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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 6852. Отображено 100.
26-01-2012 дата публикации

Process for Preparing Formic Acid by Reaction of Carbon Dioxide with Hydrogen

Номер: US20120022290A1
Автор: Daniel Schneider, Donata Maria Fries, Klaus-Dieter Mohl, Martin Schäfer, Rocco Paciello, Stefan Rittinger, Thomas Schaub
Принадлежит: BASF SE

A process for preparing formic acid by reaction of carbon dioxide ( 1 ) with hydrogen ( 2 ) in a hydrogenation reactor (I) in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine comprising at least 12 carbon atoms per molecule and a polar solvent comprising one or more monoalcohols selected from among methanol, ethanol, propanols and butanols, to form formic acid/amine adducts as intermediates which are subsequently thermally dissociated, where the work-up of the output ( 3 ) from the hydrogenation reactor (I) is carried out by addition of water so as to increase the distribution coefficient of the catalyst between the upper phase ( 4 ) and the lower phase.

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Номер записи: 1
19-04-2012 дата публикации

Acetic Acid Production Process

Номер: US20120095259A1
Автор: Brian A. Salisbury, Noel C. Hallinan
Принадлежит: Lyondell Chemical Technology LP

Disclosed is a method for controlling an acetic acid production process. The method comprises: (i) reacting methanol and carbon monoxide in the presence of a carbonylation catalyst, a catalyst stabilizer, methyl iodide, water, and methyl acetate to produce a reactor mixture which comprises the catalyst, the catalyst stabilizer, methanol, carbon monoxide, carbon dioxide, methyl iodide, methyl acetate, water, and acetic acid; (ii) measuring the concentration of a component of the reactor mixture by Raman spectroscopic analysis; and (iii) adjusting the component concentration in the reactor mixture in response to the measured concentration. The method of the invention is particularly useful for measuring and controlling the concentration of carbon monoxide in the reactor liquid mixture.

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Номер записи: 2
24-05-2012 дата публикации

Process for the preparation of halogenated benzoic acid derivatives

Номер: US20120130121A1
Автор: Christophe Pfleger, Dinesh Maganbhai Patel, James Jappy, Rene Trussardi, Robert John Ernest Tidswell, Stefan Hildbrand, Stephan Bachmann
Принадлежит: Individual

The present invention comprises a process for the preparation of 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid of the formula or of a salt thereof 3-Chloro-2-fluoro-5-trifluoromethyl benzoic acid or salts thereof are versatile intermediates for the preparation of active pharmaceutical or agrochemical agents.

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Номер записи: 3
21-06-2012 дата публикации

Process for the manufacture of sevoflurane

Номер: US20120157708A1
Автор: Max Josef Braun
Принадлежит: SOLVAY FLUOR GMBH

A process for the manufacture of Sevoflurane CF 3 —CH(OCH 2 F)—CF 3 which comprises (a) manufacturing a substituted malonic acid derivative of formula (I): R 1 OOC—CH(OCH 2 X)—COOR 2 or of formula (II): R 3 HNOC—CH(OCH 2 X)—CONHR 4 , wherein X is OH or a leaving group which can be substituted by nucleophilic substitution and wherein R 1 , R 2 R 3 , R 4 , equal to or different from each other, are independently selected from the group consisting of H, an alkyl group having from 1 to 10 carbon atoms which is optionally substituted by at least one halogen atom, an aralkyl group, and an aryl group; and (b) further reacting said malonic acid derivative as intermediate for the manufacture of Sevoflurane CF 3 —CH(OCH 2 F)—CF 3 .

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Номер записи: 4
01-11-2012 дата публикации

Recovering Ethanol with Sidestreams to Regulate C3+ Alcohols Concentrations

Номер: US20120277489A1
Автор: James H. Zink, Mark O. Scates, Oyeyemi Oyerinde, Raymond J. Zinobile, Ronald D. Shaver
Принадлежит: Celanese International Corp

This invention relates to a process for producing ethanol and recovering methyl iodide, the process comprising the steps of carbonylating methanol in a carbonylation system in the presence of a carbonylation catalyst under conditions effective to form acetic acid; hydrogenating the acetic acid in a hydrogenation system in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol and water; and separating the crude ethanol product to form an ethanol stream and a water stream.

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Номер записи: 5
01-11-2012 дата публикации

Process to Recover Alcohol with Reduced Water From Overhead of Acid Column

Номер: US20120277497A1
Автор: Adam OROSCO, Claudio Ribeiro, David Lee, Emily Duff, R. Jay Warner, Robert Alan Deck, Victor J. Johnston
Принадлежит: Celanese International Corp

A process for recovering ethanol obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and ethyl acetate and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream.

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Номер записи: 6
08-11-2012 дата публикации

Removal of Amine Compounds from Carbonylation Process Stream Containing Corrosion Metal Contaminants

Номер: US20120283471A1
Автор: Brian Hokkanen, G. Paull Torrence, Yaw-Hwa Liu
Принадлежит: Celanese International Corp

A process for removing amine compounds from a process stream derived from a carbonylation process. The amine compounds may be present as iodide salts. The process stream also contains corrosion metal contaminants. The amine compounds are removed by mixing a portion of the process stream a slipstream to form an aqueous stream having a water concentration of greater than 50 wt. %. The aqueous stream is contacted with an exchange resin to remove amine compounds, as well as corrosion metal contaminants.

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Номер записи: 7
08-11-2012 дата публикации

Removal of Aromatics from Carbonylation Process

Номер: US20120283472A1
Автор: G. Paull Torrence, Ronald David Shaver, Yaw-Hwa Liu
Принадлежит: Celanese International Corp

The invention relates to processes for removing aromatics from the reactants that are fed to a carbonylation reactor. The aromatics are removed using a guard bed that comprises an adsorbent.

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Номер записи: 8
07-02-2013 дата публикации

Process for Separating Ethanol Having Low Acid

Номер: US20130035521A1
Автор: Adam OROSCO, David Lee, Lincoln Sarager, Manuel Salado, R. Jay Warner, Trinity Horton, Victor J. Johnston
Принадлежит: Celanese International Corp

A process for operating a distillation column to separate an ethanol mixture comprising ethanol and acetic acid where the recovered ethanol comprises less than 700 wppm acetic acid. The operating conditions for the column may vary depending on the fed composition. In particular the process provides energy efficient recovery of ethanol with low concentration acetic acid.

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Номер записи: 9
18-04-2013 дата публикации

Methanol Carbonylation System with Multiple Absorber Feed Options

Номер: US20130096341A1
Автор: Lun-Kuang Liu, Raymond J. Zinoble, Tommy W. Doggett
Принадлежит: Celanese International Corp

A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.

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Номер записи: 10
25-04-2013 дата публикации

Methanol Carbonylation Process with Rhodium Catalyst, an Iodide Salt and a Metallic Co-Catalyst Selected from Transition Metals, Indium, Strontium, Barium, Zinc, Tin and Heteropoly Acids

Номер: US20130102809A1
Автор: Gautron Samuel, Kalck Philippe J., Lassauque Nicolas D., Le Berre Carole M., Serp Philippe G., Torrence G. Paull
Принадлежит: Celanese International Corporation

A carbonylation process for making acetic acid uses a metallic co-catalyst composition effective as a rhodium stabilizer and rate promoter at molar ratios of metal/rhodium of from about 0.5 to 30. A preferred process includes: (a) reacting methanol with a carbon monoxide feedstock in a rhodium-based catalytic reaction mixture having: (i) a rhodium catalyst metal, (ii) methyl iodide maintained from about 1 to 20 weight percent, (iii) a lithium iodide co-catalyst, (iv) a metallic co-catalyst composition, (v) water maintained from 0.1 weight percent to less than 8 weight percent, (vi) methyl acetate maintained from about 0.5 to about 30 weight percent, and (vii) acetic acid; (b) flashing crude acetic acid from the reaction mixture; and (c) purifying the crude acetic acid. This process achieves stability and a STY greater than 10 mol/L/hr, with substantially less than a theoretically equivalent inorganic iodide content corresponding to the metallic co-catalyst and lithium iodide. 1226-. (canceled)228. The process according to claim 227 , wherein the amount of inorganic iodide present is less than 70% of the theoretically equivalent inorganic iodide content.229. The process according to claim 227 , wherein the process is operated with a total inorganic iodide content in the reaction mixture of less than 5 weight %.230. The process according to claim 227 , wherein the inorganic iodide-providing co-catalyst is lithium iodide present in a lithium iodide:rhodium molar ratio of about 1:1 up to a ratio of about 50:1.231. The process according to claim 227 , wherein the process is further characterized by a STY greater than 10 moles/L/hr.232. The process according to claim 227 , wherein the iodide promoter is methyl iodide maintained in said reaction mixture in a concentration of from about 1 to about 20 weight percent.233. The process according to claim 227 , wherein the process is operated with a total inorganic iodide content in the reaction mixture of less than 4.5 weight % ...

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Номер записи: 11
25-04-2013 дата публикации

Methanol Carbonylation Process with Rhodium Catalyst and a Lanthanide Metal Co-Catalyst

Номер: US20130102810A1
Автор: Gautron Samuel, Kalck Philippe J., Lassauque Nicolas D., Le Berre Carole M., Serp Philippe G., Torrence G. Paull
Принадлежит: Celanese International Corporation

A carbonylation process for making acetic acid using a metallic co-catalyst composition, effective as a rhodium stabilizer and/or rate promoter, at molar ratios of metal/rhodium of about 0.5 to 40. The process includes reacting methanol with carbon monoxide in the presence of a rhodium-based catalytic metal complex with about 1 to 20 weight percent methyl iodide, less than about 8 weight % water and about 0.5 to about 30 weight percent methyl acetate. The crude acetic acid is flashed and further purified. This process is stable in the absence of a lithium iodide cocatalyst, or in low concentrations of lithium iodide, with an STY greater than 10 mol/L/hr. 1226-. (canceled)228. The process according to claim 227 , wherein the amount of inorganic iodide present is less than 75% of the theoretically equivalent inorganic iodide content corresponding to the presence of the metallic co-catalyst composition.229. The process according to claim 227 , wherein the process is operated with an inorganic iodide content in the reaction mixture of less than 4.5 weight %.230. The process according to claim 227 , wherein the process is further characterized by a reaction productivity (STY) greater than 10 moles/L/hr.231. The process according to claim 227 , wherein the iodide promoter is methyl iodide.232. The process according to claim 227 , wherein the metallic co-catalyst composition is provided without providing additional inorganic iodide.233. The process according to claim 232 , wherein the metal is present in a metal:rhodium molar ratio of at least 5:1 and up to 40:1.234. The process according to claim 227 , wherein the reaction mixture further comprises an inorganic iodide-providing second co-catalyst in an amount that alone is insufficient to stabilize the rhodium catalyst.235. The process according to claim 234 , wherein the inorganic iodide-providing second co-catalyst is lithium iodide.236. The process according to claim 234 , wherein the inorganic iodide-providing second ...

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Номер записи: 12
02-05-2013 дата публикации

PROCESS FOR PRODUCING ALPHA-KETOCARBOXYLIC ACID

Номер: US20130109884A1
Автор: HAGIYA Koji
Принадлежит: Sumitomo Chemical Company, Limited

The present invention relates to a process for producing an α-ketocarboxylic acid, comprising a step of oxidizing an α-ketoaldehyde by mixing a base, carbon dioxide, the α-ketoaldehyde and a compound represented by formula (2-1). 4. The process according to claim 3 , wherein the compound represented by the formula (2-1) is a compound represented by the formula (2-2).6. The process according to claim 1 , wherein the base is at least one base selected from the group consisting of organic bases claim 1 , alkali metal carbonates and alkaline earth metal carbonates.10. The process according to claim 9 , wherein the compound represented by the formula (2-1) is a compound represented by the formula (2-2).12. The process according to claim 7 , wherein the base is at least one base selected from the group consisting of organic bases claim 7 , alkali metal carbonates and alkaline earth metal carbonates. The present application is filed, claiming the priorities based on the Japanese Patent Application Nos. 2010-144589 (filed on Jun. 25, 2010) and 2010-187917 (filed on Aug. 25, 2010), and a whole of the contents of these applications is incorporated herein by reference.The present invention relates to a process for producing an α-ketocarboxylic acid.Alpha-ketocarboxylic acids are known as useful compounds for an intermediate in the preparation of pharmaceuticals and agrichemicals since α-ketocarboxylic acids can be converted to α-amino acids by reductive amination.As a process for producing an α-ketocarboxylic acid, a process in which phenylglyoxal as an α-ketoaldehyde is oxidized with concentrated sulfuric acid and sodium nitrite to obtain benzoylformic acid, is disclosed in J. Mol. Catal. A: Chemical, 2005, 235, pp. 17-25. In addition, a process in which phenylglyoxal is oxidized with dimethyldioxolan to obtain benzoylformic acid, is disclosed in Org. Biomol. Chem., 2005, 3, pp. 2310-2318.An object of the present invention is to provide a new process for producing an α- ...

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Номер записи: 13
09-05-2013 дата публикации

PROCESS FOR PRODUCING ACETIC ACID

Номер: US20130116470A1
Автор: GOTO Kensuke, Miura Hiroyuki, Shimizu Masahiko, Ueno Takashi, Yamaguchi Kazuo
Принадлежит: Daicel Corporation

A production process of acetic acid comprises a reaction step for continuously allowing at least one member selected from the group consisting of methanol, dimethyl ether, and methyl acetate to react with carbon monoxide in a catalyst system comprising a rhodium catalyst, an iodide salt, and methyl iodide in the presence of acetic acid and water in a plant compromising a reactor ; a flasher ; and a distillation column ; wherein part of the vaporized stream is introduced into a heat exchanger . The process achieves a production of acetic acid with a high purity in a resource-saving and energy-saving equipment by efficiently removing a reaction heat even in a large-sized plant. 1. A process for producing acetic acid , which comprisesa reaction step for continuously allowing at least one member selected from the group consisting of methanol, dimethyl ether, and methyl acetate to react with carbon monoxide in a catalyst system comprising a rhodium catalyst, an iodide salt, and methyl iodide in the presence of acetic acid and water in a reactor,a flash evaporation step for continuously feeding a flasher with a liquid reaction medium withdrawn from the reactor to separate a liquid stream and a vaporized stream from the liquid reaction medium, anda distillation step for feeding a distillation column with the vaporized stream for obtaining a purified acetic acid,wherein part of the vaporized stream is introduced into a heat exchanger for condensation, and a liquefied stream condensed by the heat exchanger is recycled to the reactor.2. A process according to claim 1 , wherein 1 to 50% by weight of the vaporized stream is introduced into the heat exchanger.3. A process according to any one of or claim 1 , wherein an acetic acid stream obtained from the distillation step for purifying acetic acid is subjected to a further distillation and/or an adsorption treatment for obtaining a further purified acetic acid.4. A process according to claim 1 , wherein the liquid stream ...

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Номер записи: 14
16-05-2013 дата публикации

Synthesis of High Caloric Fuels and Chemicals

Номер: US20130118063A1
Автор: Jan Zygmunt, John Henri, Mark Bergren, Robert Zubrin
Принадлежит: PIONEER ENERGY INC

In one embodiment, the present application discloses methods to selectively synthesize higher alcohols and hydrocarbons useful as fuels and industrial chemicals from syngas and biomass. Ketene and ketonization chemistry along with hydrogenation reactions are used to synthesize fuels and chemicals. In another embodiment, ketene used to form fuels and chemicals may be manufactured from acetic acid which in turn can be synthesized from synthesis gas which is produced from coal, biomass, natural gas, etc.

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Номер записи: 15
16-05-2013 дата публикации

Electrochemical Co-Production of Chemicals with Sulfur-Based Reactant Feeds to Anode

Номер: US20130118909A1
Автор: Jerry J. Kaczur, Kyle Teamey
Принадлежит: Liquid Light Inc

The present disclosure includes a system and method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode. The method may include a step of contacting the first region with a catholyte comprising carbon dioxide. The method may include another step of contacting the second region with an anolyte comprising a sulfur-based reactant. Further, the method may include a step of applying an electrical potential between the anode and the cathode sufficient to produce a first product recoverable from the first region and a second product recoverable from the second region. An additional step of the method may include removing the second product and an unreacted sulfur-based reactant from the second region and recycling the unreacted sulfur-based reactant to the second region.

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Номер записи: 16
16-05-2013 дата публикации

System and Method for Oxidizing Organic Compounds While Reducing Carbon Dioxide

Номер: US20130118910A1
Автор: Andrew B. Bocarsly, Emily Barton Cole, Jerry J. Kaczur, Kyle Teamey, Narayanappa Sivasankar, Paul Majsztrik
Принадлежит: Liquid Light Inc

Methods and systems for electrochemically generating an oxidation product and a reduction product may include one or more operations including, but not limited to: receiving a feed of at least one organic compound into an anolyte region of an electrochemical cell including an anode; at least partially oxidizing the at least one organic compound at the anode to generate at least carbon dioxide; receiving a feed including carbon dioxide into a catholyte region of the electrochemical cell including a cathode; and at least partially reducing carbon dioxide to generate a reduction product at the cathode.

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Номер записи: 17
16-05-2013 дата публикации

PROCESS FOR PREPARING FORMIC ACID BY REACTION OF CARBON DIOXIDE WITH HYDROGEN

Номер: US20130123526A1
Автор: Fries Donata Maria, Meier Anton, Paciello Rocco, PAZICKY Marek, Schaub Thomas
Принадлежит: BASF SE

The invention relates to a process for preparing formic acid by reaction of carbon dioxide with hydrogen in a hydrogenation reactor in the presence of a transition metal complex as a catalyst comprising at least one element from group 8, 9 or 10 of the Periodic Table and at least one phosphine ligand with at least one organic radical having at least 13 carbon atoms, of a tertiary amine and of a polar solvent to form a formic acid-amine, adduct, which is subsequently dissociated thermally to formic acid and the corresponding tertiary amine. on unit. 115.-. (canceled)16. A process for preparing formic acid , comprising the steps of [{'br': None, 'sup': 1', '2', '3, 'NRRR\u2003\u2003(A1)'}, 'in which', {'sup': 1', '2', '3, 'R, R, Rare each independently an unbranched or branched, acyclic or cyclic, aliphatic, araliphatic or aromatic radical having in each case 1 to 16 carbon atoms, where individual carbon atoms may each independently also be substituted by a hetero group selected from the —O— and >N— groups, and two or all three radicals may also be joined to one another to form a chain comprising at least four atoms in each case,'}, 'in the presence of at least one transition metal complex as a catalyst, comprising at least one element selected from groups 8, 9 and 10 of the Periodic Table and at least one phosphine ligand with at least one organic radical having at least 13 carbon atoms,', 'in a hydrogenation reactor', 'to obtain, optionally after addition of water, a biphasic hydrogenation mixture (H) comprising', 'an upper phase (U1) comprising the catalyst and the tertiary amine (A1), and', {'br': None, 'sup': 1', '2', '3, 'i': '*x', 'sub': 'i', 'NRRRHCOOH\u2003\u2003(A2)'}, 'a lower phase (L1) comprising the at least one polar solvent, residues of the catalyst and a formic acid-amine adduct of the general formula (A2)'}, 'in which', {'sub': 'i', 'xis in the range from 0.4 to 5 and'}, {'sup': 1', '2', '3, 'R, R, Rare each as defined above,'}], '(a) homogeneously ...

