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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6020. Отображено 100.
12-01-2012 дата публикации

Separation of Vapor Crude Alcohol Product

Номер: US20120010436A1
Автор: Adam OROSCO, David Lee, Lincoln Sarager, Radmila Jevtic, Trinity Horton, Victor J. Johnston
Принадлежит: Celanese International Corp

Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream.

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Номер записи: 1
09-02-2012 дата публикации

Process to remove product alcohol from a fermentation by vaporization under vacuum

Номер: US20120035398A1
Автор: Joseph J. Zaher, Michael Charles Grady, Robert W. Sylvester, William D. Parten
Принадлежит: BUTAMAX ADVANCED BIOFUELS LLC

A fermentation liquid feed including water and a product alcohol and optionally CO 2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO 2 . The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.

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Номер записи: 2
23-08-2012 дата публикации

Process to Remove Product Alcohol from a Fermentation by Vaporization Under Vacuum

Номер: US20120211348A1
Автор: Joseph J. Zaher, Michael Charles Grady, Robert W. Sylvester, William D. Parten
Принадлежит: Individual

A fermentation liquid feed including water and a product alcohol and optionally CO 2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO 2 . The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.

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Номер записи: 3
04-10-2012 дата публикации

Vent scrubbers for use in production of ethanol

Номер: US20120253084A1
Автор: Fred Ronald Olsson, Gerald Grusendorf, Ismael Tejeda, James Curtis, Nathan POWELL, Samuel Roundy, Victor J. Johnston, Wayne D. Picard
Принадлежит: Celanese International Corp

A process for producing ethanol comprising the steps of hydrogenating an acetic acid feed stream to form a crude ethanol product and separating at least a portion of the crude ethanol product to form an ethanol stream and at least one vent stream. The vent stream comprises non-condensable gases at least one volatile organic. The process further comprises the step of scrubbing the vent stream with at least two different solvents to recover the volatile organics. The vent stream may also comprise entrained ethanol, which may also be recovered.

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Номер записи: 4
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: 5
14-02-2013 дата публикации

Olefin Hydration Process with an Integrated Membrane Reactor

Номер: US20130041186A1
Автор: Aadesh Harale, Ibrahim Abba, Stephan Ralf Vogel, Wei Xu
Принадлежит: Saudi Arabian Oil Co

An olefin hydration process and reactor are provided, wherein an integrated membrane selectively removes alcohol product from the reactor, thereby allowing for increased yields.

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Номер записи: 6
21-02-2013 дата публикации

Method for producing optically active, racemic menthol

Номер: US20130046118A1
Автор: Christoph JÄKEL, Eike Johannes Bergner, Gabriele Gralla, Gunnar Heydrich, Joachim Schmidt-Leithoff, Klaus Ebel, Marko Friedrich, Matthias Rauls, Nawid Kashani-Shirazi, Rocco Paciello, Steffen OEHLENSCHLÄGER, Wolfgang Krause
Принадлежит: BASF SE

The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps a.1) catalytic hydrogenation of neral and/or geranial to give citronellal, b.1) cyclization of citronellal to isopulegol in the presence of an acidic catalyst, c.1) purification of isopulegol by crystallization and d.1) catalytic hydrogenation of isopulegol to give menthol.

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Номер записи: 7
21-03-2013 дата публикации

PROCESS FOR REFINING CHEMICALS FROM PULP AND PAPER MILL WASTEWATERS

Номер: US20130072724A1
Автор: Hewitt L. Mark, MacLatchy Deborah L., Milestone Craig Brennan
Принадлежит: Her Majesty The Queen in the Right of Canada, as Represented by the Minister of Environment

A process for isolating at least one target compound, such as manool, geranyl linalool, ethyl guaiacol, eugenol, veratraldehyde, squalene, terpin, cholesterol, beta-sitosterol, campesterol, stigmasterol, stigmastenol and dehydroabietic acid, from biomass, the process including steps of: obtaining a condensate from a recovery evaporator, a reverse osmosis retentate of a condensate of a pulp and paper mill, or both, the condensate, retentate or both being substantially free of higher molecular weight (approximately > Da) cellulose and/or lignin and/or lignin-derived material; optionally pH adjusting and filtering the condensate to collect insoluble material; extracting the condensate, the collected insoluble material, or both, with solid phase extraction (SPE), liquid-liquid extraction or solid-liquid extraction to produce an extract containing the at least one target compound; and optionally purifying the extract containing the at least one target compound by thermal fractionation, chromatographic separation, recrystallization ion exchange, chelation, adsorption/desorption, lyophilization and sublimation or combinations thereof. The method is particularly useful for isolating the target compounds from wastewaters produced in a kraft pulp and paper mill, especially from recovery evaporator condensates produced during the treatment of black liquor. 1. A process for enriching or isolating a target compound from pulp and paper waste water , said process comprising the steps of:obtaining a condensate from a recovery evaporator or a reverse osmosis (RO) retentate of condensates of a pulp and paper mill, or both, the condensate, retentate or both being substantially free of higher molecular weight cellulose and/or lignin and/or lignin-derived material,extracting the condensate with an organic solvent by solid phase extraction (SPE), liquid-liquid extraction or solid-liquid extraction to produce an extract containing said target compounds, andoptionally, purifying the target ...

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Номер записи: 8
23-05-2013 дата публикации

Method for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the side-streams in trimethylolpropane production

Номер: US20130131391A1
Автор: Frey Guido D., Kreickmann Thorsten, Nowotny Norman, Strutz Heinz
Принадлежит: OXEA GMBH

The present invention relates to a process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane, wherein an aqueous solution of these fractions and residues is catalytically hydrogenated in the presence of an acidic compound and, after removing solids, contacted both with basic and with acidic ion exchangers. A trimethylolpropane-enriched product stream can be distilled out of the aqueous eluate obtained, leaving ditrimethylolpropane as the distillation residue. 1. Process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane , characterized in that:(a) these high-boiling fractions and residues are combined and water is added to produce an aqueous solution;(b) the aqueous solution produced according to step a) is treated at a temperature of 160 to 280° C. and at a pressure of 1 to 30 MPa with hydrogen in the presence of a catalyst and of an acidic compound;(c) the aqueous solution obtained according to step b) is removed from the catalyst and further solids, if present;(d) the aqueous solution obtained according to step c) is treated both with basic and with acidic ion exchangers;(e) water and low boilers present are removed from the aqueous eluate obtained according to step d); and(f) a trimethylolpropane-enriched product stream is distilled out of the residue obtained after step e) at elevated temperature and reduced pressure, leaving ditrimethylolpropane as the distillation residue.2. Process according to claim 1 , characterized in that the aqueous solution according to step a) is produced at a temperature of more than 50° C.3. Process according to claim 1 , characterized in that the treatment of the aqueous solution in step b) with hydrogen is effected at a temperature ...

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Номер записи: 9
20-06-2013 дата публикации

METHOD FOR SEPARATING BUTANOL

Номер: US20130158303A1
Автор: Bai Jianxin, Chen Xiaochun, Chen Yong, Lin Xiaoqing, Qian Wenbin, Wu Jinglan, Xie Jingjing, Xiong Jian, Ying Hanjie
Принадлежит:

Disclosed is a method for separating butanol. The method uses hydrophobic macroporous polymer adsorbent to separate butanol in a mixed solution, and the process comprises the following steps: 1) using macroporous polymer adsorbent to adsorb butanol in a mixed solution; 2) desorbing butanol from macroporous polymer adsorbent. The method is simple; the separation time is short; the efficiency of butanol recovery is high; and the separating cost is low. 110-. (canceled)11. A method for separating butanol , comprising the following steps:1) adsorbing butanol in a mixed solution by a hydrophobic macroporous polymer adsorbent to reach saturation;2) desorbing butanol from the macroporous polymer adsorbent through a method of thermal desorption.12. The method according to claim 11 , wherein the adsorption temperature in the step 1) is 30˜37° C.13. The method according to claim 12 , wherein the step 1) comprises the step of shaking the mixed solution at a rate of 20˜250 rpm during adsorption.14. The method according to claim 11 , wherein the weight volume ratio (g/mL) of the hydrophobic macroporous polymer adsorbent to the mixed solution used in the step 1) is 1:50.15. The method according to claim 11 , wherein the desorption temperature in the step 2) is above 120° C.16. The method according to claim 11 , wherein the initial concentration of the butanol in the mixed solution is 5˜350 g/L.17. The method according to claim 16 , wherein the mixed solution further comprises ethanol and acetone.18. The method according to claim 17 , wherein acetone claim 17 , butanol claim 17 , and ethanol are from fermentation broth.19. The method according to claim 18 , wherein the butanol is n-butanol.20. The method according to claim 11 , wherein the method further comprising the step of regenerating the hydrophobic macroporous polymer adsorbent.21. The method according to claim 20 , wherein the regeneration of the hydrophobic macroporous polymer adsorbent and desorption of the butanol are ...

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Номер записи: 10
18-07-2013 дата публикации

Process for the production of dimethyl ether

Номер: US20130184498A1
Автор: Mitchell E. Loescher
Принадлежит: CATALYTIC DISTILLATION TECHNOLOGIES

A process for the production of dimethyl ether from a methanol reactor effluent is disclosed. The process may include: contacting an aqueous extractant comprising water and an effluent from a methanol synthesis reactor comprising methanol and one or more of methane, water, carbon monoxide, carbon dioxide, hydrogen, and nitrogen. At least a portion of the methanol partitions into the aqueous extractant; recovering an extract fraction comprising the aqueous extractant and methanol. The extract fraction is fed to a catalytic distillation reactor system for concurrently: contacting the methanol with catalyst in a reaction zone thereby catalytically reacting at least a portion of the methanol to form dimethyl ether and water; and fractionating the resulting dimethyl ether and the water to recover a first overheads fraction comprising dimethyl ether and a first bottoms fraction comprising water.

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Номер записи: 11
08-08-2013 дата публикации

Method And Apparatus For Heat Restoration In A Pervaporation Process Concentrating Ethanol

Номер: US20130204051A1
Автор: Pasanen Antti
Принадлежит: STI Biofuels OY

The invention relates to a method and an apparatus for dewatering mixture of ethanol and water. The method for dewatering mixture of ethanol and water in a pervaporation process arranged to dewater ethanol, to the retentate, from water as enriched to the permeate. In the method at least one of the streams of the permeate that is about to be cooled, before the entry of the stream into a vaporizer () arranged to vaporize at least partly once processed ethanol-water mixture by the pervaporation process, or another permeate stream upstream of pervaporation unit, is taken (HEXI) in the cooling phase of said at least one of the streams of the permeate, so that said heat taken is at least partly directed as secondary energy into the use for heating of the mixture of the ethanol and the water that is entering into the pervaporation unit, which is arranged to dewater the mixture of the ethanol and water by pervaporation. The invention relates also to a heat exchanger, use of the heat exchanger in general, but specifically in a pervaporation process for de-watering of ethanol-water mixture. The invention also relates to pervaporation unit comprising such a heat exchanger, and also to utility unit for ethanol rectification using the heat exchanger. 1. A method for dewatering mixture of ethanol and water comprising a pervaporation process arranged to dewater ethanol , to the retentate , from water as enriching to the permeate , wherein the heat , of at least one of the streams of the permeate that is about to be cooled , before the entry of the stream into a vaporizer arranged to vaporize at least partly once processed ethanol-water mixture by the pervaporation process , or another permeate stream upstream of pervaporation unit , is taken (HEXI) in the cooling phase of said at least one of the streams of the permeate , and said heat taken is at least partly directed as secondary energy into the use for heating of the mixture of the ethanol and the water that is entering into ...

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Номер записи: 12
29-08-2013 дата публикации

Polycarbonate made from low sulfur bisphenol a and containing converions material chemistry, and articles made therefrom

Номер: US20130221837A1
Автор: Christian Wold, Christopher Luke Hein, Eric BRANDER, Hatem Abdallah Belfadhel, Johannes DE BROUWER, Marcel Vieveen, Thomas L. Evans
Принадлежит: SABIC INNOVATIVE PLASTICS IP BV

In one embodiment, a process for producing a bisphenol A product comprises: reacting phenol with acetone in the presence of a sulfur containing promoter to obtain a reaction mixture comprising bisphenol A, phenol, and the promoter; after reacting the phenol with the acetone, cooling to form a crystal stream comprising crystals of bisphenol A and phenol; separating the crystals from the crystal steam; melting the crystals to form a molten stream of bisphenol A, phenol, and sulfur; contacting the molten stream with a base to reduce a sulfur concentration in the molten stream and form a reduced sulfur stream; and removing phenol from the reduced sulfur stream to form a bisphenol A product.

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Номер записи: 13
03-10-2013 дата публикации

Process for the preparation of directly compressible beta mannitol

Номер: US20130261346A1
Автор: Eugen Schwarz, Martin Erdmann, Walter Hamm
Принадлежит: Merck Patent GmBH

The present invention relates to a process for the preparation of directly compressible mannitol having a content of the δ modification of greater than 90%.

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Номер записи: 14
03-10-2013 дата публикации

Temporary desulphurization reactor for pre-treating a hydrocarbon feed before steam reforming with a view to hydrogen production

Номер: US20130261351A1
Автор: Cedric Nebois, Fabrice Giroudiere, MICHEL Thomas
Принадлежит: IFP Energies Nouvelles IFPEN

The present invention describes a process for pre-treating a steam reforming feed containing sulphur-containing compounds, using two desulphurization reactors: a temporary desulphurization reactor ( 1010 ) containing an active adsorbent solid; a permanent desulphurization reactor ( 1003 ) placed upstream of the steam reforming unit, which contains an adsorbent solid in the passivated state, necessitating a depassivation phase in order to be rendered active; the temporary desulphurization reactor ( 1010 ) being disconnected as soon as the adsorbent solid of the permanent desulphurization reactor ( 1003 ) has been activated, and the volume of the temporary desulphurization reactor being in the range 1/20 to 1/200 times the volume of the permanent desulphurization reactor.

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Номер записи: 15
24-10-2013 дата публикации

Unsaturated fatty alcohol compositions and derivatives from natural oil metathesis

Номер: US20130281688A1
Автор: David R. Allen, Keith M. WAMPLER, Randal J. Bernhardt, Ryan LITTICH, Stephen A. Di Biase
Принадлежит: Elevance Renewable Sciences Inc

Unsaturated alcohol compositions are obtained by reducing a metathesis-derived hydrocarbyl unsaturated ester. Also disclosed is a process for preparing an unsaturated alcohol composition, where a metathesis derived hydrocarbyl carbonyl compound is reacted in the presence of a silane compound, an organic solvent, and a catalyst system prepared from a metallic complex and a reducing agent. This mixture is then hydrolyzed with a metallic base, and then mixed with organic solvent. The resultant mixture is then separated, washed, dried, and/or purified to produce the unsaturated alcohol composition. The unsaturated alcohol derivatives are useful in many end-use applications, including, for example, lubricants, functional fluids, fuels, functional additives for such lubricants, functional fluids and fuels, plasticizers, asphalt additives, friction reducing agents, plastics, and adhesives.

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Номер записи: 16
14-11-2013 дата публикации

PHARMACEUTICAL COMPOSITIONS COMPRISING MONOTERPENES

Номер: US20130303807A1
Автор: Chen Thomas, Levin Daniel, Puppali Satish
Принадлежит:

The present invention provides a process for purifying a monoterpene or sesquiterpene having a purity greater than about 98.5% (w/w). The process comprises the steps of derivatizing the monoterpene (or sesquiterpene) to produce a monoterpene (or sesquiterpene) derivative, separating the monoterpene (or sesquiterpene) derivative, and releasing the monoterpene (or sesquiterpene) from the derivative. Also encompassed by the scope of the present invention is a pharmaceutical composition comprising a monoterpene (or sesquiterpene) having a purity greater than about 98.5% (w/w). The purified monoterpene can be used to treat a disease such as cancer. The present monoterpene (or sesquiterpene) may be administered alone, or may be co-administered with radiation or other therapeutic agents, such as chemotherapeutic agents. 1. A process for purifying (S)-perillyl alcohol comprising the steps of:(a) derivatizing a mixture comprising (S)-perillyl alcohol to form a perillyl alcohol derivative;(b) crystallizing the perillyl alcohol derivative;(c) separating the perillyl alcohol derivative crystals from the mixture;(d) releasing the (S)-perillyl alcohol from the separated perillyl alcohol derivative from step (c); and,(e) isolating the (S)-perillyl alcohol from step (d), wherein the isolated (S)-perillyl alcohol has a purity of greater than about 98.5% (w/w).2. The process of claim 1 , wherein the perillyl alcohol derivative is a perillyl alcohol ester.3. The process of claim 2 , wherein the ester is a benzoate ester.4. The process of claim 3 , wherein the benzoate ester is 3 claim 3 ,5-dinitrobenzoate ester.5. The process of claim 1 , wherein the isolated (S)-perillyl alcohol has a purity of greater than about 99.0% (w/w).6. The process of claim 5 , wherein the isolated (S)-perillyl alcohol has a purity of greater than about 99.5% (w/w).7. The process of claim 1 , wherein the mixture further comprises natural-product-derived or other impurities. This application is a continuation ...

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Номер записи: 17
28-11-2013 дата публикации

PROCESS FOR PRODUCING VOLATILE ORGANIC COMPOUNDS FROM BIOMASS MATERIAL

Номер: US20130317259A1
Автор: HAMILTON Phillip Guy, Kreitman Keith Michael, Radtke Corey William
Принадлежит: SHELL OIL COMPANY

Embodiments of the present invention provide for production and recovery of ethanol or other volatile organic compounds, such as acetic acid, from solid biomass material. One embodiment comprises introducing a biomass material to a compartment of a solventless recovery system, wherein the biomass material contains one or more volatile organic compounds; contacting the biomass material with a superheated vapor stream in the compartment to vaporize at least a portion of an initial liquid content in the biomass material, said superheated vapor stream comprising at least one volatile organic compound; separating a vapor component and a solid component from the heated biomass material, said vapor component comprising at least one volatile organic compound; and retaining at least a portion of the gas component for use as part of the superheated vapor stream. 1. A method for the recovery of a volatile organic compound from a biomass material comprising:introducing a biomass material to a compartment of a solventless recovery system, wherein the biomass material contains one or more volatile organic compounds;contacting the biomass material with a superheated vapor stream in the compartment to vaporize at least a portion of an initial liquid content in the biomass material, said superheated vapor stream comprising at least one volatile organic compound;separating a vapor component from a solid component of the heated biomass material, said vapor component comprising at least one volatile organic compound; andretaining at least a portion of the gas component for use as at least part of the superheated vapor stream.2. The method of further comprising maintaining the superheated vapor stream at a target temperature.3. The method of wherein at least a portion of the superheated vapor stream has a temperature in the range of about 104 degrees C. to about 372 degrees C.4. The method of wherein the maintaining step comprises using a heat exchange component coupled to the ...

