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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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Применить Всего найдено 11610. 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
15-11-2012 дата публикации

Composite compositions

Номер: US20120289624A1
Автор: Bernd Hoevel, Guillaume Metral, Joseph Gan, Michael J. Mullins
Принадлежит: Individual

A curable resin composition for composites and electrical laminates including (I) at least one thermoset resin composition; (II) at least one hardener; and (III) at least one reinforcing material; wherein the composite or electrical laminate has a balance of properties including a combination of (a) a Tg of at least about 150° C.; and (b) a water uptake of less than about 2.5 wt %.

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Номер записи: 4
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: 5
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: 6
28-02-2013 дата публикации

Gas separations with redox-active metal-organic frameworks

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

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

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Номер записи: 7
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: 8
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: 9
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: 10
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: 11
25-04-2013 дата публикации

PRODUCT CONTAINING EPICHLOROHYDRIN, ITS PREPARATION AND ITS USE IN VARIOUS APPLICATIONS

Номер: US20130102755A1
Автор: BALTHASART Dominique, Boulos Noel, GILBEAU Patrick, Krafft Philippe
Принадлежит: SOLVAY SA

Product containing epichlorohydrin and at least one alkyl glycidyl ether in an amount of less than 0.1 g/kg of product. Use of the product containing epichlorohydrin in the manufacture of epoxy resins, of glycidyl ethers, of glycidyl esters, of glycidyl amides, of glycidyl imides, of products that will be used in food and drink applications, of cationization agents, and of flame retardants, of products which will be used as detergent ingredient and of epichlorohydrin oligomers. 1. A method for the manufacture of a product selected from the group consisting of epoxy derivatives , coagulants , wet-strength resins , cationization agents , flame retardants , detergent ingredients , and epichlorohydrin elastomers , comprising subjecting a product comprising epichlorohydrin and at least one alkyl glycidyl ether in a positive amount of less than 0.1 g/kg of product to a reaction in order to obtain said product.2. The method according to claim 1 , wherein the content of epichlorohydrin in said product is higher than or equal to 900 g/kg of product.3. The method according to claim 1 , wherein the alkyl glycidyl ether is methyl glycidyl ether.4. The method according to claim 1 , wherein said product is obtained by dehydrochlorination of a composition comprising dichloropropanol and at least one chloroalkoxypropanol in an amount of less than or equal to 0.1 g/kg of composition.5. The product according to claim 4 , wherein the chloro alkoxy propanol is selected from the group consisting of 2-chloro-3-alkoxy-propane-1-ol claim 4 , 1-chloro-3-alkoxy-propane-2-ol claim 4 , and mixtures thereof.6. The method according to claim 4 , wherein the composition comprising dichloropropanol is obtained by hydrochlorination of a compound containing glycerol and at least one glycerol alkyl ether in an amount of less than or equal to 0.6 g/kg of compound.7. The method according to claim 1 , wherein the product comprising epichlorohydrin is subjected to a reaction with a compound comprising at ...

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Номер записи: 12
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: 13
25-04-2013 дата публикации

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

Номер: US20130102799A1
Автор: Kwon Myoung Suk, Park Seong Han, Song Boo Weon, Song Won Seob, Woo Sung Yul
Принадлежит:

A method of preparing a chlorohydrin composition and a method of preparing epichlorohydrin by using a chlorohydrin composition prepared by using the method are provided. The method of preparing a chlorohydrin composition in which a 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 plurality of reaction steps and a water-rich layer discharged from the water-removal step. 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 plurarity of reaction steps to obtain a chlorohydrin concentrate, andmixing the water-rich layer, and the chlorohydrin concentrate.2. A ...

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Номер записи: 14
25-04-2013 дата публикации

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

Номер: US20130102800A1
Автор: Kwon Myoung Suk, Park Seong Han, Song Boo Weon, Song Won Seob, Woo Sung Yul
Принадлежит:

Disclosed are a method for preparing chlorohydrins composition and a method for preparing epichlorohydrin using chlorohydrins prepared thereby. The disclosed method for preparing chlorohydrins composition reacts polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, comprises 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 the respective order, and additionally comprises a step for reacting the chlorohydrins composition derived from a plurality of reaction mixtures discharged from the plurality of reaction steps with an alkaline chemical, and removing the catalyst included in the chlorohydrins composition in the form of an alkali metal salt. The disclosed method for preparing epichlorohydrin includes a step for contacting the chlorohydrins composition, which was prepared using the method for preparing chlorohydrins composition, with an alkaline chemical. 1. A method for preparing chlorohydrins composition 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 method additionally comprises a step for reacting the chlorohydrins composition derived from a plurality of reaction mixtures discharged from the plurality of reaction steps with an alkaline agent, and removing the catalyst comprised in the chlorohydrins composition in the form of ...