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Номер записи: 18
23-05-2013 дата публикации

PROCESS FOR THE SELECTIVE OXIDATION OF CARBON MONOXIDE

Номер: US20130131380A1
Автор: Dubois Jean-Luc, Dupont Nicolas, Patience Gregory
Принадлежит: Arkema France

The invention relates to a process of the selective oxidation of carbon monoxide to carbon dioxide present in a gas mixture comprising at least one hydrocarbon or a hydrocarbon derivative, and to its integration into a process for producing hydrocarbon derivatives. The process according to the invention comprises a step that consists in bringing said gas mixture into contact with a solid catalyst capable of oxidizing carbon monoxide to carbon dioxide at a chosen temperature, characterized on that said step is carried out in a fluidized bed. 1. A process for the selective oxidation of carbon monoxide present in a gas mixture comprising at least one hydrocarbon or one hydrocarbon derivative and carbon monoxide , said process comprising bringing said gas mixture into contact with a fluidized bed of a solid oxidizing catalyst whereby said carbon monoxide is oxidized to carbon dioxide at a chosen temperature.2. The process as claimed in claim 1 , characterized in that the hydrocarbon is a saturated or mono- or diunsaturated linear or branched hydrocarbon comprising from 2 to 6 carbon atoms claim 1 , or an aromatic hydrocarbon comprising from 6 to 12 carbon atoms.3. The process as claimed in claim 1 , characterized in that the hydrocarbon derivative is selected from the group consisting of anhydrides claim 1 , aldehydes claim 1 , unsaturated carboxylic acids claim 1 , unsaturated nitriles claim 1 , mixtures thereof claim 1 , ethylene oxide claim 1 , propylene oxide and 1 claim 1 ,2-dichloroethane.4. The process as claimed in claim 1 , characterized in that the catalyst is in the form of solid particles with a particle size ranging from 20 to 1000 microns.5. The process as claimed in claim 1 , characterized in that the catalyst is selected from the group consisting of catalysts based on noble metals supported on an inorganic support.6. The process as claimed in claim 1 , characterized in that the temperature of the fluidized bed is lower than the temperature corresponding ...

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Номер записи: 19
30-05-2013 дата публикации

Electrochemical Co-Production of Chemicals Employing the Recycling of a Hydrogen Halide

Номер: US20130134048A1
Автор: Kaczur Jerry J., Teamey Kyle
Принадлежит: Liquid Light, Inc.

The present disclosure is a system and method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode. The method may include a step of contacting the first region with a catholyte comprising carbon dioxide. The method may include another step of contacting the second region with an anolyte comprising a recycled reactant. The method may include a step of applying an electrical potential between the anode and the cathode sufficient to produce a first product recoverable from the first region and a second product recoverable from the second region. The second product may be removed from the second region and introduced to a secondary reactor. The method may include forming the recycled reactant in the secondary reactor. 1. A method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode , the method comprising the steps of:contacting the first region with a catholyte comprising carbon dioxide;contacting the second region with an anolyte comprising a recycled reactant;applying an electrical potential between the anode and the cathode sufficient to produce a first product recoverable from the first region and a second product recoverable from the second region;removing the second product from the second region;introducing the second product to a secondary reactor; andforming the recycled reactant in the secondary reactor.2. The method according to claim 1 , wherein the recycled reactant is a hydrogen halide claim 1 , HX claim 1 , where X is selected from a group consisting of F claim 1 , Cl claim 1 , Br claim 1 , I claim 1 , and mixtures thereof.3. The method according to claim 2 , wherein the second product is X.4. The method according to claim 3 , wherein the reaction in the secondary reactor includes an alkane claim 3 , ...

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Номер записи: 20
30-05-2013 дата публикации

Integrated process for producing polyvinyl alcohol or a copolymer thereof and ethanol

Номер: US20130137903A1
Автор: Mark O. Scates
Принадлежит: Celanese International Corp

Ethanol is produced from acetic acid or acetic anhydride or a mixture of acetic acid and acetic anhydride by a hydrogenation reaction. The acetic acid or acetic anhydride or a mixture of acetic acid and acetic anhydride is produced from methyl acetate by a carbonylation reaction. The methyl acetate is produced as a byproduct during the conversion of a vinyl acetate polymer or copolymer to a polymer or copolymer of vinyl alcohol. By integrating processes as described herein, a valuable product, i.e. ethanol, is produced from a methyl acetate byproduct.

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Номер записи: 21
20-06-2013 дата публикации

Process for the Preparation of Oxidized Phospholipids

Номер: US20130158283A1
Автор: Eti Kovalevski-Ishai, Gideon Halperin
Принадлежит: Vascular Biogenics Ltd

Novel synthetic routes, which are highly applicable for industrial preparation of therapeutically beneficial oxidized phospholipids are disclosed. Particularly, novel methods for efficiently preparing compounds having a glycerolic backbone and one or more oxidized moieties attached to the glycerolic backbone, which are devoid of column chromatography are disclosed. Further disclosed are novel methods of introducing phosphorous-containing moieties such as phosphate moieties to compounds having glycerolic backbone and intermediates formed thereby.

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Номер записи: 22
27-06-2013 дата публикации

Methanol Carbonylation Process with Rhodium Catalyst and a Metallic Co-Catalyst Selected from Transition Metals, Zinc, Beryllium, Indium, Tin, Strontium and Barium

Номер: US20130165688A1
Автор: Gautron Samuel, Kalck Philippe J., Lassauque Nicolas D., Le Berre Carole M., Serp Philippe G., Torrence G. Paull
Принадлежит: Celanese International Corporation

A carbonylation process for making acetic acid using a metallic co-catalyst composition, effective as a rhodium stabilizer and/or rate promoter, at molar ratios of metal/rhodium of about 0.5 to 40. The process includes reacting methanol with carbon monoxide in the presence of a rhodium-based catalytic metal complex with about 1 to 20 weight percent methyl iodide, less than about 8 weight % water and about 0.5 to about 30 weight percent methyl acetate. The crude acetic acid is flashed and further purified. 1226-. (canceled)227. A continuous process for the production of acetic acid comprising: (i) a rhodium catalyst metal;', '(ii) an iodide promoter; and', '(iii) a metallic co-catalyst composition including a metal selected from the group consisting of transition metals, zinc, beryllium, indium, tin, strontium, barium, and mixtures thereof, and optionally further including a heteropoly acid (HPA); and, '(a) reacting a compound selected from the group consisting of methanol and reactive derivatives thereof, with carbon monoxide to produce acetic acid in an aqueous reaction mixture, the reaction being carried out while maintaining a concentration of water in the reaction mixture of from 0.1 wt % up to about 8 wt %, the reaction also being carried out in the presence of a homogeneous rhodium-based catalyst system comprising(b) recovering acetic acid from the reaction mixture;wherein the process is controlled and the metallic co-catalyst composition is selected so that it is effective as a stabilizer and a rate promoter, and the reaction mixture contains substantially less than a theoretically equivalent inorganic iodide content corresponding to the presence of the metallic co-catalyst composition.228. The process according to claim 227 , wherein the amount of inorganic iodide present is less than 60% of the theoretically equivalent inorganic iodide content corresponding to the presence of the metallic co-catalyst composition.229. The process according to claim 227 , ...

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Номер записи: 23
27-06-2013 дата публикации

METHOD FOR MANUFACTURING POLYMER-GRADE BIO-BASED ACRYLIC ACID FROM GLYCEROL

Номер: US20130165690A1
Автор: Fauconet Michel, Tlili Nabil
Принадлежит: Arkema France

The present invention relates to a process for the manufacture of hioresourced acrylic acid of polymer grade having a content by weight of acrylic acid greater than 99% and the following contents of impurities: protoanemonin less than 5 ppm, total aldehydes less than 10 ppm, maleic anhydride less than 30 ppm, nonphenolic polymerization inhibitors less than 10 ppm, and a content by weight of C such that the C/C ratio is greater than 0.8×10. 1. A process for the manufacture of hioresourced acrylic acid of polymer grade , from glycerol , said polymer grade comprising by weight , acrylic acid in an amount greater than 99% and protoanemonin in an amount less than 5 ppm , aldehydes in an amount less than 10 ppm , maleic anhydride in an amount less than 30 ppm , nonphenolic polymerization inhibitors in an amount less than 10 ppm , and a content by weight of C such that the C/C ratio is greater than 0.8×10 , the process comprising the following stages:i) dehydration of the glycerol to produce acrolein,ii) oxidation of the acrolein to produce acrylic acid,iii) extraction of the acrylic acid present in effluent from the oxidation stage ii) by absorption. in a column operating countercurrentwise using hydrophobic heavy solvent,iv) separation by topping a distillation of a liquid phase resulting from stage (iii) of a light fraction comprising water and residual light compounds, and of a heavy fraction comprising acrylic acid in solution in the hydrophobic heavy solvent,v) distillation, of the heavy fraction resulting from (iv) comprising the acrylic acid in solution with separation, at the bottom, of the hydrophobic heavy solvent and, at the top, of the acrylic acid fraction comprising intermediate impurities and optionally traces of solvent, the heavy fraction resulting from this stage (v), essentially composed of the solvent, being recycled in stage (iii), optionally after a purification treatment,vi) distillation of acrylic acid solution from the top fraction resulting from ...

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Номер записи: 24
04-07-2013 дата публикации

PROCESS FOR PRODUCING A RINGLIKE OXIDIC SHAPED BODY

Номер: US20130172577A1
Автор: Borchert Holger, EGER Knut, Faust Jens Uwe, Mueller-Engel Klaus Joachim, Raichle Andreas, Streibert Ralf
Принадлежит: BASF SE

A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone. 1. A ringlike oxidic shaped body obtained by a process comprising the mechanical compaction of a pulverulent aggregate which has been introduced into the fill chamber of a die and is composed of constituents which comprise at least one metal compound which can be converted to a metal oxide by thermal treatment at a temperature of ≧100° C. , or at least one metal oxide , or at least one metal oxide and at least one such metal compound , to give a ringlike shaped precursor body , in which the fill chamber is disposed in a die bore conducted through the die material from the top downward with a vertical bore axis B and is delimited bythe inner wall of the die bore,the upper end face of a lower punch introduced from below along the bore axis B into the die bore so as to be liftable and lowerable, on which the pulverulent aggregate introduced into the fill chamber rests,the lower end face, disposed along the bore axis B at an axial starting distance A above the upper end face of the lower punch, of an upper punch mounted so as to be liftable and lowerable along the bore axis B, whose lower end face is in contact with the pulverulent aggregate introduced into the fill chamber from above, andthe outer face of a center pin MF conducted from the bottom upward in the die bore along the bore axis B from the geometric center of the upper end face of the lower punch, said center pin MF extending at least up to the geometric center of the lower end face of the upper punch,the process comprising reducing the axial starting distance A of the two end faces along the bore axis B to an axial end distance E predefined for the compaction by lowering the upper punch while maintaining the position of the lower punch or additionally lifting the lower punch, ...

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Номер записи: 25
04-07-2013 дата публикации

PRODUCTION OF ACETIC ACID WITH HIGH CONVERSION RATE

Номер: US20130172614A1
Автор: Hokkanen Brian W., Nutt Michael O., Pan Tianshu, Shaver Ronald D., Torrence G. Paull
Принадлежит: Celanese International Corporation

A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid. 1. A process for producing acetic acid , comprisingreacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product;separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; andreacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.2. The process of claim 1 , wherein a product stream exiting the second reactor comprises less than 40 mol % carbon monoxide.3. The process of claim 1 , wherein the overall conversion of carbon monoxide is greater than 90%.4. The process of claim 1 , wherein the at least one derivative stream comprising residual carbon monoxide claim 1 , comprises:from 10 mol % to 95 mol % carbon monoxide; andfrom 5 mol % to 90 mol % at least one of methanol and a methanol derivative.5. The process of claim 1 , wherein the metal catalyst comprises a solid catalyst.6. The process of claim 5 , wherein the second reactor comprises a fixed bed reactor and the fixed bed reactor comprises the solid catalyst disposed in a catalyst bed.7. The process of claim 5 , wherein the second reactor comprises a trickle bed reactor and the trickle bed ...

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Номер записи: 26
11-07-2013 дата публикации

HYDROGEN TREATMENT OF IMPURE TALL OIL FOR THE PRODUCTION OF AROMATIC MONOMERS

Номер: US20130178650A1
Автор: Harlin Ali, Penttinen Tapani, Rasanen Jari
Принадлежит: STORA ENSO OYJ

A method of manufacturing aromatic hydrocarbons, which are suitable for the production of terephthalic acid, from tall oil-based raw material. According to the invention, the raw material that contains tall oil or its fraction is catalytically deoxygenated with hydrogen, and one or more aromatic hydrocarbons that can be converted into terephthalic acid are separated from the deoxygenated reaction yield. The deoxygenation catalyst is a NiMo catalyst and, in addition, a cracking catalyst can be used, such as an acidic zeolite catalyst. The separated hydrocarbon can be p-xylene, o-xylene or p-cymene. According to the invention, these can be converted by oxidation and, when needed, by a re-arrangement reaction into terephthalic acid that is suitable for the source material of the manufacture of bio-based polyethylene terephthalate. 120-. (canceled)21. A method of manufacturing aromatic hydrocarbons from a tall oil-based raw material , the method comprising:feeding, into a fixed catalyst bed, hydrogen gas and a bio oil, which consists of 2-90% of tall oil fatty acids, 2-98% of tall oil resin acids and, optionally, other vegetable oils;catalytically deoxygenating the bio oil in the bed with hydrogen;cooling the flow exiting the bed, and dividing the flow into a hydrocarbon-bearing liquid phase and a gas phase; andrecovering one or more aromatic hydrocarbons selected from a group comprising o-xylene, m-xylene, p-xylene and a cymene, such as p-cymene, from the hydrocarbon-bearing liquid phase.22. The method according to claim 21 , wherein the bio oil contains at least 25% of tall oil resin acids.23. The method according to claim 21 , wherein the bio oil has been separated from crude tall oil by distillation.24. The method according to claim 21 , wherein a deoxygenation catalyst and a cracking catalyst are used claim 21 , which are different from each other and located sequentially apart from each other in the catalyst bed that is formed by a solid bed material.25. The ...

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Номер записи: 27
18-07-2013 дата публикации

Production of Acetic Acid with Enhanced Catalyst Stability

Номер: US20130184491A1
Автор: Kalck Philippe Joseph, Le Berre Carole Marie, Nguyen Duc Hanh, Serp Phillipe Gilles, Torrence G. Paull
Принадлежит: Celanese International Corporation

Processes for the production of acetic acid by carbonylation of methanol and reactive derivatives thereof in a liquid phase reaction medium, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer/co-promoter comprising a dissymmetric phosphonium cation. 1. A process for producing acetic acid , the process comprising the steps of:{'sub': 1', '2', '3', '4', '1', '2', '3', '4, 'sup': '+', 'reacting carbon monoxide in the liquid phase with at least one reactant selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof in a reactor containing a reaction medium to produce a reaction product comprising acetic acid, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer comprising a dissymmetric phosphonium cation [PRRRR] as an iodide salt, wherein R, R, R, and Rare each independently a substituted or unsubstituted alkyl or cycloalkyl; and'}maintaining the reaction medium at a total iodide ion concentration of from 2 to 35 wt. % and an alkyl halide promoter concentration of greater than 1 wt. %, based on the total weight of the reaction medium.2. The process of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare not all the same substituted or unsubstituted alkyl or cycloalkyl group.3. The process of claim 1 , wherein the phosphonium cation is maintained in the reaction medium at a concentration of from 1.5 wt. % to 28 wt. % claim 1 , based on the total weight of the reaction medium.4. The process of claim 1 , wherein the water concentration in the reaction medium is maintained at from 0.1 wt. % to 8 wt. %.5. The process of claim 1 , wherein the process has a carbonylation rate from 10 to 40 mol/l/hr.6. The process of claim 1 , wherein the process has a carbonylation rate from 15 to 20 mol/l/hr.7. The process of claim 1 , wherein the ...

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Номер записи: 28
25-07-2013 дата публикации

Process for the Preparation of Oxidized Phospholipids

Номер: US20130190523A1
Автор: Halperin Gideon, Kovalevski-Ishai Eti
Принадлежит: Vascular Biogenics Ltd.

Novel synthetic routes, which are highly applicable for industrial preparation of therapeutically beneficial oxidized phospholipids are disclosed. Particularly, novel methods for efficiently preparing compounds having a glycerolic backbone and one or more oxidized moieties attached to the glycerolic backbone, which are devoid of column chromatography are disclosed. Further disclosed are novel methods of introducing phosphorous-containing moieties such as phosphate moieties to compounds having glycerolic backbone and intermediates firmed thereby. 1. A method of preparing a compound having a glycerolic backbone and at least one oxidized moiety-containing residue attached to the glycerolic backbone via an ether bond , the method comprising:providing a first compound having a glycerolic backbone and at least one free hydroxyl group;providing a second compound having at least one unsaturated bond and at least one reactive group capable of forming an ether bond with said free hydroxyl group;reacting said first compound and said second compound to thereby obtain a third compound, said third compound having a glycerolic backbone and an unsaturated bond-containing residue being attached to said glycerolic backbone via an ether bond:isolating said third compound. to thereby obtain a purified third compound;reacting said purified third compound with an oxidizing agent, to thereby obtain a fourth compound, said fourth compound having a glycerolic backbone and an oxidized moiety-containing residue attached to said glycerolic backbone via an ether bond; andisolating said fourth compound to thereby obtain a purified fourth compound, thereby obtaining the compound having a glycerolic backbone and at least one oxidized moiety-containing residue attached to said glycerolic backbone via an ether bond,the method being devoid of column chromatography.2. The method of claim 1 , wherein isolating said third compound comprises:collecting said third compound;providing a solution of said ...