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Номер записи: 18
28-11-2013 дата публикации

SMB PROCESS FOR THE PURIFICATION OF ETHANOL AND BUTANEDIOL WITH INTEGRATED REGENERATION

Номер: US20130317261A1
Автор: Keswani Rahul K., Mahmood Wahab, Oroskar Asha A., Sharma Deepak
Принадлежит: OROCHEM TECHNOLOGIES, INC.

Disclosed is an improved SMB process incorporating novel regeneration steps for the separation of ethanol associated oxygenates such as butanediol from a dilute mixture of ethanol and associated oxygenates in water in the presence of organic compounds derived from a biofermentation process. Applicant discovered that increasing the number of raffinate streams alone or in combination with a hot regeneration zone within the SMB cycle can significantly reduce the capital and operating costs associated with the incorporation of the SMB process in a complex for the production of ethanol and butanediol from biofermentation effluent. The process is useful for removing water from dilute aqueous mixtures of organic compounds comprising ethanol in dilute concentration in water and produced by fermentation, biomass extraction, biocatalytic and enzymatic processes which are not economically recoverable by conventional distillation methods. 1. A multi-raffinate simulated moving bed (SMB) process for the separation of ethanol and butanediol from an aqueous biomass effluent stream from a fermentor , said biomass effluent stream comprising water , ethanol , butanediol , acetic acid , and suspended solids , said multi-raffinate SMB process having an SMB zone comprising a desorption zone , a rectification zone , an adsorption zone , and at least one regeneration zone , said process comprising:a. passing the aqueous biomass effluent stream to a pretreatment zone including a naturation zone and a filtration zone to provide an SMB feed stream;{'sub': 1', '3, 'b. passing the SMB feed stream at an effective feed temperature and a mobile phase desorbent stream at an effective desorbent temperature, said mobile phase desorbent stream comprising a Cto Calcohol to the SMB zone comprising a plurality of n adsorbent beds each adsorbent bed having a top and a bottom, wherein the desorption zone, rectification zone, adsorption zone, and the at least one regeneration zone comprise one or more of ...

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Номер записи: 19
26-12-2013 дата публикации

ALCOHOL CONCENTRATION METHOD

Номер: US20130345479A1
Автор: Yamauchi Kunio
Принадлежит: NISSIN FOODS HOLDINGS CO., LTD.

The present invention relates to an alcohol concentration method which comprises sealing in an alcohol aqueous solution by a laminate formed by extrusion lamination of polyethylene terephthalate onto at least one surface of an air permeable film-shaped substrate; and storing the alcohol aqueous solution in the laminate for a predetermined period of time, whereby the alcohol in the alcohol aqueous solution can be concentrated easily and conveniently. 1. An alcohol concentration method , including following steps of:sealing in an alcohol-containing aqueous solution by a laminate formed by extrusion lamination of polyethylene terephthalate onto at least one surface of an air permeable film-shaped substrate; andstoring the alcohol-containing aqueous solution in the laminate for a predetermined period of time.2. The alcohol concentration method according to claim 1 , wherein the polyethylene terephthalate is homopolyethylene terephthalate.3. The alcohol concentration method according to claim 1 , wherein the laminated surface in the laminate formed by extrusion lamination of the polyethylene terephthalate is heat sealable.4. The alcohol concentration method according to claim 1 , wherein the substrate is paper or a nonwoven fabric.5. The alcohol concentration method according to claim 1 , wherein an inherent viscosity of the polyethylene terephthalate is 0.72 to 0.88 dL/g.6. The alcohol concentration method according to claim 1 , wherein the extrusion lamination is performed by a laminating method which comprises extruding molten polyethylene terephthalate through a die for lamination claim 1 , wherein an air gap ranging from an opening of the die to the supporting substrate is 25 cm or less.7. A laminate for use in the alcohol concentration method according to claim 1 , wherein the laminate is formed by extrusion laminating polyethylene terephthalate onto at least one surface of an air permeable film-shaped substrate. This invention relates to a method for concentrating ...

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Номер записи: 20
16-01-2014 дата публикации

Process to Remove Product Alcohol from a Fermentation by Vaporization under Vacuum

Номер: US20140018581A1
Автор: Grady Michael Charles, Parten William D., Sylvester Robert W., Zaher Joseph J.
Принадлежит: BUTAMAX ADVANCED BIOFUELS LLC

A fermentation liquid feed including water and a product alcohol and optionally COis at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO. The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine. 127-. (canceled)28. A method for removing a product alcohol from a fermentation liquid , comprising:{'sub': '2', '(a) at least partially vaporizing a fermentation liquid wherein a vapor stream is produced, the fermentation liquid and the vapor stream each comprising an amount of water, butanol, and optionally CO; and'}(b) contacting the vapor stream with an absorption liquid under vacuum conditions wherein at least a portion of the vapor stream is absorbed into the absorption liquid to form an absorption liquid phase,{'sub': '2', 'wherein the portion of the vapor stream that is absorbed includes an amount of each of the water and the butanol, and optionally CO, and'}wherein temperature at the onset of the absorption of the vapor stream into the absorption liquid is greater than temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid.29. The method of claim 28 , wherein the absorption liquid comprises a water soluble organic molecule with a boiling point at least about 30° C. greater than the boiling point of water at atmospheric pressure.30. The method of claim 28 , wherein the organic molecule is ...

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Номер записи: 21
30-01-2014 дата публикации

Dehydrator

Номер: US20140027367A1
Автор: Haruaki Hirayama, Hiroyuki Osora, Shinya Tachibana, Yukio Tanaka
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a dehydrator 1 configured to separate water from treated fluid, which includes a first tank 2 for storing the treated fluid before water is separated therefrom, a second tank 3 into which the treated fluid whose water has been separated therefrom flows, a separation membrane configured to separate water from the treated fluid, and a plurality of membrane container units 101 through 110 provided between the first tank 2 and the second tank 3 and in parallel to one another along a direction of flow of the treated fluid. The treated fluid is configured to reciprocate between the first tank 2 and the second tank 3 and is configured to pass through the plurality of membrane container units for a plurality of times.

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Номер записи: 22
06-02-2014 дата публикации

Methods for producing bioderived propylene glycol

Номер: US20140039224A1
Автор: Brad Zenthoefer, Chicheng Ma, John G. Soper, Kevin J. Adlaf, Paul D. Bloom, William Chris HOFFMAN
Принадлежит: Archer Daniels Midland Co

In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product.

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Номер записи: 23
06-03-2014 дата публикации

METHOD AND APPARATUS FOR PROCESSING GLYCOL

Номер: US20140066668A1
Автор: "Lorenz, Geib Richard S., II John dArc"
Принадлежит:

Methods and apparatus for processing glycol according to various aspects of the present technology comprise a multi-stage treatment system that is configured to receive a feedstock from multiple waste stream sources containing glycol. A pre-treatment stage may be configured to process the incoming the feedstock and provide to a primary treatment stage a water/glycol solution that is substantially identical and allows for a primary treatment process that is not dependent upon the originating source of the glycol feedstock. A post-treatment stage may further process and purify the water/glycol solution. 1. A system for removing impurities from an incoming waste stream of glycol feedstock , comprising: receive the incoming waste stream of glycol feedstock according to a first set of identified impurities; and', 'process the incoming waste stream of glycol feedstock according to the first set of identified impurities to produce a water/glycol solution;, 'a pre-treatment system comprising a processing line configured toa primary treatment system downstream from the pre-treatment system and configured to receive the water/glycol solution and remove additional impurities from the water/glycol solution; anda post treatment system downstream from the primary treatment system and configured to receive the water/glycol solution from the primary treatment system and remove residual impurities from the water/glycol solution not captured by the pre-treatment system and the primary treatment system.2. A system for removing impurities from an incoming waste stream of glycol feedstock according to claim 1 , wherein the processing line is a first processing line claim 1 , the pre-treatment system further comprises a second processing line different than the first processing line and configured to:receive the incoming waste stream of glycol feedstock according to a second set of identified impurities, the second set being different than the first set; andprocess the incoming second ...

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Номер записи: 24
07-01-2016 дата публикации

THIN-FILM TREATMENT OF HIGH-VALUE GLYCOL AND AMINE SOLVENTS TO REMOVE CONTAMINANTS

Номер: US20160001197A1
Автор: HAGERMAN David Thomas, Jr. Irwin John, Seward
Принадлежит:

A method cleaning a contaminate solvent used to treat a gas stream, for example a contaminated glycol or a contaminated amine stream, by vacuum evaporation using a mechanically-maintained horizontally-orientated thin film evaporator, where the contaminant material is recovered from the thin film in solvent- free form, as either a heavy organic material or as free flowing salts. 1. A steady-state method of treating a contaminated solvent stream with a horizontal thin film evaporator having a heated substrate surface , the process comprising: i. an amine, a glycol, or mixture thereof, and', 'ii. one or more contaminants comprising salts, organics, solids, or mixtures thereof;, 'a. providing to the horizontal thin film evaporator a feed stream of contaminated solvent comprising'}b. forming and mechanically maintaining a thin film of contaminated solvent disposed on the substrate surface at sub-atmospheric pressure, said thin film having a thickness, wherein the thin film is repeatedly wiped to provide additional contaminated solvent to maintain a film thickness and to move the film along the substrate surface;c. introducing a sparge gas above the thin film to facilitate removal of the vapor phase from the evaporator,d. recovering a tops vapor phase comprising the solvent, wherein the concentration of contaminants in the recovered solvent is substantially reduced from the concentration of contaminants in the feed stream, ande. recovering a bottoms phase from the substrate surface, wherein the bottoms phase recovered from the substrate surface comprises contaminants and is a flowable solid material or a tar-like material, said contaminant material comprising less than 20% by weight solvent.2. The method of claim 1 , wherein the bottoms phase recovered from the substrate surface comprises less than 10% by weight solvent.3. The method of claim 1 , wherein the bottoms phase recovered from the substrate surface comprises less than 5% by weight solvent.4. (canceled)5. The ...

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Номер записи: 25
04-01-2018 дата публикации

SILICA MEMBRANE FILTER

Номер: US20180001273A1
Автор: FURUKAWA Masahiro, Miura Aya
Принадлежит: NGK Insulators, Ltd.

A silica membrane filter includes an ultrafiltration membrane , which is disposed on a support body and which contains an element as a primary component, and a silica membrane which is disposed on the ultrafiltration membrane and which has an aryl group. The ultrafiltration membrane has a structure infiltrated by Si of the silica membrane , the atomic ratio A (=Si/M) of Si to the element M in a membrane-side region , which is a region corresponding to 25% of the ultrafiltration membrane from the silica membrane , satisfies 0.01≦A≦0.5, and the ratio A/B of the atomic ratio A to the atomic ratio B (=Si/M) in a base-material-side region , which is a region corresponding to 25% from the support body , is within the range of 1.1 or more. 1. A silica membrane filter comprising:an ultrafiltration membrane which is disposed on a support body and which contains an element M as a primary component; anda silica membrane which is disposed on the ultrafiltration membrane and which has an aryl group,wherein the ultrafiltration membrane has a structure infiltrated by Si of the silica membrane, the atomic ratio A (=Si/M) of Si to the element M in a membrane-side region, which is a region corresponding to 25% of the ultrafiltration membrane from the silica membrane, satisfies 0.01≦A≦0.5, and the ratio A/B of the atomic ratio A to the atomic ratio B (=Si/M) in a base-material-side region, which is a region corresponding to 25% of the ultrafiltration membrane from the support body, is within the range of 1.1 or more.2. The silica membrane filter according to claim 1 , wherein the silica membrane has at least one of a p-tolyl group and a phenyl group.3. The silica membrane filter according to claim 1 , wherein the atomic ratio A of the ultrafiltration membrane satisfies 0.1≦A≦0.5.4. The silica membrane filter according to claim 1 , wherein the ratio A/B of the ultrafiltration membrane satisfies 1.2≦A/B.5. The silica membrane filter according to claim 1 , wherein the atomic ratio B of ...

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Номер записи: 26
07-01-2021 дата публикации

PROCESS OF SEPARATING COMPONENTS OF A FERMENTATION BROTH

Номер: US20210002194A1
Автор: Burk Mark J., CLARK Warren, Japs Michael
Принадлежит:

A process of isolating 1,4-butanediol (1,4-BDO) from a fermentation broth includes separating a liquid fraction enriched in 1,4-BDO from a solid fraction comprising cells, removing water from said liquid fraction, removing salts from said liquid fraction, and purifying 1,4-BDO. A process for producing 1,4-BDO includes culturing a 1,4-BDO-producing microorganism in a fermentor for a sufficient period of time to produce 1,4-BDO. The 1,4-BDO-producing microorganism includes a microorganism having a 1,4-BDO pathway having one or more exogenous genes encoding a 1,4-BDO pathway enzyme and/or one or more gene disruptions. The process for producing 1,4-BDO further includes isolating 1,4-BDO. 131-. (canceled)32. A process of isolating 1 ,4-BDO from a fermentation broth comprising removing a portion of solids by disc stack centrifugation to provide a liquid fraction , removing a further portion of solids from the liquid fraction by ultrafiltration , removing a portion of salts from the liquid fraction by nanofiltration , removing a further portion of salts from the liquid fraction by ion exchange , evaporating a portion of water , and distilling 1 ,4-BDO.33. The process of claim 32 , wherein the step of removing a further portion of salts by ion exchange comprises passing the liquid fraction through an ion exchange column selected from the group consisting of a cation exchange column claim 32 , an anion exchange column claim 32 , a mixed-bed ion exchange column claim 32 , and combinations thereof.34. The process of claim 32 , wherein the step of evaporating a portion of water comprises passing the liquid fraction through an evaporator system claim 32 , said evaporator system comprising an effect selected from the group consisting of a falling film evaporator claim 32 , a short path falling film evaporator claim 32 , a forced circulation evaporator claim 32 , a plate evaporator claim 32 , a circulation evaporator claim 32 , a fluidized bed evaporator claim 32 , a rising film ...

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Номер записи: 27
07-01-2016 дата публикации

Divalent Ion Removal From Monoethylene Glycol (MEG) Feed Streams

Номер: US20160002130A1
Автор: Bussell Bryan A., Crawley-Boevey Simon, Jariwala Ankur D.
Принадлежит:

A system and process for removing divalent ions from a MEG feed stream is presented. The system includes a chemical treatment tank where chemicals are mixed with the feed stream to form insoluble carbonate and hydroxide salts. The system also includes a membrane-type solid-liquid separation unit that receives the feed stream from the chemical treatment tank and separates it into a filtrate containing MEG and a retentate containing the insoluble salts. The system may also include washing the retentate to remove additional MEG, which is then recycled to a MEG regeneration or reclamation process. The system may also include a dryer that receives waste slurry from the solid-liquid separation unit and dries it to form a solid waste, thereby facilitating its handling, storage, and disposal. 1. A system for removing divalent ions from a feed stream having MEG mixed with produced water , the system comprising:a chemical treatment tank arranged to receive the feed stream and react chemicals mixed with the feed stream to form insoluble carbonate and hydroxide salts; anda membrane-type solid-liquid separation unit arranged to receive the reacted feed stream from the chemical treatment tank and separate the reacted feed stream into a filtrate and a retentate;a return line between the membrane-type solid-liquid separation unit and the chemical tank, the return line arranged to receive wash water used to wash the retentate and return the wash water to the chemical treatment tank.2. A system according to wherein the chemical treatment tank has a temperature ranging from approximately 10° C. (50° F.) to approximately 100° C. (212° F.).3. A system according to wherein the chemical treatment tank has a temperature ranging from approximately 50° C. (122° F.) to approximately 85° C. (185° F.).4. A system according to wherein the chemical treatment tank has a residence time ranging from approximately five minutes to approximately sixty minutes.5. A system according to wherein the ...

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Номер записи: 28
04-01-2018 дата публикации

PROCESS FOR PREPARING ETHYLENE GLYCOL FROM A CARBOHYDRATE

Номер: US20180002258A1
Автор: Gruter Gerardus Johannes Maria, van der Waal Jan Cornelis
Принадлежит:

Ethylene glycol is prepared from a carbohydrate source in a process, 1. Process for preparing ethylene glycol from a carbohydrate source ,wherein hydrogen, the carbohydrate source, a liquid diluent and a catalyst system are introduced as reactants into a reaction zone;wherein the catalyst system comprises a tungsten compound and at least one hydrogenolysis metal selected from the groups 8, 9 or 10 of the Periodic Table of the Elements;wherein the diluent that is introduced into the reaction zone comprises an alkylene glycol; andwherein the carbohydrate source is reacted with hydrogen in the presence of the catalyst system to yield an ethylene glycol-containing product.2. Process according to claim 1 , wherein the diluents comprises ethylene glycol.3. Process according to claim 1 , wherein the carbohydrate source is selected from the group consisting of polysaccharides claim 1 , oligosaccharides claim 1 , disaccharides claim 1 , and monosaccharides.4. Process according to claim 1 , wherein the carbohydrate source is selected from the group consisting of cellulose claim 1 , starch claim 1 , hemicellulose claim 1 , hemicellulose sugars claim 1 , glucose and combinations thereof.5. Process according to claim 1 , wherein the catalyst system comprises a tungsten compound that has an oxidation state of at least +2.6. Process according to claim 1 , wherein the catalyst system comprises a tungsten compound selected from the group consisting of tungstic acid (HWO) claim 1 , ammonium tungstate claim 1 , ammonium metatungstate claim 1 , ammonium paratungstate claim 1 , tungstate compounds comprising at least one Group 1 or 2 element claim 1 , metatungstate compounds comprising at least one Group 1 or 2 element claim 1 , paratungstate compounds comprising at least one Group 1 or 2 element claim 1 , tungsten oxide (WO) claim 1 , heteropoly compounds of tungsten claim 1 , and combinations thereof.7. Process according to claim 6 , wherein the catalyst system comprises tungstic acid ...