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Номер записи: 15
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: 16
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: 17
09-05-2013 дата публикации

CHLOROHYDRIN PROCESSING EQUIPMENT COMPRISING STAINLESS STEEL

Номер: US20130116452A1
Автор: Goertz Eckhard, Luecke Karsten
Принадлежит: Dow Global Technologies, LLC

The present invention provides a process for the production of chlorohydrins, comprising generating a chlorohydrins processing stream and contacting at least a portion of a surface comprising a austenitic stainless steel with the chlorohydrin processing stream. It has now been surprisingly discovered that certain stainless steels can be utilized to form portions, or the entirety of, one or more pieces of processing equipment utilized in such processes. 1. A process for the production of a chlorohydrin comprisinggenerating a chlorohydrin process stream; andcontacting at least a portion of a surface comprising a austenitic stainless steel comprising from about 0.18 wt % to about 0.52 wt % nitrogen, from about 19.5 wt % to about 24.5 wt % chromium, from about 17.5 wt % to about 22.5 wt % nickel, from about 6.0 wt % to about 7.5 wt % molybdenum, from about 0.01 wt % to about 0.02 wt % carbon, with the remainder being incidental impurities and the balance iron, with the chlorohydrin process stream.2. The process of claim 1 , wherein the chlorohydrin process stream has a pH of greater than about 9.3. The process of claim 1 , wherein the chlorohydrin process stream has a salt concentration of at least about 5 wt %.4. The process of claim 1 , wherein the chlorohydrin process stream has a temperature of at least about 70° C.5. The process of claim 1 , wherein the chlorohydrin process stream has an oxidation potential of up to about 300 mV/Ag-AgCl.6. The process of claim 1 , wherein the chlorohydrin process stream is a waste stream.7. The process of claim 1 , wherein the stainless steel comprises from about 0.18 wt % to about 0.22 wt % nitrogen claim 1 , from about 23.5 wt % to about 24.5 wt % chromium claim 1 , from about 21.5 wt % to about 22.5 wt % nickel claim 1 , from about 6.0 wt % to about 6.5 wt % molybdenum claim 1 , and from about 0.01 wt % to about 0.02 wt % carbon.8. The process of claim 1 , wherein the stainless steel comprises from about 0.48 wt % to about 0.52 ...

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Номер записи: 18
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: 19
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: 20
16-05-2013 дата публикации

Adhesive Compositions for Bonding Composites

Номер: US20130123513A1
Автор: Rammon Richard M., Williamson Bobby Lee
Принадлежит: GEORGIA-PACIFIC CHEMICALS LLC

The present invention relates to a non-thermosetting composition made by reacting epichlorohydrin and a primary amine, to the use of that composition for making thermosetting (curable) adhesives suitable for bonding composites, to a method of preparing composites using the thermosetting (curable) adhesives, and to the related composites bonded with the thermosetting (curable) adhesives. 1. A non-thermosetting, reaction product of (a) epichlorohydrin and (b) an amine selected from the group consisting of ammonia, a primary amine and mixtures thereof, wherein the reaction product is produced by reacting the epichlorohydrin and the amine in a ratio of 0.40 to 0.92 moles of epichlorohydrin per atom equivalent of amine hydrogen and wherein the epi-amine reaction product is produced by reacting in a serial fashion separate portions of the epichlorohydrin and separate portions of the amine at a temperature of not greater than 60° C. This application is a divisional of co-pending U.S. patent application Ser. No. 12/718,391, filed on Mar. 5, 2010, which claims the benefit of U.S. Provisional Application No. 61/158,013 filed Mar. 6, 2009, each of which is hereby incorporated by reference in its entirety.The present invention is directed to a non-thermosetting composition made by reacting epichlorohydrin and an amine, to the use of that composition for making thermosetting (curable) adhesives, particularly adhesives suitable for bonding composites, to a method of preparing composites, particularly wood composites using the thermosetting (curable) adhesives, and to the related composites bonded with the cured thermosetting (curable) adhesives.A variety of composite materials are made by bonding into a unitary product a primary constituent, often a structural or reinforcement component, using a bonding agent or matrix material, such as an adhesive resin. Composites include engineered wood products (wood-adhesive composite products), insulation products and the like.Wood-adhesive ...

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Номер записи: 21
06-06-2013 дата публикации

NUCLEOPHILIC SUBSTITUTION OF CARBON NANOTUBES

Номер: US20130144072A1
Автор: Guan Jingwen, Simard Benoit
Принадлежит: NATIONAL RESEARCH COUNCIL OF CANADA

Compounds are attached to carbon nanotubes (CNT) by a process which comprises: subjecting surface treated CNTs which have been treated to induce negatively charged surface groups thereon, to nucleophilic substitution reaction with a compound carrying a functional group capable of reacting with the negatively charged groups on the CNT surface, whereby the compound chemically bonds to the CNT. The surface CNT treatment may be reduction. The compounds which are bonded to the CNT may be epoxy resins, bonded directly or through a spacer group. Bi-functional CNTs, grafted to both epoxy resins and other polymers such as polystyrene, are also made by this process. 1. A process of chemically attaching compounds to carbon nanotubes (CNTs) which comprises:functionalizing the CNTs to acquire anionic character via a negative charges, andsubjecting the functionalized CNTs to nucleophilic substitution reaction with a compound carrying a functional group which reacts with the negatively charged CNT, whereby the compound chemically bonds to the CNT.2. The process of wherein the functionalization of the CNT is performed by reducing the CNT to produce negatively charged CNT.3. The process of wherein the CNT reduction has been accomplished by negatively charging the CNT by use of radical anions.4. The process of wherein the reduction is conducted with alkali metal naphthalene complex.5. The process of wherein the reduction is conducted with alkali metal benzophenone complex.6. The process of wherein the compound carrying the functional group is an epoxy compound claim 1 , whereby the epoxy group opens to form a C—C covalent bond to the side wall of the CNT.7. The process of wherein the compound carrying the functional group is an alkyl halide claim 1 , an alkylalcohol halide claim 1 , a carboxylic acid halide claim 1 , a halo-carboxylate ester claim 1 , a succinic anhydride claim 1 , or an epihaloanhydride.8. The process of wherein the functionalization of the CNT is performed by ...

