chloriding effectiveness are adjusted to specified ranges of values within a specified catalyst aging period. 2. The method of claim 1 , further comprising selecting a target alkylene oxide concentration in the reaction product and maintaining the molar ratio of oxygen to alkylene of at least 0.2 no longer than until the start-up concentration of the alkylene oxide in the reaction product is substantially equal to the target concentration of the alkylene oxide in the reaction product.3. The method claim 2 , wherein the step of maintaining the molar ratio of oxygen to the alkylene in the feed gas of at least 0.2 is conducted no longer than until the efficiency of the process to the alkylene oxide is at least 85%.4. The method of claim 2 , wherein the step of maintaining the molar ratio of oxygen to the alkylene in the feed gas of at least 0.2 is conducted no longer than until the start-up concentration of the alkylene oxide in the reaction product is at least 1.5 mole %.5. The method of claim 1 , wherein the step of adjusting both the reaction temperature and the overall chloriding effectiveness comprises adjusting at least one of the reaction temperature and Z* according to the following relationship:{'br': None, 'i': Z*', 'T', '−T', 'S, 'sub': rx', 'o', 'o, '=()/'} [{'sub': 'rx', 'Tis the reactor coolant inlet temperature in ° C.,'}, {'sub': o', 'rx, 'Tis the temperature-axis intercept calculated by extrapolating a plot of Z* versus Tto Z*=0, and'}, {'sub': 'o', 'Sis a slope relating the change in inlet coolant temperature to the corresponding change in Z*.'}], 'wherein,'}6. The method of claim 1 , wherein within a catalyst aging period of no greater than 0.02 kT alkylene oxide/mcatalyst after the reactor is ...

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Номер записи: 58
30-01-2014 дата публикации

EPOXIDATION PROCESS

Номер: US20140031568A1
Автор: Durand Jason, Morin Rudy Anthony, Rokicki Andrzej, Suchanek Wojciech
Принадлежит:

A method for producing ethylene oxide comprising: providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; contacting the one or more feed components with a desulfurization catalyst comprising a high surface area support and an amount of silver, wherein at least 20% of the silver is present as oxidized silver; and contacting the one or more feed components with a silver-containing epoxidation catalyst disposed inside an ethylene oxide reactor to form a reaction gas comprising ethylene oxide. 1. A method for producing ethylene oxide comprising:a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol;b) contacting the one or more feed components with a desulfurization catalyst comprising a high surface area support and an amount of silver, wherein at least 20% of the silver is present as oxidized silver; andc) contacting the one or more feed components with a silver-containing epoxidation catalyst disposed inside an ethylene oxide reactor to form a reaction gas comprising ethylene oxide.2. The method according to claim 1 , wherein the one or more feed components further comprises oxygen and a ballast gas.3. The method according to claim 1 , wherein the process further comprises contacting the one or more feed components with the desulfurization catalyst at a temperature in a range of from about 40° C. to about 400° C.4. The method according to claim 1 , wherein the process further comprises contacting the one or more feed components with the desulfurization catalyst at a pressure in a range of from 0 atm to 50 atm.5. The method according to claim 1 , wherein the process further comprises contacting the one or more feed components with said desulfurization catalyst positioned inside a desulfurization chamber that is located outside the ethylene oxide reactor.6. The method according to claim 1 , wherein the ...

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Номер записи: 59
06-03-2014 дата публикации

METHOD OF SYNTHESIS OF SUBSTITUTED HEXITOLS SUCH AS DIANHYDROGALACTITOL

Номер: US20140066642A1
Автор: Brown Dennis M., Li Mike Tso-Ping
Принадлежит: Del Mar Pharmaceuticals

The present invention provides an efficient method of synthesizing and purifying dianhydrohexitols such as dianhydrogalactitol. In general, as applied to dianhydrogalactitol, the method comprises: (1) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol; (2) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and (3) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol. Another method produces dianhydrogalactitol from dulcitol; this method comprises: (1) reacting dulcitol with a reactant to convert the 1,6-hydroxy groups of dulcitol to an effective leaving group to generate an intermediate; and (2) reacting the intermediate with an inorganic weak base to produce dianhydrogalactitol through an intramolecular S2 reaction. Other methods for the synthesis of dianhydrogalactitol from dulcitol are described. 1. A method for synthesizing and recrystallizing a dianhydrohexitol comprising the steps of:(a) converting a hexahydroxyl-substituted sugar alcohol to a dibromo derivative of the hexahydroxyl-substituted sugar alcohol by reaction of the dulcitol with hydrobromic acid for from about 18 hours to about 36 hours at an elevated temperature;(b) adding the product of step (a) to water, agitating the product of step (a) added to water for from about 18 hours to about 36 hours, filtering the mixture of the product of step (a) and water, washing the mixture with a large volume of water, drying the solid product under nitrogen, and then subsequently washing the dried solid product with a large volume of an aliphatic ether;(c) reacting the product of step (b) with a carbonate of an alkali metal in a polar aprotic solvent at an elevated temperature;(d) filtering the product of step (c) to remove the solids;(e) washing the solids removed in step (d) with a polar aprotic solvent and combining the washings with ...

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Номер записи: 60
13-03-2014 дата публикации

METHOD FOR PRODUCING EPOXY COMPOUND

Номер: US20140073806A1
Автор: Ezaki Yoichiro, Sasagawa Naoki, Takumi Kiyoshi
Принадлежит: ARAKAWA CHEMICAL INDUSTRIES, LTD.

To provide a method for producing an epoxy compound having fewer residual quaternary salt compound by removing the quaternary salt compound from an organic solution containing an epoxy compound and the quaternary salt compound. 1. A method for producing an epoxy compound comprising the following step 1 , step 2 , and step 3:step 1: a step in which in a mixture liquid containing an olefin compound, an aqueous hydrogen peroxide solution, a quaternary salt compound, a heteropoly acid, and an organic solvent, the olefin compound is subjected to the oxidation reaction to obtain an organic solution (A) containing an epoxy compound,step 2: a step in which an aqueous inorganic alkali solution is allowed to contact with the organic solution (A) to obtain an organic solution (B) containing the epoxy compound, andstep 3: a step in which an acidic aqueous solution containing a polymer having at least one functional group selected from the group consisting of a carboxyl group and a sulfonic acid group is allowed to contact with the organic solution (B) to obtain an organic solution (C) containing the epoxy compound.2. The production method according to claim 1 , wherein the olefin compound is at least one compound selected from the group consisting of a cyclic olefin compound and a long-chain linear olefin compound.3. The production method according to claim 1 , wherein the amount used of the hydrogen peroxide is 0.001 to 10 equivalents per one carbon-carbon double bond contained in the olefin compound.4. The production method according to any one of claims 1 , wherein the quaternary salt compound is a quaternary ammonium salt compound having at least one alkyl group with 6 to 20 carbon atoms in the molecule.5. The production method according to any one of claims 1 , wherein the amount used of the quaternary salt compound is 0.0001 to 20 moles per 100 moles of the olefin compound.6. The production method according to any one of claims 1 , wherein the amount used of the ...

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Номер записи: 61
20-03-2014 дата публикации

METHOD OF QUALIFYING MATERIAL FOR USE IN CLEANING OF ALKYLENE OXIDE EQUIPMENT

Номер: US20140080219A1
Автор: Hinman Paul Victor
Принадлежит: DOW TECHNOLOGY INVESTMENTS, LLC

The present invention relates to methods for qualifying material for using in the cleaning of alkylene oxide equipment. Qualified material is not expected to contribute to the formation of determinable amounts of alkylene oxide by-products. Methods of cleaning alkylene oxide equipment, and alkylene oxide processes incorporating these methods are also provided. 1. A method for qualifying a material for use in cleaning of alkylene oxide equipment , comprising:Determining a pre-contact amount of one or more alkylene oxide by-products in an alkylene oxide feed;Causing the material and the alkylene oxide feed to contact each other;Determining a post-contact amount of one or more alkylene oxide by-products in the feed after contact; andComparing the pre-contact amount to the post-contact amount, and if the pre-contact amount is greater than or equal to the post-contact amount, qualifying the material for use in the cleaning of the alkylene oxide reactor.2. The method of claim 1 , wherein the alkylene oxide feed comprises substantially pure alkylene oxide claim 1 , and the step of determining the pre-contact amount comprises assuming the pre-contact amount of the one or more alkylene oxide by-products to be substantially zero.3. The method of claim 2 , wherein if the post-contact amount is greater than zero claim 2 , the material is disqualified for use in the cleaning of alkylene oxide reactors.4. The method of claim 3 , wherein the step of determining the post-contact amount comprises conducting a qualitative measurement.5. The method of claim 1 , wherein the alkylene oxide feed comprises a feed introduced into and/or generated by an alkylene oxide process and wherein the step of determining the pre-contact amount comprises conducting a quantitative measurement of one or more alkylene oxide by-products in the feed prior to contact with the material.6. The method of claim 1 , wherein the alkylene oxide feed comprises a feed introduced into and/or generated by an alkylene ...