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Номер записи: 29
20-01-2022 дата публикации

METHOD FOR PRODUCING ISOPROPYL ALCOHOL

Номер: US20220017440A1
Автор: Ishizuki Masanari, Sera Akira, Shinagawa Masashi
Принадлежит: TOKUYAMA CORPORATION

A method for producing isopropyl alcohol is provided in which propylene is hydrated directly with water to produce isopropyl alcohol, the method including: a distillation step in which crude isopropyl alcohol is distilled; and a filtration step in which the isopropyl alcohol obtained in the distillation step is filtered through a filter having an ion-exchange group. 1. A method for producing isopropyl alcohol through direct hydration of propylene with water , the method comprising:a distillation step of distilling crude isopropyl alcohol; anda filtration step of filtering isopropyl alcohol obtained from the distillation step with a filter having an ion-exchange group.2. The method for producing isopropyl alcohol according to claim 1 , wherein a contact time in the filtration step is 100 to 1000 seconds.3. The method for producing isopropyl alcohol according to claim 1 , wherein a differential pressure in the filtration step is 100 kPa or less.4. The method for producing isopropyl alcohol according to claim 1 , wherein the filter having an ion-exchange group has a particle removal diameter of 1 nm or more and less than 20 nm.5. The method for producing isopropyl alcohol according to claim 1 , wherein isopropyl alcohol which has been filtered comprises a total of less than 5 ppb by mass of organic impurities having a molecular weight of 100 or more and less than 140.6. The method for producing isopropyl alcohol according to claim 1 , further comprising claim 1 , prior to the filtration step claim 1 , a pre-filtering step of filtering the isopropyl alcohol obtained from the distillation step with a filter having no ion-exchange group.7. The method for producing isopropyl alcohol according to claim 6 , wherein the isopropyl alcohol obtained from the distillation step is filtered more than once in the pre-filtering step. The present invention relates to a method for producing isopropyl alcohol.Metallic impurities included in various semiconductor processing liquids used ...

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Номер записи: 30
14-01-2016 дата публикации

Method for Producing a Water Soluble Menthol Compounds having Antibacterial, Anti-Inflammatory, and Bacteriostatic Effects

Номер: US20160009616A1
Автор: Hsin Wen Hsiang Wayne
Принадлежит:

A method for producing water soluble menthol compound produces a menthol compound that is soluble in alcohol and ether, yet insoluble in water. The menthol compound provides antibacterial, anti-inflammatory, and bacteriostatic effects when combined with other compounds to produce numerous medical and consumable compositions, including, without limitation, eye drops, mouth wash, juices, and noodles. In some embodiments, the produced menthol compound is a menthol water-soluble sodium salt or sylvite. However in other embodiments, the menthol compound may include a menthol crystal configuration. The steps include: adding a metal to a menthol solution. Enabling the reaction; dissolving the solid mixture; applying osmosis membrane dialysis to the dissolved solid mixture; filtering, drying, and washing the solid mixture; decompressing and removing water from the solid mixture; and collecting the water soluble menthol compound. 1. A method for producing water soluble menthol , the method comprising:adding an alkali metal to a menthol solution;enabling a reaction between the metal and the menthol solution;collecting a solid mixture formed by the reaction;dissolving the solid mixture;applying osmosis membrane dialysis to the dissolved mixture;preparing the solid mixture for collection; andcollecting the water soluble menthol compound.2. The method of claim 1 , wherein the water soluble menthol compound is a water soluble sodium salt or sylvite of menthol.3. The method of claim 2 , wherein the step of adding a metal to a menthol solution occurs in a nitrogen atmosphere.4. The method of claim 3 , wherein the step of adding a metal to a menthol solution forms a mole ratio of about 1:1.1 to 1.3.5. (canceled)6. The method of claim 4 , wherein the menthol solution is contains an ethereal solution or alcohol solution.7. The method of claim 6 , wherein the ethereal solution is diethyl ether or diethylene oxide.8. The method of claim 7 , wherein the alcohol solution is ethanol.9. The ...

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Номер записи: 31
09-01-2020 дата публикации

WATER-ALCOHOL SEPARATION SYSTEM AND WATER-ALCOHOL SEPARATION METHOD FOR PRODUCING ALCOHOL

Номер: US20200009507A1
Автор: HIDAKA Hideto, Sato Yohei
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

The invention provides a water-alcohol separation system and a method for water-alcohol separation for producing a high purity alcohol while achieving energy saving as the whole process. Namely, a water-alcohol separation system including plural separation membrane modules connected in series, a vacuum apparatus for reducing a pressure at a permeated side of each of the separation membrane modules, and a condenser for condensing a vapor that has passed through a membrane, in which plural independent vacuum systems reduce the pressure at the permeated side of the membrane of the separation membrane modules. 1. A water-alcohol separation system comprising:a plurality of separation membrane modules connected in series,a vacuum apparatus for reducing the pressure at a permeated side of a membrane of each of the separation membrane modules, anda condenser for condensing a vapor that has passed through the membrane, wherein:a plurality of independent vacuum systems which have at least two vacuum apparatus and condensers reduce the pressure at the permeated side of the membrane of each of the separation membrane modules.2. The water-alcohol separation system according to claim 1 , wherein:the plurality of the independent vacuum systems comprise at least a first vacuum system and a second vacuum system, and{'sub': 1', '2, 'a pressure Pat a vacuum side of a membrane of a separation membrane module placed most downstream in a first membrane module unit depressurized by the first vacuum system is higher than a pressure Pat a vacuum side of a membrane of a separation membrane module placed most downstream in a second membrane module unit depressurized by the second vacuum system.'}3. The water-alcohol separation system according to claim 1 , wherein the plurality of the independent vacuum systems comprise at least a first vacuum system and a second vacuum system; the first vacuum system is provided with a first condenser claim 1 , and the second vacuum system is provided with a ...

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Номер записи: 32
09-01-2020 дата публикации

POROUS CHIRAL MATERIALS AND USES THEREOF

Номер: US20200009531A1
Автор: Cheng Peng, Shi Wei, YAN Xiu-Ping, YANG Cheng-Xiong, Zaworotko Michael J., ZHANG Shi-Yuan
Принадлежит:

A porous chiral material of formula [M(L)(A)]Xwherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and Xis an anion 1. A porous chiral material of formula [M(L)(A)]X wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X is an anion.2. A porous chiral material according to wherein M is selected from a group consisting of: cobalt claim 1 , chromium claim 1 , iron claim 1 , nickel claim 1 , manganese claim 1 , calcium claim 1 , magnesium claim 1 , cadmium claim 1 , copper and zinc.3. A porous chiral material according to wherein L is selected from a group consisting of: 4 claim 1 ,4′-bipyridine claim 1 , 1 claim 1 ,2-bis(4-pyridyl)ethane claim 1 , and 4 claim 1 ,4′-bipyridylacetylene.4. A porous chiral material according to wherein A is the anion of (S)-(−)-mandelic acid.5. A porous chiral material according to wherein X is a triflate ion.6. (canceled)7. A material of formula [M(L)(A)]XGwherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is an anion of mandelic acid or a related acid; X is an organic anion; G is a guest molecule; and n is from 0 to 5.8. (canceled)9. A crystalline sponge comprising a porous chiral material of formula [M(L)(A)]X.10. A method of separating enantiomers claim 1 , the method comprising contacting a composition comprising a mixture of enantiomers with a material of .11. (canceled)12. A method of separating enantiomers according to claim 10 , the method comprising passing a composition comprising the mixture of enantiomers through a chromatography column comprising as a stationary phase a chiral porous material of formula [M(L)(A)]X wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is an anion of mandelic acid or a related acid; and X is an anion.13. A method of separating enantiomers according to claim 12 , the method comprising:{'sub': '1.5', 'sup': +', '−, ...

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Номер записи: 33
10-01-2019 дата публикации

Method and system for recycling spent ethylene glycol from recovered aircraft de-icing solution

Номер: US20190010105A1
Автор: Bergeron Ghislain, Guy Michel, Lépine Mario
Принадлежит: AÉRO MAG 2000 RRR INC.

A method and a system for recycling spent ethylene or propylene glycol recovered from aircraft deicing solutions is described. The recovered spent ethylene or propylene glycol contains water and other undesirable substances which require to be removed to produce a solution free of these substances which can be further processed to remove substantially all of the water content and to blend-in additives required to certify the final glycol solution for aircraft deicing. The method and system employs a computer controller for continuous automatic batch processing of the spent glycol, including, in combination, filtering, distillation, blending and testing in specific sequences and achieves an improved quality recycled glycol of a purity of at least 99.5% and preferably between 99.6% to 99.9% glycol concentration. 1. A method of treating spent ethylene or propylene glycol recovered from aircraft de-icing solutions containing glycol , water , solids and other substances to produce substantially virgin glycol , said method comprising , in combination , the steps of:i) recovering in a collection reservoir, having a segmented storage means spent glycol from a tarmac of aircraft de-icing area to permit sampling by pumping said spent glycol solution through a densimeter to determine the glycol concentration in said spent glycol,ii) removing spent glycol having a predetermined low % concentration from the collection reservoir to produce a working spent glycol and pumping said working spent glycol in one or more storage a tanks,iii) filtering said working spent glycol from said one or more storage tanks through at least two filtering stages to substantially remove all remaining solids and substances followed by an evaporation step wherein said working spent glycol is heated to a temperature sufficient to evaporate only water to bring said working spent glycol to a glycol concentration of about 50% for storage in a buffer tank,iv) transferring said glycol having a concentration ...

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Номер записи: 34
03-02-2022 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

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

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

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Номер записи: 35
19-01-2017 дата публикации

Use Of A Fiber Conduit Contactor For Extraction

Номер: US20170014733A1
Автор: Massingill John Lee
Принадлежит:

Processes are provided which utilize fiber conduit reactors/contactors to effect extraction from a fluid stream, particularly a fermentation broth, a waste stream of a fermentation process, a fluid comprising a dye, or a fluid comprising a pharmaceutical compound. In particular, methods are provided which include introducing a first stream comprising an extractant and a second stream which is substantially immiscible with the first stream into a conduit reactor proximate a plurality of fibers. The streams are introduced into the conduit reactor such that they are in contact with each other and the extractant of the first stream interacts with the second stream to extract a fermentation product, a fermentation byproduct, a dye or a pharmaceutical compound from the second stream into the first stream. The method further includes receiving the first and second streams in collection vessel/s and withdrawing separately the first and second streams from collection vessel/s. 1. A method of chemical extraction , comprising:introducing a first stream comprising an extractant proximate a plurality of fibers positioned within a conduit contactor and extending proximate to one or more collection vessels;introducing a second stream into the conduit contactor proximate to the plurality of fibers, wherein the second stream is in contact with and is substantially immiscible with the first stream, wherein the second stream is a fermentation broth or a waste stream from a fermentation process, and wherein the first stream and the second stream are introduced into the conduit contactor such that the extractant of the first stream interacts with the second stream to extract a fermentation product and/or a fermentation byproduct from the second stream into the first stream;receiving the first and second streams in the one or more collection vessels; andwithdrawing separately the first and second streams from the one or more collection vessels.2. The method of claim 1 , wherein the first ...

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Номер записи: 36
19-01-2017 дата публикации

METHANOL PRODUCTION FROM METHANE AND CARBON DIOXIDE

Номер: US20170015611A1
Автор: STAUFFER John E.
Принадлежит:

Carbon dioxide is reacted with methane in a free radical reaction to produce methanol and carbon monoxide. A system for producing carbon dioxide as a feed ingredient for the process through electric power generator is disclosed. 1. A process for the production of methanol and carbon monoxide from methane and carbon dioxide in a single step comprising a free radical reaction conducted at about one atmosphere pressure and at a temperature in the range of 600° C. to 10000° C.2. A process for the production of methanol comprising the steps of:a. mixing carbon dioxide with methane at a temperature of between about 600° C. and 1000° C. in a free radical reaction to produce methanol and carbon monoxide; andb. separating the carbon monoxide from the methanol.3. The process of wherein the reactants carbon dioxide and methane are quenched after high temperature mixing.4. A process for the production of electric powers comprising the steps of:a. driving a turbine by combustion gas to produce flue gases;b. recovering carbon dioxide from flue gases produced in step (a); and{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'c. using the carbon dioxide in the process of to produce methanol.'} Existing technology relates to a process for the production of methanol wherein carbon dioxide is reacted with methane.Existing technology is capable of producing methanol from methane and carbon dioxide, however it is a long, tedious and expensive undertaking. Multiple reactions are required for which dedicated equipment is needed. Like many organic preparations, conversions are low and repeated separations are involved. At the heart of the process is the generation of synthesis gas with all that such chemistry implies: high pressure, elevated temperatures and finicky catalysts.To illustrate the known procedures for producing methanol, the following equations are helpful.CO+3 H→CHOH+HO   1.CH+HO→CO+3 H  2.Equation no. 1 represents the classical reaction for producing methanol from synthesis ...

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Номер записи: 37
19-01-2017 дата публикации

Divalent Ion Removal From Monoethylene Glycol (MEG) Feed Streams

Номер: US20170015612A1
Автор: Bussell Bryan Anthony, Crawley-Boevey Simon, Jariwala Ankur D.
Принадлежит:

A system and process for removing divalent ions from a MEG feed stream is presented. The system includes a chemical treatment tank where chemicals are mixed with the feed stream to form insoluble carbonate and hydroxide salts. The system also includes a solid-liquid separation unit that receives the feed stream from the chemical treatment tank and separates it into a liquids portion containing MEG and a insoluble salts portion. The system may also include washing the insoluble salts portion to remove additional MEG, which is then recycled to a MEG regeneration or reclamation process. The system may also include a dryer that receives waste slurry from the solid-liquid separation unit and dries it to form a solid waste, thereby facilitating its handling, storage, and disposal. 1. A system for removing divalent ions from a feed stream having MEG mixed with produced water , the system comprising:a chemical treatment tank arranged to receive the feed stream and react chemicals mixed with the feed stream to form insoluble carbonate and hydroxide salts; anda solid-liquid separation unit arranged to receive the reacted feed stream from the chemical treatment tank and separate the reacted feed stream into a liquids portion and an insoluble salts portion;a return line arranged to receive wash water used to wash the insoluble salts portion and return the wash water to the chemical treatment tank.2. A system according to wherein the chemical treatment tank has a temperature ranging from approximately 10° C. (50° F.) to approximately 100° C. (212° F.).3. A system according to wherein the chemical treatment tank has a temperature ranging from approximately 50° C. (122° F.) to approximately 85° C. (185° F.).4. A system according to wherein the chemical treatment tank has a residence time ranging from approximately five minutes to approximately sixty minutes.5. A system according to wherein the residence time is approximately thirty minutes.6. A system according to wherein the ...

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Номер записи: 38
18-01-2018 дата публикации

Method for the Pervaporation and Vapor-Permeation Separation of Gas-Liquid Mixtures and Liquid Mixtures by SAPO-34 Molecular Sieve Membrane

Номер: US20180015420A1
Автор: CURULLA-FERRE Daniel, Sun Yuhan, Sun Zhiqiang, ZHANG Yanfeng
Принадлежит:

The present invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture or a liquid mixture by a SAPO-34 molecular sieve membrane, which comprises: 1) mixing an Al source, tetraethyl ammonium hydroxide, water, a Si source and a P source, and subjecting the resultant to hydrothermal crystallization, then centrifuging, washing and drying to get SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 molecular sieve seeds onto the inner surface of a porous support tube; 3) synthesis of a SAPO-34 molecular sieve membrane tube; 4) calcining the obtained SAPO-34 molecular sieve membrane tube to obtain a SAPO-34 molecular sieve membrane; 5) using the SAPO-34 molecular sieve membrane obtained from step 4) to perform separation of a gas-liquid mixture or a liquid mixture via a process of pervaporation separation or vapor-permeation separation. The invention has the advantages of very high methanol selectivity and permeation flux, and provides an efficient and energy-saving separation way via pervaporation or vapor-permeation separation. 1. A method for pervaporation separation of a gas-liquid mixture or a liquid mixture by preparing and using a SAPO-34 molecular sieve membrane , characterized in that the method comprises:1) mixing and dissolving an Al source, tetraethyl ammonium hydroxide TEAOH, water, a Si source and a P source to make a reaction liquor for seeds, which is then subjected to crystallization for 4-7 h by heating at 170-210° C., then centrifuging, washing and drying to get SAPO-34 molecular sieve seeds;{'sub': 2', '3', '2', '5', '2', '2, 'wherein the molar ratio of the Al source, P source, Si source, tetraethylammonium hydroxide and all water in the reaction liquor for seeds is 1 AlO: 1-2 PO: 0.3-0.6 SiO: 1-3 TEAOH: 55-150 HO.'}2) coating the SAPO-34 molecular sieve seeds onto the internal surface of a porous support tube to get a porous support tube coated with SAPO-34 molecular sieve seeds;3) synthesizing a SAPO- ...