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Номер записи: 22
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: 23
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: 24
13-06-2013 дата публикации

Crystalline Peptide Epoxy Ketone Protease Inhibitors and the Synthesis of Amino Acid Keto-Epoxides

Номер: US20130150289A1
Автор: Fuller William Dean, LAIDIG Guy J., Phiasivongsa Pasit, Sehl Louis C.
Принадлежит: Onyx Therapeutics, Inc.

The invention relates to crystalline peptide keto epoxide compounds, methods of their preparation, and related pharmaceutical compositions. This invention also relates to methods for the preparation of amino acid keto-epoxides. Specifically, allylic ketones are stereoselectively converted to the desired keto epoxides. 118.-. (canceled)20. A method of claim 19 , wherein the organic solvent is selected from diethyl ether claim 19 , THF claim 19 , acetonitrile claim 19 , and MTBE claim 19 , or any combination thereof.21. A method of claim 20 , wherein the organic solvent is a mixture of THF and acetonitrile.22. A method of claim 19 , wherein bringing the solution to supersaturation comprises slow addition of an anti-solvent claim 19 , allowing the solution to cool claim 19 , reducing the volume of the solution claim 19 , or any combination thereof.23. A method of claim 22 , wherein bringing the solution to supersaturation comprises cooling the solution to ambient temperature or lower.24. A method of claim 19 , further comprising washing the crystals.25. A method of claim 24 , wherein the washing comprises washing with a liquid selected from diethyl ether claim 24 , THF claim 24 , acetonitrile claim 24 , and MTBE claim 24 , or any combination thereof.26. A method of claim 25 , wherein washing comprises washing with acetonitrile.27. A method of claim 19 , wherein isolating the crystals comprises filtering the crystals.28. A method of claim 19 , further comprising drying the crystals under reduced pressure.30. A crystalline salt of claim 29 , having a DSC thermogram substantially as shown in .31. A crystalline salt of claim 29 , having a melting point of about 180 to about 190° C.32. A crystalline salt of claim 31 , having a melting point of about 184 to about 188° C.33. A crystalline salt of claim 29 , having an XRPD pattern substantially as shown in .34. A crystalline salt of claim 29 , having 2θ values 4.40; 7.22; 9.12; 12.36; 13.35; 14.34; 15.54; 16.14; 16.54; 17.00; ...

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Номер записи: 25
04-07-2013 дата публикации

Process for superabsorbent polymer and crosslinker composition

Номер: US20130172180A1
Автор: Christoph Loick, Frank Schubert, Matthias Naumann, Stanley A. McIntosh
Принадлежит: Evonik Stockhausen LLC

The present invention further relates to a process to make a superabsorbent polymer comprising the steps of a) preparing a neutralized monomer solution comprising a polymerizable monomer selected from unsaturated acid groups-containing monomers, ethylenically unsaturated carboxylic acid anhydride, salts, or derivatives thereof and a caustic agent selection from an alkali agent, wherein the polymerizable monomer is neutralized to from about 50 mol % to about 85 mol %; b) forming a crosslinker monomer mixture by adding an internal crosslinker composition to the neutralized monomer solution wherein the internal crosslinking composition is the reaction product of a stoichiometric excess of amine with a glycidyl compound, wherein the internal crosslinker composition has a residual amount of glycidyl compounds of less than about 500 ppm based on the mass of the internal crosslinker composition; and c) polymerizing the crosslinker monomer mixture to make a superabsorbent polymer.

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Номер записи: 26
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: 27
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: 28
08-08-2013 дата публикации

Flexible dry sprinklers

Номер: US20130199803A1
Автор: Thomas Multer
Принадлежит: Reliable Automatic Sprinkler Co Inc

A dry sprinkler is provided having a flexible tube section having openings at opposite ends of the flexible tube section. The sprinkler includes a supply line connection at one end of the tube section, the supply line connection having an opening to receive fluid from the supply line. The sprinkler has a first seal sealed with the supply line connection to prevent fluid from the supply from entering the tube section. A sprinkler head is coupled to the tube section at another end of the tube section opposite the supply line connection, the sprinkler head having a deflector, a second seal sealing an output orifice of the sprinkler head, and a thermally responsive element arranged to maintain the second seal sealed. A fluid is contained in the tube between the first seal and the second seal, wherein the fluid is not susceptible to freezing. The thermally responsive element is constructed to release the second seal in response to an elevated temperature condition, to permit the release of the fluid in the tube and release the first seal to move toward the sprinkler head.

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Номер записи: 29
15-08-2013 дата публикации

Hydrocarbon/oxygen industrial gas mixer with water mist

Номер: US20130208559A1
Автор: Charles W. Lipp, Christopher P. Christenson, Harvey E. Andresen, John R. Mayer, Laurence G. Britton, Michael J. Rangitsch, Michael L. Hutchison, Thomas J. Kling, Victor R. Fey
Принадлежит: DOW TECHNOLOGY INVESTMENTS LLC

A hydrocarbon-containing gas is mixed with an oxygen-containing gas in a gas mixer in the presence of a water mist. The water mist surrounds and contacts entrained particles in either the oxygen-containing gas stream or the hydrocarbon-containing gas stream. The water acts to suppress and prevent ignition of the hydrocarbon gas in the mixer by serving as a sink for heat created by energetic collisions between such particles and structures within the gas mixer. The water mist also acts to quench ignition caused by such collisions. The water mist can be introduced into the gas mixer in a number of different configurations, including via nozzles injecting a mist into a hydrocarbon gas manifold or an oxygen gas manifold, nozzles placed within the gas mixer adjacent to ends of the oxygen supply pipes, and nozzles placed coaxially within the oxygen supply pipes in the gas mixer.