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Номер записи: 62
10-04-2014 дата публикации

CATALYST AND CATALYST CARRIER

Номер: US20140100379A1
Автор: Lockemeyer John R., Richard Michael A.
Принадлежит:

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m/g) no greater than 0.50 g/m. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt %, relative to the weight of the catalyst. A reactor to system for the epoxidation of olefins is also disclosed. 1. A carrier comprising at least 85 wt percent alpha alumina , at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO , said carrier comprising a water absorption no greater than 0.35 gram of water/gram of carrier and a ratio of water absorption (gram of water/gram of carrier) to surface area (mof carrier/gram of carrier) no greater than 0.50 gram of water/mof carrier.2. The carrier of wherein said SiOdoes not exceed 0.40 wt percent.3. The carrier of wherein said SiOdoes not exceed 0.30 wt percent.4. The carrier of wherein said NaO does not exceed 0.03 wt percent.5. The carrier of wherein said carrier comprises at least 0.15 wt percent SiO.6. The carrier of wherein said ratio does not exceed 0.45 g/m.7. The carrier of wherein said ratio does not exceed 0.40 g/m.8. The carrier of wherein said water absorption does not exceed 0.30 g/g.9. The carrier of wherein said surface area exceeds 0.70 m/g.10. The carrier of wherein said surface area exceeds 0.75 m/g.11. The carrier of claim 1 , wherein said carrier further comprises a total pore volume and at least 60% of the total pore volume is contributed by pores having diameters within a range no greater than 3.8 microns.12. The carrier of wherein at least 80% of the total pore volume is contributed by pores having diameters within a ...

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Номер записи: 63
06-01-2022 дата публикации

CONTINUOUS ISOLATION OF CANNABIDIOL AND CONVERSION OF CANNABIDIOL TO DELTA 8-TETRAHYDROCANNABINOL AND DELTA 9-TETRAHYDROCANNABINOL

Номер: US20220002259A1
Автор: CHO Joon, Tegen Mark G.
Принадлежит:

In alternative embodiments, provided are processes comprising the continuous isolation and purification of cannabinoids and further isomerization of the purified cannabidiol to Δtetrahydrocannabinol (ΔTHC) and Δtetrahydrocannabinol (ΔTHC). In alternative embodiments, provided are processes for converting Δ8-THC into Δ-THC. In alternative embodiments, provided are processes for the industrial scale continuous isolation and purification of cannabinoids and further isomerization of the purified cannabidiol to Δ-THC. 1. A method or process for obtaining or purifying a substantially pure ΔTHC from a natural or a synthetic source , comprising:{'sup': 9', '8, '(a) obtaining or being provided a first extract, aliquot or sample of the natural or synthetic source comprising a cannabidiol (CBD) and/or ΔTHC and/or ΔTHC and/or other cannabinoids from the natural or the synthetic source;'}(b) dissolving the first extract aliquot or sample in a first solvent, or diluting the first extract aliquot or sample in a first solvent;{'sup': 9', '8, '(c) loading the solvent-dissolved or diluted first extract aliquot or sample onto a first chromatography column, wherein the ΔTHC and/or ΔTHC and/or other cannabinoids are reversibly bound to the first chromatography column;'}{'sup': 9', '8, '(d) eluting the ΔTHC and/or ΔTHC and/or other cannabinoids off the first chromatography column with an elution solvent mixture, wherein optionally the eluting is a gradient elution;'}{'sup': 9', '8, '(e) collecting or isolating the ΔTHC and/or ΔTHC and/or other cannabinoids from said elution solvent mixture;'}(f) adding a second solvent of opposite polarity (to the elution solvent mixture) to said elution solvent mixture;{'sup': 9', '8, '(g) removing all or substantially most of the second solvent, thereby leaving a first extract comprising a plurality of cannabinoids comprising the ΔTHC and/or ΔTHC and/or other cannabinoids;'}(h) dissolving the first extract comprising the plurality of cannabinoids in a ...

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Номер записи: 64
07-01-2021 дата публикации

GUARD BED SYSTEM AND PROCESS

Номер: US20210001298A1
Автор: BASTINGS Roel Guillaume Hubertus Leonardus, Black Jesse Raymond, EVANS Wayne Errol, VAN KLEECK David Allen, Ward Gregory John
Принадлежит:

The invention provides a reaction system for the production of ethylene carbonate and/or ethylene glycol. The system having a guard bed system upstream of a catalytic EO reactor. The guard bed system having a feed line supplying a gaseous feed to be treated and an effluent line configured to remove the treated gaseous feed. The guard bed system has two or more guard bed vessels arranged in series in sequential order, each having an inlet, a bed of guard bed material and an outlet. The inlet of each guard bed vessel is attached by means of valves to both the feed line and the outlet of the guard bed vessel preceding it in sequential order. The outlet of each guard bed vessel is attached by means of valves to both the effluent line and to the inlet of the guard bed vessel following it in sequential order. 2. A process as claimed in claim 1 , wherein the guard bed material is a silver on alumina-based material or a palladium/gold based material claim 1 , preferably supported on silica.3. A process as claimed in claim 2 , whereinthe guard bed material is a silver on alumina-based material and the guard bed vessels are operated at a temperature of at least 100° C. and at most 145° C.; orthe guard bed material is a palladium/gold based material, preferably supported on silica, and the guard bed vessels are operated at a temperature of at least 65° C. and at most 95° C.4. A process as claimed in claim 1 , wherein the iodide-containing impurities formed in the EO absorber include vinyl iodide and alkyl iodides such as ethyl and methyl iodide.5. A process as claimed in claim 1 , wherein each bed of guard bed material is a radial fixed bed.6. A process as claimed in claim 1 , wherein the reaction system further comprises a carbon dioxide absorber and the guard bed system is also upstream of the carbon dioxide absorber claim 1 , which is upstream of the catalytic EO reactor.7. A process as claimed in claim 1 , wherein two or more guard bed systems operated by this process are ...

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Номер записи: 65
02-01-2020 дата публикации

METHODS FOR CONDITIONING AN ETHYLENE EPOXIDATION CATALYST AND ASSOCIATED METHODS FOR THE PRODUCTION OF ETHYLENE OXIDE

Номер: US20200001277A1
Автор: LOCKEMEYER John Robert, MATUSZ Marek, PADDOCK Robert Lewis, Yeates Randall Clayton
Принадлежит:

Methods for conditioning an ethylene epoxidation catalyst are provided. The conditioning methods comprise contacting an ethylene epoxidation catalyst comprising a carrier, having silver and a rhenium promoter deposited thereon, with a conditioning feed gas comprising oxygen for a period of time of at least 2 hours at a temperature that is above 180° C. and at most 250° C., wherein the contacting of the ethylene epoxidation catalyst with the conditioning feed gas occurs in an epoxidation reactor and in the absence of ethylene. Associated methods for the epoxidation of ethylene are also provided. 1. A method for the conditioning of an ethylene epoxidation catalyst comprising:contacting an ethylene epoxidation catalyst comprising a carrier, having silver and a rhenium promoter deposited thereon, with a conditioning feed gas comprising oxygen for a period of time of at least 2 hours at a temperature that is above 180° C. and at most 250° C., wherein the contacting of the ethylene epoxidation catalyst with the conditioning feed gas occurs in an epoxidation reactor and in the absence of ethylene.2. The method of wherein the conditioning gas further comprises an inert gas and an organic chloride.3. The method of wherein the temperature is from at least 185° C. to at most 250° C.4. The method of wherein the temperature is from at least 185° C. to at most 245° C.5. The method of wherein the conditioning feed gas comprises oxygen in a concentration of from 0.5 to 21 mole-% claim 1 , relative to the total conditioning feed gas.6. The method of wherein the period of time is from 2 hours to 200 hours.7. The method of wherein the period of time is from 2 hours to 72 hours.8. The method of further comprising contacting the ethylene epoxidation catalyst with a sweeping gas.9. A method for the epoxidation of ethylene comprising:contacting an ethylene epoxidation catalyst comprising a carrier, having silver and a rhenium promoter deposited thereon, with a conditioning feed gas ...

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Номер записи: 66
07-01-2016 дата публикации

PROCESS FOR THE PREPARATION OF SUBSTITUTED OXIRANES AND TRIAZOLES

Номер: US20160002189A1
Автор: Gebhardt Joachim, Lohmann Jan Klaas, Rack Michael, SCHAEFER Peter, Vogelbacher Uwe Josef, ZIERKE Thomas
Принадлежит:

The present invention relates to a process for the preparation of the compounds II 119-. (canceled)21: The process of claim 20 , wherein more than 1.5 equivalents to 4 equivalents of water in relation to one equivalent of compound III are used.22: The process of claim 20 , wherein 1.3 to 1.6 equivalents of the trimethylsulfonium methylsulfate IV per 1 equivalent of compound III are used.23: The process of claim 20 , wherein at least 3 equivalents of base per 1 equivalent of compound III are used.24: The process of claim 20 , wherein as reagent IV an aqueous solution of trimethylsulfonium methylsulfate III containing 33 to 37 wt % of trimethylsulfonium kation is used.27: The process of claim 25 , wherein the product resulting from step (ii) or (iia) claim 25 , respectively claim 25 , is crystallized from toluol and/or an aliphatic alcohol.28: The process of claim 27 , wherein the aliphatic alcohol is selected from methanol claim 27 , ethanol claim 27 , n-propanol claim 27 , iso-propanol claim 27 , n-butanol claim 27 , isobutanol or any mixture thereof.29: The process of claim 25 , wherein the base used in step (ii) or (iia) claim 25 , respectively claim 25 , is selected from NaOH claim 25 , KOH claim 25 , NaCOand KCO.30: The process of claim 25 , wherein the base used in step (ii) or (iia) claim 25 , respectively claim 25 , is selected from NaOH and KOH.31: The process of claim 25 , wherein the amount of base used in step (ii) or (iia) claim 25 , respectively claim 25 , is equal to or less than 0.6 equivalents per 1 equivalent of compound II.32: An aqueous solution of trimethylsulfonium methylsulfate IV containing 33 to 37 wt % of trimethylsulfonium kation.33: A use of the aqueous solution of trimethylsulfonium methylsulfate IV according to for the synthesis of an oxirane from the respective oxo compound.34: A crystalline form of 2-[4-(4-chlorophenoxy)-2-(trifluoromethyl)phenyl]-1-(1 claim 32 ,2 claim 32 ,4-triazol-1-yl)propane-2-ol which claim 32 , in an X-ray ...