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Номер записи: 39
18-01-2018 дата публикации

Pervaporation and Vapor-Permeation Separation of Gas-Liquid Mixtures and Liquid Mistures by Ion Exchanged SAPO-34 Molecular Sieve Membrane

Номер: US20180015421A1
Автор: CURULLA-FERRE Daniel, Sun Yuhan, Sun Zhiqiang, ZHANG Yanfeng
Принадлежит:

The invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture/liquid mixture by an ion-exchanged SAPO-34 molecular sieve membrane, said method comprises the following steps: 1) synthesis of SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 molecular sieve seeds onto the inner surface of a porous support; 3) synthesis of SAPO-34 molecular sieve membrane; 4) performing ion exchange and calcination; 5) using the ion-exchanged SAPO-34 molecular sieve membrane obtained in step 4) to perform the separation of a gas-liquid mixture or a liquid mixture by a process of pervaporation separation or vapor-permeation separation. The present method for membrane separation of methanol-dimethyl carbonate has advantages like low energy consumption, being not limited by azeotropic mixture, high methanol flux and high separation factors and thus has great economic value. 1. A method for the separation of a gas-liquid mixture or a liquid mixture by preparing and using an ion-exchanged SAPO-34 molecular sieve membrane , said method comprises the following steps:{'sub': 2', '3', '2', '5', '2', '2, '1) mixing and dissolving an Al source, tetraethyl ammonium hydroxide (TEAOH), water, a Si source and a P source to make reaction liquor for seeds, which is then subjected to crystallization for 4-7 h by heating at 170-210° C., then centrifuging, washing and drying to get SAPO-34 molecular sieve seeds; wherein the molar ratio of the Al source, P source, Si source, tetraethylammonium hydroxide and all water in the reaction liquor for seeds is :1 AlO: 1-2 PO: 0.3-0.6 SiO: 1-3 TEAOH : 55-150 HO;'}2) coating the SAPO-34 molecular sieve seeds onto the inner surface of a porous support to get a porous support coated with SAPO-34 molecular sieve seeds; A. uniformly mixing an Al source, a P source, a Si source, tetraethylammonium hydroxide, di-n-propyl amine (DPA), water and a fluoride to form a mother liquor for SAPO-34 molecular sieve membrane ...

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Номер записи: 40
19-01-2017 дата публикации

NANOPOROUS FILMS DERIVED FROM POLYCYCLO-OLEFINIC BLOCK POLYMERS

Номер: US20170015790A1
Автор: Bell Andrew, Burtovyy Oleksandr, Vogt Bryan D., YE CHANGHUAI
Принадлежит:

A nanoporous film formed from a series of vinyl addition block polymers derived from functionalized norbornene monomers are disclosed and claimed. The nanoporous films as disclosed herein are useful as pervaporation membranes and antireflective coatings among various other uses. Also disclosed herein are the fabrication of nanoporous films into pervaporation membranes which exhibit unique separation properties, and their use in the separation of organic volatiles from biomass and/or organic waste, including butanol, phenol, and the like. The fabrication of nanoporous films into antireflective coatings are also disclosed. 3. The film according to claim 1 , wherein the diblock polymer is selected from the group consisting of:a diblock polymer derived from 5-hexylbicyclo[2.2.1]hept-2-ene and norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol (HexNB-b-HFANB);a diblock polymer derived from 5-butylbicyclo[2.2.1]hept-2-ene and norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol (BuNB-b-HFANB);a diblock polymer derived from 5-decylbicyclo[2.2.1]hept-2-ene and norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol (DecNB-b-HFANB); anda diblock polymer of derived from norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol and 2-(bicyclo[2.2.1]hept-5-en-2-yl)bicyclo[2.2.1]heptane (HFANB-b-NBANB).4. The film according to claim 2 , wherein the polymer is selected from the group consisting of:a triblock polymer derived from norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol, 5-decylbicyclo[2.2.1]hept-2-ene and norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol (HFANB-b-DecNB-b-HFANB);a triblock polymer derived from norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol, 5-butylbicyclo[2.2.1]hept-2-ene, and norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol (HFANB-b-BuNB-b-HFANB);a triblock polymer derived from norbornenyl-2-trifluoromethyl-3,3,3-trifluoropropan-2-ol, 5-octylbicyclo[2.2.1]hept-2-ene and 1-(4-(bicyclo[2.2.1]hept-5-en-2-yl)butyl)-3 ...

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Номер записи: 41
21-01-2016 дата публикации

METHOD FOR PRODUCING BUTANOL USING EXTRACTIVE FERMENTATION

Номер: US20160016870A1
Автор: BASHAM Thomas, Bolton Leslie William, Dobson Ian David, HANSON Sarah Richardson, Hurley Aidan, Kustedjo Karen, LUCY Andrew Richard, SONG Liang
Принадлежит:

The invention relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed by extraction into a water immiscible organic extractant during the fermentation. The invention also relates to a method for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible extractant composition. The invention further relates to compositions comprising a solution of butanol in a water immiscible organic extractant composition.

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Номер записи: 42
18-01-2018 дата публикации

Butanol Purification

Номер: US20180016215A1
Автор: Bolton Leslie William, Cheng Cecilia, Dobson Ian David, HOGBEN Andrew John, LUCY Andrew Richard, Sunley John Glenn
Принадлежит:

Provided are methods for removing one or more components from a butanol based composition. The methods comprise providing a butanol based composition comprising one or more components, targeting at least one component or a combination thereof for reduction, and processing said butanol based composition such that the at least one targeted component is substantially removed. The butanol based composition can, for example, be bio-produced. 125-. (canceled).26. A method for removing one or more components from a butanol based composition , the method comprising:a) providing a butanol based composition comprising one or more of the following components or combinations thereof: an acid, water, an alcohol, an aldehyde, a salt, a ketone, and an ester;b) targeting at least one component or a combination thereof for reduction; andc) processing said butanol based composition such that the at least one targeted component is substantially removed,wherein the targeted component is an acid and said processing step comprises contacting the butanol based composition with a base, a resin, or a combination thereof,wherein the targeted component is water and said processing comprises contacting the butanol based composition with a desiccant, a molecular sieve, a base, or a combination thereof,wherein the targeted component is an alcohol and said processing comprises contacting the butanol based composition with a base,wherein the targeted component is an aldehyde and said processing comprises contacting the butanol based composition with a base, a resin, or a combination thereof,wherein the targeted component is a salt and said processing comprises contacting the butanol based composition with a base, an anion exchange resin, or a combination thereof,wherein the targeted component is a ketone and said processing comprises contacting the butanol based composition with a base, a resin, or a combination thereof,wherein the targeted component is an ester and said processing comprises ...

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Номер записи: 43
28-01-2016 дата публикации

System For Removing Salt From A Rich Mono Ethylene Glycol Stream

Номер: US20160023977A1
Автор: Gary W. Sams, Joseph Min-Hsiun Lee
Принадлежит: Cameron Solutions Inc

A system for, and method of, recovering salt from fluid stream in a recycle loop of a flash separator has a desanding hydrocyclone located in the hot recycle loop of the flash separator; a first solids fluidization device located at the bottom end of the flash separator's brine column; a second desanding hydrocyclone arranged to receive a salt slurry stream created by the first solids fluidization device; and an accumulator located downstream of the second desanding hydrocyclone and having a second solids fluidization device located at its bottom end. Each solids fluidization device causes a motive fluid to exit the device in a swirling motion to fluidize the salt components contained in the resident fluid. The overflow from the second desanding hydrocyclone is the motive fluid for the brine column and a produced water, condensate water, or seawater stream is the motive fluid for the accumulator.

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Номер записи: 44
26-01-2017 дата публикации

METHOD FOR PRODUCING MAGNESIUM ALCOHOLATE

Номер: US20170022130A1
Автор: Kobayashi Hitoshi
Принадлежит:

The purpose of the present invention is to provide a spherical or ellipsoidal magnesium alcoholate having a narrow particle size distribution even when the particle size is small. 1. A method for producing a magnesium alcoholate comprising:adding in a portionwise manner to a reaction system and reacting, metallic magnesium, an alcohol, and at least one of a halogen or a halogen atom-containing compound in a reaction system under alcohol reflux,wherein a mixture of metallic magnesium, an alcohol, and at least one of a halogen or a halogen atom-containing compound is added to the reaction system at each portionwise addition.2. The method for producing a magnesium alcoholate according to claim 1 , wherein a frequency of portionwise addition of said mixture is less than 10 times.3. The method for producing a magnesium alcoholate according to claim 1 ,wherein a mass ratio of metallic magnesium and alcohol and a mass ratio of metallic magnesium and halogen or halogen atom-containing compound in said mixture that is added in a portionwise manner is set to be substantially constant at each portionwise addition.4. The method for producing a magnesium alcoholate according to claim 1 ,wherein an interval of portionwise addition of said mixture is set to be substantially constant.5. The method for producing a magnesium alcoholate according to claim 1 ,wherein the halogen or the halogen-containing compound is reacted in an amount of 0.0001 gram atom or more, relative to one gram atom of the metallic magnesium.67-. (canceled) The present invention relates to a method for producing a magnesium alcoholate used for preparing a solid catalyst component for olefin polymerization or the like.Priority is claimed on Japanese Patent Application No. 2011-229527, filed Oct. 19, 2011, the content of which is incorporated herein by reference.As a solid catalyst component for olefin polymerization, spherical magnesium alcoholates having an average particle diameter of 60 μm or more, a less ...

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Номер записи: 45
26-01-2017 дата публикации

Energy efficient ethanol recovery by adsorption

Номер: US20170022131A1
Автор: Kevin William Hettenbach
Принадлежит: Joule Unlimited Technologies Inc

A method and system for recovering a volatile organic compound from a dilute aqueous phase. The method may include separating volatile organic compound from the aqueous phase by using carrier gas to generate a solvent-laden vapor stream, feeding a solvent-laden vapor stream to a mass of carbon adsorbent and enabling the solvent to be absorbed and separated from the solvent-laden vapor stream, releasing the absorbed volatile organic compound, and condensing the released volatile organic compound to form a condensate. The system may include a vapor phase source containing ethanol, at least one carbon bed containing a mass of coconut shell carbon, a steam source in fluid communication with the carbon bed, and a condenser in fluid communication with the carbon bed. The method and system may also utilize microbeads as an absorbent and may be configured so the capacity is scalable from lab scale to production scale.

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Номер записи: 46
28-01-2016 дата публикации

METHOD FOR MANUFACTURING ORGANIC PROCESSING FLUID FOR PATTERNING OF CHEMICAL AMPLIFICATION TYPE RESIST FILM, ORGANIC PROCESSING FLUID FOR PATTERNING OF CHEMICAL AMPLIFICATION TYPE RESIST FILM, PATTERN FORMING METHOD, METHOD FOR MANUFACTURING ELECTRONIC DEVICE, AND ELECTRONIC DEVICE

Номер: US20160026088A1
Автор: IGUCHI Naoya, KAWAMOTO Takashi, Yamanaka Tsukasa
Принадлежит: FUJIFILM Corporation

There is disclosed a method for manufacturing an organic processing fluid for patterning of a chemical amplification type resist film, comprising a step of causing a fluid containing an organic solvent to pass through a filtration device having a fluid input portion, a fluid output portion, and a filtration filter film provided in a flow path that connects the fluid input portion and the fluid output portion with each other, wherein an absolute value (|T−T|) of a difference between a temperature (T) of the fluid in the fluid input portion and a temperature (T) of the fluid in the fluid output portion is 3° C. or lower, a filtration speed of the fluid in the filtration device is 0.5 L/min/mor greater, and a filtration pressure by the fluid in the filtration device is 0.10 MPa or lower. 1. A method for manufacturing an organic processing fluid for patterning of a chemical amplification type resist film , the method comprising:a step of causing a fluid containing an organic solvent to pass through a filtration device having a fluid input portion, a fluid output portion, and a filtration filter film provided in a flow path that connects the fluid input portion and the fluid output portion with each other,{'sub': I', 'o', 'I', 'o, 'wherein an absolute value (|T−T|) of a difference between a temperature (T) of the fluid in the fluid input portion and a temperature (T) of the fluid in the fluid output portion is 3° C. or lower,'}{'sup': '2', 'a filtration speed of the fluid in the filtration device is 0.5 L/min/mor greater, and'}a filtration pressure by the fluid in the filtration device is 0.10 MPa or lower.2. The method for manufacturing an organic processing fluid for patterning of a chemical amplification type resist film according to claim 1 ,wherein the organic processing fluid is an organic developer.3. The method for manufacturing an organic processing fluid for patterning of a chemical amplification type resist film according to claim 2 ,wherein the fluid ...

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Номер записи: 47
24-04-2014 дата публикации

NANOSTRUCTURED CARBON MATERIALS FOR ADSORPTION OF METHANE AND OTHER GASES

Номер: US20140113811A1
Автор: AHN Channing, FULTZ Brent T., Murialdo Maxwell, STADIE Nicholas P.
Принадлежит:

Provided are methods for storing gases on porous adsorbents, methods for optimizing the storage of gases on porous adsorbents, methods of making porous adsorbents, and methods of gas storage of optimized compositions, as in systems containing porous adsorbents and gas adsorbed on the surface of the porous adsorbent. The disclosed methods and systems feature a constant or increasing isosteric enthalpy of adsorption as a function of uptake of the gas onto the exposed surface of a porous adsorbent. Adsorbents with a porous geometry and surface dimensions suited to a particular adsorbate are exposed to the gas at elevated pressures in the specific regime where n/V (density) is larger than predicted by the ideal gas law by more than several percent. 1. A method for storing a gas on a porous adsorbent , the method comprising the steps of:selecting a porous adsorbent having a first chemical composition;determining a first pore size distribution for the porous adsorbent having the first chemical composition, wherein the first pore size distribution provides a constant or increasing isosteric enthalpy of adsorption as a function of uptake of the gas on an exposed surface of the porous adsorbent;providing the porous adsorbent having a first plurality of ordered pore structures characterized by the first pore size distribution; andcontacting the porous adsorbent with the gas at a pressure sufficient to achieve adsorption of the gas on the porous adsorbent characterized by the constant or increasing isosteric enthalpy of adsorption as a function of uptake of the gas, thereby storing the gas on the porous adsorbent.2. The method of claim 1 , wherein the first pore size distribution provides the isosteric enthalpy of adsorption that increases as a function of uptake of the gas by at least 0.01 kJ mol/mmol g.3. The method of claim 1 , wherein the step of determining the first pore size distribution comprises steps of:providing the porous adsorbent;contacting the porous adsorbent ...

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Номер записи: 48
24-04-2014 дата публикации

GLYCERIN PURIFICATION METHOD

Номер: US20140114095A1
Автор: Kamikawa Masayuki, Kondo Takeyuki, Matsuo Toshiaki, Oka Kenichiro, Sase yasunari, Tanto Masashi
Принадлежит: Hitachi, Ltd.

This invention provides a cost-effective method for removing impurities from waste glycerin generated in the process of biodiesel production, so as to prevent a supercritical water reaction tube from clogging, when synthesizing acrolein by allowing supercritical water and acid to react with glycerin. The method for purification of glycerin of the invention comprises steps of: heating glycerin containing alkali metal, alcohol, organic fatty acid, and water under reduced pressure, so as to remove alcohol and water; adding sulfuric acid to glycerin from which alcohol and water have been removed, so as to neutralize glycerin; subjecting neutralized glycerin to centrifugation, so as to separate and remove a sulfate of alkali metal and organic fatty acid; adding a sulfate of alkaline earth metal to glycerin collected via centrifugation; and subjecting a mixture of glycerin and a sulfate of alkaline earth metal to centrifugation, so as to separate and remove a sulfate of alkali metal and an alkaline earth metal salt of organic fatty acid. 1. A method for purification of glycerin comprising steps of: heating glycerin containing an alkali metal , an alcohol , an organic fatty acid , and water under reduced pressure , so as to remove the alcohol and water; adding sulfuric acid to glycerin from which the alcohol and water have been removed , so as to neutralize glycerin; subjecting neutralized glycerin to centrifugation , so as to separate and remove a sulfate of alkali metal and the organic fatty acid; adding and mixing a sulfate of alkaline earth metal to glycerin collected via centrifugation; and subjecting a mixture of glycerin with the sulfate of alkaline earth metal to centrifugation , so as to separate and remove the sulfate of alkali metal and an alkaline earth metal salt of organic fatty acid.2. A method for purification of glycerin comprising allowing glycerin obtained by the method for purification according to to pass through cation-exchange resin claim 1 , so as ...

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Номер записи: 49
04-02-2016 дата публикации

System And Method For Producing Neopentyl Glycol

Номер: US20160031775A1
Автор: "OYoung Drow Lionel", Chan Yik Chung, Wibowo Christianto
Принадлежит:

The present invention describes a process for production of neopentyl glycol (NPG) from formaldehyde (FD) and isobutyraldehyde (IBD). FD and IBD first react to form hydroxypivaldehyde (HPD) in an aldol condensation step, then HPD is hydrogenated to form NPG in a hydrogenation step. The aldol condensation step is performed using a solid catalyst such as an ion exchange resin catalyst, which can be easily separated from the reaction product. The feed to the aldol condensation step is made homogeneous by adjusting the ratio of IBD, FD, and water in the feed or by adding a solvent that is miscible with both IBD and water. High purity NPG is recovered from the product of the hydrogenation step by a suitable method such as crystallization. 1. A method for producing neopentyl glycol from isobutyraldehyde , formaldehyde , and hydrogen , comprising the steps of:controlling the composition of feed to a first reaction step such that a homogeneous solution is formed;introducing the homogeneous solution to an aldol condensation reactor in the first reaction step, where at least a portion of the isobutyraldehyde and formaldehyde undergo an aldol condensation reaction to form a reaction mixture comprising hydroxypivaldehyde, in the presence of a suitable solid catalyst;separating excess and unreacted aldehydes from the reaction mixture and recycling the aldehydes to the aldol condensation reactor;contacting hydroxypivaldehyde with hydrogen in a hydrogenation reactor in a second reaction step, where hydroxypivaldehyde is converted to neopentyl glycol in the presence of a suitable hydrogenation catalyst;isolating highly pure neopentyl glycol from the reaction mixture from the hydrogenation reactor; andrecovering solvent from the reaction mixture from the hydrogenation reactor, so that the solvent can be recycled.2. The method according to claim 1 , where the aldol condensation reaction occurs at a temperature of from 40° C. to 100° C. claim 1 , a pressure of from 1 bar to 5 bar ...

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Номер записи: 50
02-02-2017 дата публикации

Phosphonic acid catalyst in dehydrative cyclization of 5 and 6 carbon polyols with improved color and product accountability

Номер: US20170029434A1
Автор: Alexandra Sanborn, Erik Hagberg, Kenneth STENSRUD, Stephen Howard
Принадлежит: Archer Daniels Midland Co

A process for preparing cyclic dehydration products from sugar alcohols is described. The process involve using a mixed-acid catalyst reaction mixture containing a reducing acid, having a pKa of about 1.0-1.5, and at least a strong Brønsted acid or a Lewis acid, having a pKa≦0, or both acids in a solution to dehydrate and ring close said sugar alcohol. Synergistically, the mixed-acid catalysis can produce greater amounts of the desired product at similar levels of compositional accountability than either of the component acid catalysts acting alone.