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Номер записи: 29
25-07-2013 дата публикации

PROCESS FOR THE MANUFACTURE OF ACETIC ACID

Номер: US20130190531A1
Автор: Fitzpatrick Michael E., Hallinan Noel C., Hearn John D., Patel Miraj S.
Принадлежит:

The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is facilitated and expedited by forming a liquid mixture (D) which has a water content of at most 10% by weight, based on the weight of the liquid mixture, an acetic acid content of at least 10% by weight, based on the weight of the liquid mixture, and a weight ratio of methyl iodide to methyl acetate of at least 1.5:1, and partitioning the liquid mixture at a temperature of from 0 to 35° C. 2. The process of claim 1 , wherein the temperature of the liquid mixture (D) is from 5 to 30° C.3. The process of claim 2 , wherein the temperature of the liquid mixture (D) is at most 27° C.4. The process of claim 1 , wherein the water present is the liquid mixture is innate water.5. The process of claim 4 , wherein the liquid mixture (D) comprises from 0.1 to 8.5% by weight of water.6. The process of claim 5 , wherein the liquid mixture (D) comprises at most 7.5% by weight of water.7. The process of claim 1 , wherein the liquid mixture (D) comprises at least 15% by weight of acetic acid.8. The process of claim 1 , wherein the weight ratio of methyl iodide to methyl acetate in the liquid mixture (D) is at least 2:1.9. The process of claim 1 , wherein the liquid mixture (D) comprises at most 35% by weight of methyl acetate.10. The process of claim 9 , wherein the liquid mixture (D) comprises at least 30% by weight of methyl iodide.12. The process of claim 1 , wherein the weight ratio of methyl iodide to methyl acetate of the liquid mixture (D) is provided by adding to Cextraneous or innate methyl iodide.13. The process of claim 1 , further comprising separating the partitioned phases Dand Dto obtain an aqueous stream (E) and an organic stream (E) claim 1 , and providing the weight ratio of methyl iodide to methyl acetate of D by directly or indirectly recycling at least a part of the organic stream (E) to step ( ...

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Номер записи: 30
08-08-2013 дата публикации

"OXIDATION OF HYDROCARBONS"

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

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

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Номер записи: 31
08-08-2013 дата публикации

Method for producing lactic acids from carbohydrate-containing raw material

Номер: US20130204036A1
Автор: Atsushi Mori, Hideaki Tsuneki, Kazuhiko Satoh, Kenichi Tominaga, Shigeru Shimada, Yoshiaki Hirano
Принадлежит: National Institute of Advanced Industrial Science and Technology AIST, NIPPON SHOKUBAI CO LTD

An alternative method for efficiently producing lactic acids from a carbohydrate-containing raw material such as cellulose is provided. The method for producing lactic acid and/or lactic acid ester comprises performing heat treatment on a carbohydrate-containing raw material in a solvent containing a catalyst, wherein the catalyst is at least one type of compound selected from the group consisting of a tin compound, an indium compound, and a rhenium compound, and the solvent contains water and/or alcohol.

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Номер записи: 32
08-08-2013 дата публикации

Process for Producing Ethanol Using a Molar Excess of Hydrogen

Номер: US20130204049A1
Автор: David Lee, Heiko Weiner, Radmila Jevtic, Victor J. Johnston, Zhenhua Zhou
Принадлежит: Celanese International Corp

The present invention relates to a process for the production of ethanol using a molar excess of hydrogen. A mixed feed of acetic acid and ethyl acetate is fed to a reactor to be converted to ethanol. Hydrogen flow is increased to avoid a negative conversion of ethyl acetate.

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Номер записи: 33
15-08-2013 дата публикации

Oxidation of Alkylbenzenes

Номер: US20130211036A1
Автор: Becker Christopher L., Dakka Jihad M., Mozeleski Edmund J., Smith Charles Morris, Zushma Stephen
Принадлежит: ExxonMobil Chemical Company - Law Technology

A process for oxidizing a composition comprising contacting an alkylbenzene of the general formula (I): 2. The process of claim 1 , and further comprising:(c) cleaving at least a portion of the alkylbenzene hydroperoxide produced by the contacting step (b) to produce phenol and cyclohexanone.3. The process of claim 2 , wherein at least a portion of the phenol present in the feed in the composition is provided from a recycle stream from the contacting step (b) and/or the cleaving step (c).4. The process of claim 1 , wherein the composition comprises from about 0.1 wt % to about 1 wt % of phenol based upon total weight of the composition.5. The process of claim 1 , wherein the composition comprises from about 0.15 wt % to about 0.5 wt % of phenol based upon total weight of the composition.6. The process of claim 1 , wherein the alkylbenzene is selected from cumene claim 1 , sec-butylbenzene claim 1 , cyclohexylbenzene and mixtures thereof.8. The process of claim 1 , wherein the cyclic imide comprises N-hydroxyphthalimide.9. The process of claim 1 , wherein the catalyst containing a cyclic imide having the general formula (II) is effective to remove at least a portion of the phenol.10. The process of claim 1 , wherein the cyclic imide is present in an amount of between 0.05 wt % and 5 wt % of the composition.11. The process of claim 1 , wherein the contacting step (b) is conducted at a temperature of between 90° C. and 150° C.12. The process of claim 1 , wherein the contacting step (b) is conducted at a temperature of between 105° C. and 120° C.13. The process of claim 1 , wherein the contacting step (b) is conducted at a pressure between 15 kPa and 500 kPa.14. (canceled)15. The process of claim 2 , wherein at least a portion of the phenol produced in the cleaving step (c) is converted to one or more of a phenolic resin claim 2 , bisphenol A claim 2 , ε-caprolactam claim 2 , an adipic acid claim 2 , or a plasticizer.16. The process of claim 2 , wherein at least a ...

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Номер записи: 34
15-08-2013 дата публикации

DIRECT ACTIVATION OF METHANE

Номер: US20130211137A1
Автор: ABOU-HAMAD Edy, Basset Jean-Marie, CAPS Valerie, PELLETIER Jeremie, SUN Miao
Принадлежит: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Heteropolyacids (HPAs) can activate methane at ambient temperature (e.g., 20° C.) and atmospheric pressure, and transform methane to acetic acid, in the absence of any noble metal such as Pd). The HPAs can be, for example, those with Keggin structure: HSiWO, HPWO, HSiMoO, or HPMoO, can be when supported on silica. 1. A method for converting methane to acetic acid comprising contacting methane with a heteropolyacid.2. The method of claim 1 , wherein conversion takes place at a temperature no greater than 100° C.3. The method of any of the preceding claims claim 1 , wherein conversion takes place at ambient temperature.4. The method of any of the preceding claims claim 1 , wherein conversion takes place at a pressure no greater than 30 bar.5. The method of any of the preceding claims claim 1 , wherein conversion takes place at atmospheric pressure.6. The method of any of the preceding claims claim 1 , wherein the heteropolyacid is substantially free of noble metals.7. The method of any of the preceding claims claim 1 , further comprising heating the heteropolyacid after contacting claim 1 , thereby releasing acetic acid.8. The method of any of the preceding claims claim 1 , wherein the heteropolyacid includes HSiWO claim 1 , HPWO claim 1 , HSiMoO claim 1 , or HPMoO.9. The method of any of the preceding claims claim 1 , wherein the heteropolyacid is associated with a solid support.10. The method of any of the preceding claims claim 1 , wherein the solid support includes a silicon oxide.11. The method of any of the preceding claims claim 1 , further comprising separating the acetic acid from the heteropolyacid.12. The method of any of the preceding claims claim 1 , further comprising contacting the heteropolyacid with an oxidant. This application claims priority to U.S. Patent Application No. 61/593,601, filed Feb. 1, 2012, which is hereby incorporated by reference in its entirety.This invention relates to direct activation of methane to products, such as, acetic acid. ...

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Номер записи: 35
22-08-2013 дата публикации

Catalyst and Method for Producing Acrylic Acid

Номер: US20130217915A1
Автор: Kobayashi Tomoaki, Kurakami Tatsuhiko, Matsumoto Susumu, Nakazawa Yuta
Принадлежит: NIPPONKAYAKU KABUSHIKIKAISHA

The present invention relates to a method for producing acrylic acid through vapor-phase contact oxidation of acrolein, wherein a reactor tube is divided into at least two catalyst layers, and catalysts having a higher activity are charged in the reactor tube sequentially toward an outlet port side from a material source gas inlet port side for a reaction therein to give acrylic acid, and wherein a catalyst activity-controlling method is a method comprising: a step of mixing a molybdenum-containing compound, a vanadium-containing compound, a copper-containing compound and an antimony-containing compound with water, then drying and calcining a resulting mixture, in which a catalytically-active element composition is kept constant but material source compounds are made to vary in type to give composite metal oxides having a different activity. 1. A method for producing acrylic acid through vapor-phase contact oxidation of acrolein , wherein a reactor tube is divided into at least two catalyst layers , and catalysts having a higher activity are charged in the reactor tube sequentially toward an outlet port side from a material source gas inlet port side for a reaction therein to give acrylic acid , and wherein a catalyst activity-controlling method is a method comprising:a step of mixing a molybdenum-containing compound, a vanadium-containing compound, a copper-containing compound and an antimony-containing compound with water, then drying and calcining a resulting mixture, in which a catalytically-active element composition is kept constant but material source compounds are made to vary in type to give composite metal oxides having a different activity.2. The method for producing acrylic acid as claimed in claim 1 ,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein a coated catalyst prepared by making the composite metal oxide of supported by a carrier is used as the catalyst, and'}a supporting ratio of the coated catalyst is varied to control the catalyst ...

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Номер записи: 36
05-09-2013 дата публикации

Electrochemical Co-Production of a Glycol and an Alkene Employing Recycled Halide

Номер: US20130230435A1
Автор: Emily Barton Cole, Jerry J. Kaczur, Kyle Teamey
Принадлежит: Liquid Light Inc

The present disclosure is a method and system for electrochemically co-producing a first product and a second product. The system may include a first electrochemical cell, a first reactor, a second electrochemical cell, at least one second reactor, and at least one third reactor. The method and system for for co-producing a first product and a second product may include co-producing a glycol and an alkene employing a recycled halide.

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Номер записи: 37
19-09-2013 дата публикации

Hydrogenation of Mixed Oxygenate Stream to Produce Alcohol

Номер: US20130245131A1
Автор: Heiko Weiner, Radmila Jevtic, Victor J. Johnston, Zhenhua Zhou
Принадлежит: Celanese International Corp

The present invention relates to processes for the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of a mixed oxygenate stream comprising ethyl acetate and acetaldehyde. The crude ethanol product is separated in at least one distillation column to product ethanol. The mixed oxygenate stream may be obtained from syngas.

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Номер записи: 38
19-09-2013 дата публикации

METHODS OF PRODUCING PARA-XYLENE AND TEREPHTHALIC ACID

Номер: US20130245316A1
Автор: Bissell John, BRUNE Katherine, Dumitrascu Adina, Foster Marc, Hucul Dennis A., Masuno Makoto N., Smith Patrick B., Smith Ryan L.
Принадлежит: MICROMIDAS, INC.

The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose, starch, sugar) and ethylene in the presence of a catalyst. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF), which may be converted into para-xylene by cycloaddition of ethylene to DMF. Para-xylene can then be oxidized to form terephthalic acid. 1. A method for producing para-xylene , comprising:a) providing 2,5-hexanedione;b) providing ethylene;c) providing a catalyst;d) combining the 2,5-hexanedione, the ethylene, and the catalyst to form a reaction mixture; ande) producing para-xylene from at least a portion of the 2,5-hexanedione in the reaction mixture.2. The method of claim 1 , further comprising isolating para-xylene from the reaction mixture.3. The method of claim 1 , further comprising providing a solvent system claim 1 , and combining the 2 claim 1 ,5-hexanedione claim 1 , the ethylene claim 1 , the catalyst claim 1 , and the solvent system to form the reaction mixture.4. The method of claim 3 , wherein the solvent system comprises an aprotic solvent.5. The method of claim 3 , wherein the solvent system comprises an ether solvent.6. The method of claim 3 , wherein the solvent system comprises a C1-C20 aliphatic solvent claim 3 , a C6-C20 aromatic solvent claim 3 , an alkyl phenyl solvent claim 3 , a C2-C20 ether claim 3 , a C2-C20 ester claim 3 , a C1-C20 alcohol claim 3 , a C2-C20 ketone claim 3 , or any combinations or mixtures thereof.7. The method of claim 3 , wherein the solvent system comprises dimethylacetamide claim 3 , acetonitrile claim 3 , sulfolane claim 3 , dioxane claim 3 , dioxane claim 3 , dimethyl ether claim 3 , diethyl ether claim 3 , glycol dimethyl ether (monoglyme) claim 3 , ethylene glycol diethyl ether (ethyl glyme) claim 3 , diethylene glycol dimethyl ether (diglyme) claim 3 , diethylene glycol diethyl ether (ethyl digylme) claim 3 , triethylene ...

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Номер записи: 39
26-09-2013 дата публикации

PROCESS AND INTERMEDIATES FOR PREPARING INTEGRASE INHIBITORS

Номер: US20130253200A1
Автор: Dowdy Eric, Pfeiffer Steven
Принадлежит: Gilead Sciences, Inc.

The invention provides synthetic processes and synthetic intermediates that can be used to prepare 4-oxoquinolone compounds having useful integrase inhibiting properties. 128-. (canceled) This application claims priority under 35 U.S.C. 119(e) from U.S. Provisional Patent Application No. 60/971,395, filed 11 Sep. 2007, the contents of which are incorporated herein in their entirety.International Patent Application Publication Number WO 2004/046115 provides certain 4-oxoquinolone compounds that are useful as HIV integrase inhibitors. The compounds are reported to be useful as anti-HIV agents.International Patent Application Publication Number WO 2005/113508 provides certain specific crystalline forms of one of these 4-oxoquinolone compounds, 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinolone-3-carboxylic acid. The specific crystalline forms are reported to have superior physical and chemical stability compared to other physical forms of the compound.There is currently a need for improved methods for preparing the 4-oxoquinolone compounds reported in International Patent Application Publication Number WO 2004/046115 and in International Patent Application Publication Number WO 2005/113508. In particular, there is a need for new synthetic methods that are simpler or less expensive to carry out, that provide an increased yield, or that eliminate the use of toxic or costly reagents.The present invention provides new synthetic processes and synthetic intermediates that are useful for preparing the 4-oxoquinolone compounds reported in International Patent Application Publication Number WO 2004/046115 and in International Patent Application Publication Number WO 2005/113508.Accordingly, in one embodiment, the present invention provides a method for preparing a compound of formula 10or a pharmaceutically acceptable salt thereof, in which a compound of formula 4or a salt thereof is prepared and converted into a compound of ...

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Номер записи: 40
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: 41
03-10-2013 дата публикации

HYDROCARBOXYLATION OF FORMALDEHYDE IN THE PRESENCE OF A HIGHER ORDER CARBOXYLIC ACID AND HETEROGENEOUS CATALYST

Номер: US20130261333A1
Автор: Barnicki Scott Donald, Falling Stephen Neal, Hembre Robert Thomas, Janka Mesfin Ejerssa, Moran Kelley Margaret
Принадлежит: EASTMAN CHEMICAL COMPANY

Disclosed is a process for the production and purification of glycolic acid or glycolic acid derivatives by the carbonylation of formaldehyde in the presence of a solid acid catalyst and a carboxylic acid. This invention discloses hydrocarboxylations and corresponding glycolic acid separations wherein the glycolic acid stream is readily removed from the carboxylic acid and the carboxylic acid is recycled. 1. A process for the preparation of glycolic acid , comprising(A) feeding carbon monoxide, aqueous formaldehyde, and a carboxylic acid comprising 3-6 carbon atoms to a hydrocarboxylation reaction zone comprising a solid acid catalyst to produce an effluent comprising esters of glycolic and carboxylic acids;(B) hydrolyzing said effluent to produce a hydrolyzed mixture comprising glycolic acid and said carboxylic acid;(C) recovering said carboxylic acid from said hydrolyzed mixture by extracting said hydrolyzed mixture with a hydrophobic solvent selected from at least one of the group consisting of esters having from 4 to 20 carbon atoms, ethers having from 4 to 20 carbon atoms, ketones having from 4 to 20 carbon atoms, and hydrocarbons having from 6 to 20 carbon atoms to form an aqueous raffinate phase comprising a major amount of said glycolic acid contained in said hydrolyzed mixture and an organic extract phase comprising a major amount of said carboxylic acid contained in said hydrolyzed mixture; and(D) separating said aqueous raffinate phase and said organic extract phase.2. The process according to claim 1 , wherein said feeding of said carboxylic acid and said aqueous formaldehyde in step (A) occurs at a molar ratio of carboxylic acid:formaldehyde of from 0.5:1 to 6:1.3. The process according to claim 1 , wherein said feeding of said carboxylic acid and said aqueous formaldehyde in step (A) occurs at a molar ratio of carboxylic acid:formaldehyde of from 0.5:1 to 4:1.4. The process according to claim 1 , wherein said feeding of said carboxylic acid and said ...

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Номер записи: 42
03-10-2013 дата публикации

PROCESS FOR PRODUCING ACETIC ACID

Номер: US20130261334A1
Автор: Miura Hiroyuki, Nakajima Hidehiko, Saito Ryuji, Shimizu Masahiko, Ueno Takashi
Принадлежит: Daicel Corporation

A process for producing acetic acid by: a reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, an ionic iodide, and methyl iodide in a carbonylation reactor, a flash distillation step for continuously feeding a flasher with a reaction mixture from the reactor and evaporating a volatile component at least containing product acetic acid, methyl acetate, and methyl iodide by flash distillation to separate the volatile component and a liquid catalyst mixture at least containing the metal catalyst and the ionic iodide, and an acetic acid collection step for separating a stream containing acetic acid from the volatile component to collect acetic acid; wherein, in the flash distillation step, the flash distillation is conducted under the condition that the concentration of methyl acetate in the liquid catalyst mixture is not less than 0.6% by weight. 112.-. (canceled)13. A process for producing acetic acid , which comprisesa reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, an ionic iodide, and methyl iodide in a carbonylation reactor,a flash distillation step for continuously feeding a flasher with a reaction mixture from the reactor and evaporating a volatile component at least containing product acetic acid, methyl acetate, and methyl iodide by flash distillation to separate the volatile component and a liquid catalyst mixture at least containing the metal catalyst and the ionic iodide, andan acetic acid collection step for separating a stream containing acetic acid from the volatile component to collect acetic acid,wherein the metal catalyst comprises a rhodium catalyst, andin the flash distillation step, the flash distillation is conducted under the condition that the concentration of methyl acetate in the liquid catalyst mixture is not less than 0.6% by weight and the concentration ...