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Номер записи: 67
04-01-2018 дата публикации

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

Номер: US20180002299A1
Автор: BOLZ David, WIEDERHOLD Holger
Принадлежит:

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising iso-butane to provide a stream comprising iso-butene and hydrogen and separating this stream into a stream consisting essentially of hydrogen and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; reacting a part or all of the stream consisting essentially of hydrogen with oxygen, providing a stream comprising hydrogen peroxide; and reacting a part or all of the stream comprising hydrogen peroxide with propene in the presence of an epoxidation catalyst to provide propene oxide. 19-. (canceled)10. An integrated process for making propene oxide and an alkyl tert-butyl ether , comprising:a) a step of dehydrogenating a feed stream S1 comprising iso-butane, to provide a stream, S2, comprising iso-butene and hydrogen;b) a separation step separating stream S2 into a stream, S3, consisting essentially of hydrogen and a stream, S4, comprising iso-butene;c) a step of reacting a part or all of stream S4 with an alkanol in the presence of a solid acid catalyst, to provide a stream, S5, comprising an alkyl tert-butyl ether;d) a separation step separating the alkyl tert-butyl ether from stream S5;e) a step of reacting a part or all of stream S3 with oxygen, to provide a stream, S6, comprising hydrogen peroxide;f) a step of reacting a part or all of stream S6 with propene in the presence of an epoxidation catalyst, to provide a stream, S7, comprising propene oxide; andg) a separation step separating propene oxide from stream S7.11. The process of claim 10 , wherein the alkanol is methanol.12. The process of claim 10 , wherein a stream claim 10 , S8 claim 10 , comprising unreacted iso-butane is separated in step d) claim 10 , a stream S9 comprising more than 80% by weight iso-butane is separated from stream S8 and stream S9 ...

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Номер записи: 68
04-01-2018 дата публикации

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

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

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

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Номер записи: 69
02-01-2020 дата публикации

METHODS OF SYNTHESIZING A PROSTACYCLIN ANALOG

Номер: US20200002261A1
Автор: Chambournier Gilles, Endres Gregory William, Fedij Victor, Hering Kirk William, II Thomas James, Krell, MAHMOUD Hussien Mahmoud
Принадлежит: CAYMAN CHEMICAL COMPANY INCORPORATED

The present invention provides processes for preparing a prostacyclin analogue of Formula I 4. The method of claim 3 , wherein the transition metal catalyst comprises a compound or complex either of which comprises copper having a +1 oxidation state.5. The method of claim 4 , wherein the transition metal catalyst comprises CuI.15. The method of claim 14 , further comprising the step of:xxiv) reacting the compound of Formula I with diethanolamine in the presence of an organic solvent to generate the diethanolamine salt of the compound of Formula I.18. The method of claim 17 , wherein the derivatizing reagent comprises 3 claim 17 ,5-dinitrobenzoyl chloride and the alcohol comprises methanol.20. The method of claim 19 , further comprising the step:xlii) recrystallizing the precipitate of step xli). This application is a divisional application of U.S. patent application Ser. No. 15/874,093, filed Jan. 18, 2018, which is a divisional application of U.S. patent application Ser. No. 15/583,457, filed May 1, 2017, now U.S. Pat. No. 9,908,834, issued Mar. 6, 2018, which is a divisional application of U.S. patent application Ser. No. 14/650,234, filed Jun. 5, 2015, which is a 35 U.S.C. § 371 United States National Phase Application of PCT Application Serial No. PCT/US2013/073474, filed Dec. 6, 2013, which claims the benefit of and priority to U.S. provisional application Ser. No. 61/734,672, filed Dec. 7, 2012, and 61/777,882, filed Mar. 12, 2013. The entire contents of the aforementioned disclosures are incorporated herein by reference in their entireties.The present invention relates to processes and intermediates for the preparation of prostacyclin analog that are useful for treating hypertension and other diseases.Prostacyclin derivatives and analogs are useful pharmaceutical compounds possessing activities such as platelet aggregation inhibition, gastric secretion reduction, lesion inhibition, vasodilation, and bronchodilation.Treprostinil is a synthetic prostacyclin ...

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Номер записи: 70
03-01-2019 дата публикации

PROCESS FOR THE EPOXIDATION OF PROPENE TO PROPYLENE OXIDE

Номер: US20190002422A1
Автор: Madenjian Edward O., Marshall Kenric A.
Принадлежит:

A continuous process for the preparation of propylene oxide, comprising providing a liquid feed stream comprising propene, hydrogen peroxide, methanol, water, at least one dissolved potassium salt of hydroxyethylidenediphosphonic acid, and optionally propane; passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MFI, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, methanol, water, and the at least one dissolved potassium salt of hydroxyethylidenediphosphonic acid, and optionally propane; removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, methanol, water, at least a portion of the at least one potassium salt of hydroxyethylidenediphosphonic acid, and optionally propane. 1. A continuous process for preparing propylene oxide , the process comprising:(i) passing a liquid feed stream, comprising propene, hydrogen peroxide, methanol, water, at least one dissolved potassium salt of hydroxyethylidene diphosphonic acid, and optionally propane, into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MFI, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, to obtain a reaction mixture comprising propylene oxide, methanol, water, and the at least one dissolved potassium salt of hydroxyethylidene diphosphonic acid, and optionally propane; and(ii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, methanol, water, at least a portion of the at least one potassium salt of hydroxyethylidenediphosphonic acid, and optionally propane.2. The process of claim 1 , wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of hydroxyethylidene diphosphonic ...

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Номер записи: 71
04-01-2018 дата публикации

PURIFICATION OF PLASTICIZERS

Номер: US20180002301A1
Автор: SUNDHARSAN Naveen
Принадлежит: ARCHER DANIELS MIDLAND COMPANY

Plasticizers are purified by contact with a coalescing filter to effect removal of ions, metals, monohydric alcohols, and polyhydric alcohols. The resulting purified plasticizer compositions are suitable for use in PVC due to their low levels of impurities that reduce PVC utility. 1. A process for purifying plasticizer compositions , comprising;contacting a plasticizer composition containing at least one impurity selected from the group consisting of ions, metals, monohydric alcohols, and polyhydric alcohols with a coalescing filter to effect phase separation into a phase enriched in impurities and a purified plasticizer effluent;wherein the content of at least one impurity is reduced in the purified plasticizer effluent phase.2. The process of claim 1 , further comprising recovering the purified plasticizer effluent phase.3. The process of claim 1 , wherein the purified plasticizer effluent phase is characterized by a content of 40 ppm or less of at least one metal or ion selected from the group consisting of sodium claim 1 , iron claim 1 , calcium claim 1 , phosphorus claim 1 , zinc claim 1 , boron claim 1 , molybdenum claim 1 , and aluminum.4. The process of claim 1 , wherein the purified plasticizer effluent phase is characterized by an ion content of 10 ppm or less of at least one metal or ion selected from the group consisting of sodium claim 1 , iron claim 1 , calcium claim 1 , phosphorus claim 1 , zinc claim 1 , boron claim 1 , molybdenum claim 1 , and aluminum.5. The process of claim 1 , wherein the purified plasticizer effluent phase is characterized by the reduction of at least one metal or ion content below the detection limits of an ICP spectrometer claim 1 , wherein the metal or ion content of the plasticizer was above the detection limits of the ICP spectrometer before contacting with the coalescing filter.6. The process of claim 1 , wherein the purified plasticizer effluent phase is characterized by a reduction in content of at least one monohydric ...

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Номер записи: 72
07-01-2021 дата публикации

Propene recovery by scrubbing with a solvent/water mixture

Номер: US20210002241A1
Автор: Andrei-Nicolae Parvulescu, Bernd Metzen, Christian Mueller, Daniel Urbanczyk, Dominic RIEDEL, Joaquim Henrique Teles, Markus Weber, Marvin KRAMP, Nicolai Tonio Woerz, Ulrich MUELLERE, Ulrike Wegerle
Принадлежит: BASF SE

The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream (S2) which is enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (v) separating propane from the stream (S1) in a separation zone, comprising subjecting the stream (S1) to washing conditions in a scrubber, wherein a solvent mixture comprising organic solvent and water is added as entraining agent, obtaining a bottoms stream (S3), which comprises organic solvent, water and at least 70 weight-% of the propene comprised in (S1); and a gaseous top stream (S4), which comprises at least 5 weight-% of the propane comprised in stream (S1).