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Номер записи: 30
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: 31
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: 32
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: 33
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: 34
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: 35
12-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130237713A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst to retrieve an olefinic product stream comprising ethylene and/or propylene, and a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins. The C4+ hydrocarbon fraction is subjected to an etherification process with wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether and an etherification product stream is retrieved and separated into an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream. Part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons while another part of the iso-olefin-depleted C4+ hydrocarbon stream is recycled. The tert-alkyl ether in the ether-enriched stream is converted to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst. 1. A process for preparing ethylene and/or propylene , comprising the steps of ethylene and/or propylene, and', 'a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins;, 'a) contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprisingb) subjecting at least part of the C4+ hydrocarbon fraction to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream;d) withdrawing part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the ...

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Номер записи: 36
12-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED C4 OLEFINIC PRODUCT

Номер: US20130237714A1
Автор: SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product , comprising the steps of:a) providing a C4 hydrocarbon stream, comprising normal olefins and iso-olefins;b) subjecting the C4 hydrocarbon stream to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted C4 olefinic product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the second olefinic product further comprises C4 olefins and wherein the process comprises the further step of:e) contacting at least part of the C4 olefins in the second olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type molecular sieve.5. A process according to claim 3 , wherein the molecular sieve-comprising catalyst comprises at least ...

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Номер записи: 37
12-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130237715A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of: 1. A process for preparing ethylene and/or propylene , comprising the steps of:a) providing an oxygenate-comprising feedstock;b) contacting the oxygenate-comprising feedstock with a molecular sieve-comprising catalyst at a temperature in the range of from 450 to 700° C. and converting at least part of the oxygenate into an olefinic product comprising ethylene and/or propylene; andc) retrieving the olefinic product,wherein the oxygenate-comprising feedstock comprises in the range of from 1 to 97 wt % of at least one tert-alkyl ether selected from the group MTBE, ETBE, TAME and TAEE, based on the weight of the oxygenates in the oxygenate-comprising feedstock, and further comprises methanol and/or DME.2. A process according to claim 1 , wherein the oxygenate-comprising feedstock comprises at least one tert-alkyl ether selected from the group MTBE and TAME.3. A process according to claim 1 , wherein the oxygenate-comprising feedstock further comprises methanol.4. A process according to claim 1 , wherein the oxygenate-comprising feedstock comprises in the range of from 1 to 10 wt % of tert-alkyl ether claim 1 , based on the oxygenates in the oxygenate-comprising feedstock.5. A process according to claim 1 , wherein the oxygenate-comprising feedstock comprises in the range of from 60 to 95 wt % of tert-alkyl ether claim 1 , based on the oxygenates in the oxygenate-comprising feedstock.6. A process according to claim 1 , wherein the oxygenate-comprising feedstock further comprises C4+ olefins.7. A process according to claim 1 , further comprising recycling at least part of the olefinic product claim 1 , preferably at least part of a C4+ hydrocarbon fraction of the olefinic product claim 1 , back to step (b) as part of or together with the oxygenate-comprising feedstock.8. A process according to claim 1 , comprising a further step:d) contacting at least part of the ...

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Номер записи: 38
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130245221A1
Автор: CHEWTER Leslie Andrew, SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process preparing ethylene and propylene, comprising the step of: 1. A process for preparing ethylene and propylene , comprising the step of:a) contacting a feed comprising a tert alkyl ether obtained from an etherification reaction between ethanol and a tertiary iso-olefin with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. to obtain a olefinic product comprising ethylene and propylene.2. A process according to claim 1 , wherein the olefinic product comprises ethylene and propylene in a weight ratio of ethylene to propylene in the range of from 0.5 to 1.5.3. A process according to claim 1 , wherein the feed comprises ethyl tert-butyl ether4. A process according to claim 1 , wherein the zeolite-comprising catalyst comprises ZSM-5.5. A process according to claim 4 , wherein the ZSM-5 has a silica to alumina ratio of in the range of from 50 to 90.6. A process according to claim 1 , wherein the catalyst further comprises at least one zeolite selected from TON-type and MTT-type zeolites.7. A process according to claim 1 , wherein the olefinic product further comprises C4+ olefins and at least part of the C4+ olefins are provided to step (a) as part of the feed.8. A process according to claim 7 , wherein the at least part of the C4+ olefins are provided to step (a) by subjecting at least part of the C4+ olefins to an etherification process with ethanol to obtain a tert-alkyl ether claim 7 , preferably including ethyl tert-butyl ether claim 7 , and providing at a least part of the tert-alkyl ether to step (a).9. A process according to claim 7 , wherein iso-olefin-depleted C4+ fraction of the olefinic product is exported from the process and used for other purposes.10. A process according to claim 8 , wherein iso-olefin-depleted C4+ fraction of the olefinic product is exported from the process and used for other purposes.11. A process according to claim 1 , wherein the olefinic product further comprises ...