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Номер записи: 43
17-10-2013 дата публикации

Triazolium Carbene Catalysts and Stereoselective Bond Forming Reactions Thereof

Номер: US20130274470A1
Автор: Rovis Tomislav, Vora Harit U.
Принадлежит:

Provided herein are triazolium carbine catalysts useful for asymmetric hydration, fluorination, and deuteration, and processes for their preparation. Also provided are synthetic reactions in which these catalysts are used, in particular, in stereoselective formation of carbon-chlorine, carbon-hydrogen, carbon-fluorine, and carbon-deuterium bonds. 2. The compound of wherein the counter ion X is selected from the group consisting of BF claim 1 , Cl claim 1 , PF claim 1 , BPh claim 1 , and RBF.3. A composition comprising a compound of formula (I) according to claim 1 , a proton donor claim 1 , and a base.5. The method of claim 4 , wherein the aldehyde is an enal.6. The method of claim 4 , wherein the aldehyde is a α claim 4 ,α-dichloro aldehyde or an α-chloro α-fluoro aldehyde.8. The method of wherein claim 4 , the asymmetric hydration results in an enantiomeric excess of the respective α-deuterio carboxylic acid claim 4 , α-deuterio-α-chloro carboxylic acid or α-deuterio-α-fluoro carboxylic acid.9. The method of further comprising contacting the aldehyde with an additive selected from phase transfer reagents claim 4 , salts claim 4 , and brine.11. The method of claim 10 , wherein the aldehyde is an enal.12. The method of claim 10 , wherein the aldehyde is a α claim 10 ,α-dichloro aldehyde or an α-chloro α-fluoro aldehyde.14. The method of claim 10 , wherein the drug analog is an α-fluoroenal and the asymmetric hydration forms an α-fluoro carboxylic acid.15. The method of claim 10 , wherein the asymmetric hydration results in an enantiomeric excess of the respective drug analog.17. The method of claim 16 , wherein the aldehyde is an enal.18. The method of claim 16 , wherein the aldehyde is a α claim 16 ,α-dichloro aldehyde or an α-chloro α-fluoro aldehyde.20. The method of claim 4 , wherein the base is selected from the group consisting of KCO claim 4 , NaHCO claim 4 , KHPO claim 4 , NaCO claim 4 , KPO claim 4 , EtN claim 4 , DIPEA claim 4 , DBU claim 4 , DBN claim 4 , ...

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Номер записи: 44
24-10-2013 дата публикации

OPTIMIZED LIQUID-PHASE OXIDATION

Номер: US20130280141A1
Автор: de VREEDE Marcel, Lin Robert, Partin Lee Reynolds, STRASSER Wayne Scott, WONDERS Alan George
Принадлежит:

Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process. 115-. (canceled)16. In a bubble column reactor for reacting a predominately gas-phase stream and a predominately liquid-phase stream in a multi-phase reaction medium contained in a reaction zone , wherein said bubble column reactor includes a primary pressure-containing vessel shell having one or more upright sidewalls and presenting one or more upright inner surfaces that define at least a portion of said reaction zone , the improvement comprising:one or more internal members disposed in said reaction zone and presenting one or more upright outer surfaces for contacting said reaction medium, wherein the total upright outer surface area of said internal members accounts for at least about 10 percent of the combined upright inner surface area of said sidewalls and said internal members; andone or more gas openings for introducing said gas-phase stream into said reaction zone, wherein at least a substantially portion of said gas openings are located below a substantial portion of said internal members in a manner such that the natural buoyancy of said gas-phase stream in said reaction medium causes at least a portion of the gas-phase stream to rise through the reaction medium adjacent at least a portion of substantially all of said upright outer surfaces of said internal members.17. The bubble column reactor of wherein the total upright outer surface area of said internal members ...

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Номер записи: 45
24-10-2013 дата публикации

CONTINUOUS METHOD FOR THE CARBONYLATION OF ALCOHOLS, IN PARTICULAR OF PHENYL ALCOHOLS

Номер: US20130281729A1
Автор: De Panthou Fabrice, Marie Sabrina, Pilia Raimondo, Trani Alexandre
Принадлежит:

Organic synthesis, i.e., the synthesis of carboxylic acids by direct carbonylation of alcohols in a continuous process, and more particularly, the synthesis of phenylalkylic acids, which are synthesis intermediates useful in pharmaceutical chemistry, by direct carbonylation of phenyl alkyl alcohols. 110-. (canceled)13. The method of claim 11 , wherein the target acid corresponds to a formula: R—(RR)C—COOH (5).14. The method of claim 11 , wherein the target acid corresponds to a formula: ZZC—(RR)C—COOH (6).15. The method of claim 11 , wherein Rand Rare selected from the group consisting of: H; F claim 11 , Cl claim 11 , Br claim 11 , I claim 11 , an alkyl radical claim 11 , and an aryl radical.16. The method of claim 11 , wherein Rand Rtogether represent a cycloalkyl of the type (CH) claim 11 , substituted or unsubstituted claim 11 , where n is equal to 2 claim 11 , 3 claim 11 , 4 claim 11 , or 5.17. The method of claim 11 , wherein Zand Zare selected from the group consisting of: H; F claim 11 , Cl claim 11 , Br claim 11 , I claim 11 , an alkyl radical claim 11 , and an aryl radical.18. The method of claim 17 , wherein the structural element (ZZ)C (represented by the symbol R) is a benzene cyclic compound or a mono- or poly-substituted phenyl radical with one or several groups selected from the group consisting of H; F claim 17 , Cl claim 17 , Br claim 17 , I claim 17 , an alkyl radical claim 17 , one or several atoms of halogen claim 17 , methyl groups claim 17 , ethyl groups claim 17 , propyl groups claim 17 , butyl group claim 17 , and one or more radicals of CFor CF.19. The method of claim 11 , wherein the structural element (ZZ) represent an cycloalkyl of the type (CH) claim 11 , substituted or unsubstituted claim 11 , where n is equal to 2 claim 11 , 3 claim 11 , 4 claim 11 , or 5.20. The method of claim 11 , wherein said strong acid comprises is selected from the group consisting of: perchloric acid claim 11 , trifluoroacetic acid claim 11 , fluoroantimonic ...

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Номер записи: 46
24-10-2013 дата публикации

PROCESS FOR PRODUCING ACETIC ACID

Номер: US20130281735A1
Автор: Miura Hiroyuki, Saito Ryuji, Shimizu Masahiko
Принадлежит: Daicel Corporation

Acetic acid is produced while inhibiting increased concentrations of hydrogen iodide and acetic acid in an acetaldehyde distillation column. 1. A process for producing acetic acid , which comprisesa reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, a halide salt, and methyl iodide in a carbonylation reactor,a flash evaporation step for continuously feeding a flasher with a reaction mixture from the reactor to separate a volatile component (2A) containing product acetic acid, methyl acetate, methyl iodide and water, and a low-volatile component (2B) containing the metal catalyst and the halide salt,an acetic acid collection step for feeding a distillation column with the volatile component (2A), and separating an overhead (3A) containing methyl iodide, acetic acid, methyl acetate, water, by-product acetaldehyde, and hydrogen iodide, and a stream (3B) containing acetic acid to collect acetic acid, andan acetaldehyde separation step for feeding an acetaldehyde distillation column with at least part of the overhead (3A) and distilling a liquid object to be treated containing the overhead (3A) to separate a lower boiling point component (4A) containing acetaldehyde and a higher boiling point component (4B),wherein, in the acetaldehyde separation step, the liquid object contains at least one methanol source selected from the group consisting of methanol and dimethyl ether in a concentration of 0.1 to 50% by weight.2. A process according to claim 1 , wherein claim 1 , in the liquid object claim 1 , the proportion of methyl iodide is 1 to 98% by weight claim 1 , the proportion of methyl acetate is 0.5 to 50% by weight claim 1 , the proportion of acetic acid is 0.2 to 50% by weight claim 1 , the proportion of water is 0.05 to 95% by weight claim 1 , and the proportion of hydrogen iodide is 1 to 1000 ppm on the basis of weight.3. A process according to claim 1 , wherein the ...

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Номер записи: 47
14-11-2013 дата публикации

PROCESS FOR PRODUCING ACETIC ACID

Номер: US20130303800A1
Автор: Shimizu Masahiko
Принадлежит: Daicel Corporation

A process for stably producing high-purity acetic acid while efficiently removing acetaldehyde is provided. 1. A process for producing acetic acid , which comprises:a reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, a halide salt, and methyl iodide in a carbonylation reactor,a flash evaporation step for continuously feeding a flasher with a reaction mixture from the reactor and separating a lower boiling point component (2A) containing product acetic acid and methyl iodide and a higher boiling point component (2B) containing the metal catalyst and the halide salt,an acetic acid collection step for continuously feeding a distillation column with the lower boiling point component (2A), and separating a lower boiling point component (3A) containing methyl iodide and by-product acetaldehyde and a stream (3B) containing acetic acid to collect acetic acid,a condensation step for condensing and temporarily holding the lower boiling point component (3A) in a decanter and discharging the lower boiling point component (3A) from the decanter, anda separation and recycling step for separating the lower boiling point component (3A) discharged from the decanter into acetaldehyde and a liquid residue and recycling the liquid residue to a step from the reaction step to the acetaldehyde-separation step,wherein in the condensation step, the amount of the lower boiling point component (3A) to be held is adjusted or controlled based on a fluctuating flow rate of the lower boiling point component (3A) to be fed to the decanter, and the amount of the lower boiling point component (3A) to be fed to the separation and recycling step is adjusted or controlled.2. A process according to claim 1 , wherein assuming that the average flow rate of the lower boiling point component (3A) to be fed to the decanter is 100 in terms of liquid volume claim 1 , the flow rate of the lower boiling point component ...

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Номер записи: 48
21-11-2013 дата публикации

Synthesis of peretinoin

Номер: US20130310586A1
Автор: Raphael Beumer
Принадлежит: DSM IP ASSETS BV

The present invention relates to a new and improved synthesis of peretinoin.

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Номер записи: 49
21-11-2013 дата публикации

PROCESS FOR THE PRODUCTION OF METHYL ACETATE/ACETIC ACID

Номер: US20130310599A1
Автор: DITZEL Evert Jan
Принадлежит: BP CHEMICALS LIMITED

A process for the production of methyl acetate and/or acetic acid by contacting a carbon monoxide-containing gas and methanol and/or reactive derivatives thereof with a mordenite loaded with copper and silver loaded by ion-exchange and subsequently regenerating the catalyst. 115-. (canceled)16. A process for the production of at least one of methyl acetate and acetic acid which process comprises contacting in a reactor a carbon monoxide-containing gas and a carbonylatable reactant selected from at least one of methanol and reactive derivatives thereof with a catalyst which comprises a mordenite loaded with copper and silver , the loading of the copper and silver being carried out by ion-exchange of part or all of the cation-exchangeable sites of the mordenite with copper and silver ions , to produce at least one of methyl acetate and acetic acid and subsequently regenerating the catalyst.17. A process according to wherein the loading of copper and silver is carried out onto a mordenite which is in the ammonium form or in the proton form.18. A process according to wherein the loading of copper and silver onto mordenite is carried out by sequential ion-exchange.19. A process according to wherein the mordenite is loaded with copper in an amount in the range 5 to 30 mol % relative to aluminium and silver in an amount in the range 5 to 50 mol % relative to aluminium.20. A process according to wherein the loading of copper and silver onto mordenite is carried out in accordance with the steps:(1) contacting the mordenite with at least one aqueous solution of a metal salt selected from copper and/or silver salts until the mordenite is at or above its level of incipient wetness(2) filtering the contacted mordenite to obtain a solid copper and/or silver loaded mordenite(3) washing the copper and/or silver loaded mordenite with a solvent(4) drying the washed copper and/or silver loaded mordenite(5) where necessary, steps (1) to (5) are repeated so as to obtain a mordenite ...

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Номер записи: 50
21-11-2013 дата публикации

Hydrocarbon Conversion Process

Номер: US20130310601A1
Автор: Frank Hershkowitz, Gary D. Mohr, Jonathan M. McConnachie, Paul F. Keusenkothen
Принадлежит: ExxonMobil Chemical Patents Inc

The invention relates to processes for converting hydrocarbons to phthalic acids such as terephthalic acid. The invention also relates to polymerizing phthalic acid derivatives to produce, e.g., synthetic fibers.

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Номер записи: 51
21-11-2013 дата публикации

PROCESS FOR PRODUCING ACETIC ACID

Номер: US20130310603A1
Автор: Miura Hiroyuki, Saito Ryuji, Shimizu Masahiko
Принадлежит: Daicel Corporation

Acetic acid is produced while inhibiting an increased concentration or production of hydrogen iodide in a carbonylation reactor or corrosion of the carbonylation reactor.

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Номер записи: 52
05-12-2013 дата публикации

PROCESS FOR MANUFACTURING ACROLEIN/ACRYLIC ACID

Номер: US20130324758A1
Автор: Devaux Jean-Francois, Dubois Jean-Luc
Принадлежит: Arkema France

The present invention relates to the selective elimination of propanal in acrolein-rich streams to produce acrolein and/or acrylic acid and/or acrylonitrile and/or methylmercaptopropionaldehyde containing low amount of propanal and/or propionic acid and/or propionitrile. One subject of the present invention is a process for manufacturing acrolein comprising a step of selective elimination of propanal in an acrolein-rich stream in contact with a catalyst comprising at least molybdenum. Another subject of the present invention is a process for manufacturing acrylic acid from glycerol including a step of selective elimination of propanal in an acrolein-rich stream in contact with a catalyst comprising at least molybdenum. 1. Process for manufacturing acrolein characterized in that it comprises selective elimination of propanal in an acrolein-rich stream by passing the said stream in gas phase in the presence of oxygen through a catalyst comprising at least molybdenum and at least one element selected from P , Si , W , Ti , Zr , V , Nb , Ta , Cr , Mn , Fe , Co , Ni , Cu , Zn , Ga , In , Tl , Sn , Ag , As , Ge , B , Bi , La , Ba Sb Te , Ce , Pb.2. Process according to characterized in that the catalyst is chosen from the group consisting of the mixed metal oxides containing at least molybdenum and heteropolyacids containing at least molybdenum.3. Process according to characterized in that the catalyst is one mixed metal oxide containing at least molybdenum.4. Process according to characterized in that the catalyst contains iron molybdate mixed oxide.5. Process according to characterized in that the catalyst is one heteropolyacid containing at least molybdenum.6. Process according to characterized in that the catalyst comprises at least one heteropolyacid containing at least molybdenum in which proton in the heteropolyacid may be partially exchanged by at least one cation selected from elements belonging to Group 1 to 16 of the Periodic Table of elements.8. Process ...

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Номер записи: 53
12-12-2013 дата публикации

PROCESS FOR PREPARING FORMIC ACID

Номер: US20130331607A1
Автор: Fachinetti Giuseppe, HUBER Sabine, Meier Anton, Paciello Rocco, Preti Debora, Schaub Thomas
Принадлежит: BASF SE

A process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a tertiary amine (I), a diamine (II), a polar solvent and a catalyst comprising gold at a pressure of from 0.2 to 30 MPa abs and a temperature of from 0 to 200° C., wherein the catalyst is a heterogeneous catalyst comprising gold. 115-. (canceled)16. A process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a tertiary amine (I) , a diamine (II) , a polar solvent and a catalyst comprising gold at a pressure of from 0.2 to 30 MPa abs and a temperature of from 0 to 200° C. , wherein the catalyst is a heterogeneous catalyst comprising gold.17. The process of claim 16 , wherein the heterogeneous catalyst comprising gold is a supported catalyst.18. The process of claim 17 , wherein the supported heterogeneous catalyst comprises silicon dioxide claim 17 , aluminium oxide claim 17 , zirconium oxide claim 17 , magnesium oxide and/or titanium oxide as support.19. The process of claim 17 , wherein the supported heterogeneous catalyst comprises 0.1 to 20 wt.-% gold based on the total mass of the supported catalyst.20. The process of claim 16 , wherein the tertiary amine (I) comprises at least 12 carbon atoms.21. The process of claim 16 , wherein the tertiary amine (I) is tripentylamine claim 16 , trihexylamine and/or a triheptylamine.23. The process of claim 16 , wherein the diamine (II) is selected from the group consisting of N claim 16 ,N claim 16 ,N′ claim 16 ,N′-tetramethyl-ethane-1 claim 16 ,2-diamine (TMEDA) claim 16 , N claim 16 ,N claim 16 ,N′ claim 16 ,N′-tetramethyl-butane-1 claim 16 ,4-diamine claim 16 , pentamethylenedipiperidine (1 claim 16 ,1′-(1 claim 16 ,5-pentanediyl)bis-piperidine) claim 16 , tetramethylenedipyrrolidine (1 claim 16 ,1′-(1 claim 16 ,4-butanediyl)bis-pyrrolidine) claim 16 , 1 claim 16 ,8-diaza-bicylo[5.4.0]undec-7-ene (DBU) claim 16 , 1 claim 16 ,5-diazabicyclo[4.3.0]non-5-ene (DBN) claim 16 , bicyclo[2.2.2]-1 claim 16 ,4- ...

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Номер записи: 54
09-01-2014 дата публикации

PROCESS FOR PREPARING A PROPIOLIC ACID OR A DERIVATIVE THEREOF

Номер: US20140012000A1
Автор: Goossen Lukas J, Lange Paul P., Manjolinho Costa Filipe, Rodriguez Garrido Nuria
Принадлежит: BASF SE

The invention relates to a process for preparing a propiolic acid or a derivative thereof by reacting a terminal alkyne with carbon dioxide, which comprises performing the reaction in the presence of a base and a copper complex, especially a copper (I) complex having at least one ligand, at least one of the ligands of the copper complex being selected from monodentate ligands which have an aminic or iminic nitrogen atom capable of coordination with copper, and polydentate ligands having at least two atoms or atom groups which are capable of simultaneous coordination with copper and are selected from nitrogen, oxygen, sulfur, phosphorus and carbene carbon. 1: A process for preparing a propiolic acid or a derivative thereof , the process comprising:reacting a terminal alkyne with carbon dioxide in the presence of a base and a copper complex comprising a ligand, whereinthe ligand is a monodentate ligand or a polydentate ligandthe monodentate ligand comprises an amine or imine nitrogen atom, and is capable of coordinating to copper,the polydentate ligand comprises at least two atoms or atom groups, which are capable of coordinating simultaneously to copper, andthe atoms or atom groups are at least one selected from the group consisting of nitrogen, oxygen, sulfur, phosphorus and carbene carbon.2: The process according to claim 1 , wherein the terminal alkyne is a compound of formula:{'br': None, 'sup': 'x', 'R—C≡C—H,'}wherein{'sup': x', 'x1', 'x3', 'x3', 'x4', 'x4', 'x4', 'x4', 'x2, 'sub': '3', 'Ris selected from the group consisting of a hydrogen, a COOR, an alkyl optionally substituted by one or more substituents R, an alkenyl optionally substituted by one or more substituents R, a cycloalkyl optionally substituted by one or more substituents R, a heterocycloalkyl optionally substituted by one or more substituents R, an aryl optionally substituted by one or more substituents R, a hetaryl optionally substituted by one or more substituents R, and a (R)Si,'}{'sup': x1', ...