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Номер записи: 51
01-02-2018 дата публикации

System And Method To Remove Organic Acid From A Rich MEG Stream By Stripping

Номер: US20180029963A1
Автор: Knight David John, Langley Steven
Принадлежит:

A system and method for removing acetic acid and other short chain fatty acids described as organic acid from a rich mono-ethylene glycol (“MEG”) solution does so by stripping the organic acid from the rich MEG solution by contacting the solution with a gas, the gas being nitrogen or a fuel gas such as methane; and stripping the organic acid from the gas by contacting the gas with a caustic solution such as a dilute sodium hydroxide solution. The stripping steps take place in respective stripping columns. A portion of the gas exiting the gas/organic acid stripping column can be recycled to the MEG/organic acid stripping column to reduce total gas usage. A portion of the waste stream exiting the gas/organic acid stripping column can be recycled back to the gas/organic acid stripping column to reduce the amount of caustic solution used as well as the amount of waste. 1. A method for removing organic acid from a MEG stream , the method comprising:stripping the organic acid from the MEG stream after a hydrate inhibition use of the MEG stream by contacting the MEG stream with a gaswherein the MEG stream after the contact with the gas is substantially free of the organic acid.2. A method according to further comprising:stripping the organic acid contained in the gas that contacted the MEG stream by contacting the gas with a caustic solutionwherein the gas after the contact with the caustic solution is substantially free of the organic acid.3. A method according to further comprising recycling a portion of the gas for use in the stripping of the organic acid from the MEG stream.4. A method according to further comprising recycling a portion of a waste stream from the stripping of the organic acid contained in the gas for use in the stripping of the organic acid contained in the gas.5. A method according to wherein the caustic solution is a sodium hydroxide solution comprising about 1% sodium hydroxide.6. A method according to further comprising adjusting claim 1 , when ...

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Номер записи: 52
30-01-2020 дата публикации

Method for manufacturing calcium diglyceroxide

Номер: US20200031747A1
Автор: François Lacoste, Julien THIEL, Samy Halloumi, Valentin Lair
Принадлежит: Easyl SA

A method for manufacturing calcium diglyceroxide crystals includes at least the following steps: placing at least one calcium element source compound, in particular calcium oxide, in suspension in glycerol or in a homogeneous mixture of glycerol and an anhydrous glycerol solvent, in particular methanol, referred to as the “starting suspension”, the molar ratio being greater than or equal to 2; milling the starting suspension at an ambient temperature of less than or equal to 50° C. in a three-dimensional liquid-phase ball mill for a holding time of 15 minutes or less; recovering, at the outlet of the mill, a suspension of calcium diglyceroxide crystals, and optionally, washing the obtained suspension with a glycerol solvent in order to eliminate any excess glycerol, optionally, drying the suspension of calcium diglyceroxide crystals so as to obtain a powder of calcium diglyceroxide crystals. Also disclosed are uses associated with the calcium diglyceroxide crystals.

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Номер записи: 53
04-02-2021 дата публикации

CO-CRYSTALS

Номер: US20210032210A1
Автор: FRUTH-OPRISAN Victor, MITRAN Raul-Augustin, PONGRATZ Ingemar, POP Mihaela Maria, VASILICHIA BULIERIS Paula
Принадлежит:

The present document is directed to co-crystals of resveratrol and/or curcumin with piperazine and their use in medicine and/or as food and feed supplements. 1. A resveratrol-piperazine co-crystal , Form 1 , characterized by having an XRPD pattern comprising peaks at 4.48 , 13.32 , 16.96 , 18.88 , 19.16 , and 22.84 °2θ±0.2 °2θ.2. The resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , according to claim 1 , characterized by having an XRPD pattern according to Table 1.3. The resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , according to or claim 1 , characterized by having an XRPD pattern as shown in .4. The resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , according to any one of the preceding claims claim 1 , characterized by having a fusion temperature Tof 201° C.±5° C.5. The resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , according to any one of the preceding claims claim 1 , characterized by having a DSC thermogram as shown in .6. A method for producing the resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , as defined in any one of the preceding claims claim 1 , said method comprising the steps of:a) dispensing resveratrol in acetone or acetonitrile;b) adding piperazine in acetone or acetonitrile to the dispensed resveratrol of step a) thereby providing a resveratrol-piperazine mixture;c) optionally diluting the resveratrol-piperazine mixture obtained in step b) with acetone or acetonitrile;d) heating the resveratrol-piperazine mixture obtained in step b) or c) at a temperature within the range of from about 30° C. to about 50° C. under stirring for about 10-30 minutes thereby providing a resveratrol-piperazine suspension;e) allowing the resveratrol-piperazine suspension obtained in step d) to settle;f) separating a solid phase obtained in step e); andg) drying the separated solid phase of step f).7. A method for producing the resveratrol-piperazine co-crystal claim 1 , Form 1 claim 1 , as defined in any one ...

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Номер записи: 54
05-02-2015 дата публикации

Methods of facilitating the bioconversion of crude biodiesel-derived glycerol by microorganisms

Номер: US20150037832A1
Автор: Carmen Scholz, Geoffrey D. Bothun, Keerthi Prasad Venkataramanan
Принадлежит: Rhode Island Board of Education, University of Alabama in Huntsville

The present disclosure generally pertains to a method of facilitating the bioconversion of glycerol by microorganisms. In one embodiment, biodiesel derived crude glycerol is purified by removing fatty acids through acid precipitation. The fatty acid-free crude glycerol is then utilized as a carbon source for the culture of microorganisms and the production of value added substances. Additionally, the unsaturated fatty acids within the biodiesel-derived crude glycerol are converted to saturated fatty acids, allowing for fermentation behavior similar to that of pure glycerol. Both the cultured microorganisms and the culture media containing the purified crude glycerol may be analyzed for crude glycerol bioconversion products. The disclosure also relates to a method of increasing product yield through the addition of a second carbon source to the microorganism culture media.

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Номер записи: 55
11-02-2016 дата публикации

PHARMACEUTICAL COMPOSITIONS COMPRISING MONOTERPENES

Номер: US20160039730A1
Автор: Chen Thomas, Levin Daniel, Puppali Satish
Принадлежит:

The present invention provides a process for purifying a monoterpene or sesquiterpene having a purity greater than about 98.5% (w/w). The process comprises the steps of derivatizing the monoterpene (or sesquiterpene) to produce a monoterpene (or sesquiterpene) derivative, separating the monoterpene (or sesquiterpene) derivative, and releasing the monoterpene (or sesquiterpene) from the derivative. Also encompassed by the scope of the present invention is a pharmaceutical composition comprising a monoterpene (or sesquiterpene) having a purity greater than about 98.5% (w/w). The purified monoterpene can be used to treat a disease such as cancer. The present monoterpene (or sesquiterpene) may be administered alone, or may be co-administered with radiation or other therapeutic agents, such as chemotherapeutic agents. 2. The process of claim 1 , wherein the perillyl alcohol derivative is a perillyl alcohol ester.3. The process of claim 2 , wherein the ester is a benzoate ester.4. The process of claim 3 , wherein the benzoate ester is 3 claim 3 ,5-dinitrobenzoate ester.5. The process of claim 1 , wherein the isolated (S)-perillyl alcohol has a purity of greater than about 99.0% (w/w).6. The process of claim 5 , wherein the isolated (S)-perillyl alcohol has a purity of greater than about 99.5% (w/w).7. The process of claim 1 , wherein the mixture further comprises natural-product-derived or other impurities. This application is a continuation of U.S. application Ser. No. 13/939,834 filed Jul. 11, 2013, now U.S. Pat. No. 9,133,085, issued Sep. 15, 2015, which is a continuation of U.S. application Ser. No. 13/040,059 filed Mar. 3, 2011, now U.S. Pat. No. 8,507,734, issued Aug. 13, 2013 which claims priority to U.S. Provisional Application No. 61/310,231 filed Mar. 3, 2010, the disclosures of which are incorporated by reference in their entirety.The present invention relates to monoterpene or sesquiterpene compositions. In particular, the present invention relates to using ...

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Номер записи: 56
08-02-2018 дата публикации

Process Scheme To Improve Divalent Metal Salts Removal From Mono Ethylene Glycol (MEG)

Номер: US20180037527A1
Автор: Luis Eduardo Caires Fernandez
Принадлежит: Cameron International Corp

A MEG reclamation process includes the step of increasing above 2,000 ppm the divalent metal salts concentration of a rich (wet) MEG feed stream flowing into a precipitator. The increasing step includes routing a salts-saturated MEG slipstream from the flash separator it to the precipitator. The slipstream may be mixed with a fresh water feed stream, a portion of the rich MEG feed stream, or some combination of the two. The rich MEG feed stream also may be split into two streams, with a portion of the stream being heated and routed to the flash separator and the other portion being combined as above with the removed slipstream. The process can be performed on the slipstream after dilution and prior to entering the precipitator or after being loaded into the precipitator. Removal of the insoluble salts may be done in either a batch or continuous mode.

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Номер записи: 57
07-02-2019 дата публикации

PROCESSES TO CREATE MULTIPLE VALUE STREAMS FROM BIOMASS SOURCES

Номер: US20190039981A1
Автор: ALLEN Lloyd, Arato Claudio, BRIX Terry, CLARKE Peter Andrew, Davies Joshua, GENE Bryan, Kirby Mark, LEE Quak Foo, MCKEAN William, MUNJAPARA Ankit, Norton Clive Richard, STEIN Stuart A., Stock Greg, Sugden David
Принадлежит: Intercontinental Great Brands LLC

Use of diverse biomass feedstock in a process for the recovery of target C5 and C6 alditols and target glycols via staged hydrogenation and hydrogenolysis processes is disclosed. Particular alditols of interest include, but are not limited to, xylitol and sorbitol. Various embodiments of the present invention synergistically improve overall recovery of target alditols and/or glycols from a mixed C5/C6 sugar stream without needlessly driving total recovery of the individual target alditols and/or glycols. The result is a highly efficient, low complexity process having enhanced production flexibility, reduced waste and greater overall yield than conventional processes directed to alditol or glycol production. 1. A process , comprising:selecting a target alditol or a target blend of alditols,hydrogenating continuously a mixed C5/C6 monomer sugar stream to form a mixed C5/C6 alditol stream;isolating the target alditol or target blend of alditols from the mixed C5/C6 alditol stream to leave a residual mixed C5/C6 alditol stream;continuous hydrogenolysis of the residual mixed C5/C6 alditol stream to form a mixed C2-C4 glycol stream; andisolating a target glycol or target blend of glycols from the mixed C2-C4 glycol stream;wherein at least 10% of the overall target product yield is either target alditol/target blend of alditols or target glycol/target blend of glycols.23.-. (canceled)4. The process of claim 1 , wherein the monomer sugar stream or the mixed C5/C6 monomer sugar stream comprises greater than or equal to 60% C5 monomer sugar based on the combined total of C5 and C6 monomer sugars claim 1 , specifically greater than or equal to 65% C5 monomer sugar claim 1 , and more specifically greater than or equal to 70% C5 monomer sugar; orwherein the monomer sugar stream or the mixed C5/C6 monomer sugar stream comprises greater than or equal to 60% C6 monomer sugar based on the combined total of C5 and C6 monomer sugars, specifically greater than or equal to 65% C6 ...

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Номер записи: 58
06-02-2020 дата публикации

PROCESS FOR ENRICHING ENANTIOMERS FROM AN ENANTIOMER MIXTURE

Номер: US20200039904A1
Автор: Heydrich Gunnar, RAULS Matthias, WLOCH Sebastian
Принадлежит:

The present invention relates to a process for enriching enantiomers from an enantiomer mixture by a fractionating melt crystallization in a melt crystallization apparatus. The invention specifically relates to a process for producing an enantiomer-enriched chiral terpene, in particular of D/L-Isopulegol. The process comprises: 1. A process for enriching an enantiomer from an enantiomer mixture by a fractionating melt crystallization in a melt crystallization apparatus , comprisingi) a crystallization step to obtain a crystallizate and a mother melt and removal of the mother melt from the crystallizate to afford a mother melt fraction,ii) sweating of the crystallizate obtained in step i) to afford a molten sweating fraction and a sweated crystallizate, andiii) subsequent melting of the sweated crystallizate to afford a molten crystallizate fraction,wherein the optical rotation at least of the sweating fraction is determined online using a polarimeter and the changeover from step ii) to step iii) is controlled online by means of at least one control unit.2. The process according to claim 1 , wherein in order to control the changeover from step ii) to step iii)(a) a target value for the optical rotation of the sweating fraction is specified;(b) a maximum permitted control difference of the actual value from the target value for the optical rotation of the sweating fraction is specified;(c) the actual value for the optical rotation of the sweating fraction is determined;(d) the control unit effects the changeover from step ii) to step iii) not earlier than upon reaching the target value and not later than upon reaching the maximum permitted control difference of the actual value from the target value.3. The process according to claim 2 , wherein the maximum permitted control difference of the actual value from the target value is not more than 0.3° for a length of the measuring cell of the polarimeter of 1 dm claim 2 , a temperature of 25° C. and an employed wavelength ...

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Номер записи: 59
01-05-2014 дата публикации

RECOVERY OF MATERIALS FROM A MOTHER LIQUOR RESIDUE

Номер: US20140121417A1
Автор: Khadilkar Mohan, Oyevaar Martin, Youssef Ahmed
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

A process for recovery of materials from a mother liquor residue comprising cracking a mother liquor residue with an aromatic sulfonic acid catalyst to form a cracked product mixture and separating phenol from the cracked product mixture wherein the mother liquor residue results from distillation of a mother liquor resulting from bisphenol A synthesis and isolation. 1. A process for recovery of materials from a mother liquor residue comprising cracking the mother liquor residue with an aromatic sulfonic acid catalyst to form a cracked product mixture and separating phenol from the cracked product mixture wherein the mother liquor residue results from distillation of a mother liquor resulting from bisphenol A synthesis and isolation.2. The process of claim 1 , wherein separating phenol from the cracked product mixture occurs by adding the cracked product mixture to a distillation column which precedes it in the process.3. The process of claim 1 , wherein separating phenol from the cracked product mixture occurs in an additional distillation column.4. The process of claim 1 , wherein the aromatic sulfonic acid catalyst comprises p-toluenesulfonic acid or dodecylbenzene sulfonic acid.5. The process of claim 1 , wherein the aromatic sulfonic acid catalyst is present in an amount of 100 to 10 claim 1 ,000 parts per million by weight (ppm) of mother liquor residue.6. The process of claim 1 , wherein cracking occurs at a temperature of 100° C. to 300° C.7. The process of claim 1 , wherein cracking occurs at a pressure of 150 to 250 millimeters (mm) Hg.8. The process of claim 1 , wherein the mother liquor residue comprises 70 to 80 weight percent bisphenol A and isomers of bisphenol A and 0.5 to 3 weight percent phenol.9. The process of claim 1 , wherein greater than 50 weight percent of mother liquor residue is converted to phenol. This application claims the benefit of U.S. Provisional Patent Application No. 61/719,549 filed on Oct. 29, 2012, and which is hereby ...

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Номер записи: 60
15-02-2018 дата публикации

Epoxidation process

Номер: US20180044309A1
Автор: John Sullivan, Mansoor Husain, Shaun Mcgovern
Принадлежит: Scientific Design Co Inc

A method for the oxidation of ethylene to form ethylene oxide which comprises: providing an aqueous stream containing ethylene glycol and impurities; introducing the aqueous stream in a first ion exchange treatment bed to reduce the content of these impurities; determining whether an outlet of the first ion exchange treatment bed has a conductivity greater than about 5 μS/cm; upon determining that the outlet of the first ion exchange treatment bed has a conductivity greater than about 5 μS/cm, introducing the outlet of the first ion exchange treatment bed into a second ion exchange treatment bed; and upon determining that the outlet of the first ion exchange treatment bed has a conductivity greater than about 60 μS/cm, redirecting the introduction of the aqueous stream to the second ion exchange treatment bed and regenerating the first ion exchange bed.

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Номер записи: 61
03-03-2022 дата публикации

METHOD FOR PRODUCING 1,2-ALKANE DIOLS IN A SOLID DOSAGE FORM

Номер: US20220064089A1
Автор: SIEWERT Jürgen, STEPHAN Torsten
Принадлежит:

A process is proposed for producing 1,2-alkanediols in a solid dosing form, comprising or consisting of the following steps: 1. A process for producing 1 ,2-alkanediols in a solid dosing form , comprising the following steps:(a) providing a melt of at least one 1,2-alkanediol;(b) cooling the melt from step (a) to a temperature below the melting point of the 1,2-alkanediol or of the 1,2-alkanediol mixture to obtain a prescratched melt consisting of a supercooled 1,2-alkanediol or a supercooled 1,2-alkanediol mixture having a content of 1,2-alkanediol seed crystals;(c) contacting the mixture from step (b) with a cooled surface to obtain 1,2-alkanediols or 1,2-alkanediol mixtures in crystalline form.2. The process of claim 1 , wherein the at least one alkanediol is selected from 1 claim 1 ,2-alkanediols having 8 to 14 carbon atoms.3. The process of wherein the at least one 1 claim 1 ,2-alkanediol is selected from the group consisting of octane-1 claim 1 ,2-diol claim 1 , decane-1 claim 1 ,2-diol claim 1 , dodecane-1 claim 1 ,2-diol claim 1 , and tetradecane-1 claim 1 ,2-diol.4. The process of claim 1 , wherein the at least one 1 claim 1 ,2-alkanediol is selected from technical grade 1 claim 1 ,2-alkanediols having a 1 claim 1 ,2-alkanediol content of at least 92% by weight.5. The process of claim 1 , wherein the 1 claim 1 ,2-alkanediols or 1 claim 1 ,2-alkanediol mixtures in crystalline form produced in step (c) are 1 claim 1 ,2-alkanediols having a smooth or near-smooth surface.6. The process of claim 1 , wherein the melts are stirred while cooled in step (b).7. The process of claim 1 , where in step (b) the melts are cooled until the proportion of seed crystals in the prescratched melt is at least 1% by weight.8. The process of claim 1 , wherein additional seed crystals are added to the prescratched melt of step (b).9. The process of claim 1 , wherein the prescratched melt of step (b) is cooled with stirring until it has a torque/viscosity within a range of from ...