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Номер записи: 73
13-01-2022 дата публикации

Process for the Oxidation of Carbon-Containing Organic Compounds with Electrochemically Generated Oxidizing Agents and Arrangement for Carrying Out the Process

Номер: US20220010443A1
Автор: MATTHÉE Thorsten, NEUBER Rieke, Waldvogel Siegfried, ZIRBES Michael
Принадлежит:

The invention relates to a process for the oxidation of carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1, wherein an oxidizing of these carbon-containing organic compounds to be oxidized is performed with electrochemically generated C—O—O oxidizing agents, in particular peroxodicarbonate. Also described is the use of C—O—O oxidizing agents generated electrochemically from carbonate, in particular peroxodicarbonate, as oxidizing agents for the oxidation of carbon-containing organic compounds, in particular carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1. Finally, an arrangement for the oxidation of carbon-containing organic compounds is provided, comprising a first unit for the electrochemical preparation of C—O—O oxidizing agents generated electrochemically from carbonate, in particular peroxodicarbonate, and a second unit for the oxidizing of the carbon-containing organic compound with the C—O—O oxidizing agent generated electrochemically from carbonate, in particular peroxodicarbonate. In this case, these two units are connected to one another in such a way that an ex situ generated oxidizing agent can be fed to the second unit. 1. A process for the oxidation of carbon-containing organic compounds that have at least one bond with bond order ≥1 , comprising the step ofoxidizing said carbon-containing organic compounds with one or more electrochemically generated C—O—O oxidants to produce one or more oxidized or oxygenated, carbon-containing organic compounds.2. The process for the oxidation of carbon-containing organic compounds as claimed in claim 1 , wherein the one or more C—O—O oxidants comprise peroxydicarbonate claim 1 , generated electrochemically from carbonate using an electrolysis assembly comprising at least one cathode claim 1 , at least one diamond-coated anode claim 1 , and a carbonate-containing electrolyte that is pumped at a flow rate ...

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Номер записи: 74
01-01-2015 дата публикации

NEW CATALYTIC SYSTEM

Номер: US20150005535A1
Автор: Bonrath Werner, Iouranov Igor, Kiwi-Minsker Lioubov
Принадлежит: DSM IP ASSETS B.V.

The present invention relates to a structured catalyst based on sintered metal fibers (SMF) coated by a non-acidic metal oxide layer impregnated with Pd and Agnanopartides, characterized in that the ratio of the Pd:Ag is 1:1 to 10:1, as well as the use of such a catalyst in selective catalytic hydrogenations of organic compounds. 1. A structured catalyst based on sintered metal fibers (SMF) coated by a non-acidic metal oxide layer impregnated with Pd- and Ag-nanoparticles , characterized in that the ratio of Pd:Ag-nanoparticles is 1:1 to 10:1.2. A structured catalyst according to claim 1 , wherein the SMF consists of an alloy free from Al.3. A structured catalyst according to claim 2 , wherein alloy is stainless steel.4. A structured catalyst according to claim 1 , wherein the SMF consist of a FCrAl alloy.5. A structured catalyst according to claim 1 , wherein the non-acidic metal oxide layer comprises ZnO and optionally at least one further metal oxide wherein the metal is chosen from the group consisting of Cr claim 1 , Mn claim 1 , Mg claim 1 , Cu and Al.6. A structured catalyst according to claim 1 , wherein the catalyst comprises between 0.01 and 20 wt-% claim 1 , based on the total weight of the catalyst claim 1 , of ZnO claim 1 , preferably between 0.1 and 10 wt-% more preferably between 1.5 and 10 wt-% and most preferably between 2 and 8 wt-%.7. A structured catalyst according to claim 1 , wherein the Pd-nanoparticles have an average particle size of between 0.5 and 20 nm claim 1 , preferably of between 2 and 15 nm claim 1 , more preferably of between 5 and 12 nm and most preferably of between 7 to 10 nm.8. A structured catalyst according to claim 1 , wherein the Ag-nanoparticles have an average particle size of between 0.5 and 10 nm claim 1 , preferably of between 2 and 10 nm claim 1 , more preferably of between 5 and 10 nm and most preferably of between 7 to 10 nm.9. A structured catalyst according to claim 1 , wherein the ratio of the Pd- and Ag- ...

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Номер записи: 75
14-01-2016 дата публикации

UNSATURATED FATTY ACID ESTER-BASED COMPOSITIONS USEFUL AS PLASTIC ADDITIVES

Номер: US20160009673A1
Автор: KAZEMIZADEH Mohammad R., Maixner David E.
Принадлежит: Arkema Inc.

Compositions useful as plastic additives may be prepared from renewable resources such as vegetable oils by functionalizing an unsaturated fatty acid ester with epoxy, acyloxy, and optionally alkoxy groups. 1. A compound comprised of a fatty acid ester moiety , wherein the fatty acid ester moiety comprises at least one epoxy group and wherein the fatty acid ester moiety is substituted at least with a first substituent which is a first acyloxy group and with a second substituent which is a second acyloxy group , which may be the same as or different from the first acyloxy group , or an alkoxy group , wherein the first substituent and the second substituent are substituted on adjacent carbon atoms in the fatty acid ester moiety.2. The compound of claim 1 , wherein the fatty acid ester moiety is selected from the group consisting of fatty acid monoesters claim 1 , monoglycerides claim 1 , diglycerides claim 1 , triglycerides claim 1 , and fatty acid esters of polyols other than glycerin.3. The compound of claim 1 , wherein the first acyloxy group is a C2-C24 aliphatic acyloxy group.4. The compound of claim 1 , wherein the first acyloxy group has a structure R—C(═O)—O— claim 1 , wherein R is a straight chain claim 1 , branched or alicyclic claim 1 , saturated or unsaturated hydrocarbyl group containing one to 23 carbon atoms.5. The compound of claim 1 , wherein the first acyloxy group is an acetoxy group.6. The compound of claim 1 , wherein the second substituent is a C2-C24 aliphatic acyloxy group.7. The compound of claim 1 , wherein the second substituent has a structure R—C(═O)—O— claim 1 , wherein R is a straight chain claim 1 , branched or alicyclic claim 1 , saturated or unsaturated hydrocarbyl group containing one to 23 carbon atoms.8. The compound of claim 1 , wherein the second substituent is a C1-C24 alkoxy group.9. The compound of claim 1 , wherein the second substituent has a structure R1—O— claim 1 , wherein R1 is a straight chain claim 1 , branched or ...

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Номер записи: 76
09-01-2020 дата публикации

SELECTIVE SOLID CATALYST FOR TAIL END OF OLEFIN-EPOXIDATION FLOW REACTOR

Номер: US20200009543A1
Автор: Katz Alexander, Okrut Alexander
Принадлежит:

In one example, a method for converting a first compound into a second compound is provided. The method includes providing the first compound in an entrance of a flow through reactor, wherein the entrance comprises a first catalyst and an oxidant, converting the first compound and the oxidant into the second compound as the first compound and the oxidant contact the first catalyst in the entrance of the flow through reactor while moving towards a tail end of the flow through reactor, and converting the first compound and the oxidant into the second compound via a solid catalyst comprising a white crystalline solid with a titanium content of about 0.5 to about 1.5 weight percent (wt %) in the tail end of the flow through reactor. 1. A method for converting a first compound into a second compound , comprising:providing the first compound in an entrance of a flow through reactor, wherein the entrance comprises a first catalyst and an oxidant;converting the first compound and the oxidant into the second compound as the first compound and the oxidant contact the first catalyst in the entrance of the flow through reactor while moving towards a tail end of the flow through reactor; andconverting the first compound and the oxidant into the second compound via a solid catalyst comprising a white crystalline solid with a titanium content of about 0.5 to about 1.5 weight percent (wt %) in the tail end of the flow through reactor.2. The method of claim 1 , wherein a temperature of the entrance of the flow through reactor is approximately 40 degrees Celsius.3. The method of claim 1 , wherein conversion of the oxidant in the tail end is greater than 80% at temperatures greater than 110 degrees Celsius.4. The method of claim 1 , wherein the first compound comprises an olefin and the second compound comprises epoxide.5. The method of claim 1 , wherein the oxidant comprises an organic hydroperoxide.6. The method of claim 1 , wherein the first catalyst comprises a solid catalyst or a ...

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Номер записи: 77
08-01-2015 дата публикации

PROCESS FOR SYNTHESIS OF SYN AZIDO EPOXIDE AND ITS USE AS INTERMEDIATE FOR THE SYNTHESIS OF AMPRENAVIR & SAQUINAVIR

Номер: US20150011782A1
Автор: Gadakh Sunita Khanderao, Rekula Reddy Santhosh, Sudalai Arumugam
Принадлежит:

Disclosed herein is a novel route of synthesis of syn azide epoxide of formula 5, which is used as a common intermediate for asymmetric synthesis of HIV protease inhibitors such as Amprenavir, Fosamprenavir, Saquinavir and formal synthesis of Darunavir and Palinavir obtained by Cobalt-catalyzed hydrolytic kinetic resolution of racemic anti-(2SR,3SR)-3-azido-4-phenyl-1,2-epoxybutane (azido-epoxide). 2. The process according to claim 1 , wherein the allylic alcohol is aryl substituted or unsubstituted butene alcohol.3. The process according to claim 1 , wherein the Lewis acid is selected from the group consisting of BF3 claim 1 , anhyd. A1C13 claim 1 , PF5 claim 1 , TiC14 claim 1 , Ti(OiPr)4 claim 1 , zinc bromide and cerium(III) Chloride.4. The process according to claim 1 , wherein the source of azide anion is selected from inorganic azide such as sodium azide claim 1 , chlorine claim 1 , bromine claim 1 , and iodine azides or organic azide such as tosyl azide claim 1 , trimethylsilyl azide in suitable organic solvent.5. The process according to claim 1 , wherein the hydrolytic kinetic resolution is carried out in presence of (S claim 1 ,S)-Co(Salen)acetate complex in molar concentration in the range of 0.2-0.8 mol % in suitable organic solvent.6. An enantioselective synthesis of HIV protease inhibitors from syn azido epoxide of formula (+)-5 comprising converting said syn azido epoxide to said HIV protease inhibitors claim 1 , wherein said syn azido epoxide is prepared by a process comprising:i) subjecting allylic alcohol to epoxidation with m-chloroperbenzoic acid (mCPBA) to obtain racemic epoxy alcohol;ii) ring opening of epoxide with azide anion in presence of Lewis acid to produce the anti-azido alcohol, followed by selective tosylation of primary alcohol to afford tosylate;iii) treating tosylate with base to obtain racemic azido epoxide;iv) subjecting racemic azido epoxide to hydrolytic kinetic resolution to obtain corresponding 1,2-diol and syn azido epoxide ...