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Номер записи: 55
09-01-2014 дата публикации

FUNCTIONALIZATION OF ORGANIC MOLECULES USING METAL-ORGANIC FRAMEWORKS (MOFS) AS CATALYSTS

Номер: US20140012039A1
Автор: Czaja Alexander U., Phan Anh Thi Phuong, Yaghi Omar M.
Принадлежит:

The disclosure provides for catalytic multivariate metal organic frameworks and methods of use thereof. 1. A method to replace at least one atom of an organic molecule with another atom or group of atoms by contacting it with a metal organic framework.2. The method of claim 1 , wherein the organic molecule is a hydrocarbon.3. The method of claim 1 , wherein a hydrogen of the organic molecule is replaced with an oxygen containing functional group.4. The method of claim 1 , wherein the method is carried out in the presence of CO.5. The method of claim 1 , wherein the method is carried out in the presence of an oxidant.6. The method of claim 1 , wherein the organic molecule is an alkane that is converted to a carboxylic acid.7. The method of claim 1 , wherein the metal organic framework comprises a metal or a metal ion comprising an alkali metal claim 1 , alkaline earth metal claim 1 , transition metal claim 1 , lanthanoid claim 1 , actinoid claim 1 , metalloid claim 1 , or post transition metal.8. The method of claim 6 , wherein the metal organic framework comprises a metal or a metal ion selected from the group consisting of Li claim 6 , Na claim 6 , K claim 6 , Rb claim 6 , Cs claim 6 , Be claim 6 , Mg claim 6 , Ca claim 6 , Sr claim 6 , Ba claim 6 , Sc claim 6 , Sc claim 6 , Sc claim 6 , Y claim 6 , Y claim 6 , Y claim 6 , Ti claim 6 , Ti claim 6 , Ti claim 6 , Zr claim 6 , Zr claim 6 , Zr claim 6 , Hf claim 6 , Hf claim 6 , V claim 6 , V claim 6 , V claim 6 , V claim 6 , Nb claim 6 , Nb claim 6 , Nb claim 6 , Nb claim 6 , Ta claim 6 , Ta claim 6 , Ta claim 6 , Ta claim 6 , Cr claim 6 , Cr claim 6 , Cr claim 6 , Cr claim 6 , Cr claim 6 , Cr claim 6 , Cr claim 6 , Mo claim 6 , Mo claim 6 , Mo claim 6 , Mo claim 6 , Mo claim 6 , Mo claim 6 , Mo claim 6 , W claim 6 , W claim 6 , W claim 6 , W claim 6 , W claim 6 , W claim 6 , W claim 6 , Mn claim 6 , Mn claim 6 , Mn claim 6 , Mn claim 6 , Mn claim 6 , Mn claim 6 , Mn claim 6 , Re claim 6 , Re claim 6 , Re claim 6 , Re ...

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Номер записи: 56
09-01-2014 дата публикации

Pump Around Reactor for Production of Acetic Acid

Номер: US20140012040A1
Автор: Zinobile Raymond J.
Принадлежит: Celanese International Corporation

The present invention relates to improved processes for the manufacture of acetic acid. A pump around reactor is used to produce additional heat for the production of steam. The pump around reactor receives a portion of the reaction solution produced by the carbonylation reactor and further reacts that portion with additional carbon monoxide and/or reactants. 120-. (canceled)21. A process for producing acetic acid , comprising the steps of:reacting carbon monoxide with at least one reactant in a first reactor containing a reaction medium to produce a reaction solution comprising acetic acid,wherein the at least one reactant is selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof andwherein the reaction medium comprises water, acetic acid, methyl iodide, and a catalyst;separating at least a portion of the reaction solution to form a first heat recovery stream;separating at least a portion of the first heat recovery stream; andintroducing the separated portion of the first heat recovery stream to a second reactor to produce a second heat recovery stream.22. The process of claim 21 , further comprising the step of:introducing the first heat recovery stream to the first reactor.23. The process of claim 21 , wherein the relative amount of acetic acid in the second heat recovery stream is at least 0.5% greater than in the first heat recovery stream.24. A system for producing acetic acid claim 21 , comprising:a first reactor for reacting carbon monoxide, at least one reactant and a reaction medium to produce a first reaction solution comprising acetic acid;a separator for separating the first reaction solution into a plurality of derivative heat recovery streams; anda second reactor for reacting carbon monoxide, the at least one reactant and the reaction medium to produce a second reaction solution comprising acetic acid and for recovering steam and/or heat from at least one of the heat recovery streams,wherein ...

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Номер записи: 57
16-01-2014 дата публикации

PROCESS FOR PREPARING ACRYLIC ACID FROM ETHYLENE OXIDE AND CARBON MONOXIDE

Номер: US20140018570A1
Автор: Brand Raphael Heinrich, Fischer Wolfgang, Hartmann Marco, Mueller-Engel Klaus Joachim, Paciello Rocco, PAZICKY Marek, Raith Christian, Zurowski Peter
Принадлежит: BASF SE

A process for preparing acrylic acid from ethylene oxide and carbon monoxide, in which ethylene oxide is carbonylated in an aprotic solvent with carbon monoxide in the presence of a cobalt catalyst system to give poly-3-hydroxypropionate, the cobalt content in the poly-3-hydroxypropionate formed is reduced with the aid of water and/or an aqueous solution as a precipitation and/or wash liquid, and the poly-3-hydroxypropionate is subsequently split by thermolysis to give acrylic acid. 1. A process for preparing acrylic acid from ethylene oxide and carbon monoxide , the process comprising:converting by carbonylating ethylene oxide dissolved in an aprotic solvent with carbon monoxide at elevated pressure and elevated temperature in the presence of a catalyst system comprising a cobalt source in a reaction zone A to obtain a product mixture A comprising poly-3-hydroxypropionate,removing poly-3-hydroxypropionate from the product mixture A in a separation zone A, andthermolyzing poly-3-hydroxypropionate removed in separation zone A in a thermolysis zone A to form acrylic acid,wherein the removing comprises at least one of:adding water, an aqueous solution, or both, as an aqueous precipitation liquid to a portion of product mixture A, to a total amount of product mixture A, or both, in order to precipitate poly-3-hydroxypropionate presently dissolved in the portion of product mixture A or in the total amount of product mixture A; orwashing poly-3-hydroxypropionate removed from product mixture A in separation zone A with water, with an aqueous solution, or both, as an aqueous wash liquid.2. The process according to claim 1 , wherein the aprotic solvent comprises or is at least one solvent selected from the group consisting of saturated hydrocarbon claim 1 , aromatic hydrocarbon claim 1 , halogenated saturated hydrocarbon claim 1 , halogenated aromatic hydrocarbon claim 1 , an ester of organic acids claim 1 , a ketone claim 1 , a nitrile claim 1 , a diakylamide claim 1 , a ...

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Номер записи: 58
16-01-2014 дата публикации

Eductor-Based Reactor and High Flow Pump Around Loops for Production of Acetic Acid

Номер: US20140018571A1
Автор: Lakin Michael, Rakhe Ashok, Shaver Ronald D., Zinobile Raymond J.
Принадлежит: Celanese International Corporation

Eductor mixers are used to mix the reaction medium in a carbonylation reactor. A portion of the reaction solution withdrawn from the reactor and directed through a pump around loop. The pump around loop is fed back to the reactor through the eductor mixers. In addition, a pump around loop may pass through one or more steam generators and/or heat exchangers. 121.-. (canceled)22. A process for producing acetic acid , comprising the steps of:reacting carbon monoxide with at least one reactant in a eductor-based reactor containing a liquid reaction medium to produce a reaction solution comprising acetic acid, wherein the at least one reactant is selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof, and wherein the liquid reaction medium comprises acetic acid, methyl acetate, methyl iodide, and a catalyst, wherein the eductor-based reactor comprises one or more eductor mixers;withdrawing the reaction solution from the eductor-based reactor;separating a portion of the reaction solution to form a pump around stream; andfeeding a portion of the pump around stream to at least one of the one or more eductor mixers to provide mixing of the reaction medium in the eductor-based reactor.23. The process of claim 22 , further comprising the step of:feeding the remaining portion of the reaction solution withdrawn from the reactor but not separated to form the pump around stream forward to a flasher to produce a crude product and a catalyst recycle stream, wherein the pump around stream is separated prior to the introduction to the flasher.24. The process of claim 23 , wherein the flow rate of the pump around stream is at least 1.2 times greater than the flow rate of the remaining portion of the reaction solution forwarded to the flasher.25. The process of claim 22 , further comprising the step of:passing a portion of the pump around stream through one or more heat exchangers to produce an outflow.26. The process of claim ...

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Номер записи: 59
16-01-2014 дата публикации

PROCESS FOR HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION OF (METH)ACROLEIN TO (METH)ACRYLIC ACID

Номер: US20140018572A1
Автор: Blickhan Nina, Drochner Alfons, Duerr Nadine, Jekewitz Tim, KARPOV Andrey, Menning Nadine, Mueller-Engel Klaus Joachim, Petzold Tina, Rosowski Frank, SCHMIDT Sabine, Vogel Herbert, WELKER-NIEUWOUDT Cathrin Alexandra
Принадлежит: BASF SE

A process for preparing (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein over a multimetal oxide composition which comprises the elements Mo, V and W and is obtained by a hydrothermal preparation route, and the multimetal oxide composition obtainable by this preparation route. 1. A process , comprising heterogeneously catalyzing a partial oxidation of (meth)acrolein to (meth)acrylic acid in the gas phase over a catalytically active multimetal oxide composition of formula (I):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'c', 'f', 'g', 'n, 'sup': 1', '2', '3', '4', '5', '6, 'MoVXXXXXXO\u2003\u2003(I),'}wherein:{'sup': '1', 'Xrepresents W, Nb, Ta, Cr, Ce, or a mixture thereof;'}{'sup': '2', 'Xrepresents Cu, Ni, Co, Fe, Mn, Zn, or a mixture thereof;'}{'sup': '3', 'Xrepresents Sb, Te, Bi, or a mixture thereof;'}{'sup': '4', 'Xrepresents H, one or more alkali metals, or a mixture thereof;'}{'sup': '5', 'Xrepresents one or more alkaline earth metals;'}{'sup': '6', 'Xrepresents Si, Al, Ti, Zr, or a mixture thereof;'}a represents 1 to 6;b represents 0.2 to 8;c represents 0 to 18;d represents 0 to 40;e represents 0 to 4;f represents 0 to 4;g represents 0 to 40;n represents a number determined by the valency and frequency of the elements in the formula (I) other than oxygen;{'sup': '1', 'at least 50 mol % of a total molar amount of elements Xpresent in the multimetal oxide composition of formula (I) is the element W; and'}the multimetal oxide composition of formula (I) is prepared by hydrothermally treating a mixture of sources of elemental constituents in the presence of water in a pressure vessel, such that a newly forming solid is removed as a precursor composition which is converted to the catalytically active multimetal oxide composition of formula (I) by thermal treatment.2. The process according to claim 1 , wherein the catalytically active multimetal oxide composition satisfies formula (II):{'br': None, 'sub': 12', 'a', 'b', ...

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Номер записи: 60
23-01-2014 дата публикации

Synthesis of Lactic Acid and Alkyl Lactate from Carbohydrate-Containing Materials

Номер: US20140024853A1
Автор: Huang Jiaruo, ZHOU XIAOPING
Принадлежит: MICROVAST, INC.

A method for synthesizing lactic acid and lactate is invented from carbohydrates, such as monosaccharides and/or polysaccharides in the presence of the catalyst that is the combinations of nitrogen-heterocycle aromatic ring cation salts and metal compounds. In the reaction, at least one alcohol and at least one solvent are used. Specifically, in the presence of [SnCl-1-ethyl-3-methylimidazolium chloride ([EMIM]Cl)], SnCl-1,3-dimethylimidazolium methyl sulfate ([DMIM]CHSO)], [SnCl-1-ethyl-3-methylimidazolium chloride ([EMIM]Cl)], or SnCl-1,3-dimethylimidazolium methyl sulfate ([DMIM]CHSO)] in methanol. 1. A method for synthesizing lactic acid and alkyl lactate from carbohydrate-containing raw materials , comprising:(a) preparing a mixture of at least one carbohydrate-containing raw material, at least one alcohol, at least one catalyst comprising nitrogen-heterocycle aromatic cation salts and metal compounds, and at least one solvent; and(b) heating the mixture to obtain lactic acid and alkyl lactate.2. The method of claim 1 , wherein the alkyl lactate is selected from the group consisting of methyl lactate and ethyl lactate.3. The method of claim 1 , wherein the carbohydrate is selected from the group consisting of polysaccharides and monosaccharides.4. The method of claim 1 , wherein the carbohydrate is selected from the group consisting of cotton claim 1 , cellulose claim 1 , starch claim 1 , dextran claim 1 , sucrose claim 1 , fructose and glucose.5. The method of claim 1 , wherein the alcohol is selected from the group consisting of monohydroxyl alcohols claim 1 , dihydroxyl alcohols claim 1 , and multihydroxyl alcohols.6. The method of claim 5 , wherein the monohydroxyl alcohol is selected from the group consisting of methanol claim 5 , ethanol claim 5 , 1-propanol claim 5 , 2-propanol claim 5 , 1-butanol claim 5 , 2-butanol claim 5 , and tert-butanol.7. The method of claim 5 , wherein the dihydroxyl alcohol is selected from the group consisting of ethylene ...

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Номер записи: 61
30-01-2014 дата публикации

OLEFIN CONDITIONING IN A FAST CATALYTIC PYROLYSIS RECYCLE PROCESS

Номер: US20140031583A1
Автор: Mazanec Terry, Norenberg Greg, Pesa Fred, Whiting Jeff
Принадлежит:

This invention relates to improvements in the fast pyrolysis of biomass. In this invention, olefins are separated from the effluent stream of a pyrolysis reactor and at least a portion of the olefins are treated and the resulting treated stream recycled to the pyrolysis reactor for further conversion to valuable, useful products. 1. A method for producing one or more fluid hydrocarbon products from a hydrocarbonaceous material , comprising:feeding a hydrocarbonaceous material is fed to a reactor;pyrolyzing at least a portion of the hydrocarbonaceous material within the reactor under reaction conditions sufficient to produce one or more pyrolysis products;separating the products into at least a first fraction and a second fraction, where the first fraction comprises at least one olefin;treating the first fraction by adding a chemical compound and/or reacting at least some of the olefins in the first fraction to produce a treated fraction; andadding the treated fraction to a pyrolysis reactor.2. The method of wherein the treated fraction is recycled to the same reactor that produced the pyrolysis products.3. The method of wherein the step of treating comprises one or any combination of the following steps: conversion of olefins to alcohols or ethers; addition of radical inhibiting agents; low temperature (80-400° C.) polymerization of olefins;reaction with CO to form carboxylic acids; alkylation to form alkylated aromatics, and hydrogenation of alkynes to olefins.4. The method of wherein a gaseous product stream from the reactor is separated into an olefin poor and olefin rich stream claim 1 , and at least a portion of the olefin rich stream coming from an olefins separator is treated before mixing with a full recycle gas stream claim 1 , thereby reducing the volume to be treated.5. The method of wherein one or more fluid hydrocarbon products are produced from the pyrolysis products by a treatment selected from the group consisting of dehydration claim 1 , ...

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Номер записи: 62
13-02-2014 дата публикации

REMOVING HYDROCARBON IMPURITIES FROM ACETIC ACID PRODUCTION INTERMEDIATE

Номер: US20140046092A1
Автор: Guo Shao-hua, Hallinan Noel, Salisbury Brian A.
Принадлежит: Lyondell Chemical Technology, L.P.

A method for removing hydrocarbon impurities from an acetic acid production intermediate is disclosed. The method comprises extracting the intermediate with a hydrocarbon extracting agent. The extraction is preferably performed with the alkane distillation bottom stream which comprises methyl iodide, acetic acid, and hydrocarbon impurities. The extraction forms a light phase which comprises the hydrocarbon impurity and the extracting agent and a heavy phase which comprises methyl iodide and acetic acid. The extraction heavy phase is optionally recycled to the alkane distillation or to the carbonylation reaction. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. A method for producing acetic acid comprising:(a) reacting methanol and carbon monoxide in the presence of a carbonylation catalyst, a catalyst stabilizer, methyl iodide, water and methyl acetate to produce an acetic acid stream comprising a hydrocarbon impurity;(b) flashing the acetic acid stream into a vapor stream comprising acetic acid, water, methanol, methyl acetate, methyl iodide and the hydrocarbon impurity, and a liquid stream comprising the catalyst and the catalyst stabilizer;(c) separating the vapor stream from step (b) by distillation into a product stream comprising acetic acid and water, and an overhead stream comprising methyl iodide, water, methyl acetate, acetic acid, and the hydrocarbon impurity;(d) condensing the overhead stream from step (c) into a light, aqueous phase comprising water, and acetic acid, methyl acetate, and a heavy, organic phase comprising methyl iodide, acetic acid, water, and the hydrocarbon impurity; and(e) distilling the heavy, organic phase from step (d) into a vapor stream comprising methyl iodide and a bottoms stream comprising acetic acid, methyl iodide, water, and the hydrocarbon impurity; and(f) extracting the bottoms stream from step (e) with a hydrocarbon extracting agent, and forming a light phase comprising the ...

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Номер записи: 63
20-02-2014 дата публикации

PROCESS OF BIOLOGICALLY PRODUCING A p-HYDROXYBENZOIC ACID

Номер: US20140051140A1
Автор: Ahn Jin Ho, BYUN Jong Won, CHOI Won Jae, HA Young Wan, SEO Joo-Hyun
Принадлежит:

A method of biologically producing p-hydroxybenzoic acid, and a method for producing p-hydroxybenzoic acid from lignin through chemical and biological conversion. 1. A method for biologically producing p-hydroxybenzoic acid , comprising contacting a substrate with a biocatalyst , wherein the substrate comprises an aromatic carboxylic acid having (a) a p-hydroxy group and (b) a hydroxy group or C1-C4 alkoxy group attached to at least one other position of the aromatic ring , and the biocatalyst removes the hydroxy group or C1-C4 alkoxy group of (b) to produce p-hydroxybenzoic acid.3. The method of claim 1 , wherein the aromatic carboxylic acid is vanillic acid or syringic acid.4. The method of claim 1 , wherein the biocatalyst is an enzyme claim 1 , a microorganism claim 1 , a lysate of a microorganism claim 1 , or an extract of a microorganism lysate.5. The method of claim 4 , wherein the biocatalyst comprises anthranilate synthase claim 4 , 5-O-(1-carboxyvinyl)-3-phosphoshikimate phosphate-lyase claim 4 , chorismate lyase claim 4 , 3-dehydroshikimate hydro-lyase claim 4 , isochorismate lyase claim 4 , aminodeoxychorismate lyase claim 4 , 3-dehydroquinate hydro-lyase claim 4 , prephenate hydro-lyase claim 4 , or hydroxyphenylpyruvate synthase.6Saccharomyces, Zygosaccharomyces, Schizosaccharomyces, Kluyveromyces, Candida, Hansenula, Debaryomyces, Nadsonia, Lipomyces, Torulopsis, Kloekera, Pichia, Trigonopsis, Brettianomyces, Aspergillus, Yarrowia, Cryptococcus, Aureobasidium, Rhizopus, Monascus, Leucosporidium, Issatchenkia, Streptococcus, Escherichia, Bacillus, Brucella suis, Mycobacterium, Salmonella, Shigella, Yersinia, Aquifex, Helicobacter, Staphylococcus, Thermotoga, Pseudomonas, Sinorhizobium, Vibrio, Schizosaccharomyces, Clostridium, Lactobacillus, Klebsiella, Citrobacter,Streptomyces.. The method of claim 4 , wherein the enzyme is derived from or7. The method of claim 4 , wherein the microorganism is a wild type or a recombinant microorganism.8. The method ...