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Номер записи: 39
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130245290A1
Автор: VAN WESTRENEN Jeroen, VIJAYAKUMARI Sivakumar Sadasivan
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and propylene, comprising the step of: 1. A process for preparing ethylene and propylene , comprising the step of:a) contacting a feed comprising methanol, ethanol and C4+ olefins with a catalyst, comprising ZSM-5 having a silica to alumina ratio in the range of from 40 to 100, at a temperature in the range of from 350 to 1000° C. to obtain a olefinic product comprising ethylene and propylene.2. A process according to claim 1 , wherein the olefinic product comprises ethylene and propylene in a weight ratio of ethylene to propylene equal to or below 1 claim 1 , preferably a weight ratio of ethylene to propylene in the range of from 1:2 to 1:1.3. A process according to claim 1 , wherein the molar ratio of ethanol to C4+ olefin in the feed to step is in the range of from 1:1 to 1:500.4. A process according to claim 1 , wherein the catalyst further comprises at least one zeolite selected from MEL claim 1 , TON and MTT type zeolites.5. A process according to claim 1 , wherein the ZSM-5 has a silica to alumina ratio of in the range of from 60 to 90.6. A process according to claim 1 , wherein the olefinic product further comprises C4+ olefins and at least part of the C4+ olefins are provided to step (a) as part of the feed.7. A process according to claim 1 , wherein the olefinic product further comprises C4+ olefins and at least part of the C4+ olefins are provided to a further step (b) and converted to a further olefinic product comprising ethylene and propylene in an olefin cracking process using a zeolite-comprising catalyst.8. A process according to claim 7 , wherein the catalyst of step (b) is the same as the catalyst in step (a).9. A process according to claim 1 , wherein the feed comprises methanol and ethanol and the weight ratio of methanol to ethanol in the feed is in the range of from 1:3 to 20:1.10. A process according to claim 1 , wherein the ethylene is further converted into at least one of ...

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Номер записи: 40
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130245291A1
Автор: SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprising: 1. A process for preparing ethylene and/or propylene , comprising the steps of: ethylene and/or propylene, and', 'a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins;, 'a) contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprisingb) recycling a first part of the C4+ hydrocarbon fraction to step (a).c) subjecting a second part of the C4+ hydrocarbon fraction to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;d) separating at least part of the etherification product stream into at least an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream;e) withdrawing at least part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons;f) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C.2. A process according claim 1 , wherein step (f) comprises recycling at least part of the ether-enriched stream to step (a).3. A process according claim 1 , further comprising providing an oxygenate—comprising stream to step (a) and contacting the oxygenate-comprising stream with the zeolite-comprising catalyst together with the C4+ olefins.4. A process according claim 1 , wherein part of the stream comprising C4 ...

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Номер записи: 41
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED OLEFINIC PRODUCT

Номер: US20130245292A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product , comprising the steps of:a) providing a C5 hydrocarbon-comprising stream, comprising C5 cyclopentene and C5 iso-olefins;b) subjecting the C5 hydrocarbon-comprising stream to an etherification process with methanol and/or ethanol wherein at least part of the C5 iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted olefinic product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the second olefinic product further comprises C5 olefins and wherein the process comprises the further steps:e) contacting at least part of the C5 olefins in the second olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type molecular sieve.5. A process according to claim 3 , wherein the molecular sieve-comprising catalyst ...

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Номер записи: 42
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE

Номер: US20130245293A1
Автор: SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of providing a hydrocarbon stream, comprising C4+ normal olefins and C4+ iso-olefins; converting C4+ isoolefins to tert-alkyl ether and separating the ethers from the hydrocarbon stream; isomersing the C4+ normal olefins to iso-olefins and converting C4+ isoolefins to tert-alkyl ether and separating the ethers from the hydrocarbon stream; converting the obtained tert-alkyl ether to ethylene and propylene by contacting the tert-alkyl ether with a molecular sieve-comprising catalyst and retrieving an olefinic product. 1. A process for preparing ethylene and/or propylene , comprising the steps of:a) providing a hydrocarbon stream, comprising C4+ normal olefins and C4+ iso-olefins;b) subjecting the hydrocarbon stream to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving a first etherification product stream;c) separating at least part of the first etherification product stream into at least a first ether-enriched stream and an iso-olefin-depleted hydrocarbon stream;d) subjecting at least part of the iso-olefin-depleted hydrocarbon stream to an isomerisation process wherein at least part of the normal olefins are isomerised to iso-olefins in the presence of an isomerisation catalyst, and retrieving an iso-olefin-enriched hydrocarbon stream;e) subjecting at least part of the iso-olefin-enriched hydrocarbon stream to a further etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving a further etherification product stream;f) separating at least part of the further etherification product stream into at least a further ether-enriched stream and an olefin-depleted hydrocarbon stream;g) converting at least part of the tert-alkyl ether ...

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Номер записи: 43
19-09-2013 дата публикации

METHOD FOR START-UP OF AN OXYGENATE-TO-OLEFIN PROCESS

Номер: US20130245294A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a method for start-up of an Oxygenate-to-Olefins process, which process comprises the steps: 2. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially consists of components selected from the group of externally supplied tert-alkyl ether claim 1 , methanol claim 1 , dimethyl ether and diluent.3. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially consists of components selected from the group of externally supplied tert-alkyl ether claim 1 , methanol and steam.4. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially contains in the range of from 3 to 50 wt % of tert-alkyl ether based on the oxygenates in the oxygenate-comprising feedstock.5. A method according to claim 1 , wherein subsequently at least part of the first amount of externally supplied tert-alkyl ether is substituted by at least part of the C4+ olefins in the product fraction containing C4+ olefins.6. A method according to claim 1 , wherein subsequently at least part of the first amount of externally supplied tert-alkyl ether is substituted by a further tert-alkyl ether obtained by etherification of iso-olefins contained the product fraction containing C4+ olefins with methanol and/or ethanol.7. A method according to claim 6 , wherein the iso-olefins contained in the product fraction containing C4+ olefins include at least one of isobutene and isopentene.8. A method according to claim 6 , wherein the iso-olefins are converted with methanol to the tert-alkyl ether by contacting the iso-olefin with methanol in the presence of an etherification catalyst at a temperature in the range of from 30 to 100° C.9. A method according to claim 7 , wherein the iso-olefins are converted with methanol to the tert-alkyl ether by contacting the iso-olefin with methanol in the presence of an etherification catalyst at a temperature in the range of from 30 to 100° C.10. A method according to claim 8 ...