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Номер записи: 78
10-01-2019 дата публикации

METHODS OF PRODUCING EPOXIDIZED FATTY ACID ALKYL ESTERS USEFUL AS PLASTICIZERS

Номер: US20190010526A1
Автор: Bonnet Cecile N., KAZEMIZADEH Mohammad R., Maixner David E.
Принадлежит:

Epoxidized fatty acid alkyl esters useful as plasticizers are obtained by reacting epoxidized fatty acid triglycerides with alcohol in the presence of an enzyme having transesterification activity. 1. A process of making epoxidized fatty acid alkyl esters , wherein the process comprises reacting one or more epoxidized fatty acid triglycerides with one or more monohydric alcohols in the presence of at least one enzyme having transesterification activity.2. The process of claim 1 , wherein the one or more monohydric alcohols is or are selected from the group consisting of C1-C10 alkanols.3. The process of claim 1 , wherein the one or more monohydric alcohols is or are selected from the group consisting of methanol claim 1 , ethanol claim 1 , propanol claim 1 , butanol claim 1 , octanol and combinations thereof.4. The process of any of wherein the at least one enzyme having transesterification activity includes at least one lipolytic enzyme.5. The process of wherein the at least one enzyme having transesterification activity includes at least one enzyme selected from the group consisting of lipases claim 1 , phospholipases and cutinases.6. The process of wherein the epoxidized fatty acid triglycerides have been obtained by epoxidation of one or more unsaturated fatty acid triglycerides selected from vegetable oils and fats and animal oils and fats.7. The process of wherein a reaction product is obtained which is comprised of epoxidized fatty acid alkyl esters and free fatty acids and the process comprises an additional step of converting at least a portion of the free fatty acids in the reaction product to fatty acid salts.8. The process of claim 7 , wherein the fatty acid salts are selected from the group consisting of alkaline earth and zinc salts of fatty acids.9. The process of wherein the additional step of converting at least a portion of the free fatty acids to fatty acid salts comprises contacting the reaction product with at least one of calcium oxide or zinc ...

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Номер записи: 79
19-01-2017 дата публикации

METHOD FOR THE SYNTHESIS OF SUPPORTED GOLD (AU) NANOPARTICLES FOR EPOXIDATION REACTIONS

Номер: US20170014805A1
Автор: Al-Hazmi Mohammed H.
Принадлежит:

Processes for preparing supported gold nanoparticle catalysts are provided. In an exemplary embodiment, the process includes adding a solution of a phosphorus compound to a solution of chloro (dimethyl sulfide) gold (I) to obtain a solution of chloro (phosphorus compound) gold (I) complex, adding the solution of chloro (phosphorus compound) gold (I) complex to a solution of silver nitrate to obtain a solution of nitro (phosphorus compound) gold (I) complex, applying the solution of nitro (phosphorus compound) gold (I) complex to a metal hydroxide support, drying the metal hydroxide support; and calcining the dried metal hydroxide support to form the supported gold nanoparticle catalyst. Supported gold nanoparticle catalysts prepared by the process and processes for oxidizing ethylene to ethylene oxide in the presence of the supported gold nanoparticle catalysts are also provided. 1. A process for preparing a supported gold nanoparticle catalyst , the process comprising: [{'sub': 1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12, 'wherein the phosphorus compound is selected from the group consisting of a phosphine having a formula of PRRR, a phosphinite having a formula of P(OR)RR, a phosphonite having a formula of P(OR)(OR)R, a phosphite having a formula of P(OR)(OR)(OR), or a combination comprising at least one of the foregoing; and'}, {'sub': 1', '12, 'wherein Rto Rare each independently an alkyl, substituted alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, or a combination comprising at least one of the foregoing;'}], 'adding a solution of a phosphorus compound to a solution of chloro (dimethyl sulfide) gold (I) to obtain a solution of chloro (phosphorus compound) gold (I) complex,'}adding the solution of chloro (phosphorus compound) gold (I) complex to a solution of silver nitrate to obtain a solution of nitro (phosphorus compound) gold (I) complex;applying the solution of nitro (phosphorus compound) gold (I) complex to a metal hydroxide ...

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Номер записи: 80
19-01-2017 дата публикации

Silver Promoted Catalysts for Oxidative Coupling of Methane

Номер: US20170014807A1
Автор: LENGYEL Istvan, Liang Wugeng, LOWREY James, MAMEDOV Aghaddin, PEREZ Hector, SARSANI Vidya Sagar Reddy, WEST David
Принадлежит:

An oxidative coupling of methane (OCM) catalyst composition comprising one or more oxides doped with Ag; wherein one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof; and wherein one or more oxides is not LaOalone. A method of making an OCM catalyst composition comprising calcining one or more oxides and/or oxide precursors to form one or more calcined oxides, wherein the one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof, wherein the one or more oxides is not LaOalone, and wherein the oxide precursors comprise oxides, nitrates, carbonates, hydroxides, or combinations thereof; doping the one or more calcined oxides with Ag to form the OCM catalyst composition; and thermally treating the OCM catalyst composition. 1. An oxidative coupling of methane (OCM) catalyst composition doped with silver (Ag).2. The OCM catalyst composition of claim 1 , wherein the OCM catalyst composition comprises one or more oxides doped with silver (Ag); wherein the one or more oxides comprises a single metal oxide claim 1 , mixtures of single metal oxides claim 1 , a mixed metal oxide claim 1 , mixtures of mixed metal oxides claim 1 , or combinations thereof; and wherein the one or more oxides is not LaOalone.3. The OCM catalyst composition of claim 2 , wherein the single metal oxide comprises one metal cation selected from the group consisting of alkali metal cations claim 2 , alkaline earth metal cations claim 2 , rare earth element cations claim 2 , and cations of elements that can form oxides with redox properties.4. The OCM catalyst composition of claim 2 , wherein the mixed metal oxide comprises two or more different metal cations claim 2 , wherein each metal cation can be independently selected from the group consisting of alkali metal cations claim 2 , alkaline earth ...

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Номер записи: 81
21-01-2016 дата публикации

Complexes useful as active components in supported epoxidation catalysts

Номер: US20160016157A1
Автор: Barbara Kimmich, Daniel F. White, Debra L. JACKSON, Ilya E. Nifant&#39;ev, Pavel V. Ivchenko, Sandor Nagy
Принадлежит: Lyondell Chemical Technology LP

Method of preparing epoxidation catalysts are disclosed, including methods comprising reacting an inorganic siliceous solid with a metal complex of the formulas: wherein the variables are defined herein.

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Номер записи: 82
21-01-2016 дата публикации

Catalyst Composition and Process for Preparing Olefin Oxides

Номер: US20160016158A1
Автор: Farha Omar K., Garibay Sergio J., Hupp Joseph T., Nguyen SonBinh T.
Принадлежит:

A catalyst composition comprising (a) a manganese-containing compound and (b) a carboxylic acid functionalized metal organic framework (MOF) compound; and a process for preparing an olefin oxide compound product including reacting (a) at least one olefin compound with (b) at least one oxidant in the presence of (c) the above catalyst composition. 1. A catalyst composition comprising (a) a manganese-containing compound; and (b) a carboxylic acid functionalized metal organic framework (MOF) compound.2. The catalyst composition of claim 1 , wherein the manganese-containing compound is a (TMTACN)Mn complex.3. The catalyst composition of claim 1 , wherein the carboxylic acid functionalized metal organic framework (MOF) compound is an acid ligand modified Zr(OH)(TBAPy).4. The catalyst composition of claim 1 , wherein the carboxylic acid functionalized metal organic framework (MOF) compound is an acid ligand modified ZrO(OH)(BTC)(HCOO).5. The catalyst composition of claim 1 , wherein the manganese-containing compound is a carboxylic acid-tethered Mn(TACN) MOF complex.6. The catalyst composition of claim 1 , wherein the manganese-containing compound is [Mn(TMTACN)(μ-O)](PF).HO.7. The catalyst composition of claim 4 , wherein the carboxylic acid functionalities are derived from one or more acid anhydrides.8. The catalyst composition of claim 7 , wherein the acid anhydride is a compound selected from the group consisting essentially of succinic anhydride; maleic anhydride claim 7 , and 2 claim 7 ,3-dichloromaleic anhydride; and mixtures thereof.9. The catalyst composition of claim 4 , wherein the carboxylic acid functionalities are derived from one or more carboxylic acids.10. The catalyst composition of claim 10 , wherein the carboxylic acid is a compound selected from the group consisting essentially of succinic acid; maleic acid claim 10 , and phosphonobenzoic acid; and mixtures thereof.11. A process for preparing an olefin oxide compound product comprising reacting:(A) an ...