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Номер записи: 64
27-02-2014 дата публикации

METHOD FOR PRODUCING ACETYLENEDICARBOXYLIC ACID FROM ACETYLENE AND CARBON DIOXIDE

Номер: US20140058132A1
Автор: Arndt Matthias, Gooßen Lukas J.
Принадлежит: BASF SE

The invention relates to a method for producing acetylenedicarboxylic acid by reaction of acetylene with carbon dioxide, wherein the reaction is carried out in the presence of a silver or copper salt and an amine base. 1. A method for producing acetylenedicarboxylic acid by reaction of acetylene with carbon dioxide , wherein the reaction is carried out in the presence of a silver or copper catalyst and an amine base.2. The method according to wherein the silver catalyst is selected from the group consisting of silver(l) halides claim 1 , silver(l) nitrate and silver tetrafluoroborate.3. The method according to wherein the copper catalyst is chosen from the group consisting of copper(l) iodide and copper(l) cyanide.4. The method according to wherein the amine base is chosen from the group consisting of 1 claim 1 ,5-diazabicyclo[4.3.0]non-5-ene (DBN) and 1 claim 1 ,8-diazabicyclo[5.4.0]undec-7-ene (DBU).5. The method according to wherein the reaction is carried out in a solvent.6. The method according to wherein the reaction is carried out at a total pressure of 1-50 bar and a temperature of 50 to 120° C.7. The method according to wherein the reaction is carried out with a molar ratio of carbon dioxide to acetylene of 2:1 to 50:1. The invention relates to a method for producing acetylenedicarboxylic acid by reaction of acetylene with carbon dioxide.According to an historic method, dating back to the year 1877, acetylenedicarboxylic acid is formed from meso-dibromosuccinic acid by alkaline elimination.The formation of acetylenedicarboxylic acid with a yield of 34% by reacting dilithium carbide, obtained from reaction of vinyl bromide with butyllithium, with carbon dioxide in ether, where the carbon dioxide is added as dry ice, is described in E. C. Horning, J. Am Chem. Soc. 1945, 67, 1412-1422.Acetylenedicarboxylic acid may be obtained in a yield of ca. 50% by the electrochemical oxidation of alkynols at the anode with lead oxide electrodes. An electrochemical method ...

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Номер записи: 65
27-02-2014 дата публикации

PRODUCTION OF ACRYLIC ACID FROM A METHANE CONVERSION PROCESS

Номер: US20140058133A1
Автор: Bricker Jeffery C., Chen John Q., Coughlin Peter K.
Принадлежит:

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units. 1. A method for producing acrylic acid comprising:introducing a feed stream comprising methane into a supersonic reactor;pyrolyzing the methane in the supersonic reactor to form a reactor effluent stream comprising acetylene;passing the reactor effluent stream to a hydrogenation reactor at hydrogenation reaction conditions to form an ethylene effluent stream;passing the ethylene effluent stream to a higher olefin processing unit to generate an effluent stream comprising propylene; andpassing the propylene effluent stream to an acrylic acid reactor to generate an acrylic acid product stream.2. The method of wherein the higher olefin processing unit includes apassing a first portion of the ethylene stream to a dimerization reactor to generate a butene effluent stream; andpassing a second portion of the ethylene stream, and the butene effluent stream to a metathesis reactor to generate a propylene stream.3. The method of wherein the propylene stream is passed to a light olefins recovery unit to generate a purified propylene stream.4. The method of wherein the higher olefin processing unit includes:passing the ethylene stream to on oligomerization reactor to an olefin effluent stream comprising C4+ olefins; andpassing the olefin effluent stream to an olefin cracking unit to generate a propylene stream.5. The method of wherein the propylene stream is passed to a light olefins recovery unit to generate a purified propylene stream.6. The method ...

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Номер записи: 66
13-03-2014 дата публикации

Process for Making Acrylic Acid by Integrating Acetic Acid Feed Stream from Carbonylation Process

Номер: US20140073812A1
Автор: Chapman Josefina T., Mueller Sean, Pan Tianshu, Scates Mark O., Shaver Ronald D., Torrence G. Paull
Принадлежит: Celanese International Corporation

In one embodiment, the invention is to a process for producing acrylic acid, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising at least 0.15 wt % water. The process further comprises the step of condensation acetic acid of the purified acetic acid stream and an alkylenating agent in the presence of a catalyst and under conditions effective to form a crude acrylate product comprising acrylic acid and water. Acrylic acid is recovered from the crude acrylate product. 1. A process for producing an acrylate product , comprising:reacting, in a first system, carbon monoxide with at least one reactant in a reaction medium and under conditions effective to produce a crude alkanoic acid stream comprising alkanoic acid, wherein the reaction medium is a heterogeneous system using solid catalyst or a homogeneous system comprising water, methyl iodide, and a first catalyst;separating, in a distillation column, the crude alkanoic acid stream to form a liquid alkanoic acid stream comprising alkanoic acid and at least 0.15 wt % water; andreacting, in a second system, at least a portion of the alkanoic acid in the liquid alkanoic acid stream with an alkylenating agent in the presence of a second catalyst and under conditions effective to form a crude acrylate product stream.2. The process of claim 1 , further comprising separating the crude acrylate product stream to form an acrylate product stream and a water stream.3. The process of claim 2 , further comprising maintaining a steady state water concentration in the first system by returning a portion of the water stream from the second system to the first system.4. The process of claim 3 , wherein the steady state water concentration from the first system to the second system is from a finite amount up to 14 wt %.5. The process of claim 1 , further comprising measuring the water concentration and flow rate in the liquid alkanoic acid stream.6. The process ...

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Номер записи: 67
27-03-2014 дата публикации

METHOD FOR MANUFACTURING POLYOXYETHYLENE ALKYL ETHER ACETIC ACID

Номер: US20140088323A1
Автор: SAKAGUCHI Akira
Принадлежит: KAO CORPORATION

The invention relates to a method for manufacturing a polyoxyethylene alkyl ether acetic acid, including feeding oxygen into a liquid phase containing polyoxyethylene ether having a hydrocarbon group at the end (hereinafter, it may also be referred to as a polyoxyethylene alkyl ether) and water, and dehydrogenating and oxidizing the polyoxyethylene alkyl ether in the presence of a platinum catalyst, in which the mass ratio between the total mass of the polyoxyethylene alkyl ether and the polyoxyethylene alkyl ether acetic acid and the mass of water in the liquid phase ((polyoxyethylene alkyl ether+polyoxyethylene alkyl ether acetic acid)/water) is 60/40 to 95/5. 1. A method for manufacturing a polyoxyethylene alkyl ether acetic acid , comprising feeding oxygen into a liquid phase containing a polyoxyethylene alkyl ether having a hydrocarbon group at the end and water and dehydrogenating and oxidizing the polyoxyethylene alkyl ether in the presence of a platinum catalyst ,wherein the mass ratio of the total mass of the polyoxyethylene alkyl ether and the polyoxyethylene alkyl ether acetic acid to the mass of water in the liquid phase (i.e., total mass of polyoxyethylene alkyl ether and polyoxyethylene alkyl ether acetic acid/mass of water) is 60/40 to 95/5.2. The manufacturing method according to claim 1 , wherein a content of an organic solvent in the liquid phase is 50% by mass or less.3. The manufacturing method according to claim 1 , wherein the total content of water and the organic solvent in the liquid phase is 50% by mass or less.4. The method for manufacturing a polyoxyethylene alkyl ether acetic acid according to claim 1 , wherein the mass ratio of the polyoxyethylene alkyl ether to water in the liquid phase (i.e. claim 1 , mass of polyoxyethylene alkyl ether/mass of water) is 60/40 to 95/5 at the time of starting the reaction.5. The method for manufacturing a polyoxyethylene alkyl ether acetic acid according to claim 1 , wherein the reaction is carried out ...

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Номер записи: 68
02-01-2020 дата публикации

Catalytic oxidation method and method for producing conjugated diene

Номер: US20200001262A1
Автор: Hiroki Hinoishi, Hiroshi Kameo, Kazuyuki IWAKAI, Tetsufumi Yamaguchi
Принадлежит: Mitsubishi Chemical Corp

An object of the present invention is to suppress performance deterioration of a molybdenum composite oxide-based catalyst at the time of performing gas-phase catalytic partial oxidation with molecular oxygen by using a tubular reactor. The present invention relates to a catalytic oxidation method using a tubular reactor in which a Mo compound layer containing a Mo compound and a composite oxide catalyst layer containing a Mo composite oxide catalyst are arranged in this order from a reaction raw material supply port side and under a flow of a mixed gas containing 75 vol % of air and 25 vol % of water vapor at 440° C., a Mo sublimation amount of the Mo compound is larger than a Mo sublimation amount of the Mo composite oxide catalyst under the same conditions.

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Номер записи: 69
04-01-2018 дата публикации

Rh-C3N4 HETEROGENEOUS CATALYST FOR PREPARING ACETIC ACID BY CARBONYLATION REACTION

Номер: US20180001311A1
Автор: Beom Sik Kim, Jae Hyun Park, Jong Wook Bae, Tae Sun Chang
Принадлежит: Korea Research Institute of Chemical Technology KRICT, Sungkyunkwan University Research and Business Foundation

This invention relates to a catalyst for use in the preparation of acetic acid through a methanol carbonylation reaction using carbon monoxide, and particularly to a heterogeneous catalyst represented by Rh/C 3 N 4 configured such that a complex of a rhodium compound and 3-benzoylpyridine is immobilized on a carbon nitride support.

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Номер записи: 70
05-01-2017 дата публикации

PROCESS FOR FLASHING A REACTION MEDIUM

Номер: US20170001938A1
Автор: Liu Yaw-Hwa, Scates Mark O., Shaver Ronald D.
Принадлежит:

A process for producing acetic acid is disclosed in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The methyl iodide concentration in the vapor product stream ranges from 24 to less than 36 wt. % methyl iodide, based on the weight of the vapor product stream. In addition, the acetaldehyde concentration is maintained within the range from 0.005 to 1 wt. % in the vapor product stream. The vapor product stream is distilled in a first column to obtain an acetic acid product stream comprising acetic acid and up to 300 wppm hydrogen iodide and/or from 0.1 to 6 wt. % methyl iodide and an overhead stream comprising methyl iodide, water and methyl acetate. 120-. (canceled)21. A process for producing acetic acid by carbonylating a reactant feed stream comprising at least one member selected from the group consisting of methanol , methyl acetate , and dimethyl ether in a reactor in the presence of water , rhodium catalyst , iodide salt and from 4 to 13.9 wt. % methyl iodide to form a reaction medium in a reactor , the process comprising:separating the reaction medium in a flash vessel into a liquid recycle stream and a vapor product stream comprising acetic acid, from 24 to less than 36 wt. % methyl iodide, from 0.005 to 1 wt. % acetaldehyde, and up to 1 wt. % hydrogen iodide;distilling at least a portion of the vapor product stream in a first column to obtain an acetic acid product stream and an overhead stream;biphasically separating the overhead stream into an aqueous stream comprising hydrogen iodide and an organic stream, wherein the organic stream comprises from 60 to 95 wt. % methyl iodide, up to 5 wt. % acetaldehyde, and up to 1 wt. % hydrogen iodide; andseparating a portion of the aqueous stream and/or organic stream in a distillation column to remove acetaldehyde, wherein the hydrogen iodide in the aqueous stream and/or organic stream catalyzes a reaction to produce dimethyl ether in the distillation column. ...

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Номер записи: 71
05-01-2017 дата публикации

METHODS FOR COPRODUCTION OF TEREPHTHALIC ACID AND STYRENE FROM ETHYLENE OXIDE

Номер: US20170001939A1
Автор: Farmer Jay J., 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). In one aspect, processes of the invention coproduce biobased terephthalic acid and biobased styrene. 1. A process for production of a chemical product comprising terephthalic acid or tereohthalate by 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 beta propiolactone; andderiving the chemical product from the beta propiolactone 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.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 beta propiolactone to an unsaturated compound selected from the group consisting of: acrylic acid, an ester of acrylic acid an acrylate salt and a mixture of any two or more of these and deriving the chemical product from the unsaturated compound.4. The process of claim 3 , comprising the step of reacting the unsaturated compound with the furan to provide a seven carbon compound containing a cyclohexene ring and deriving the chemical product from the seven carbon compound.5. The process of claim 4 , further comprising the step of dehydrating the seven carbon compound to provide a compound containing a mono-substituted benzene ring and disproportionating the compound containing the mono-substituted benzene ring to produce at least a portion of the chemical product.6. The process of claim 5 , wherein the disproportionation of the mono- ...

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Номер записи: 72
02-01-2020 дата публикации

METHOD FOR THE PRODUCTION OF 2,4-DIHYDROXYBUTYRIC ACID

Номер: US20200002260A1
Автор: Genders David, Stapley Jonathan
Принадлежит: DFI USA, LLC

Methods for the production of 2,4-dihydroxybutyrate (2,4-DHB) from erythrose and other four-carbon sugars are disclosed. The improved methods facilitate the production of 2,4-DHB that is a precursor for biorenewable and animal nutrition chemicals among others. 1. A method of producing 2 ,4-dihydroxybutyrate , comprising: mixing a four carbon sugar and a hydroxide salt in solution , wherein the four carbon sugar is erythrulose.2. The method of claim 1 , wherein the temperature of the solution is maintained below 100° C.3. The method of claim 1 , wherein the four carbon sugar is diluted sufficiently to result in a molar yield of DHB that is greater than 40%.4. The method of claim 1 , wherein the four carbon sugar is diluted with a solution containing DHB.5. The method of claim 1 , wherein the method is performed in a continuous reactor system.6. The method of claim 1 , wherein the hydroxide concentration of the solution is between 0.1 M and 4 M.7. The method of claim 6 , wherein the temperature of the solution is maintained below 100° C.8. The method of claim 7 , wherein the four carbon sugar is diluted with a solution containing DHB.9. The method of claim 1 , further comprising removing oxygen from the solution.10. The method of claim 9 , wherein oxygen is removed by venting the solution with a gas selected from the group consisting of: nitrogen claim 9 , argon claim 9 , and mixtures thereof.11. The method of claim 9 , wherein oxygen is removed by venting the solution with hydrogen.12. The method of claim 11 , wherein the temperature of the solution is maintained below 100° C.13. The method of claim 12 , wherein the erythrulose is diluted with a solution containing one or more other organic acid salts.14. The method of claim 13 , wherein the method is performed in a continuous reactor system.15. A method of producing 2 claim 13 ,4-dihydroxybutyrate claim 13 , comprising:mixing a four carbon sugar and a hydroxide salt in solution; andremoving oxygen from the solution ...

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Номер записи: 73
03-01-2019 дата публикации

REACTION CONTROL IN ACETIC ACID PROCESSES

Номер: US20190002386A1
Автор: Hallinan Noel C., Hearn John D., Mathews Ryan J., Salisbury Brian A., White Daniel F.
Принадлежит: LyondellBasell Acetyls, LLC

The present disclosure provides for a method for measuring the concentration of one or more components in a feed stream or reactor mixture of a process for producing acetic acid by both infrared and Raman spectroscopic analyses. In some embodiments, at least one feed stream comprising water is adjusted in response to the measured concentration of one or more components. 1. A method comprising:A) combining, in a carbonylation reactor, a carbonylation catalyst, methanol, carbon monoxide, and water, to form a reactor mixture;B) introducing one or more feed streams into the carbonylation reactor, at least one feed stream comprising water;C) measuring a concentration of one or more components in at least one feed stream and/or in the reactor mixture by Raman spectroscopic analysis or by infrared spectroscopic analysis; andD) adjusting at least one feed stream comprising water in response to the concentration measured by Raman spectroscopic analysis or infrared spectroscopic analysis.2. The method of claim 1 , wherein the concentration is of methanol in a feed stream and/or methyl acetate in a feed stream.3. The method of claim 1 , wherein the concentration is of methyl acetate in the reactor mixture claim 1 , wherein at least one feed stream comprises methyl acetate claim 1 , and wherein a conversion rate for methyl acetate is calculated from the concentration of methyl acetate in the reactor mixture and the methyl acetate feed rate.4. The method of claim 1 , wherein the reactor mixture comprises carbon dioxide claim 1 , methane claim 1 , and/or hydrogen.5. The method of claim 1 , wherein the concentration is of carbon dioxide claim 1 , methane claim 1 , and/or hydrogen in the reactor mixture.6. The method of claim 1 , wherein the adjusting of the feed stream comprising water achieves or maintains water in the reactor mixture in a concentration of about 2-14 wt %.7. The method of claim 1 , wherein the adjusting is of a feed rate of a feed stream comprising water claim 1 ...

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Номер записи: 74
02-01-2020 дата публикации

Systems and processes for polyacrylic acid production

Номер: US20200002446A1
Автор: Sadesh H. SOOKRAJ
Принадлежит: Novomer Inc

Disclosed are systems and methods for the production of polyacrylic acid and superabsorbent polymers from ethylene oxidation to form ethylene oxide. Reacting the ethylene oxide with carbon monoxide to form to beta propiolactone (BPL) or polypropiolactone (PPL), or a combination thereof. An outlet configured to provide a carbonylation stream comprising the BPL or PPL, or a combination thereof and using one or more reactors to convert BPL to acrylic acid or to convert at least some of the BPL to PPL, and then to convert PPL to acrylic acid. An outlet configured to provide a PPL stream to a second reactor tm to convert at least some of the PPL to AA or a third reactor to convert at least some of the PPL to AA. The outlet configured to provide an AA stream to a fourth reactor to convert the AA to polyacrylic acid.

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Номер записи: 75
07-01-2021 дата публикации

A METHOD FOR PRODUCING PURE AND HIGHLY CONCENTRATED CARBON DIOXIDE FROM A RENEWABLE LIGNOCELLULOSIC BIOMASS FEEDSTOCK

Номер: US20210002568A1
Автор: DELMAS Michel
Принадлежит:

A low energy production method for producing pure and highly concentrated carbon dioxide from a renewable lignocellulosic biomass feedstock comprising the steps of i) extracting lignins and hemicelluloses by putting a solid lignocellulosic raw material in the presence of a mixture of at least water and formic acid, at atmospheric pressure under conditions of temperature between 80° C. and 110° C., ii) fractionating, the primary solid fraction and the primary liquid fraction obtained at the end of the extraction step i), iii) separating the lignins from the intermediate liquid fraction, iv) producing a synthetic gas by feeding a gasification equipment with at least part of said primary solid fraction and/or at least part of said residual liquid fraction, and v) producing carbon dioxide and water by introducing dioxygen, or dioxygen enriched air, or air in said gasification equipment. 1. A low energy production method for producing carbon dioxide from a renewable lignocellulosic biomass feedstock comprising the following steps:i) extracting lignins and hemicelluloses by putting at least one solid lignocellulosic raw material in a presence of a mixture, composed of at least water and formic acid, at atmospheric pressure under controlled conditions of temperature between 80° C. and 110° C., with a dilution ratio of said at least one solid lignocellulosic raw material/liquid mixture comprised between 1 and 15, and for a determined period of time, depending on a nature of the at least one lignocellulosic raw material;ii) fractionating, at atmospheric pressure, a primary solid fraction and a primary liquid fraction obtained at an end of the preceding extracting step i);iii) separating the lignins from an intermediate liquid fraction, and obtaining a residual liquid fraction;iv) producing a synthetic gas by feeding a gasification equipment with at least one of at least part of said primary solid fraction or at least part of said residual liquid fraction;v) producing carbon ...