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Номер записи: 44
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND A BUTADIENE-ENRICHED PRODUCT

Номер: US20130245295A1
Автор: VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and propylene and a butadiene-enriched product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and a butadiene-enriched product , comprising the steps of:a) providing a C4 hydrocarbon stream, comprising iso-olefins and in the range of from 10 to 90 wt % of butadiene, based on the weight of the C4 hydrocarbon stream.b) subjecting the C4 hydrocarbon stream to an etherification process, wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether in the presence of an etherification catalyst, wherein the molar ratio of methanol and/or ethanol to iso-olefin is maintained above 1, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a butadiene-enriched product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the olefinic product further comprises C4 olefins and wherein the process comprises the further step of:e) contacting at least part of the C4 olefins in the olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type ...

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Номер записи: 45
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: 46
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: 47
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: 48
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: 49
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: 50
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: 51
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: 52
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: 53
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: 54
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: 55
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: 56
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: 57
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: 58
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: 59
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: 60
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: 61
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: 62
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: 63
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: 64
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: 65
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: 66
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: 67
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: 68
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: 69
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: 70
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: 71
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: 72
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: 73
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: 74
10-04-2014 дата публикации

PEPTOID COMPOSITIONS AND METHODS OF USING THE SAME

Номер: US20140100354A1
Автор: Kirshenbaum Kent, Maayan Galia, Ward Michael
Принадлежит:

Novel peptoids are disclosed that have a formula represented by the following formulae Ia and Ib: 2. The method according to claim 1 , wherein 10-60% of the monomers are of formula III at the same time.3. (canceled)4. (canceled)5. (canceled)6. The method of claim 1 , wherein Ris alkyl substituted with phenyl claim 1 , naphthyl claim 1 , alkoxy claim 1 , or azido.7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)25. (canceled)26. The method of claim 1 , wherein L is a single bond.27. (canceled)28. The method of claim 1 , wherein L is —CH—CH—O—.29. The method of claim 1 , wherein Ris 8-hydroxyquinolinyl claim 1 , phenanthrolinyl claim 1 , terpyridinyl claim 1 , amino claim 1 , carboxy claim 1 , sulfhydryl claim 1 , imidazolyl claim 1 , or phosphinyl claim 1 , or metal complexes thereof.31. The method of claim 1 , wherein Ris —SH claim 1 , or —CH(Me)NH.32. The method of claim 1 , wherein Ris a nitroxide containing group.34. The method of claim 1 , wherein Ris nitroxide containing heterocycloalkyl claim 1 , or nitroxide containing heteroaryl.36. (canceled)37. (canceled)39. The method of claim 1 , wherein n is 3-20.40. (canceled)41. (canceled)42. The method of claim 1 , wherein X is H or Ac.43. (canceled)44. The method of claim 1 , wherein Y is OH claim 1 , OAc claim 1 , NHor NHAc.45. (canceled)46. (canceled)47. The method of claim 38 , wherein n is 2-11; one monomer is of formula III; and the other monomers are independently selected from Npm claim 38 , Nme claim 38 , Nspm claim 38 , Naz claim 38 , Nyl claim 38 , Nspe claim 38 , Nrpe claim 38 , Nsch claim 38 , and Nrch.48. (canceled)49. The method of claim 38 , wherein n is 3 claim 38 , 4 claim 38 , 5 claim 38 , 6 claim 38 , 7 claim 38 , or 9; and the peptoid is selected from the group consisting of H—N(L-R)CHC(O)—(Nspe)-NH; H-(Nspe)-N(L-R)CHC(O)—(Nspe ...

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Номер записи: 75
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: 76
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: 77
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: 78
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: 79
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: 80
07-01-2016 дата публикации

ANTICANCER COMPOUNDS AND PROCESS FOR THE PREPARATION THEREOF

Номер: US20160002193A1
Автор: Handore Kishor Laxman, Reddy Dumbala Srinivasa
Принадлежит:

The invention disclosed herein relates to novel Peribysin E analogues of general formula-I. Further the invention provides simple, economical and short synthesis of Peribysin E and its analogues of Formula I, in good yield and purity leading to the identification of more potent cell adhesion inhibitors. 2. The compound as claimed in claim 1 , wherein said compound exhibit cell adhesion inhibition activity wherein the inhibition concentration at 50% (IC) is in the range of 2.0-20.0 μM.5. The process according to claim 4 , wherein the alkali metal hydroxide used is selected from the group consisting of KOH claim 4 , NaOH claim 4 , Ca(OH)or mixtures thereof.6. The process according to claim 4 , wherein selective reduction is carried out in presence of NaBH claim 4 , LiBH claim 4 , Zn(BH)or AlH.7. The process according to claim 4 , wherein the organic solvent used is selected from the group consisting of THF claim 4 , DCM claim 4 , Acetonitrile claim 4 , DMF claim 4 , Ethyl acetate claim 4 , DMSO or mixtures thereof.8. A pharmaceutical composition comprising Peribysin E analogues of general formula I claim 1 , and stereoisomers and pharmaceutically acceptable salts thereof claim 1 , according to claim 1 , together with pharmaceutically acceptable excipients and/or vehicles claim 1 , for inhibiting cellular adhesion.9. A method of treating or inhibiting cellular adhesion in a subject comprising administrating Peribysin E analogues of the general formula I claim 1 , according to claim 1 , optionally along with pharmaceutically acceptable excipients and/or vehicles claim 1 , wherein the subject is human.10. Use of Peribysin E analogues of the general formula I claim 1 , according to for the preparation of medicament useful for treating or inhibiting the cell adhesion in a subject claim 1 , wherein the subject is human. The present invention relates to compound of general formula I useful for the treatment of cancer. Particularly, present invention further relates to the ...