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Номер записи: 62
08-05-2014 дата публикации

Precursor for polyolefin catalyst

Номер: US20140128249A1
Автор: Ajay Kothari, Bhavesh Desai, Umesh Makwana, Virendrakumar Gupta
Принадлежит: Reliance Industries Ltd

The present invention provides titanium based precursor for polyolefin catalyst with desired morphology and high particle strength. The of preparation of the precursor in accordance with the present invention obviates the use of iodine.

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Номер записи: 63
23-02-2017 дата публикации

SIMULTANEOUS RECOVERY OF ORGANIC COMPOUNDS AND EXTRACTANTS

Номер: US20170050119A1
Автор: ROA ENGEL Carol Andrea, URBANUS Jan HARM, Verdoes Dirk
Принадлежит:

The invention relates to a method for recovering an organic compound from a feed stream comprising the steps of—extracting the organic compound into an organic solvent, thereby obtaining a mixture of the solvent and the organic compound; and—simultaneously crystallizing the solvent and the organic compound by cooling the mixture; and - separating the solid organic solvent and solid organic compound. 1. Method for recovering an organic compound from a liquid feed stream comprising the steps of:a liquid-liquid extraction, wherein the organic compound is extracted from the feed stream into an organic solvent, thereby obtaining an extract, which is a mixture of the organic solvent and the organic compound;simultaneously crystallizing the solvent and the organic compound by cooling said mixture; anda solid-solid separation step to separate the solid solvent and solid organic compound.2. Method according to claim 1 , wherein the solid solvent and solid organic compound are separated based on their difference in density or size.3. Method according to claim 1 , wherein the solid solvent and solid organic compound are separated by gravity settling claim 1 , flotation claim 1 , hydrocylones or centrifugation.4. Method according to claim 1 , wherein the solvent and the organic compound are simultaneously crystallized by cooling the mixture to a temperature equal to or lower than the eutectic temperature of the mixture.5. Method according to claim 1 , wherein the organic compound has a melting point in the range of −50-+250.6. Method according to claim 1 , wherein the organic compound is selected from the group consisting of carboxylic acids alcohols and cyclic esters.7. Method according to claim 1 , wherein the organic compound is selected from the group consisting of 1 claim 1 ,4 butanediol claim 1 , succinic acid claim 1 , formic acid claim 1 , malic acid claim 1 , 2 claim 1 ,5-furan dicarboxylic acid claim 1 , 3 hydroxypropionic acid claim 1 , aspartic acid claim 1 , ...

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Номер записи: 64
22-02-2018 дата публикации

CHEMICALLY AND UV CROSS-LINKED HIGH SELECTIVITY POLYIMIDE MEMBRANES FOR GAS SEPARATIONS

Номер: US20180050310A1
Автор: Liu Chunqing, Tran Howie Q.
Принадлежит:

This invention discloses a membrane composition, a method of making, and applications for a new type of high selectivity, high plasticization-resistant and solvent-resistant, both chemically and UV cross-linked polyimide membranes. Gas permeation tests on these membranes demonstrated that they not only showed high selectivities, but also showed extremely high COplasticization resistance under COpressure up to 4923 kPa (700 psig). This new type of high selectivity, high plasticization-resistant and solvent-resistant, both chemically and UV cross-linked polyimide membranes can be used for a wide range of gas separations such as separations of H/CH, He/CH, CO/CH, CO/N, olefin/paraffin separations (e.g. propylene/propane separation), O/N, iso/normal paraffins, polar molecules such as HO, HS, and NHmixtures with CH, N, H, and other light gases separations. The membranes can also be used for liquid separations such as in the removal of organic compounds from water. 5. A polyimide polymer membrane comprising the polyimide polymer of .6. The polyimide polymer membrane of is chemically and UV cross-linked.7. The polyimide polymer membrane of comprising a thin nonporous selective separation layer formed from the polyimide polymer with a plurality of repeating units of formula (I) and a porous nonselective mechanical support layer made from a material different from the polyimide polymer with a plurality of repeating units of formula (I).8. The polyimide polymer membrane of wherein said thin nonporous selective separation layer formed from the polyimide polymer with a plurality of repeating units of formula (I) is chemically and UV cross-linked.9. The polyimide polymer membrane of wherein said material different from the polyimide polymer with a plurality of repeating units of formula (I) is selected from the group consisting of polysulfones claim 7 , sulfonated polysulfones claim 7 , polyethersulfones (PESs) claim 7 , sulfonated PESs claim 7 , polyethers claim 7 , ...

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Номер записи: 65
23-02-2017 дата публикации

Divalent Cation Removal From Rich Monoethylene Glycol (MEG) Feed Streams By Ion Exchange

Номер: US20170050908A1
Автор: FERNANDEZ Luis Eduardo Caires, PHELPS Daniel W.
Принадлежит:

A system and process for removing divalent cations from a rich MEG feed stream is presented. An ion exchange bed containing a cation exchange resin adsorbs the divalent cations in the rich MEG feed stream as it flows through the ion exchange bed. After the divalent ions have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the feed stream flows through a distillation column to regenerate MEG. The spent cation exchange resin may be regenerated in place using a regeneration brine comprised of sodium chloride and water. After use, the regeneration brine may be disposed as waste or recycled to the brine storage tank and re-used to regenerate the cation exchange resin. 1. A system for removing divalent cations from a rich MEG feed stream , the system comprising:an ion exchange bed through which the rich MEG feed stream flows, the ion exchange bed containing a cation exchange resin that adsorbs the divalent cations in the rich MEG feed stream.2. A system according to further comprising a flash separator followed by a distillation column for reclaiming MEG from the rich MEG feed stream after the divalent cations have been removed.3. A system according to further comprising a distillation column for regenerating MEG from the rich MEG feed stream after the divalent cations have been removed.4. A system according to wherein a regeneration brine is used to regenerate the cation exchange resin without removing it from the ion exchange bed.5. A system according to wherein the regeneration brine is comprised of sodium chloride produced as the rich MEG feed stream is treated in the flash separator.6. A system according to wherein the regeneration brine is comprised of water produced as the rich MEG feed stream is treated in the distillation column.7. A system according to wherein the regeneration brine is held in a brine storage tank before it flows through the ion exchange bed.8. A system according to wherein ...

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Номер записи: 66
04-03-2021 дата публикации

PROCESS FOR ALDEHYDE REMOVAL FROM ALCOHOLS BY TREATMENT WITH BISULPHITE

Номер: US20210061739A1
Автор: Hasyagar Umesh Krishna, MARHOON-AL Ibrahim S., Nair Vinod S., Nandy Ritesh, Paul Somak
Принадлежит:

A method of purifying alcohol produced in a process that includes the Oxo process is disclosed. Aldehyde from the Oxo process that remains with the alcohol is removed by a reaction with an alkali sulphite to produce an insoluble adduct and alcohol having a reduced amount of aldehyde mixed with it. The adduct is removed from the alcohol by filtration. 1. A method of purifying a liquid that comprises (1) primarily alcohol and (2) aldehyde , the method comprising:adding an alkali bisulphite to the liquid to form (a) an adduct and (b) remaining fluid;separating the adduct from the remaining fluid by filtration, wherein the remaining fluid comprises less than 100 ppm aldehyde.2. The method of further comprising mixing the alcohol with the alkali bisulphite to form the adduct and the remaining fluid.3. The method of wherein the mixing is carried out for at least 30 minutes.4. The method of claim 2 , wherein the mixing is carried out by equipment that includes a stirrer.5. The method of claim 2 , wherein the mixing is carried out by equipment that includes a circulation system.6. The method of claim 2 , wherein the mixing is carried out by equipment that includes a continuous stirred tank reactor.7. The method of claim 1 , wherein formation of the adduct occurs at a temperature of 20° C. to 60° C.8. The method of claim 1 , wherein the liquid comprises primarily 2-ethylhexanol.9. The method of claim 1 , wherein the alkali bisulphite is sodium bisulphite.10. The method of claim 1 , wherein the liquid comprises 200 ppm to 2000 ppm aldehyde prior to the adding of the alkali bisulphite.11. The method of claim 1 , wherein the remaining fluid comprises less than 50 ppm aldehyde.12. The method of claim 1 , wherein 50 wt. % to 95 wt. % of the aldehyde is removed from the liquid to form the remaining fluid.13. The method of claim 1 , wherein at least 90 wt. % of the aldehyde is removed from the liquid to form the remaining fluid.14. The method of claim 1 , wherein the method further ...

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Номер записи: 67
04-03-2021 дата публикации

METHOD AND APPARATUS FOR FILTERING HEAT TRANSFER FLUID FROM A MONOETHYLENE GLYCOL STREAM

Номер: US20210061740A1
Автор: GHORBANI Nasser
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

Methods and apparatus for reclaiming monoethylene glycol from a produced hydrocarbon stream are described. The method includes directly contacting a stream containing monoethylene glycol (MEG) with a heat transfer fluid, vaporizing the MEG by transferring heat from the heat transfer fluid to the MEG to produce a vapor stream, liquefying the vapor stream to form a liquid stream, passing the liquid stream through a filter comprising an oleophilic material, and removing residual heat transfer fluid from the liquid stream using the filter. 1. A method , comprising:directly contacting a stream containing monoethylene glycol (MEG) with a heat transfer fluid (HTF);vaporizing the MEG by transferring heat from the HTF to the MEG to produce a rich MEG stream;condensing the rich MEG stream;passing the rich MEG stream through a filter comprising an oleophilic material; andremoving residual HTF from the liquid stream using the filter to form a clean MEG stream.2. The method of claim 1 , wherein the oleophilic material is a filter element having a form selected from the group consisting of a mesh claim 1 , a permeable sheet claim 1 , and a powder.3. The method of claim 1 , wherein the oleophilic material is an aromatic resin claim 1 , a polyacrylate claim 1 , or a mixture thereof.4. The method of claim 1 , further comprising detecting an amount of the HTF in the clean MEG stream.5. The method of claim 4 , further comprising determining an end point based on the amount of the HTF in the clean MEG stream.6. The method of claim 5 , further comprising claim 5 , upon determining the end point claim 5 , flushing the filter using a fluid miscible with the HTF.7. The method of claim 6 , wherein the fluid is a low polarity aprotic solvent.8. The method of claim 1 , further comprising separating water from the clean MEG stream to form a purified MEG stream.9. The method of claim 8 , further comprising:detecting an amount of the HTF in the clean MEG stream;determining an end point based on ...

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Номер записи: 68
05-03-2015 дата публикации

MICROWAVE ASSISTED CITRUS WASTE BIOREFINERY

Номер: US20150065698A1
Автор: Budarin Vitaliy Lvovich, Clark James Hanley, De Bruyn Mario, Pfaltzgraff Lucie Anne
Принадлежит:

There is described a method of isolating one or more of pectin, d-limonene, a flavour compound, a flavonoid, a soluble monosaccharide, a decomposition product of a monosaccharide and cellulose, from citrus material wherein said method comprises the microwave assisted hydrothermal low temperature treatment of citrus material. 1. A method of isolating one or more of pectin , d-limonene , a flavour compound , a flavonoid , a soluble monosaccharide , a decomposition product of a monosaccharide and cellulose , from citrus material wherein said method comprises the microwave assisted hydrothermal low temperature treatment of citrus material.2. A method according to wherein the isolation of one or more of pectin claim 1 , d-limonene claim 1 , a flavour compound claim 1 , a flavonoid claim 1 , a soluble monosaccharide claim 1 , a decomposition product of a monosaccharide and cellulose claim 1 , is conducted in a substantially acid free environment.3. A method according to wherein the citrus material is waste citrus material claim 1 , such as waste citrus peel.4. A method according to wherein the citrus material is combined with water and an organic solvent separately claim 1 , simultaneously or sequentially claim 1 , and is then subjected to microwave energy.5. A method according to which is carried out at an elevated temperature.69-. (canceled)10. A method according to wherein a solids-to-solvent ratio is from about no solvent to about 5:1 w/w.1112-. (canceled)13. A method according to which comprises the isolation of pectin claim 1 , from citrus material claim 1 , wherein said method comprises the microwave assisted hydrothermal low temperature treatment of citrus material.14. Pectin prepared by a method according to .15. Pectin according to which has a degree of esterification (DE) of ≧80%.16. Pectin according to which is substantially acid free.17. Pectin which has a polydispersity of from about 1 to about 2.5.18. Pectin which has a molecular weight of about ≧1×10g/mol. ...

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Номер записи: 69
05-03-2015 дата публикации

Composite material composed of a polymer containing fluorine, hydrophobic zeolite particles and a metal material

Номер: US20150065757A1
Автор: Achim Koch, Michael Zavrel
Принадлежит: Clariant Produkte Deutschland GmbH

The invention relates to a composite material comprising a) a porous matrix of a polymer containing fluorine and having a percentage of tetrafluoroethylene monomer units of at least 95 mol % based on the total of monomer units, b) hydrophobic zeolite particles which are embedded in the matrix and around which matrix filaments extend, and c) at least one metal material. The invention further relates to the use of the composite material for adsorbing organic molecules from a gaseous or liquid mixture of substances that contains at least one organic component, and to a method for removing organic molecules from a gaseous or liquid mixture of substances.

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Номер записи: 70
22-05-2014 дата публикации

METHODS AND SYSTEMS USEFUL FOR DRYING ETHANOL

Номер: US20140141480A1
Автор: Hendrickson Richard L., HILALY Ahmad K., Kim Youngmi, Ladisch Michael R., Mosier Nathan
Принадлежит:

Mixtures of ethanol and water are dehydrated using starch pearls to adsorb and remove water. Vapor-phase adsorption equilibrium capacities of cassava starch pellets (tapioca pearls) having different particle sizes are disclosed, and tapioca pearl particles are shown to be surprisingly more effective for dehydrating 88 to 97% w/w feed ethanol than corn grits. The adsorption equilibrium curve and BET surface area measurement show that the adsorption capacity of tapioca pearls is a function of surface area available to water molecules. SEM images demonstrate that the particle architecture required for the adsorption and dehydration properties is that of a core-shell configuration with pre-gel starch acting as a central scaffold holding together other particles to the outer layer of the particle. The outer surface area of the pearls, populated with dry starch granules, is the main factor determining the adsorption capacity of the pearls. Tapioca pearls are shown to possess a surprisingly higher adsorption capacity than corn grits of the same particle size. Pearls of 2 mm size in diameter gave 34% higher linear adsorption equilibrium constant (K) than grits of 1.7 mm. 1. A method of dehydrating an ethanol water mixture comprising ,a. contacting an ethanol:water mixture of at least 80% w/w ethanol with a first end of a column containing a bed of spherically shaped pearled starch particles; andb. removing a dehydrated ethanol product of at least 99% ethanol from a second end of the column.2. The method of further comprising regenerating the bed of pearled starch particles in the column by contacting the second end of the column with COheated to at least 105° C. and collecting water and residual ethanol from the first end of the column.3. The method of wherein the bed of spherically shaped pearled starch particles have a water content of 10% or less prior to being contacted by the ethanol:water mixture.4. The method of wherein the ethanol:water mixture is in a vapor phase ...

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Номер записи: 71
28-02-2019 дата публикации

PROCESS FOR MAKING SOLID PARTICLES

Номер: US20190062173A1
Автор: WISE GEOFFREY MARC
Принадлежит:

The invention relates to a process of creating particles of controlled size by creating them in the interstitial regions in a batch, semi-continuous, or continuous liquid phase. The method comprises making solid particles comprising: adding a precursor material to a liquid carrier to form a liquid continuous phase, wherein the concentration of the precursor material is from about 5% to about 99% by weight of the continuous liquid phase; adding an inert phase into the liquid continuous phase of step a, resulting in an inert phase and continuous liquid phase mixture having a volume fraction of the inert phase of from about 30% to about 98% and inert phase domain size of about 0.2 to about 200 μm; transforming the precursor material physically or chemically, resulting in the formation of solid particles. 1. A method of making solid particles comprising:a) adding a precursor material to a liquid carrier to form a continuous liquid phase, wherein the concentration of precursor material is from about 5% to about 99% by weight of the continuous liquid phase;b) adding an inert phase into the continuous liquid phase of step a, resulting in an inert phase and the continuous liquid phase mixture having a volume fraction of the inert phase of from about 30% to about 98% and an inert phase domain size of about 0.2 to about 200 μm;c) transforming the precursor material physically or chemically, resulting in the formation of solid particles.2. The method of claim 1 , wherein the inert phase comprises a liquid with a viscosity of from about 100 times to about 1 claim 1 ,000 claim 1 ,000 times the viscosity of liquid stream claim 1 , wherein the viscosity is measured at a shear stress of 10 Pa and at the temperature corresponding to the temperature at the initiation of the formation of solid particles.4. The method of claim 1 , wherein the density of the inert phase is from about 10 kg per cubic meter to about 3000 kg per cubic meter different than the density of the continuous ...

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Номер записи: 72
17-03-2022 дата публикации

Methanol production process from syngas produced by catalytic partial oxidation integrated with cracking

Номер: US20220081380A1
Автор: Atul Pant, Ravichander Narayanaswamy, Sivadinarayana Chinta
Принадлежит: Eni Spa

A process for producing syngas and olefins including the steps of feeding a catalytic partial oxidation (CPO) reactant mixture (oxygen, first hydrocarbons, steam) to a CPO reactor (CPO catalyst); wherein the CPO reactant mixture reacts, via CPO reaction, in CPO reactor to produce a CPO reactor effluent (H2, CO, CO2, water, unreacted first hydrocarbons). The process further includes feeding a cracking unit feed (second hydrocarbons) to a cracking unit to produce a cracking unit product (olefins), a hydrogen-rich stream (hydrogen, CH4), and a hydrocarbon recovery stream (C4+ hydrocarbons); wherein the first and the second hydrocarbons are the same or different; recovering a hydrogen-enriched stream (hydrogen) and a hydrocarbon-enriched stream (CH4) from the hydrogen-rich stream; and contacting the CPO reactor effluent with the hydrogen-enriched stream to yield hydrogen-enriched syngas, and wherein the M ratio ((H2—CO2)/(CO+CO2)) of the hydrogen-enriched syngas is greater than the M ratio of the CPO reactor effluent.