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Номер записи: 76
01-01-2015 дата публикации

Continuous process of oxidative cleavage of vegetable oils

Номер: US20150005521A1
Автор: Adriano Ferrari, Alexxandro Pirocco, Arno Bieser, Francesca Digioia, Giampietro Borsotti
Принадлежит: Novamont SpA

A continuous process for the oxidative cleavage of vegetable oils containing triglycerides of unsaturated carboxylic acids, to obtain saturated carboxylic acids, comprising feeding to a first continuous reactor a vegetable oil, an oxidizing compound and catalyst capable of catalyzing the oxidation reaction of the olefinic double bond to obtain an intermediate compound containing vicinal diols: feeding to a second continuous reactor said intermediate compound, a compound containing oxygen and a catalyst capable of catalyzing the oxidation reaction of the vicinal diols to carboxylic groups, to obtain saturated monocarboxylic acids (i) and triglycerides containing saturated carboxylic acids with more than one acid function (ii); separating the saturated monocarboxylic acids (i) from the triglycerides (ii); hydrolyzing in a third reactor the triglycerides (ii) to obtain glycerol and saturated carboxylic acids with more than one acid function; and purifying said saturated carboxylic acids by fractioned crystallization by means of wash column (melt crystallization).

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Номер записи: 77
14-01-2016 дата публикации

3'-substituted-abscisic acid derivatives

Номер: US20160007598A1
Автор: Daniel Heiman, Eiki Nagano, Gary T. Wang, Gregory D. Venburg, Joseph H. LUSTIG, Marci SURPIN
Принадлежит: Valent BioSciences LLC

The invention relates to a novel class of (S)-3′-substituted-abscisic acid derivatives and (±)-3′-substituted-abscisic acid derivatives, and methods of synthesizing the derivatives.

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Номер записи: 78
12-01-2017 дата публикации

Process for producing 2,5-dihalophenolethers

Номер: US20170008824A1
Автор: David Cortes, Eric George Klauber, Gerald SCHMELEBECK, Junmin JI, Michael Rack, Nicole HOLUB, Thomas Zierke
Принадлежит: BASF SE

The present invention relates to a process for providing a compound of formula (IV): wherein R 1 and R 2 are each independently C 1 -C 4 alkyl, and Hal is independently Cl or Br, the process comprising the steps of: (i) reacting a compound of formula (II) wherein R 1 and Hal is defined as above, to obtain a compound of formula (III) wherein R 1 and Hal is defined as above, and (ii) reacting the compound of formula (III) to obtain the compound of formula (IV).

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Номер записи: 79
12-01-2017 дата публикации

CATALYST STABILITY AND CORROSION PREVENTION IN ACETIC ACID PRODUCTION PROCESS

Номер: US20170008827A1
Автор: Fern Jared T., Hallinan Noel C., Ramage David L., Salisbury Brian A., White Daniel F.
Принадлежит: LyondellBasell Acetyls, LLC

Processes for producing acetic acid herein generally include contacting methanol and carbon monoxide in the presence of a reaction medium under carbonylation conditions sufficient to form acetic acid, the reaction medium including a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; from 1 wt. % to 14 wt. % water; and a plurality of additives, in-situ generated derivatives of the plurality of additives or combinations thereof; the plurality of additives including a first additive including one or more phosphine oxides and a second additive selected from heteropolyacids, metal salts and combinations thereof, the heteropolyacids represented by the formula HMXO, wherein H is hydrogen, M is selected from tungsten and molybdenum, X is selected from phosphorous and silicon and O is oxygen and n is 3 or 4, the metal salts are selected from transition metal salts, lanthanide metal salts and combinations thereof; and recovering acetic acid from the process. 118-. (canceled)19. A process for producing acetic acid comprising: i) a rhodium catalyst;', 'ii) from 1 wt. % to 14 wt. % water; and', 1) wherein the plurality of additives comprise a first additive and a second additive;', '2) wherein the first additive comprises one or more phosphine oxides independently selected from non-benzoyl containing pentavalent phosphine oxides, compound mixtures of at least four phosphine oxides and pentavalent aryl or alkaryl phosphine oxides comprising one or more benzoyl groups;', {'sub': '3', 'a) wherein the non-benzoyl containing pentavalent phosphine oxides have the formula RP═O, wherein each R is independently selected from substituted or unsubstituted alkyls, aryls, aralkyls and combinations thereof; and'}, {'sub': 3', '4', '18', '4', '18', '4', '18', '4', '18, 'b) wherein each phosphine oxide of the compound mixtures has the formula OPX, wherein O is oxygen, P is phosphorous and X is independently selected from C-Calkyls, C-Caryls, C- ...

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Номер записи: 80
14-01-2021 дата публикации

CATALYSTS AND METHODS FOR PRODUCING ACETIC ACID FROM METHANE, CARBON MONOXIDE, AND OXYGEN

Номер: US20210008530A1
Автор: Huang Weixin, Li Yuting, Tang Yu, Tao Franklin
Принадлежит:

Catalysts for producing one or more oxygenated products from methane are provided. In embodiments, the catalyst comprises active sites comprising isolated, cationic transition metal M′ atoms covalently bound to internal surfaces of pores of a porous metal M″ silicate, wherein M′ is Rh or Ir, and further wherein the M′ atoms are bound to five oxygen (O) atoms. Methods for making and using the catalysts are also provided. 1. A catalyst for producing one or more oxygenated products from methane , the catalyst comprising active sites comprising isolated , cationic transition metal M′ atoms covalently bound to internal surfaces of pores of a porous metal M″ silicate ,wherein M′ is Rh or Ir, andfurther wherein the M′ atoms are bound to five oxygen (O) atoms.2. The catalyst of claim 1 , wherein the active sites have formula (O)=M′≡(O) claim 1 , wherein Ois molecular oxygen and the remaining O atoms are also covalently bound within the porous metal M″ silicate.3. The catalyst of claim 2 , wherein one claim 2 , two claim 2 , or all three of the oxygens of the M′≡(O)bonds are also covalently bound to the M″ of the porous metal M″ silicate claim 2 , thereby providing one claim 2 , two claim 2 , or three M′-O-M″ linkages.4. The catalyst of claim 1 , wherein an external surface of the porous metal M″ silicate is free of M′ atoms claim 1 , the porous metal M″ silicate is free of M′-M′ bonds claim 1 , the porous metal M″ silicate is free of M′ oxide particles claim 1 , or combinations thereof.5. The catalyst of having an amount of M′ in a range of from 0.01 wt % to 0.5 wt %.6. The catalyst of claim 1 , wherein the porous metal M″ silicate is a microporous aluminosilicate.7. The catalyst of claim 6 , wherein the microporous aluminosilicate is a zeolite.8. The catalyst of claim 7 , wherein the zeolite is ZSM-5.9. A catalyst for producing one or more oxygenated products from methane claim 7 , the catalyst comprising active sites comprising isolated claim 7 , cationic transition metal ...

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Номер записи: 81
10-01-2019 дата публикации

PROCESS FOR FLASHING A REACTION MEDIUM

Номер: US20190010109A1
Автор: Liu Yaw-Hwa, Scates Mark O., Shaver Ronald D.
Принадлежит:

A process for producing acetic acid is disclosed in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The methyl iodide concentration in the vapor product stream ranges from 24 to less than 36 wt. % methyl iodide, based on the weight of the vapor product stream. In addition, the acetaldehyde concentration is maintained within the range from 0.005 to 1 wt. % in the vapor product stream. The vapor product stream is distilled in a first column to obtain an acetic acid product stream comprising acetic acid and up to 300 wppm hydrogen iodide and/or from 0.1 to 6 wt. % methyl iodide and an overhead stream comprising methyl iodide, water and methyl acetate. 120-. (canceled)21. A process for producing acetic acid by carbonylating a methanol reactant feed stream in a reactor in the presence of water , rhodium catalyst , iodide salt and methyl iodide to form a reaction medium , the process comprising:separating the reaction medium in a flash vessel into a liquid recycle stream and a vapor product stream comprising acetic acid, from 24 to less than 36 wt. % methyl iodide, from 0.005 to 1 wt. % acetaldehyde, and up to 1 wt. % hydrogen iodide;distilling at least a portion of the vapor product stream in a first column to obtain a sidedraw comprising acetic acid;distilling the acetic acid product stream in a second column to recover a stream near the bottom consisting essentially of acetic acid.22. The process of claim 21 , wherein the liquid catalyst recycle comprises rhodium catalyst in an amount from 0.01 to 0.5 wt. % claim 21 , lithium iodide in an amount from 5 to 20 wt. % claim 21 , corrosion metals in an amount from 10 to 2500 wppm claim 21 , acetic acid in an amount from 60 to 90 wt. % claim 21 , methyl iodide in an amount from 0.5 to 5 wt. % claim 21 , methyl acetate in an amount from 0.1 to 5 wt. % claim 21 , water in an amount from 0.1 to 8 wt. %.23. The process of claim 22 , wherein the corrosion metals include ...

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Номер записи: 82
09-01-2020 дата публикации

PROCESS FOR PREPARATION OF HALO SUBSTITUTED BENZOIC ACID COMPOUND AND INTERMEDIATES THEREOF

Номер: US20200010397A1
Автор: Anand Rajdeep, Kumar Kapil, Singh Amardeep, Singh Bhupender
Принадлежит:

The present invention provides a process for preparation of halo substituted benzoic acid compound of Formula (1) and intermediates thereof. 4. (canceled)5. The process according to claim 1 , wherein the inorganic base is selected from the group consisting of alkali metal hydroxides claim 1 , alkali earth hydroxides claim 1 , metal carbonates and metal oxides or a mixture thereof.6. The process according to claim 5 , wherein claim 5 , the inorganic base is selected from the group consisting of lithium hydroxide claim 5 , sodium hydroxide claim 5 , potassium hydroxide claim 5 , calcium hydroxide claim 5 , lithium carbonate claim 5 , potassium carbonate claim 5 , sodium carbonate and ammonium carbonate claim 5 , calcium oxide claim 5 , or a mixture thereof.7. The process according to claim 1 , wherein claim 1 , the inorganic sulphate is selected from the group consisting of sodium sulphate claim 1 , potassium sulphate claim 1 , ammonium sulphate claim 1 , calcium sulphate claim 1 , or a mixture thereof.8. The process according to claim 1 , wherein the catalyst is selected from the group consisting of palladium claim 1 , platinum claim 1 , nickel claim 1 , chromium dioxide and Raney nickel supported on alumina or activated carbon.9. The process according to claim 1 , wherein the buffering agent is either a metal phosphate selected from a group consisting of diammonium phosphate claim 1 , mono potassium phosphate claim 1 , dipotassium phosphate claim 1 , magnesium phosphate claim 1 , silver phosphate claim 1 , sodium monofluorophosphate claim 1 , sodium phosphate claim 1 , tripotassium phosphate claim 1 , trisodium phosphate claim 1 , lead(II) phosphate claim 1 , lithium iron phosphate claim 1 , manganese(II) phosphate claim 1 , potassium titanyl phosphate or a metal acetates selected from a group consisting of sodium acetate claim 1 , potassium acetate claim 1 , lithium acetate claim 1 , calcium acetate and magnesium acetate or a mixture thereof. The present invention ...

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Номер записи: 83
21-01-2016 дата публикации

PROCESS

Номер: US20160016878A1
Автор: HENNIGAN Sean Anthony
Принадлежит:

A continuous process for the co-production of acetic acid and acetic anhydride by (a) contacting carbon monoxide with a liquid reaction composition comprising methyl acetate, dimethyl ether or a mixture thereof, a Group VIII metal catalyst, methyl iodide, acetic acid, acetic anhydride, water in a concentration of 0.1 wt % or less, (b) withdrawing liquid reaction composition from the reaction zone and introducing at least a portion of the withdrawn liquid reaction composition into a flash separation zone, and (c) removing from the flash separation zone a vapour fraction comprising acetic anhydride, acetic acid and methyl iodide and a liquid fraction comprising acetic anhydride, and Group VIII metal catalyst in which at least one of the liquid reaction composition and the withdrawn liquid reaction composition introduced into the flash separation zone comprises at least one metal salt selected from salts of Group IA and Group IIA metals and the molar ratio of acetic acid to acetic anhydride in the vapour fraction removed from the flash separation zone is maintained at greater than or equal to 1, preferably greater than or equal to 1.2.

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Номер записи: 84
15-01-2015 дата публикации

Process for Preparing N-(4-Cyclohexyl-3-trifluoromethyl-benzyloxy)-acetimidic Acid Ethyl Ester

Номер: US20150018577A1
Автор: Gallou Fabrice, Sedelmeier Joerg Matthias, Vogel Caspar
Принадлежит:

This invention relates to novel processes for synthesizing N-(4-cyclohexyl-3-trifluoromethyl-benzyloxy)-acetimidic acid ethyl ester and to the compound of formula I below and other intermediates that are used in such processes. 141-. (canceled)48. A process according to claim 47 , wherein the base is sodium hydride and the process is conducted in the presence of a catalytic amount of 4-dimethylamino pyridine.49. A process according to claim 47 , wherein Xis bromo.51. A process according to claim 50 , wherein claim 50 , in step “a” claim 50 , X is chloro and the Grignard reagent is isopropylmagnesium chloride lithium chloride complex.52. A process according to claim 50 , wherein claim 50 , in step “b” claim 50 , the acid is sulfuric acid.53. A process according to claim 50 , wherein claim 50 , in step “d” claim 50 , Xis bromo.54. A process according to claim 50 , wherein claim 50 , in step “d” claim 50 , the acid is sulfuric acid claim 50 , trifluoroacetic acid or a mixture of trifluoroacetic acid and sulfuric acid.55. A process according to claim 50 , wherein claim 50 , in step “e” claim 50 , the Grignard reagent is a butyl lithium butylmagnesiumchloride complex or a butyl lithium i-propylmagnesiumchloride complex.56. A process according to claim 50 , wherein claim 50 , wherein claim 50 , in step “e” claim 50 , an aldehyde of formula VIIA is formed.57. A process according to claim 50 , wherein claim 50 , in step “f” claim 50 , the reducing agent is lithium aluminum hydride.59. A process according to claim 58 , wherein claim 58 , in step “c” claim 58 , the compound of formula XIV is reacted with N-bromosuccinimide claim 58 , bromine or 1 claim 58 ,3-dimethyl-2 claim 58 ,5-dibromohydantoine and a radical starter.60. A process according to claim 58 , wherein step “a” is conducted in the presence of a base claim 58 , a phosphine and a palladium catalyst.61. A process according to claim 60 , wherein the palladium catalyst is palladium acetate and the base is sodium ...

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Номер записи: 85
21-01-2021 дата публикации

METHOD FOR PRODUCING alpha,ß-UNSATURATED CARBOXYLATE

Номер: US20210017114A1
Автор: DASANAYAKE ALUTHGE Rasika, MIYAMA Toshihito, Shinmei Kenichi
Принадлежит: Sekisui Chemical Co., Ltd.

A method for producing an α,β-unsaturated carboxylic acid salt, including: a step (1) of reacting a transition metal complex, an alkene and carbon dioxide to obtain a metal lactone compound represented by formula (1): 4. The method according to claim 3 , wherein at least one of the X is a nitrogen atom claim 3 , and{'sup': 1', '2', '3, 'A, R, and R, which are bonded to the nitrogen atom, are bonded together to form a heteroaromatic ring.'}5. The method according to claim 3 , wherein at least one of the X is a phosphorus atom claim 3 , and{'sup': 2', '3, 'at least one of Rand R, which are bonded to the phosphorus atom, is an aliphatic hydrocarbon group having 3 or more carbon atoms, an aromatic hydrocarbon group having 6 or more carbon atoms, or a heteroaromatic group having 3 or more carbon atoms.'}7. The method according to claim 1 , wherein a molar amount (B) of the base per mol of the transition metal complex in the step (2) is not more than the molar amount (A) of the carbon dioxide.8. The method according to claim 1 , wherein the reaction in the step (1) is carried out at a pressure of 10 atm or less.9. The method according to claim 1 , wherein the step (1) and the step (2) are alternately repeated. The present invention relates to a method for producing an α,β-unsaturated carboxylic acid salt.Priorities are claimed on Japanese Patent Application No. 2018-061752, filed Mar. 28, 2018, and Japanese Patent Application No. 2018-246136, filed Dec. 27, 2018, the contents of which are incorporated herein by reference.In recent years, for reducing greenhouse gases such as carbon dioxide (CO) or other purposes, many methods have been proposed with respect to the chemical synthesis using COas a raw material. As one of such methods, a production of unsaturated carboxylic acids such as acrylic acid using COand an alkene as a raw materials is proposed.For example, Non-Patent Document 1 describes the world's first catalytic synthesis of acrylic acid salts from COand an ...

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Номер записи: 86
17-04-2014 дата публикации

Process for continuous recovering (meth) acrylic acid and apparatus for the process

Номер: US20140105792A1
Автор: Dong-Hyun Cho, Hyun-Kyu Kim, Jun-Seok Ko, Se-Won Baek
Принадлежит: LG Chem Ltd

The present invention relates to a method and apparatus for continuous recovery of (meth)acrylic acid, and more specifically to a method of continuous recovery of (meth)acrylic acid, including: conducting gas phase oxidation of at least one compound selected from the group consisting of propane, propylene, butane, i-butylene, t-butylene, and (meth)acrolein in the presence of a catalyst to obtain a mixed gas containing (meth)acrylic acid; quenching the (meth)acrylic acid-containing mixed gas to remove high boiling point by-products in the (meth)acrylic acid-containing mixed gas; contacting the high boiling point by-product-free (meth)acrylic acid-containing mixed gas with water or an aqueous solution to obtain an aqueous solution containing (meth)acrylic acid; and purifying the aqueous solution containing (meth)acrylic acid to obtain (meth)acrylic acid. The continuous recovery method of (meth)acrylic acid according to the present invention may significantly reduce energy consumption and continuously recover high purity (meth)acrylic acid with excellent production efficiency compared to the previous recovery methods.