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Номер записи: 81
05-01-2017 дата публикации

METHODS FOR PRODUCTION OF TEREPHTHALIC ACID FROM ETHYLENE OXIDE

Номер: US20170001940A1
Автор: Sookraj Sadesh H.
Принадлежит:

The present invention provides methods for the production of terephthalic acid and derivatives thereof using ethylene oxide, carbon monoxide and furan as feedstocks. The process is characterized by high yields and high carbon efficiency. The process can utilize 100% biobased feedstocks (EO via ethanol, CO via biomass gasification, and furan via known processes from cellulosic feedstocks). 1. A process for the production of terephthalic acid or terephthalate utilizing furan , ethylene oxide , and carbon monoxide as the feedstocks , the process comprising the steps of:reacting the ethylene oxide and carbon monoxide to form a four carbon compound;deriving a chemical product from the four carbon compound wherein the chemical product comprises at least one of terephthalic acid, a mono or diester of terephthalic aid, and a mono or bis metal salt of terephthalic acid; andrecovering the chemical product.2. The process of wherein the carbon efficiency of the process is greater than 80%.3. The process of claim 2 , comprising the step of:converting the four carbon compound to an intermediate compound selected from the group consisting of: maleic anhydride, maleic acid, fumaric acid, a mono- or di-ester of fumaric acid, a mono- or di-ester of maleic acid, a mono- or bis salt of maleic acid, a mono- or bis salt of fumaric acid, and a mixture of any two or more of these and converting the intermediate compound to the chemical product.4. The process of claim 3 , comprising the step of converting the intermediate compound to provide an eight carbon compound containing a cyclohexene ring and converting the eight carbon product containing a cyclohexene ring to the chemical product.5. The process of claim 4 , further comprising the step of dehydrating the eight carbon product to provide a product precursor containing a disubstituted benzene ring and converting the product precursor to the chemical product.6. The process of claim 1 , characterized in that two adjacent ring carbon atoms ...

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Номер записи: 82
04-01-2018 дата публикации

EPOXY COMPOUND, METHOD FOR PRODUCING THE SAME, EPOXY RESIN COMPOSITION, AND CURED PRODUCT THEREOF

Номер: US20180002261A1
Автор: Hayashi Masamichi, Kinoshita Hiroshi, Morinaga Kunihiro, Yoshimoto Yasuyo
Принадлежит:

The present invention provides an epoxy compound which is 2,2′,7,7′-tetraglycidyloxy-1,1′-binaphthalene. Also, the present invention provides a method for producing [1,1′-binaphthalene]-2,2′,7,7′-tetraol, the method including a step of bringing a crude product produced by dimerization reaction of naphthalene-2,7-diol or a naphthalene-2,7-diol derivative into contact with an aromatic solvent; a step of separating [1,1′-binaphthalene]-2,2′,7,7′-tetraol dissolved in the aromatic solvent from insoluble substances; and a step of removing the solvent from a solution of [1,1′-binaphthalene]-2,2′,7,7′-tetraol. The present invention also provides a method for producing an epoxy compound, the method including reacting [1,1′-binaphthalene]-2,2′,7,7′-tetraol or [1,1′-binaphthalene]-2,2′,7,7′-tetraol monohydrate with epihalohydrin. 1. An epoxy compound which is 2 ,2′ ,7 ,7′-tetraglycidyloxy-1 ,1′-binaphthalene.2. A method for producing an epoxy compound , the method comprising reacting [1 ,1′-binaphthalene]-2 ,2′ ,7 ,7′-tetraol or [1 ,1′-binaphthalene]-2 ,2′ ,7 ,7′-tetraol monohydrate with epihalohydrin.3. An epoxy compound produced by the method according to .4. An epoxy resin composition comprising the epoxy compound according to and a curing agent.5. A cured product produced by curing the epoxy resin composition according to .611.-. (canceled)12. An epoxy resin composition comprising the epoxy compound according to and a curing agent.13. A cured product produced by curing the epoxy resin composition according to . This application is a divisional application of U.S. Ser. No. 14/431,968 filed on Mar. 27, 2015, which claims the right of priority under 35 U.S.C. §119 based on Japanese Patent Application Nos. 2012-261035 filed on Nov. 29, 2012 and 2012-216516 filed on Sep. 28, 2012. The entire contents of these applications are incorporated herein by reference in their entirety.The present invention relates to an epoxy compound and a method for producing the compound which ...

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Номер записи: 83
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: 84
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: 85
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: 86
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: 87
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: 88
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: 89
02-01-2020 дата публикации

HIERARCHICAL MAGNETIC NANOPARTICLE-ENZYME MESOPOROUS ASSEMBLIES EMBEDDED IN MACROPOROUS SCAFFOLDS

Номер: US20200002698A1
Автор: ANESHANSLEY Daniel, CORGIE Stephane C., Duan Xiaonan, Giannelis Emmanuel, WALKER Larry P.
Принадлежит: CORNELL UNIVERSITY

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion. 122.-. (canceled)23. A method for epoxidation reactions of alkenes , the method comprising reacting alkenes in the presence of oxygen with a hierarchical catalyst composition comprising a continuous macroporous scaffold in which is incorporated self-assembled mesoporous aggregates of magnetic nanoparticles containing an oxygen-transfer enzyme embedded in mesopores of said mesoporous aggregates of magnetic nanoparticles , to produce an alkene oxide.24. The method of claim 23 , wherein said oxygen-transfer enzyme is a chloroperoxidase or a lipase.2539.-. (canceled)40. The method of claim 23 , further comprising magnetic particles claim 23 , not belonging to said mesoporous aggregates of magnetic nanoparticles claim 23 , embedded in said continuous macroporous scaffold.41. The method of claim 23 , wherein said continuous macroporous scaffold has a polymeric composition.42 ...