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Номер записи: 73
10-03-2016 дата публикации

ZEOLITE ADSORBENTS COMPRISING ZEOLITE EMT, PROCESS FOR PREPARING THE SAME AND USES THEREOF

Номер: US20160067673A1
Автор: Bats Nicolas, Bouvier Ludivine, LAROCHE Catherine, LEFLAIVE Philibert
Принадлежит:

The present invention relates to zeolite adsorbents based on agglomerated crystals of zeolite EMT comprising barium and/or potassium. These adsorbents find applications in the separation of aromatic C8 isomer fractions, especially of xylenes, in the separation of substituted toluene isomers, such as nitrotoluene, diethyltoluene and toluenediamine, and in the separation of cresols, and in the separation of polyhydric alcohols, such as sugars. 1. A zeolite adsorbent comprising zeolite EMT crystals and comprising barium and/or potassium , in which the total content of alkali metal or alkaline-earth metal ion oxides other than barium oxide BaO and potassium oxide KO is between 0 and 5% , limits included , relative to the total mass of the adsorbent.2. The zeolite adsorbent according to claim 1 , also comprising a non-zeolite phase.3. The zeolite adsorbent according to claim 1 , wherein the zeolite EMT crystals have an Si/Al atomic ratio of between 1.00 and 2.00 claim 1 , limits included.4. The zeolite adsorbent according to claim 1 , wherein the number-average diameter of the zeolite EMT crystals is between 5 nm and 1500 nm claim 1 , limits included.5. The zeolite adsorbent according to claim 1 , which also comprises crystals of at least one other zeolite claim 1 , selected from the group consisting of zeolites of FAU structure claim 1 , zeolites of LTA structure claim 1 , and zeolites of MFI structure.6. The zeolite adsorbent according to claim 5 , wherein the said at least one other zeolite is selected from the group consisting of zeolites of faujasite structure claim 5 , alone or as a mixture and wherein the mass fraction of zeolite EMT is between 1% and 50%.7. The zeolite adsorbent according to claim 1 , wherein the mass fraction of zeolite EMT is greater than 50% relative to the total weight of adsorbent.8. The zeolite adsorbent according to claim 1 , comprising zeolite phases of EMT-FAU intergrowth.9. The zeolite adsorbent according to claim 1 , wherein:the barium ...

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Номер записи: 74
09-03-2017 дата публикации

METAL ALKOXIDE AND A PROCESS FOR ITS PREPARATION

Номер: US20170066701A1
Автор: DESAI Bhavesh Kiritbhai, Gupta Virendrakumar, Thakare Yogeshwar Narayanrao, Vakil Suketu
Принадлежит: RELIANCE INDUSTRIES LIMITED

The present disclosure relates to microporous magnesium alkoxide and its preparation. The magnesium alkoxide of the present disclosure is characterized by mean particle size ranging from 20 to 70μ; surface area ranging from 1 to 30 m/g; circularity ranging from 0.5 to 0.9; macro pore size distribution ranging from 40 to 80%; meso pore size distribution ranging from 15 to 60%; and micro pore size distribution ranging from 2 to 10%. 1. Magnesium alkoxide comprising:a. mean particle size in the range of 20 to 70μ;{'sup': '2', 'b. surface area in the range of 1 to 30 m/g;'}c. circularity in the range of 0.5 to 0.9;d. macro pore size distribution in the range of 40 to 80%;e. meso pore size distribution in the range of 15 to 60%; andf. micro pore size distribution in the range of 2 to 10%.2. A process for preparing a morphologically modified magnesium alkoxide as claimed in claim 1 , said process comprising the following steps:a. contacting at a temperature in the range of 40 to 65° C. magnesium metal with at least one alcohol and at least one initiator for a time period of 30 min. to 3 hrs. to obtain a first mass;b. heating and maintaining the first mass at a temperature in the range of 65 to 80° C. for a period of 30 min. to 10 hrs to obtain a second mass; andc. drying the second mass under inert atmosphere at a temperature in the range of 60 to 120° C. to obtain a morphologically modified magnesium alkoxide.3. The process as claimed in claim 2 , wherein the alcohol is at least one selected from the group consisting of methanol claim 2 , ethanol claim 2 , propanol claim 2 , isopropanol claim 2 , butanol claim 2 , iso-butanol and a mixture of alcohols.4. The process as claimed in claim 2 , wherein the molar ratio of magnesium metal to alcohol ranges from 1:2 to 1:20.5. The process as claimed in claim 2 , wherein said initiator is at least one selected form the group consisting of titanium tetrachloride and magnesium dichloride.6. The process as claimed in claim 2 , ...

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Номер записи: 75
09-03-2017 дата публикации

PROCESS FOR THE ISOLATION OF 1,2,5,6-HEXANETETROL FROM SORBITOL HYDROGENOLYSIS REACTION MIXTURES USING SIMULATED MOVING BED CHROMATOGRAPHY

Номер: US20170066702A1
Автор: Ma Chicheng, Smith Brennan
Принадлежит:

A method of isolating and purifying 1,2,5,6 hexanetetrol (HTO) from a reaction mixture containing HTO and other byproducts of a hydrogenation reaction of a sugar alcohol and/or a mono- or di-dehydrative product of a sugar alcohol is described. The method involves contacting the mixture comprising HTO and other C1-C6 alcohols and polyols with a resin material adapted for chromatography under conditions where HTO preferentially associates with the resin relative to other components in the mixture, and eluting HTO from said resin with a solvent. 1. A method of purifying 1 ,2 ,5 ,6-hexanetetrol (HTO) comprising: contacting a mixture comprising HTO and other C-Calcohols and polyols with a resin material adapted for chromatography , under conditions where HTO preferentially associates with the resin relative to other components in the mixture; and eluting HTO from said resin with a solvent.2. The method according to claim 1 , wherein said mixture is a product of a sugar alcohol hydrogenation.3. The method according to claim 2 , wherein said sugar alcohol is selected from the group consisting of: sorbitol claim 2 , mannitol claim 2 , galactitol claim 2 , fucitol claim 2 , iditol claim 2 , inositol claim 2 , maltitol claim 2 , and mixtures thereof.4. The method according to claim 2 , wherein said sugar alcohol is sorbitol.5. The method according to claim 1 , wherein said mixture is a product of a hydrogenation of mono or di-dehydration products of Csugars claim 1 , selected from the group consisting of isosorbide claim 1 , isoidide claim 1 , isomannide claim 1 , 1 claim 1 ,4-sorbitan claim 1 , 3 claim 1 ,6-sorbitan claim 1 , 2 claim 1 ,5-sorbitan claim 1 , 1 claim 1 ,5-sorbitan claim 1 , 2 claim 1 ,6-sorbitan claim 1 , and mixtures thereof.6. The method according to claim 1 , wherein said mixture comprises HTO claim 1 , glycerol claim 1 , volatile alcohols claim 1 , sorbitol claim 1 , water claim 1 , and ionic species.7. The method according to claim 1 , wherein said resin ...

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Номер записи: 76
24-03-2022 дата публикации

CONTINUOUS PROCESSES FOR THE SELECTIVE CONVERSION OF ALDOHEXOSE-YIELDING CARBOHYDRATE TO ETHYLENE GLYCOL USING LOW CONCENTRATIONS OF RETRO-ALDOL CATALYST

Номер: US20220089514A1
Автор: Albin Brooke, Bradford Michael, Bunning Donald, Kapicak Louis A., Nunley Mark, Schreck David James
Принадлежит:

Retro-aldol processes are disclosed that use very low concentrations of retro-aldol catalyst in combination with hydrogenation catalyst of certain activities, sizes and spatial dispersions to obtain the high selectivities to ethylene glycol. 1. A continuous , catalytic process for producing ethylene glycol from an aldose-yielding carbohydrate-containing feed , comprising: (i) the heterogeneous hydrogenation catalyst has a maximum particle dimension of less than about 100 microns, and', '(ii) the hydrogenation catalyst is dispersed in the liquid medium in an amount of less than about 100 grams per liter thereby providing a spatial relationship among catalytically active hydrogenation sites in the liquid medium;, '(a) continuously or intermittently supplying the feed to a reaction zone containing a liquid medium having therein heterogeneous, nickel-containing hydrogenation catalyst, wherein the feed is supplied at a rate of at least about 50 grams per hour of carbohydrate per liter of liquid medium, and wherein said liquid medium is at catalytic conversion conditions including the presence of dissolved hydrogen, a temperature of at least about 235° C., a pH greater than 3 and a residence time sufficient to react at least 99 mass percent of the aldose-yielding carbohydrate, wherein(b) continuously or intermittently supplying to the reaction zone homogeneous, tungsten-containing retro-aldol catalyst the concentration of solubilized tungsten compounds, calculated as tungsten atoms, in the liquid medium in the reactor is from about 200 to 1500 milligrams per liter, wherein the relative amounts of hydrogenation catalyst and retro-aldol catalyst are sufficient to provide, under the catalytic conversion conditions, a cumulative conversion efficiency of the aldose-containing carbohydrate to ethylene glycol of at least 75 percent for a duration of 100 hours; and(c) continuously or intermittently withdrawing from the reaction zone a raw product stream containing ethylene glycol ...

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Номер записи: 77
24-03-2022 дата публикации

Continuous processes for the selective conversion of aldohexose-yielding carbohydrate to ethylene glycol using low concentrations of retro-aldol catalyst

Номер: US20220089515A1
Автор: Brooke ALBIN, David James Schreck, Donald Bunning, Louis A. Kapicak, Mark Nunley, Michael Bradford
Принадлежит: TEn Process Technology Inc, TEn Stone & Webster Process Technology Inc

Retro-aldol processes are disclosed that use very low concentrations of retro-aldol catalyst in combination with hydrogenation catalyst of certain activities, sizes and spatial dispersions to obtain the high selectivities to ethylene glycol.

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Номер записи: 78
19-03-2015 дата публикации

Applications of the rotating photobioreactor

Номер: US20150079651A1
Автор: Dennis A. Burke
Принадлежит: Individual

A method to recover and harvest nutrients and volatile gases such as alcohols from a liquid stream using a fixed film bioreactor. The method includes a means of concentrating product gas stripped from a bioreactor.

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Номер записи: 79
05-03-2020 дата публикации

PROCESS FOR PURIFYING A CRUDE COMPOSITION INCLUDING A MONOTERPENE COMPOUND, SUCH AS A MONOCYCLIC MONOTERPENE ALCOHOL, BY LAYER MELT CRYSTALLIZATION

Номер: US20200071249A1
Автор: Brack Hans-Peter, LIPPUNER Florian, Stepanski Manfred
Принадлежит:

A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aidehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.

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Номер записи: 80
05-03-2020 дата публикации

DIVALENT CATION REMOVAL FROM RICH MONOETHYLENE GLYCOL (MEG) FEED STREAMS BY ION EXCHANGE

Номер: US20200071250A1
Автор: FERNANDEZ Luis Eduardo Caires, PHELPS Daniel W.
Принадлежит: Cameron International Corporation

A system and process for removing divalent cations from a rich MEG feed stream is presented. An ion exchange bed containing a cation exchange resin adsorbs the divalent cations in the rich MEG feed stream as it flows through the ion exchange bed. After the divalent ions have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the feed stream flows through a distillation column to regenerate MEG. The spent cation exchange resin may be regenerated in place using a regeneration brine comprised of sodium chloride and water. After use, the regeneration brine may be disposed as waste or recycled to the brine storage tank and re-used to regenerate the cation exchange resin. 1. A process for removing divalent cations from a feed stream containing water and monoethylene glycol (MEG) , the process comprising:passing the feed stream through an ion exchange bed containing a cation exchange resin, wherein the divalent cations are adsorbed by the cation exchange resin to form an effluent stream; andpassing the effluent stream from the ion exchange bed through a distillation column to yield MEG and distilled water.2. The process of claim 1 , further comprising regenerating the cation exchange resin by passing a regeneration brine through the cation exchange resin.3. The process of claim 2 , wherein the regeneration brine comprises water from the distillation column.4. The process of claim 3 , wherein the regeneration brine is stored in a brine storage tank.5. The process of claim 4 , wherein the feed stream is passed through the ion exchange bed in a first direction claim 4 , and the regeneration brine is routed from the brine storage tank to the ion exchange bed in a second direction opposite from the first direction.6. The process of claim 5 , wherein the regeneration brine is formed by mixing sodium chloride from an external source with the water from the distillation column.7. The process of claim 6 , wherein ...

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Номер записи: 81
05-06-2014 дата публикации

METHOD FOR DESORBING AND REGENERATING BUTANOL-ADSORBING HYDROPHOBIC MACROPOROUS POLYMER ADSORBENT

Номер: US20140155658A1
Автор: Bai Jianxin, Chen Xiaochun, Chen Yong, Fan Jianshen, Lin Xiaoqing, Wu Jinglan, Xie Jinglin, Xiong Jian, Ying Hanjie
Принадлежит:

The present invention provides a method for desorbing and regenerating a butanol-adsorbing hydrophobic macroporous polymer adsorbent, comprising: successively eluting the hydrophobic macroporous polymer adsorbent with butanol adsorbed therein using a water soluble low-boiling-point polar solvent and water. After a butanol-containing solution, such as a butanol fermentation liquor, has been adsorbed by a hydrophobic macroporous polymer adsorbent, the butanol adsorbed in the adsorbent can be thoroughly dissolved and removed by the desorption and regeneration method of the present invention; furthermore, the adsorbent can be directly regenerated to recover its adsorption capability on a fixed bed adsorbing the butanol fermentation liquor, wherein the next stage of adsorption process can be directly entered without taking the adsorbent out from the fixed bed; therefore it saves a great deal of time and improves the regeneration efficiency. The method provided in the present invention has a simple process, a short separation time, easy, fast and complete desorption and regeneration, low equipment investmentand pollution, and reduced energy consumption, and therefore production is easy on a large scale. 1. A method for desorbing and regenerating a butanol-adsorbing hydrophobic macroporous polymer adsorbent comprising: successively eluting the hydrophobic macroporous polymer adsorbent with butanol adsorbed therein using a water soluble low-boiling-point polar solvent and water.2. The method for desorbing and regenerating according to claim 1 , wherein the hydrophobic macroporous polymer adsorbent with butanol adsorbed therein adsorbs butanol by adsorbing butanol fermentation broth.3. The method for desorbing and regenerating according to claim 1 , further comprising: eluting the hydrophobic macroporous polymer adsorbent with water before eluting it with the water soluble low-boiling-point polar solvent;preferably, eluting the hydrophobic macroporous polymer adsorbent with ...

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Номер записи: 82
18-03-2021 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Номер: US20210078927A1
Автор: Barr Jared L., Cruz Carlos A., ELLIS William C., MCDANIEL Max P., Monwar Masud M.
Принадлежит:

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst. 1. A process for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound , the process comprising:(i) irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst; and(ii) hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound.2. The process of claim 1 , wherein the hydrocarbon reactant comprises a Cto Clinear claim 1 , branched claim 1 , or cyclic alkane compound.3. The process of claim 1 , wherein the hydrocarbon reactant comprises methane claim 1 , ethane claim 1 , propane claim 1 , butane claim 1 , or a combination thereof.4. The process of claim 1 , wherein the supported chromium catalyst contains from about 0.01 to about 50 wt. % of chromium claim 1 , based on the weight of the supported chromium catalyst.5. The process of claim 1 , wherein the reduced chromium catalyst contains chromium having an average valence of less than or equal to about 5.25.6. The process of claim 1 , wherein the supported chromium ...

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Номер записи: 83
26-03-2015 дата публикации

METHOD AND APPARATUS FOR PREPARING ISOPROPYL ALCOHOL

Номер: US20150083578A1
Автор: Lee Jong Ku, Lee Sung Kyu, Shin Joon Ho
Принадлежит:

The present application relates to an apparatus for purifying isopropyl alcohol. The present application enables isopropyl alcohol to be obtained in a high purity from a feed comprising water and isopropyl alcohol with a minimum amount of energy consumption. 1. A method for preparing isopropyl alcohol , comprising:supplying a feed including isopropyl alcohol and water and having a water content of 1,000 ppm to 10,000 ppm to a dehydration means including molecular sieves;removing the water with the dehydration means to adjust the water content of the feed to 300 ppm or less; andsupplying the feed of which the water content is adjusted to 300 ppm or less to a divided wall column to carry out purification.2. The method of claim 1 , wherein an average pore size of the molecular sieves is 1.0 Å to 5.0 Å.3. The method of claim 1 , wherein the molecular sieves have a specific surface area of 10 m/g to 3 claim 1 ,000 m/g.4. The method of claim 1 , wherein the dehydration means includes a column in which the molecular sieves are filled.5. The method of claim 1 , further comprising:regenerating the molecular sieves subjected to the dehydration with nitrogen gas.6. The method of claim 5 , wherein the regeneration is carried out at 180° C. to 300° C.7. The method of claim 1 , wherein the purification includes supplying the feed of which the water content is adjusted to 300 ppm or less into an upper supply region of the divided wall column claim 1 , carrying out purification in the divided wall column claim 1 , and obtaining a discharge including the purified isopropyl alcohol from a lower discharge region of the divided wall column.8. The method of claim 7 , wherein upper and lower driving temperatures of the divided wall column are adjusted to 40° C. to 140° C. and 90° C. to 170° C. claim 7 , respectively.9. The method of claim 7 , wherein heat is exchanged between a flow of the discharge discharged from the lower discharge region and the feed supplied to the upper supply ...