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Номер записи: 83
21-01-2016 дата публикации

METHOD FOR THE PRODUCTION OF ETHYLENE OXIDE

Номер: US20160016924A1
Автор: Frank Ernest R., McAdon Mark H., Zhang Liping
Принадлежит:

A method for the production of ethylene oxide wherein the partial pressure of water vapor at the inlet of the reactor is at least about 8 kPa using a high purity carrier comprising alpha-alumina, a promoting amount of at least one Group IA metal, and a promoting amount of rhenium.

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Номер записи: 84
17-01-2019 дата публикации

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

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

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

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Номер записи: 85
15-01-2015 дата публикации

Optimization of Zero-PGM Washcoat and Overcoat Loadings on Metallic Substrate

Номер: US20150018203A1
Автор: Kitazumi Sen, Nazarpoor Zahra, Ngo Johnny T.
Принадлежит: CDTI

The present disclosure refers to a plurality of process employed for optimization of Zero-PGM washcoat and overcoat loadings on metallic substrates. According to an embodiment a substantial increase in conversion of HC and CO may be achieved by optimizing the total washcoat and overcoat loadings of the catalyst. According to another embodiment, the present disclosure may provide solutions to determine the optimum total washcoat and overcoat loadings for minimizing washcoat adhesion loss. As a result, may increase the conversion of HC and CO from discharge of exhaust gases from internal combustion engines, optimizing performance of Zero-PGM catalyst systems. 1. A method for optimizing a catalytic system , comprising: a substrate;', 'a washcoat suitable for deposition on the substrate, comprising at least one first oxide solid comprising alumina and at least one first zero platinum group catalyst comprising silver; and', 'an overcoat suitable for deposition on the substrate, comprising at least one second oxide solid selected from the group consisting of a carrier material oxide, at least one second zero platinum group catalyst comprising one selected from the group consisting of copper oxide, ceria, and combinations thereof, and a mixture thereof;, 'providing a catalyst system, comprisingadjusting an amount of loading of the washcoat and the overcoat in accordance with washcoat adhesion loss.2. The method according to claim 1 , wherein the silver is present at about 5.5 g/L.3. The method according to claim 1 , wherein the copper is present at about 6.5 g/L.4. The method according to claim 1 , wherein the amount of washcoat loading is about 80 g/L and the amount of overcoat loading is about 60 g/L.5. The method according to claim 4 , wherein the washcoat adhesion loss is less than 4.0%.6. The method according to claim 1 , wherein the amount of washcoat loading is about 100 g/L and the amount of overcoat loading is about 800 g/L.7. The method according to claim 6 , ...

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Номер записи: 86
18-01-2018 дата публикации

EPOXIDATION PROCESS

Номер: US20180016248A1
Автор: Padia Ashok S.
Принадлежит: Scientific Design Company, Inc.

A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration. 1. A method for producing ethylene oxide comprising:a) providing one or more feed components, wherein the one or more feed components contain at least ethylene;b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.2. The method of claim 1 , wherein the ethylene is obtained by dehydrating ethanol.3. The method of claim 1 , wherein the ethylene is obtained from petroleum sources.4. The method of claim 1 , wherein the ethylene oxide catalyst bed comprises from about 10 wt % to about 90 wt % of the upstream ethylene oxide catalyst and about 10 wt % to about 90 wt % of the downstream epoxidation catalyst.5. The method of claim 1 , wherein the first cesium concentration is from about 200 ppm to about 1000 ppm and the second cesium concentration is from about 100 ppm to about 700 ppm.6. The method according to claim 1 , wherein the one or more feed components further comprises oxygen and a ballast gas.7. A system for producing ethylene oxide comprising:(a) a source of ethylene;(b) an ethylene oxide reactor containing a plurality of reactor tubes; and(c) ...

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Номер записи: 87
15-01-2015 дата публикации

METHOD FOR PRODUCING EPOXY COMPOUND AND CATALYST COMPOSITION FOR EPOXIDATION REACTION

Номер: US20150018515A1
Автор: Hosokawa Akemi, KUSAKA Haruhiko
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

A method of producing an epoxy compound, which comprises reacting hydrogen peroxide with a compound having a carbon-carbon double bond, in the presence of at least one of a tungsten compound and a molybdenum compound; and an onium salt comprising 20 or more carbon atoms and one or more of substituents convertible to a functional group containing an active hydrogen or a salt thereof. 1. A method for producing an epoxy compound , comprising reacting hydrogen peroxide with a compound having a carbon-carbon double bond in the presence of at least one of a tungsten compound and a molybdenum compound; and an onium salt having 20 or more carbon atoms and containing one or more substituents convertible to an active hydrogen-containing functional group or a salt thereof.2. The method for producing an epoxy compound as claimed in claim 1 , wherein said active hydrogen-containing functional group is a hydroxyl group claim 1 , a carboxyl group claim 1 , an amino group claim 1 , a mercapto group claim 1 , a sulfonic acid group or a phosphoric acid group.3. The method for producing an epoxy compound as claimed in claim 1 , wherein at least one of phosphoric acids and phosphonic acids (excluding an onium salt) is further allowed to coexist in said reaction.4. The method for producing an epoxy compound as claimed in claim 1 , wherein said reaction is a two-phase reaction of an aqueous phase and an organic phase and the pH of said aqueous phase is from 2 to 6.5. The method for producing an epoxy compound as claimed in claim 1 , wherein said onium salt is an ammonium salt claim 1 , a pyridinium salt claim 1 , an imidazolinium salt or a phosphonium salt.6. The method for producing an epoxy compound as claimed in claim 1 , wherein said substituent convertible to an active hydrogen-containing functional group or a salt thereof is an alkoxycarbonyl group or an acyloxy group.8. The method for producing an epoxy compound as claimed in claim 1 , wherein in said production method claim 1 , ...

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Номер записи: 88
21-01-2021 дата публикации

PROCESS FOR THE PREPARATION OF GLYCIDOL

Номер: US20210017142A1
Автор: Atkins Martin, Coleman Fergal, Hardiman Sean
Принадлежит:

This invention relates to a process for the preparation of glycidol from the thermal decarboxylation of glycerol carbonate. In one aspect, the present invention provides a process for the preparation of glycidol by thermal decarboxylation of glycerol carbonate, said process comprising the steps of: 1. A process for the preparation of glycidol by thermal decarboxylation of glycerol carbonate , said process comprising the steps of:a) contacting liquid glycerol carbonate with a decarboxylation promotor, having a boiling point of at least 160° C. at atmospheric pressure and consisting essentially of an aliphatic mono-ol, an aliphatic polyol, or mixtures thereof, to form a liquid phase mixture;b) applying heat to the liquid phase mixture formed in step a) to induce thermal decarboxylation of the glycerol carbonate; andc) separating glycidol formed in step b) from the liquid phase mixture by evaporation of glycidol; andwherein the process does not comprise the use of a decarboxylation catalyst.2. A process according to claim 1 , wherein the mono-ol and/or polyol is acyclic.3. A process according to or claim 1 , wherein the mono-ol and/or polyol comprise one or more ether groups.4. A process according to any one of the preceding claims claim 1 , wherein the mono-ol and/or polyol has a plurality of ether groups and a primary hydroxyl group.5. A process according to any one of the preceding claims claim 1 , wherein the polyol is selected from polyethylene glycol claim 1 , polypropylene glycol claim 1 , and oligomers of ethylene glycol claim 1 , propylene glycol and glycerol.6. A process according to claim 5 , wherein the polyol is selected from oligomers of ethylene glycol claim 5 , propylene glycol and glycerol claim 5 , each having from 2 to 8 repeat monomer units claim 5 , preferably from 2 to 5 repeat monomer units.7. A process according to claim 6 , wherein the polyol is an oligomer selected from tripropylene glycol claim 6 , tetrapropylene glycol claim 6 , triethylene ...

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Номер записи: 89
26-01-2017 дата публикации

POST TREATED SILVER CATALYSTS FOR EPOXIDATION

Номер: US20170021337A1
Автор: Kimmich Barbara, NAGY Sandor
Принадлежит: Lyondell Chemical Technolgy, L.P.

The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin. 1. A catalyst comprising:A) from about 10 wt % to about 70 wt % of silver;B) from about 0.0 wt % to about 5.0 wt % of a promoter selected from the group consisting of rhenium, tungsten, zinc, nickel, gold, copper, scandium, ytterbium, sodium, potassium, lithium, rubidium, cesium, and molybdenum;C) from about 30 wt % to about 90 wt % of a solid component selected from the group consisting of calcium titanate, magnesium titanate, barium titanate, strontium titanate, calcium carbonate, magnesium carbonate, barium carbonate, and strontium carbonate; andD) from about 0.1 wt % to about 6.5 wt % of a salt mixture comprising a first salt and a second salt, wherein the first salt is a Group 1 salt and the second salt is selected from gallium, silver, gold, calcium, barium, strontium, and magnesium salt, and wherein the salt mixture coats the silver, the sold support, or the promoter.2. The catalyst of claim 1 , wherein the promoter is selected from molybdenum claim 1 , zinc claim 1 , and rhenium.3. The catalyst of claim 1 , wherein the solid component is calcium carbonate.4. The catalyst of claim 1 , wherein the first salt comprises from about 0.25 wt % to about 2.5 wt % of the catalyst.5. The catalyst of claim 1 , wherein the second salt comprises from about 0.1 wt % to about 2.0 wt % of the catalyst.6. The catalyst of claim 1 , wherein the silver comprises from about 30 wt % to about 60 wt % of the catalyst.7. The catalyst of claim 1 , wherein the solid component ...