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Номер записи: 87
28-01-2016 дата публикации

Production Of Acrylic Acid and Ethanol From Carbonaceous Materials

Номер: US20160023981A1
Автор: Chornet Esteban, Marie-Rose Stephane
Принадлежит:

A process for producing acrylic acid from carbonaceous materials such as biomass. The carbonaceous material, such as biomass, is gasified to produce synthesis gas. The synthesis gas then is subjected to a plurality of reactions to produce acrylic acid. 13-. (canceled)4. A process for producing acrylic acid and ethanol from biomass comprising:(a) contacting said biomass with an oxidizing gas comprising oxygen and steam at a temperature of at least 550° C. and no greater than 800° C., thereby oxidizing said biomass;(b) treating at least a portion of said oxidized biomass produced in step (a) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature which is at least 800° C. and does not exceed a maximum of 850° C.;(c) treating at least a portion of said oxidized biomass produced in step (b) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature from about 800° C. to about 1500° C., thereby producing a crude synthesis gas;(d) purifying the crude synthesis gas to provide a purified synthesis gas;(e) reacting at least a portion of the carbon monoxide from said purified synthesis gas with hydrogen from said purified synthesis gas to provide methanol;(f) reacting said methanol in the presence of a dehydration catalyst to produce dimethyl ether;(g) reacting said dimethyl ether to provide a product comprising propylene and ethylene;(h) reacting said ethylene to produce ethanol; and(i) subjecting said propylene to one or more reaction steps to produce acrylic acid.5. The process of wherein claim 4 , in step (c) claim 4 , said biomass is heated to a temperature of from about 800° C. to about 1 claim 4 ,200° C.6. The process of wherein claim 5 , in step (c) claim 5 , said biomass is heated to a temperature of from about 900° C. to about 1 claim 5 ,100° C.7. The process of wherein claim 6 , in step (c) claim 6 , said biomass is heated to a temperature of from about 925° C. to about 1 claim 6 ,000° C ...

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Номер записи: 88
22-01-2015 дата публикации

PROCESS FOR PREPARATION OF ALKYNYL CARBOXYLIC ACIDS

Номер: US20150025269A1
Автор: Aher Ravindra Dattatray, Gage Madhuri Hanumant, Karabal Pratibha Uttam, Rekula Reddy Santhosh, Sudalai Arumugam, Suryavanshi Gurunath Mallappa
Принадлежит:

The invention provides a simple, efficient, environmental friendly catalytic system for the direct carboxylation reaction using COunder mild condition. A single step heterogeneous catalytic process for preparation of alkynyl carboxylic acids of formula I is disclosed. 110-. (canceled)12. The process according to claim 11 , wherein the heterogeneous copper(II) exchanged montmorillonite K-10 catalyst is present in a range of 10-30 w/w %.13. The process according to claim 11 , wherein the base is used in the range of 1-2 equivalents.14. The process according to claim 11 , wherein yield of said alkynyl carboxylic acids of formula I is in the range of 70-94%.15. The process according to claim 11 , wherein selectivity of said alkynyl carboxylic acid is 100%. The present invention relates to a reproducible, environmental friendly single step heterogeneous catalytic process for preparation of alkynyl carboxylic acids. More particularly, the present invention provides a process for preparation of alkynyl carboxylic acids using heterogeneous catalytic system by carboxylation of terminal alkyne by COunder milder reaction conditions in good yield and selectivity.Chemical Fixation of Carbon Dioxide has attracted much attention in view of environmental, legal, and social issues in the past few decades due to increasing levels of carbon dioxide. Carbon dioxide is an attractive C1 building block in organic synthesis because it is an abundant, renewable carbon source and an environmentally friendly chemical reagent. The utilization, as opposed to the storage of COis indeed more attractive especially if the transformation of carbon dioxide to useful bulk products is an economical one. Much research has been devoted toward exploring technologies for COtransformation, whereby harsh and severe reaction conditions are one of the major limitations for their practical applications. Therefore, the development of efficient catalyst systems for COutilization under mild conditions is highly ...

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Номер записи: 89
01-02-2018 дата публикации

CATALYST FOR MANUFACTURING UNSATURATED ALDEHYDE AND/OR UNSATURATED CARBOXYLIC ACID AND MANUFACTURING METHOD OF SAME, AND MANUFACTURING METHOD OF UNSATURATED ALDEHYDE AND/OR UNSATURATED CARBOXYLIC ACID

Номер: US20180029018A1
Автор: Hiraoka Ryota, Kawamura Tomoyuki, Sugiyama Motohiko
Принадлежит: Nippon Kayaku Kabushiki Kaisha

Provided is a catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which is prepared by a method in which a molybdenum component raw material is composed of only an ammonium molybdate, the weight of water for dissolution is 8.5 times or less relative to the weight of molybdenum contained in the ammonium molybdate; and a bismuth component raw material is composed of only bismuth nitrate, the weight of a nitric acid aqueous solution for dissolution is 2.3 times or more relative to the weight of bismuth contained in the bismuth nitrate, and a nitric acid concentration in the nitric acid aqueous solution for dissolving the bismuth nitrate is 10% by weight or more. 2. The catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim 1 ,wherein e and fin the formula (1) are 0.3. The catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim 1 ,wherein a preliminarily calcined powder obtained by calcining a dry powder that is obtained by drying a slurry containing the component represented by the formula (1) at a temperature of 200° C. or higher and 600° C. or lower; and again calcining the preliminarily calcined powder at a temperature of 200° C. or higher and 600° C. or lower.41. The catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim claim 1 ,wherein the shaping method of the catalyst is a method of coating catalytically active components on a spherical carrier, an average particle diameter of the obtained catalyst is 3.0 mm to 10.0 mm, and a proportion of a weight of the catalytically active components occupying in the whole of the catalyst is 20 to 80% by weight.5. A method for manufacturing the catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid according to claim 1 ,wherein in a step of preparing the compound represented by the formula (1), a ...

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Номер записи: 90
02-02-2017 дата публикации

PRODUCTION SYSTEM/PRODUCTION PROCESS FOR ACRYLIC ACID AND PRECURSORS THEREOF

Номер: US20170029352A1
Автор: Pokrovski Konstantin A., Ruhl John B., SLOWIK Michael A., Sookraj Sadesh H., Vinograd Dmitry
Принадлежит:

Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production process has various unit operations, including, for example, a β-propiolactone production system/production process configured to produce β-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from β-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone. 1. A process for producing acrylic acid from a source of β-propiolactone , comprising:contacting a BPL feed stream with a polymerization initiator in a polypropiolactone reaction zone having at least one polymerization reactor that produces a polypropiolactone outlet stream comprising polypropiolactone and β-propiolactone; and,passing at least a portion of the polypropiolactone outlet stream to an acrylic acid production zone comprising a thermolysis reactor that receives the at least a portion of the polypriolactone outlet stream and produces an acrylic acid stream comprising acrylic acid.2. The process of wherein the polymerization initiator is selected from the group consisting of quaternary ammonium salts claim 1 , alkali metal salts of carboxylic acids claim 1 , ammonium acrylate claim 1 , ammonium acetate claim 1 , phosphonium acrylate claim 1 , phosphonium salts claim 1 , sodium acrylate claim 1 , potassium acrylate claim 1 , phosphonium acetate claim 1 , tetra-n-butylammonium acrylate claim 1 , sodium acetate claim 1 , potassium acetate claim 1 , tetra-n-butylammonium acetate claim 1 , trimethylphenylammonium acrylate claim 1 , trimethylphenylammonium acetate claim 1 , or tetraphenyl phosphonium acrylate.3. The process of wherein a radical polymerization inhibitor is present in the polypropiolactone reaction zone. ...

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Номер записи: 91
29-01-2015 дата публикации

Recovering Ethanol with Sidestreams to Regulate C3+ Alcohols Concentrations

Номер: US20150031924A1
Автор: Adam OROSCO, David Lee, Radmila Wollrab, Trinity HALE, Victor J. Johnston
Принадлежит: Celanese International Corp

This invention relates to purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidestreams to regulate C 3 + alcohols concentration in the recovered ethanol.

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Номер записи: 92
17-02-2022 дата публикации

A THIN FILM BASED PHOTOCATALYST DEVICE FOR HYDROGEN GENERATION AND ALCOHOLS OXIDATION IN DIRECT SUNLIGHT

Номер: US20220048018A1
Автор: NALAJALA Naresh, SUBRAMANIAN GOPINATH Chinnakonda
Принадлежит:

The present invention relates to a photocatalyst device obtained by thin film making on solid surfaces, wherein the device comprises of titania, optionally in the form of composite with noble or transition metal(s) or metal oxides. This device (FIG. ) is evaluated in direct sunlight for hydrogen generation (FIG. ) and oxidation of alcohols (Table 3) using aqueous alcohol solution through water splitting and simultaneously oxidizing alcohol to oxygenated products. 1. A photocatalyst thin film device obtained by drop casting method on flat surfaces or coating thin film on the inner-surfaces of glass vessels by rota-vapour method for generation of hydrogen and alcohol oxygenated products using water splitting with aqueous alcohol substrate in direct sunlight , wherein said device comprises a titania photocatalyst.2. The photocatalyst thin film device as claimed in claim 1 , wherein said device generate hydrogen corresponding to 25-50% of UV light from sunlight by light to chemical conversion through water splitting.3. The photocatalyst thin film device as claimed in claim 1 , wherein said titania photocatalyst is in the form of a composite with noble metal or transition metal or metal oxide.4. The photocatalyst thin film device claim 3 , as claimed in claim 3 , wherein said noble metal or transition metal or metal oxide is selected from palladium claim 3 , Platinum claim 3 , Gold claim 3 , Silver claim 3 , Nickel claim 3 , Cobalt claim 3 , Ruthenium claim 3 , Cuprous oxide claim 3 , Titania and Iron oxides.5. The photocatalyst thin film device as claimed in claim 1 , wherein ratio of weight of titania (in mg) to area of film (in cm) is in the range of 0.1 to 4 with optimum average weight/area ratio of 0.2-0.25 mg/cm.6. The photocatalyst thin film device as claimed in claim 1 , wherein said thin film is drop casted on the surface of the substrate and comprises of cracks and breaks.7. The photocatalyst device as claimed in claim 1 , wherein said alcohol from aqueous ...

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Номер записи: 93
31-01-2019 дата публикации

METHOD FOR PREPARING MULTI-SUBSTITUTED ACRYLIC ACID COMPOUND

Номер: US20190031591A1
Автор: CHANG Yu-Che, CHENG Chien-Hong, Hung Chen-Hsun
Принадлежит:

A method for preparing a multi-substituted acrylic acid compound includes steps as follow. A reaction solution is provided, wherein the reaction solution includes an organometallic reagent, a nickel-containing metal catalyst, a catalyst ligand, a first solvent, and the organometallic reagent is a Grignard reagent or a Gilman reagent. An addition step is conducted, wherein an alkyne compound is mixed with the reaction solution so as to undergo an addition reaction, thus an intermediate solution is obtained. A substitution step is conducted, wherein a carbon dioxide is introduced into the intermediate solution so as to obtain the multi-substituted acrylic acid compound. 2. The method for preparing the multi-substituted acrylic add compound of claim 1 , wherein the nickel-containing catalyst is a nickel halide.3. The method for preparing the multi-substituted acrylic acid compound of claim 1 , wherein the nickel-containing catalyst comprises a nickel halide and a first ligand.4. The method for preparing the multi-substituted acrylic acid compound of claim 3 , wherein the first ligand is dimethoxyethane or bis(2-methoxyethyl) ether.5. The method for preparing the multi-substituted acrylic acid compound of claim 1 , wherein a concentration of the nickel-containing catalyst is 5 mol % to 20 mol % based on 100 mol % of the alkyne compound.6. The method for preparing the multi-substituted acrylic acid compound of claim 1 , wherein the catalyst ligand is a phosphine compound.7. The method for preparing the multi-substituted acrylic acid compound of claim 6 , wherein the catalyst ligand is triphenylphosphine.8. The method for preparing the multi-substituted acrylic acid compound of claim 1 , wherein the first solvent is an aprotic solvent.9. The method for preparing the multi-substituted acrylic add compound of claim 8 , wherein the first solvent is tetrahydrofuran.10. The method for preparing the multi-substituted acrylic acid compound of claim 1 , wherein the addition step ...

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Номер записи: 94
05-02-2015 дата публикации

Apparatus for production of high purity carbon monoxide

Номер: US20150038741A1
Автор: Bøgild John Hansen, Friis Claus Pedersen, Henrik Olsson, Jens Ulrik Nielsen, Kim Hedegaard Andersen, Thomas Rostrup-Nielsen
Принадлежит: Haldor Topsoe AS

A device and a process for producing high purity CO by electrolysis of CO2 in a Solid Oxide Electrolysis Cell stack and a gas separation unit, also the gas separation unit may be a Solid Oxide Electrolysis Cell stack.

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Номер записи: 95
11-02-2016 дата публикации

CATALYSTS FOR CONVERTING SYNGAS INTO LIQUID HYDROCARBONS AND METHODS THEREOF

Номер: US20160038923A1
Автор: Batchelor William, Yan Qiangu, Yu Fei
Принадлежит: Mississippi State University

The presently-disclosed subject matter includes methods for producing liquid hydrocarbons from syngas. In some embodiments the syngas is obtained from biomass and/or comprises a relatively high amount of nitrogen and/or carbon dioxide. In some embodiments the present methods can convert syngas into liquid hydrocarbons through a one-stage process. Also provided are catalysts for producing liquid hydrocarbons from syngas, wherein the catalysts include a base material, a transition metal, and a promoter. In some embodiments the base material includes a zeolite-iron material or a cobalt-molybdenum carbide material. In still further embodiments the promoter can include an alkali metal. 1. A method for producing liquid hydrocarbons from syngas , comprising:obtaining syngas from a biomass;contacting the syngas with a catalyst to catalyze the production of the liquid hydrocarbons, the catalyst including a base material, a transition metal, and a promoter;wherein the promoter is potassium hydroxide, potassium carbonate, or potassium nitrate.2. The method of claim 1 , wherein the base material includes a zeolite claim 1 , iron claim 1 , a zeolite-iron material claim 1 , a cobalt-molydenum material claim 1 , a cobalt-molydenum carbide claim 1 , or combinations thereof.3. (canceled)4. The method of claim 1 , wherein the base material includes a zeolite-iron material claim 1 , and wherein the transition metal is selected from platinum (Pt) claim 1 , palladium (Pd) claim 1 , ruthenium (Ru) claim 1 , iridium (Ir) claim 1 , rhodium (Rh) claim 1 , molybdenum (Mo) claim 1 , cobalt (Co) claim 1 , and combinations thereof.5. The method of claim 1 , wherein the zeolite-iron material includes iron oxide nanostructures.6. The method of claim 1 , wherein the base material includes a cobalt-molybdenum carbide claim 1 , and wherein the transitional metal is selected from iron (Fe) claim 1 , nickel (Ni) claim 1 , tungsten (W) claim 1 , vanadium (V) claim 1 , copper (Cu) claim 1 , silver (Ag) ...

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Номер записи: 96
18-02-2021 дата публикации

Process of producing alpha-hydroxy compounds and uses thereof

Номер: US20210045414A1
Автор: Esben Taarning, Juan Salvador Martínez Espín, Søren Tolborg
Принадлежит: Haldor Topsoe AS

New process of producing alpha-hydroxy compounds from sustainable resources useful as platform chemicals, such as hydroxy analogues of amino acids or polymer precursors.

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Номер записи: 97
07-02-2019 дата публикации

Process for making formic acid utilizing higher-boiling formate esters

Номер: US20190039985A1
Автор: Michael Richard Laningham, Robert Thomas Hembre, Scott Donald Barnicki, Stijn Van De Vyver, Sumit CHAKRABORTY, Vickie Haygood Osborne
Принадлежит: Eastman Chemical Co

Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.

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Номер записи: 98
06-02-2020 дата публикации

SULFUR OXOACID-SUBSTITUTED AND PHOSPHORUS OXOACID-SUBSTITUTED POLYAROMATIC RESINS AND SALTS THEREOF AS PROMOTERS IN ACRYLATE PRODUCTION FROM COUPLING REACTIONS OF OLEFINS AND CARBON DIOXIDE

Номер: US20200039912A1
Автор: HLAVINKA Mark L., Iacono Pasquale
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

This disclosure provides for catalyst systems and processes for forming an α,β-unsaturated carboxylic acid or a salt thereof. In an aspect, the catalyst system can comprise: a transition metal precursor comprising a Group 8-11 transition metal and at least one first ligand; optionally, at least one second ligand; an olefin; carbon dioxide (CO); a diluent; and an oxoacid anion-substituted polyaromatic resin comprising a sulfonated polyaromatic resin, a phosphonated polyaromatic resin, a sulfinated polyaromatic resin, a thiosulfonated, or a thiosulfinated polyaromatic resin, and further comprising associated metal cations. Methods of regenerating the polyaromatic resin with associated metal cations are described. 1. A catalyst system for forming an α ,β-unsaturated carboxylic acid or a salt thereof , the catalyst system comprising:a) a transition metal precursor comprising a Group 8-11 transition metal and at least one first ligand;b) optionally, at least one second ligand;c) an olefin;{'sub': '2', 'd) carbon dioxide (CO);'}e) a diluent; andf) an oxoacid anion-substituted polyaromatic resin comprising a sulfonated polyaromatic resin, a phosphonated polyaromatic resin, a sulfinated polyaromatic resin, a thiosulfonated, or a thiosulfinated polyaromatic resin, and further comprising associated metal cations.2. The catalyst system according to claim 1 , wherein the catalyst system further comprises a metalalactone compound or an adduct of a metalalactone compound and the oxoacid anion-substituted polyaromatic resin.3. The catalyst system according to claim 1 , wherein the oxoacid anion-substituted polyaromatic resin has a) an average particle size from about 0.1 mm to about 1.0 mm claim 1 , b) an average pore diameter from about 50 nm to about 250 nm claim 1 , or c) both an average particle size from about 0.1 mm to about 1.0 mm and an average pore diameter from about 50 nm to about 250 nm.4. The catalyst system according to claim 1 , wherein:the oxoacid anion-substituted ...

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Номер записи: 99
18-02-2021 дата публикации

Methods of controlling surface tension

Номер: US20210046465A1
Автор: David L. Ramage, Rene Zamarripa
Принадлежит: LyondellBasell Acetyls LLC

Reactor liquids, compositions, and methods of forming acetic acid, which may reduce catalyst loss. The reactor liquids and compositions may include, and the methods may use, a tri-aliphatic hydrocarbyl phosphine oxide. The carbonylation catalyst used in the methods may include rhodium. A composition comprising: acetic acid; water; and at least one tri-aliphatic hydrocarbyl phosphine oxide; wherein the acetic acid is present in the composition at an amount of about 60% to about 80%, by weight, based on the weight of the composition; wherein the water is present in the composition at an amount of about 0.1% to about 6%, by weight, based on the weight of the composition; and wherein the at least one tri-aliphatic hydrocarbyl phosphine oxide is present in the composition at an amount of about 2% to about 20%, by weight, based on the weight of the composition.

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Номер записи: 100