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Номер записи: 90
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: 91
14-01-2016 дата публикации

PHENOLIC EPOXY COMPOUNDS

Номер: US20160009672A1
Автор: Adam Georgius Abidal
Принадлежит:

Disclosed herein are compositions and methods of making phenolic compounds, and resins comprising these phenolic compounds. The compounds include multifunctional epoxies, amino glycidyl derivatives, and multi-functional amines prepared from hydroxymethyl derivatives of phenols and bisphenols. 25-. (canceled)6. The compound of claim 1 , wherein:{'sub': '1', 'Ris H or Z;'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), —N(CHCH—O—Z), —N(CHOH), —N(CHNH), or —N(CHCHOH);'}{'sub': 3', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), —N(CHCH—O—Z), —N(CHOH), —N(CHNH), or —N(CHCHOH); and'}{'sub': 4', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), —N(CHCH—O—Z), —N(CHOH), —N(CHNH), or —N(CHCHOH).'}7. The compound of claim 1 , wherein:{'sub': '1', 'Ris Z;'}{'sub': 2', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), or —N(CHCH—O—Z);'}{'sub': 3', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), or —N(CHCH—O—Z); and'}{'sub': 4', '2', '2', '2', '2', '2', '2, 'Ris —N(Z), —N(CH—O—Z), or —N(CHCH—O—Z).'}8. The compound of claim 1 , wherein Ris Z claim 1 , Ris —N(Z) claim 1 , Ris —N(Z)and Ris —N(Z).9. The compound of claim 1 , wherein Ris Z claim 1 , and each of Ris —N(CH—O—Z) claim 1 , Ris{'sub': 2', '2', '4', '2', '2, '—N(CH—O—Z)and Ris —N(CH—O—Z).'}10. The compound of claim 1 , wherein Ris Z claim 1 , and each of Ris —N(CHCH—O—Z) claim 1 , Ris{'sub': 2', '2', '2', '4', '2', '2', '2, '—N(CHCH—O—Z)and Ris —N(CHCH—O—Z).'}11. The compound of claim 1 , wherein:{'sub': '1', 'Ris H;'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(CHOH), —N(CHNH), or —N(CHCHOH);'}{'sub': 3', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(CHOH), —N(CHNH), or —N(CHCHOH); and'}{'sub': 4', '2', '2', '2', '2', '2', '2', '2', '2, 'Ris —N(CHOH), —N(CHNH), or —N(CHCHOH).'}12. The compound of claim 1 , wherein Ris H claim 1 , Ris —N(CHOH) claim 1 , Ris ...

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Номер записи: 92
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: 93
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: 94
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: 95
09-01-2020 дата публикации

PROCESSES FOR PREPARING PARTIALLY FLUORINATED EPOXIDES AND PERFLUORINATED EPOXIDES AND COMPOSITIONS RELATED THERETO

Номер: US20200010439A1
Автор: Brandt Drew Richard, PETROV VIACHESLAV A
Принадлежит: THE CHEMOURS COMPANY FC, LLC

This application relates to the preparation of partially fluorinated epoxides and perfluorinated epoxides which may be useful in various applications including refrigerants, heat transfer media, high-temperature heat pumps, organic Rankine cycles, fire extinguishing/fire suppression, propellants, foam blowing, solvents, gaseous dielectrics, and/or cleaning fluids. Compositions comprising the fluorinated epoxide compounds are also provided. 2. (canceled)3. (canceled)4. The process of claim 1 , wherein Rand Rare each independently H or F; and Rand Rare each independently selected from partially fluorinated or perfluorinated Calkyl.5. The process of claim 1 , wherein the hypohalite salt is selected from NaOCl claim 1 , KOCl claim 1 , NaOBr claim 1 , and Ca(OCl).6. (canceled)7. The process of claim 1 , wherein the cationic phase transfer catalyst is a quaternary ammonium salt or a quaternary phosphonium salt.8. (canceled)9. The process of claim 1 , the cationic phase transfer catalyst has formula (R)(R)(R)(R)NX or (R)(R)(R)(R)PX claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare each independently selected from Calkyl claim 1 , Ccycloalkyl claim 1 , 4-14 membered heterocycloalkyl claim 1 , Caryl claim 1 , 5-14 membered heteroaryl claim 1 , Ccycloalkyl-Calkylene claim 1 , 4-14 membered heterocycloalkyl-Calkylene claim 1 , Cmembered aryl-Calkylene claim 1 , and 5-14 membered heteroaryl-Calkylene claim 1 , each of which is optionally substituted by 1 claim 1 , 2 claim 1 , 3 claim 1 , or 4 groups independently selected from OH claim 1 , Calkoxy claim 1 , Calkyl claim 1 , Calkenyl claim 1 , Cfluoroalkyl claim 1 , di-(Calkyl)amino claim 1 , Ccycloalkyl claim 1 , 4-14 membered heterocycloalkyl claim 1 , Cmembered aryl claim 1 , and 5-14 membered heteroaryl; and X is an anion.10. The process of claim 1 , wherein the cationic phase transfer catalyst has formula (R)(R)(R)(R)NX claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare eah independently selected ...

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Номер записи: 96
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: 97
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: 98
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: 99
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: 100