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Номер записи: 90
25-01-2018 дата публикации

POROUS BODIES WITH ENHANCED PORE ARCHITECTURE

Номер: US20180021755A1
Автор: Suchanek Wojciech L.
Принадлежит: Scientific Design Company, Inc.

A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m/g to 3.0 m/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier. 1. A precursor mixture for producing a porous body , the precursor mixture comprising:(i) at least one milled alpha alumina powder having a particle size of 0.1 microns to 6 microns,(ii) a non-silicate binder, and(iii) at least one principle burnout material having a particle size of 1 micron to 10 microns.2. The precursor mixture of claim 1 , wherein the least one milled alpha alumina powder claim 1 , the non-silicate binder claim 1 , and the at least one principle burnout material are in a homogeneous mixture.3. The precursor mixture of claim 1 , wherein the at least one principle burnout material is a granulated polyolefin.4. The precursor mixture of claim 3 , wherein the granulated polyolefin is one of polyethylene and polypropylene.5. The precursor mixture of claim 1 , further comprising unmilled alpha alumina powder.6. The precursor mixture of claim 5 , wherein the unmilled alpha alumina powder has an average particle size from 10 microns to 100 microns.7. The precursor mixture of claim 5 , wherein a weight ratio of the milled alpha alumina powder to the unmilled alpha alumina powder is from about 0.25:1 to 5:1.8. The precursor mixture of claim 5 , further comprising an additional unmilled alpha alumina powder having a particle size greater the particle size of the unmilled ...

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Номер записи: 91
17-04-2014 дата публикации

METHODS FOR PRODUCING EPOXIDATION CATALYSTS AND EPOXIDATION METHODS UTILIZING THEM

Номер: US20140107356A1
Автор: Basrur Arun G., Gopal Srikant, Murthy Lakshmi N. Vutukuru
Принадлежит: DOW TECHNOLOGY INVESTMENTS, LLC

A method for producing epoxidation catalysts is provided. The catalyst comprises a support, a catalytic species, maganese and at least one alkali metal and/or promoter. The catalytic species may be silver. The catalyst is prepared by a method wherein at least a portion of the manganese is impregnated in a step separate from the at least one alkali metal and/or promoter. Advantageously, catalysts produced by the present method may exhibit greater efficiencies than catalysts produced by conventional methods. A method for the epoxidation of alkylenes using the catalysts so produced is provided as is a method for using the alkylene oxides for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers, or alka-nolamines. 1. A method for making an epoxidation catalyst comprising a support , at least one catalytic species , manganese and at least one alkali metal and/or promoter , comprising:Impregnating at least a portion of the manganese in an impregnation step separate from the at least one alkali metal and/or promoter.2. The method of claim 1 , wherein the manganese is impregnated with the at least one catalytic species.3. The method of claim 1 , wherein the at least one alkali metal and/or promoter comprises sodium claim 1 , cesium claim 1 , lithium claim 1 , sulfate or combinations of these.4. The method of claim 1 , wherein the at least one alkali metal and/or promoter comprises sodium and is impregnated in a step separate from the manganese.5. The method of claim 1 , wherein the manganese comprises Mn-EDTA complex.6. The method of claim 1 , wherein the at least one alkali metal and/or promoter comprises rhenium.7. The method of claim 1 , wherein the catalytic species comprises silver.8. An epoxidation catalyst prepared according to the method of .9. A method for the epoxidation of one or more alkylenes comprising contacting an oxygen source and an alkylene in the presence of an epoxidation catalyst prepared according to the method of .10. The method of claim 8 , ...

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Номер записи: 92
25-01-2018 дата публикации

METHOD FOR FABRICATING TITANIUM-CONTAINING SILICON OXIDE MATERIAL AND APPLICATION OF THE SAME

Номер: US20180022720A1
Автор: Hsu Yu-Chuan, TSAI Hsi-Chin, Tseng Chia-Yao, Wu Po-Sung
Принадлежит:

A method for fabricating a titanium-containing silicon oxide material and an application of the same are disclosed. The method needn't use a template but directly use an amorphous silicon dioxide and a titanium source as the reactants. The reactants are mixed with a solvent and react in the solvent. The suspension generated by the reaction is processed by solid-liquid separation, flushing and drying to obtain a titanium-containing silicon oxide material. The method features a simplified fabrication process and a low fabrication cost. The titanium-containing silicon oxide material fabricated by the method has a superior catalytic activity, able to catalyze an epoxidation reaction of an olefin-group compound to generate an epoxide. 1. A method for fabricating a titanium-containing silicon oxide material , comprising steps:preparing a mixture liquid containing an amorphous silicon dioxide, a titanium source and a solvent;enabling a reaction of said mixture liquid, and undertaking a solid-liquid separation process; and {'br': None, 'i': x', '−x, 'sub': 2', '2, 'TiO(1)SiO\u2003\u2003(I)'}, 'drying a solid-state material obtained in said solid-liquid separation process to obtain a titanium-containing silicon oxide material, wherein in an anhydrous state, said titanium-containing silicon oxide material is expressed by Formula (I)wherein x is a number within 0.002-0.2.2. The method according to claim 1 , wherein said amorphous silicon dioxide is smoked silica claim 1 , fumed silica claim 1 , silica gel claim 1 , or silica sol; said titanium source is a titanate or an inorganic titanium source; said solvent is an alcohol-group compound.3. The method according to claim 2 , wherein said titanate is selected from a group consisting of tetramethyl titanate claim 2 , tetraethyl titanate claim 2 , tetrapropyl orthotitanate claim 2 , tetra isopropyl titanate claim 2 , tetrabutyl orthotitanate claim 2 , tetra sec-butyl titanate claim 2 , tetrabutyl isotitanate claim 2 , tetra tert- ...

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Номер записи: 93
24-01-2019 дата публикации

Post impregnation heat treatment for silver-based epoxidation catalysts

Номер: US20190022628A1
Автор: Andrew Mcfarland, Serguei Pak
Принадлежит: Scientific Design Co Inc

The present disclosure is directed to the preparation of silver-based HSCs. During preparation of the catalyst a selected carrier is co-impregnated with a solution containing a catalytically effective amount of silver and a promoting amount of rhenium and other promoters. After co-impregnation, the carrier is subjected to a separate heat treatment prior to calcination. Such heat treatment is conducted for between about 1 minute and about 120 minutes at temperatures between about 40° C. and about 300° C. Catalysts prepared by the present methodology evidence improved selectivity, activity and/or stability resulting in an increase in the useful life of the catalyst.

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Номер записи: 94
24-01-2019 дата публикации

METHODS FOR DIRECT EPOXIDATION OF PROPYLENE WITH OXYGEN

Номер: US20190023672A1
Автор: Nijhuis Tjeerd Alexander, Odeh Ihab N.
Принадлежит:

Methods to produce propylene oxide are described. One method can include providing a propene feedstream, an oxygen feed stream and, optionally, a hydrogen feed stream to a reaction zone, and maintaining, in a reaction zone during the reaction, at least 50 vol. % propene and 1 to 15 vol. % Oby gradually introducing a feed stream that includes the Oover the length of the catalytic bed or the length of the reaction zone and/or a feed stream that includes the Hover the length of the catalytic bed or the length of the reaction zone. 1. A method for direct epoxidation of propene , the method comprising reacting , in a reaction zone of a reactor , propene , oxygen gas (O) , and hydrogen gas (H) in the presence of a catalytic bed that includes a propene epoxidation catalyst to produce a product stream comprising propylene oxide , wherein:{'sub': 2', '2', '2', '2, 'at least 50 vol. % propene, 1 to 15 vol. % O, and 1 to 15 vol. % His maintained in the reaction zone during the reaction by (i) introducing the propene through a first reactant feed stream and (ii) gradually introducing the Oor the H, or both, over the length of the catalytic bed or the length of the reaction zone through a separate reactant feed stream(s), and'}a temperature of 150° C. to 300° C. and a pressure of 3 bar to 20 bar is maintained in the reaction zone during the reaction.2. The method of claim 1 , wherein 82 vol. % to 95 vol. % of propene claim 1 , 3 vol. % to 8 vol. % O claim 1 , and 2 vol. % to 10 vol. % His maintained in the reaction zone during the reaction.3. The method of claim 2 , wherein 88 vol. % to 92 vol. % of propene claim 2 , 4 vol. % to 6 vol. % O claim 2 , and 4 vol. % to 6 vol. % His maintained in the reaction zone during the reaction.4. The method of claim 1 , wherein the vol. % of propene and Oor H claim 1 , or both claim 1 , in the reaction zone has an explosive regime claim 1 , and wherein the gradual introduction of Oor H claim 1 , or both claim 1 , in the reaction zone is such ...

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Номер записи: 95
24-01-2019 дата публикации

PROCESS FOR THE EPOXIDATION OF AN OLEFIN

Номер: US20190023673A1
Автор: DAUTH Nico, PASCALY Matthias, Schmidt Franz
Принадлежит:

In a process for the epoxidation of an olefin with hydrogen peroxide in the presence of a solvent, where a mixture comprising olefin, an aqueous hydrogen peroxide solution and a solvent is continuously passed through a fixed bed of an epoxidation catalyst comprising a titanium zeolite, addition of a chelating agent to the aqueous hydrogen peroxide solution before mixing it with solvent reduces or prevents formation of deposits on the catalyst and blocking of orifices of a liquid distributor. 114-. (canceled)15. A process for the epoxidation of an olefin with hydrogen peroxide in the presence of a solvent , wherein the solvent is selected from the group consisting of methanol , ethanol , tert-butanol , ethylene glycol , 1 ,2-propanediol , 1 ,3-propanediol , tetrahydrofuran , dioxane , ethylene glycol monomethyl ether , ethylene glycol monoethyl ether , ethylene glycol monobutyl ether , propylene glycol monomethyl ethers , acetone , 2-butanone , acetonitrile and proprionitrile , hydrogen peroxide is used as an aqueous hydrogen peroxide solution , a chelating agent is added to the aqueous hydrogen peroxide solution before it is mixed with solvent , and a mixture comprising olefin , solvent , and hydrogen peroxide with added chelating agent is continuously passed through a fixed bed of an epoxidation catalyst comprising a titanium zeolite.16. The process of claim 15 , wherein the aqueous hydrogen peroxide solution comprises phosphoric acid or an alkali metal or ammonium salt of phosphoric acid.17. The process of claim 15 , wherein the aqueous hydrogen peroxide solution is mixed with at least 50% of the solvent used for reacting the olefin with hydrogen peroxide.18. The process of claim 15 , wherein the chelating agent is a polyphosphonic acid or an alkali metal or ammonium salt thereof.19. The process of claim 15 , wherein the chelating agent is added in an amount of from 10to 10mol chelating agent per mol of hydrogen peroxide.20. The process of claim 15 , wherein the ...

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Номер записи: 96
24-04-2014 дата публикации

BASIC CATALYST SUPPORT BODY HAVING A LOW SURFACE AREA

Номер: US20140113806A1
Автор: BAUER PETER, HAGEMEYER Alfred, MESTL Gerhard, Pritzl Andreas, SCHECK Peter
Принадлежит: Clariant Produkte (Deutschland) GmbH

A catalyst support body containing an SiO-containing material and a metal selected from the group consisting of alkali metals, alkaline earth metals, rare earth metals and mixtures thereof, wherein the total metal content lies in the range of from 0.5 to 10 wt.-%, relative to the total weight of the catalyst support. Also, a catalyst that comprises a catalyst support body according to the invention and a catalytically active metal, in particular palladium and/or gold. Also, a method for producing a catalyst support, wherein an SiO-containing material is treated with a metal-containing compound, dried and then calcined. Also, a method for producing a catalyst, in which a solution having a precursor compound of a catalytically active metal is applied to a catalyst support body. 1. A catalyst support body containing an SiO-containing material and a metal selected from the group consisting of alkali metals , alkaline earth metals , rare earth metals and mixtures thereof , wherein the total metal content lies in the range of from 0.5 to 10 wt.-% , relative to the total weight of the catalyst support body , and wherein the BET surface area of the catalyst support body lies in the range of from 50 to 150 m/g.2. The catalyst support body according to claim 1 , wherein the catalyst support body is present in the form of spheres or rings.3. The catalyst support body according to claim 1 , having an average pore radius in the range of from 12 to 30 nm.4. The catalyst support body according to claim 1 , having a total pore volume in the range of from 280 to 550 mm/g.5. The catalyst support body according to claim 1 , having a bulk density in the range of from 0.8 to 1.2 g/cm.6. The catalyst support body according to claim 1 , having BET surface area in the range of from 50 to 140 m/g.7. The catalyst support body according to claim 1 , having a basicity in the range of from 100 to 800 μval/g.8. The catalyst support body according to claim 1 , wherein the metal is Li claim 1 , Na ...

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Номер записи: 97
24-04-2014 дата публикации

PRODUCTION OF OXIDIZED OLEFINS

Номер: US20140114083A1
Автор: Newman Kent E., Osborne Bernie, Szul John
Принадлежит: Dow Global Technologies LLC

The present disclosure includes a system and method for the production of oxidized olefins. Two or more reactors include a number of reaction tubes each having a first surface defining a first side and a second surface defining a second of each of the tubes side are provided. A catalyst for catalytic oxidation of olefins can be located on the first side of the number of reaction tubes is included. A common supply line supplies inlets to each reactor that provide a mixture comprising olefins and oxygen to the catalyst. Product outlet streams of each reactor receive at least the oxidized olefin product and are joined to a single product stream. Coolant fluid passes through the reactors to remove heat from the number of reaction tubes and flows into a single coolant drum connected to the two or more reactors. The single coolant drum receives the coolant fluid from a number of coolant fluid outlet streams of each of the reactors. The single coolant drum supplies the coolant fluid at a common temperature to a number of coolant fluid inlet streams of each reactor. 1. A system for producing oxidized olefins , comprising:two or more reactors, each of the two or more reactors including a number of reaction tubes each including a first surface defining a first side and a second surface opposite the first surface that defines a second side of each of the number of reaction tubes;a catalyst for catalytic oxidation of olefins on the first side of the number of reaction tubes;an inlet to each of the two or more reactors that supplies a mixture comprising olefins and oxygen to the catalyst, where a common supply line supplies the mixture to each inlet of the two or more reactors;a product outlet from each of the two or more reactors that receives a product stream comprising the oxidized olefins, where each product outlet joins to a single common product stream comprising the oxidized olefins; andonly one coolant drum connected to the two or more reactors, where coolant fluid ...

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Номер записи: 98
01-02-2018 дата публикации

METHODS TO PRODUCE MOLECULAR SIEVES WITH LTA TOPOLOGY AND COMPOSITIONS DERIVED THEREFROM

Номер: US20180029021A1
Автор: BOAL BEN W., Davis Mark E., SCHMIDT JOEL E.
Принадлежит:

The present disclosure is directed to processing for preparing crystalline pure-silica and heteroatom-substituted LTA frameworks in fluoride media using a simple organic structure-directing agent (OSDA), having a structure of Formula (I): 1. A crystalline microporous silicate of LTA topology that is substantially free of an Organic Structure Directing Agent (OSDA).2. The crystalline microporous silicate of claim 1 , that is an aluminosilicate having a molar ratio of Si:Al in a range of from about 5 to about 50.3. The crystalline microporous aluminosilicate of claim 2 , having a molar ratio of Si:Al in a range of from about 12 to about 42.4. The crystalline microporous aluminosilicate of claim 2 , comprising pores containing Li claim 2 , Na claim 2 , K claim 2 , Rb claim 2 , Cs claim 2 , Be claim 2 , Mg claim 2 , Ca claim 2 , Sr claim 2 , Be claim 2 , Al claim 2 , Ga claim 2 , In claim 2 , Zn claim 2 , Ag claim 2 , Cd claim 2 , Ru claim 2 , Rh claim 2 , Pd claim 2 , Pt claim 2 , Au claim 2 , Hg claim 2 , La claim 2 , Ce claim 2 , Pr claim 2 , Nd claim 2 , Pm claim 2 , Sm claim 2 , Eu claim 2 , or RNHcations claim 2 , where R is alkyl claim 2 , and n=0-4.5. The crystalline microporous aluminosilicate of claim 2 , comprising pores containing NaCl or KCl.6. The crystalline microporous aluminosilicate of claim 2 , comprising pores containing scandium claim 2 , yttrium claim 2 , titanium claim 2 , zirconium claim 2 , vanadium claim 2 , manganese claim 2 , chromium claim 2 , molybdenum claim 2 , tungsten claim 2 , iron claim 2 , ruthenium claim 2 , osmium claim 2 , cobalt claim 2 , rhodium claim 2 , iridium claim 2 , nickel claim 2 , palladium claim 2 , platinum claim 2 , copper claim 2 , silver claim 2 , gold claim 2 , or a mixture thereof claim 2 , each as a metal claim 2 , oxide claim 2 , or salt.7. The crystalline microporous aluminosilicate of claim 2 , comprising pores containing copper as a metal claim 2 , oxide claim 2 , or salt.8. The crystalline microporous ...

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Номер записи: 99
04-02-2016 дата публикации

PROCESS FOR PREPARING CYCLODODECANONE

Номер: US20160031783A1
Автор: CAMERETTI Luca, DOERING Jens, Haeger Harald, HERWIG Juergen, Meier Ralf, MICOINE Kevin, Roos Martin
Принадлежит: EVONIK DEGUSSA GmbH

Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON. 1. A process for preparing cyclododecanone (CDON) by a reaction route I , said reaction route I comprising:a. epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and 'wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON.', 'b. rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN),'}2. The process according to claim 1 , wherein the rearrangement in step b is effected in the presence of a noble metal catalyst.3. The process according to claim 2 , wherein the catalyst for the rearrangement comprises titanium dioxide claim 2 , zirconium dioxide or both.4. The process according to claim 1 , wherein the CDAN epoxide from step a comprises CDAN which is at least partly removed prior to the rearrangement in step b.5. The process according to claim 4 , wherein the CDAN removed prior to the rearrangement is oxidized to CDON.6. The process according to claim 1 , wherein the CDON-containing mixture comprises cyclododecanol (CDOL) which is dehydrogenated to CDON.7. The process according to claim 6 , wherein the CDOL is separated from the CDON-containing mixture prior to the dehydrogenation and is sent to a reaction route II for preparation of CDON claim 6 , said reaction route II comprisinga. hydrogenation of cyclododecatriene (CDT) to CDAN,b. oxidation of CDAN to give a mixture comprising CDOL and CDON andc. dehydrogenation of CDOL to CDON.8. The process according to claim 1 , wherein the CDAN removed prior to performance of the oxidation claim 1 , is sent to a reaction route II for preparation of CDON claim 1 , comprisinga. hydrogenation of CDT to CDAN,b. oxidation of CDAN to give a mixture ...

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Номер записи: 100