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Номер записи: 84
12-03-2020 дата публикации

HEAT INTEGRATION IN A PROCESS FOR THE PREPARATION OF ETHYLENE CARBONATE AND ETHYLENE GLYCOL

Номер: US20200079712A1
Автор: BASTINGS Roel Guillaume Hubertus Leonardus, BOJOVIC Vesna, MOLINA Alexandre
Принадлежит:

Processes and associated reaction systems for the preparation of ethylene carbonate and ethylene glycol from ethylene oxide are provided, particularly processes and associated reaction systems directed to heat integration in the treatment of recycle gas streams. 1. A process comprising{'b': 14', '15', '20, 'supplying an ethylene oxide absorber overhead stream () to a condenser () to produce a cooled recycle gas stream () and one or more aqueous streams,'}{'b': 20', '30, 'heating at least a portion of said cooled recycle gas stream () to provide a heated recycle gas stream (),'}{'b': 30', '31', '2', '36, 'contacting said heated recycle gas stream () with one or more guard bed materials in one or more guard bed systems () positioned upstream of an ethylene oxide reactor () to provide a treated recycle gas stream (),'}{'b': 1', '36', '2', '4, 'contacting an epoxidation feed gas () comprising ethylene, oxygen and at least a portion of said treated recycle gas stream () with an epoxidation catalyst in ethylene oxide reactor () to yield an epoxidation reaction product stream (),'}{'b': 4', '9', '10', '13', '14, 'contacting the epoxidation reaction product stream () in an ethylene oxide absorber () with a lean absorbent stream () in the presence of a carboxylation and hydrolysis catalyst to yield a fat absorbent stream () comprising ethylene carbonate and/or ethylene glycol and an ethylene oxide absorber overhead stream (),'}{'b': '20', 'wherein cooled recycle gas stream () is heated by heat exchange with a hot process stream selected from'}{'b': 14', '15, '(i) the ethylene oxide absorber overhead stream (), in a condenser ();'}{'b': 24', '15, '(ii) steam () produced in an ethylene glycol purification column overhead condenser, in a first heat exchanger located downstream of condenser ();'}{'b': 25', '15, '(iii) steam () produced by flashing one or more condensate streams collected in the process, in a second heat exchanger located downstream of condenser (), or a ...

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Номер записи: 85
25-03-2021 дата публикации

1,2-ALKANEDIOLS AND A PROCESS FOR THEIR PRODUCTION

Номер: US20210085579A1
Автор: Lange Sabine, Schmaus Gerhard, SIEWERT Jürgen, STEPHAN Torsten, WINKLER Sven
Принадлежит:

Suggested are 1,2-alkanediols of formula (I) HOCH—CH(OH)—Rin which Rstands for an alkyl radical having 3 to 10 carbon atoms, said diols being substantially free of lactones and/or peroxides. 1. A 1 ,2-alkanediol of formula (I){'br': None, 'sub': '2', 'sup': '1', 'HOCH—CH(OH)—R'}{'sup': '1', 'in which Rstands for an alkyl radical having 3 to 10 carbon atoms, said diol being substantially free of lactones and/or peroxides.'}2. The diol of claim 1 , wherein said diol is substantially free of lactones selected from the group consisting of γ-pentalactone claim 1 , γ-hexalactone claim 1 , γ-heptalactone claim 1 , γ-octalactone claim 1 , γ-nonalactone claim 1 , γ-decalactone claim 1 , γ-undecalactone claim 1 , γ-dodecalactone claim 1 , γ-tetralactone claim 1 , and mixtures thereof.3. The diol of claim 1 , wherein the content of lactones and/or said peroxides in said diol is less than 1 GC area-% or 1% b.w. respectively.4. The diol of selected from the group consisting of 1 claim 1 ,2-pentanediol claim 1 , 1 claim 1 ,2-hexanediol claim 1 , 1 claim 1 ,2-octanediol claim 1 , 1 claim 1 ,2-decanediol claim 1 , 1 claim 1 ,2-dodecanediol claim 1 , and mixtures thereof.5. A 1 claim 1 ,2-alkanediol of formula (I){'br': None, 'sub': '2', 'sup': '1', 'HOCH—CH(OH)—R'}{'sup': '1', 'in which Rstands for an alkyl radical having 3 to 10 carbon atoms, said diol being substantially free of lactones, and obtained by the following steps(a) providing at least one 1,2-olefin having 5 to 12 carbon atoms;(b) adding formic acid and hydrogen peroxide to form a first mixture;(c) heating the first mixture of step (b) to produce a second mixture comprising the corresponding 1,2-alkanediol mono and diformates;(d) subjecting the second mixture of step (c) to a catalytic working amount of a decarbonylation catalyst to form a third mixture;(e) heating the third mixture of step (d) to a temperature of from about 150 to about 250° C. to decompose said formates and form the respective diols and carbon ...

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Номер записи: 86
12-03-2020 дата публикации

NUCLEATING AGENTS, METHODS FOR THEIR PRODUCTION, AND ASSOCIATED POLYMER COMPOSITIONS

Номер: US20200079929A1
Автор: Dabbous Raphaël, HORTON Murray, JAYARATNE Vidura Nalin, TURNEY Terence William
Принадлежит:

A method of manufacture of zinc monoglycerolate containing an incorporated modifier, and the product, the zinc monoglycerolate being in the form of agglomerates of crystallites, wherein the crystallite size based on the average coherence domain length is not more than 30 nm in the <100> direction, and not more than 60 nm in the <011> direction, as determined by the Scherrer equation via powder X-ray diffraction; and the aspect ratio computed by <100>/<011> coherent domain lengths is less than 0.65, preferably less than 0.56, in particular less than 0.44. Polymers containing this nucleating agent and methods for their production are also described. The zinc monoglycerolate is useful as a nucleating agent, and is very effective at low loading levels in polymers such as polypropylene. 1: A zinc monoglycerolate in the form of agglomerates of crystallites , wherein:a crystallite size of the zinc monoglycerolate, based on average coherence domain length, is less than 30 nm in the <100> direction (size along the <100> zone axis), and less than 60 nm in the <011> direction (size along the <100> zone axis), as determined by the Scherrer equation via powder X-ray diffraction; andan aspect ratio of the zinc monoglycerolate, computed by <100>/<011> coherent domain lengths, is less than 0.65.2: The zinc monoglycerolate according to claim 1 , comprising a modifier.3: The zinc monoglycerolate according to claim 2 , wherein the modifier is a glycerol carboxylate ester.4: The zinc monoglycerolate according to claim 3 , wherein the glycerol carboxylate ester is a saturated fatty acid ester of glycerol.5: The zinc monoglycerolate according to claim 4 , wherein the glycerol carboxylate ester is glycerol monostearate.6: The zinc monoglycerolate according to claim 2 , wherein an amount of modifier is between 1.0 and 5.0 mol % with respect to the zinc monoglycerolate.7: A zinc monoglycerolate in the form of agglomerates of crystallites claim 2 , comprising between 1.0 and 5.0 mol % of a ...

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Номер записи: 87
25-03-2021 дата публикации

A method and a system for obtaining methanol from foul condensate of a pulping process

Номер: US20210087745A1
Автор: David BLOMBERG SAITTON, Olle Wennberg, Thomas Nordlander
Принадлежит: VALMET AB

Embodiments herein relate to a system (200; 300; 400; 500) for obtaining methanol from foul condensate (101) of a pulping process. The system (200; 300; 400; 500) comprises a primary stripper (102) arranged to strip the foul condensate (101) from pollutants, whereby a first methanol-containing condensate is obtained from the polluted stripper off gases (SOGs). The system (200; 300; 400; 500) also comprises a first acidification unit (202) arranged to acidify the first methanol-containing condensate. Further, the system (200; 300; 400; 500) comprises a secondary stripper (204) arranged to strip the acidified first methanol-containing condensate from pollutants to obtain a second methanol-containing condensate, and a distillation column (107) arranged to distil the second methanol-containing condensate from the secondary stripper (204) so as to obtain methanol. Embodiments herein also relate to a method performed in a system (200; 300; 400; 500) for obtaining methanol from foul condensate (101) of a pulping process.

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Номер записи: 88
21-03-2019 дата публикации

PROCESS FOR RECOVERING A METALLIC COMPONENT

Номер: US20190084907A1
Автор: Haan Johannes Pieter, HUIZENGA Pieter, VAN DER HEIDE Evert, VLAANDEREN Michel
Принадлежит:

The invention provides a process for recovering a metallic component from a process stream, said process comprising passing said process stream over a ceramic membrane comprising a selective layer with a pore size in the range of from at least 0.5 nm to at most 10 nm; applying a pressure difference across said ceramic membrane such that the pressure outside the ceramic membrane is at least 50 kPa lower than the pressure inside the ceramic membrane; and, thus, providing a permeate stream which has passed through the ceramic membrane and which is depleted in the metallic component and a retentate stream enriched in the metallic component; wherein the process stream is derived from a process for the conversion of saccharide-containing feedstock into glycols. 1. A process for recovering a metallic component from a process stream , said process comprising passing said process stream over a ceramic membrane comprising a selective layer with a pore size in the range of from at least 0.5 nm to at most 10 nm;applying a pressure difference across said ceramic membrane such that the pressure outside the ceramic membrane is at least 50 kPa lower than the pressure inside the ceramic membrane; and, thus, providing a permeate stream which has passed through the ceramic membrane and which is depleted in the metallic component and a retentate stream enriched in the metallic component; wherein the process stream is derived from a process for the conversion of saccharide-containing feedstock into glycols.2. A process for preparing glycols from a saccharide-containing feedstock comprising steps of:i) providing a saccharide-containing feedstock in a solvent and hydrogen to a reactor system, wherein the reactor system contains at least two active catalytic compositions, said active catalyst compositions comprising, as a hydrogenation catalyst composition, one or more materials selected from transition metals from groups 8, 9 or 10 or compounds thereof, with catalytic hydrogenation ...

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Номер записи: 89
30-03-2017 дата публикации

Pharmaceutical compositions comprising monoterpenes

Номер: US20170088494A1
Автор: Thomas Chen
Принадлежит: Neonc Technologies Inc

The present invention provides a process for purifying a monoterpene or sesquiterpene having a purity greater than about 98.5% (w/w). The process comprises the steps of derivatizing the monoterpene (or sesquiterpene) to produce a monoterpene (or sesquiterpene) derivative, separating the monoterpene (or sesquiterpene) derivative, and releasing the monoterpene (or sesquiterpene) from the derivative. Also encompassed by the scope of the present invention is a pharmaceutical composition comprising a monoterpene (or sesquiterpene) having a purity greater than about 98.5% (w/w). The purified monoterpene can be used to treat a disease such as cancer. The present monoterpene (or sesquiterpene) may be administered alone, or may be co-administered with radiation or other therapeutic agents, such as chemotherapeutic agents.

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Номер записи: 90
05-05-2022 дата публикации

CONTINUOUS PROCESSES FOR THE SELECTIVE CONVERSION OF ALDOHEXOSE-YIELDING CARBOHYDRATE TO ETHYLENE GLYCOL USING LOW CONCENTRATIONS OF RETRO-ALDOL CATALYST

Номер: US20220135505A1
Автор: Albin Brooke, Bradford Michael, Bunning Donald, Kapicak Louis A., Nunley Mark, Schreck David James
Принадлежит:

Retro-aldol processes are disclosed that use very low concentrations of retro-aldol catalyst in combination with hydrogenation catalyst of certain activities, sizes and spatial dispersions to obtain the high selectivities to ethylene glycol.

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Номер записи: 91
09-04-2015 дата публикации

LENTINAN EXTRACTION PROCESS FROM MUSHROOMS USING IONIC LIQUID

Номер: US20150099871A1
Автор: Earle Martyn, Gilea Manuela
Принадлежит:

A method of extracting lentinan from lentinan containing mushrooms comprising the step of contacting the mushrooms with an ionic liquid so as to obtain a lentinan rich ionic liquid solution. 165-. (canceled)66. A method of extracting lentinan from lentinan containing mushrooms comprising a step of contacting the mushrooms with an ionic liquid in order to obtain a lentinan rich ionic liquid solution.67. The method of claim 66 , wherein the ionic liquid is hydrophilic.68. The method of claim 67 , wherein the ionic liquid has at least one member of a group consisting of: an hydrophilic cation and a hydrophilic anion.69. A method of claim 68 , wherein the cation is selected from ammonium claim 68 , azaannulenium claim 68 , azathiazolium claim 68 , benzofuranium claim 68 , borolium claim 68 , diazabicyclodecenium claim 68 , diazabicyclononenium claim 68 , diazabicycloundecenium claim 68 , dithiazolium claim 68 , furanium claim 68 , imidazolium claim 68 , indolinium claim 68 , indolium claim 68 , morpholinium claim 68 , oxaborolium claim 68 , oxaphospholium claim 68 , oxazinium claim 68 , oxazolium claim 68 , iso-oxazolium claim 68 , oxothiazolium claim 68 , pentazolium claim 68 , phospholium claim 68 , phosphonium phthalazinium claim 68 , piperazinium claim 68 , piperidinium claim 68 , pyranium claim 68 , pyrazinium claim 68 , pyrazolium claim 68 , pyridazinium claim 68 , pyridinium claim 68 , pyrimidinium claim 68 , pyrrolidinium claim 68 , pyrrolium claim 68 , quinazolinium claim 68 , quinolinium claim 68 , iso-quinolinium claim 68 , quinoxalinium claim 68 , selenozolium claim 68 , tetrazolium claim 68 , iso-thiadiazolium claim 68 , thiazinium claim 68 , thiazolium claim 68 , thiophenium claim 68 , triazadecenium claim 68 , triazolium and iso-triazolium.71. The method of claim 70 , wherein R claim 70 , R claim 70 , R claim 70 , R claim 70 , R claim 70 , Rand Rare each independently selected from hydrogen claim 70 , a Cto C claim 70 , straight chain or branched alkyl.72 ...

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Номер записи: 92
09-04-2015 дата публикации

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

Номер: US20150099905A1
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: 93
28-03-2019 дата публикации

METHOD AND DEVICE FOR FERMENTATION INTEGRATED WITH SEPARATION AND PURIFICATION OF BUTANOL

Номер: US20190093134A1
Автор: Chen Lijie, Xue Chuang, Zhu Chao
Принадлежит: Dalian University of Technology

The disclosure relates to a method for fermentation integrated with separation and purification of acetone, butanol, and ethanol (ABE) or butanol alone, comprising the following steps: 1) obtaining ABE by fermentation using an acetone-butanol-producing bacterium or obtaining butanol using a butanol-producing bacterium; 2) using a “vapor-stripping-vapor-permeation” method (briefly VSVP) for online separation and purification of ABE or purifying butanol from the fermentation broth; wherein the VSVP method comprises the following steps: introducing a gas bubble into the fermentation broth comprising active cells for fermentation to vaporize ABE or Butanol; subjecting the gas along with the vaporized ABE or Butanol to a membrane separation unit to pass through the membrane; recovering ABE or Butanol, or subjecting ABE or Butanol to a next separation device. By using the disclosed method, production, separation, and purification efficiency of ABE or butanol are improved with saved energy consumption and without increasing equipment investment. 1. A method for fermentation integrated with separation and purification of acetone , butanol , and ethanol (ABE) or butanol alone , comprising the following steps:1) obtaining ABE or Butanol by fermentation using an acetone-butanol-producing bacterium or a butanol-producing bacterium;2) using a “vapor-stripping-vapor-permeation” method (briefly named VSVP) for online separation and purification of butanol, acetone and ethanol from a broth of the fermentation;wherein the VSVP method comprises the following steps:a. introducing a gas bubble into the fermentation broth to vaporize ABE or Butanol;b. subjecting the gas along with the vaporized ABE or the vaporized Butanol into a membrane separation unit, and permeate through the membrane in a vapor form;c. recovering ABE or Butanol, or subjecting ABE or Butanol to a next separation device.2. The method according to claim 1 , wherein the gas bubble is derived from a self-produced gas of ...

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Номер записи: 94
26-06-2014 дата публикации

Ethanol Refining Process Using Intermediate Reboiler

Номер: US20140179957A1
Автор: Nathan Kirk Powell
Принадлежит: Celanese International Corp

The present invention relates to processes for producing and recovering ethanol using an intermediate reboiler. An intermediate stream may be withdrawn from a removal zone of a distillation column and recirculated through the intermediate reboiler to the distillation column. The distillation column may also comprise a bottoms reboiler.

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Номер записи: 95
16-04-2015 дата публикации

Process for producing volatile organic compounds from biomass material

Номер: US20150105593A1
Автор: Corey William RADTKE, Keith Michael Kreitman, Phillip Guy Hamilton
Принадлежит: Shell Oil Co

Embodiments of the present invention provide for production and recovery of ethanol or other volatile organic compounds, such as acetic acid, from solid biomass material. One embodiment comprises introducing a biomass material to a compartment of a solventless recovery system, wherein the biomass material contains one or more volatile organic compounds; contacting the biomass material with a superheated vapor stream in the compartment to vaporize at least a portion of an initial liquid content in the biomass material, said superheated vapor stream comprising at least one volatile organic compound; separating a vapor component and a solid component from the heated biomass material, said vapor component comprising at least one volatile organic compound; and retaining at least a portion of the vapor component for use as part of the superheated vapor stream.

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Номер записи: 96
02-06-2022 дата публикации

Process to recover 3-methyl-but-3-en-1-ol

Номер: US20220169586A1
Автор: Andreas Keller, Bernhard Brunner, Gabriele Gralla, Martin Kamasz, Roland Minges
Принадлежит: BASF SE

The presently claimed invention relates to a process for the recovery of 3-methyl-3-buten- -ol from a stream comprising (Z)-3-methylpent-2-ene-1,5-diol, (E)-3-methylpent-2-ene-,5-diol and 3-methylenepentane-1,5-diol by treating the stream with isobutene and water.

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Номер записи: 97
02-04-2020 дата публикации

Method for processing raw sugarcane maximizing the preservation of policosanols during production of a natural sugarcane juice-based product

Номер: US20200101129A1
Автор: Jorge Enrique GONZALEZ ULLOA
Принадлежит: Cane Juice Company LLC

A method for processing sugarcane juice from raw sugarcane stalks to produce various forms of a natural sugarcane juice product preserves policosanols naturally occurring in the raw sugarcane stalks, resulting in policosanol-rich natural sugarcane juice-based products such as a drinking beverage, a concentrated sweetening agent, and a nutraceutical product. The method may include steps of providing sugarcane stalks having high policosanol concentrations; extracting sugarcane juice from the sugarcane stalks via a series of roller mills; filtering the extracted sugarcane juice; stabilizing the pH of the juice in a non-acidic solution of calcium hydroxide; flocculating the sugarcane juice to remove undesirable impurities; optionally, evaporating the sugarcane juice to form a policosanol-rich sugarcane juice concentrate and extracting the sugarcane juice concentrate from the evaporator.

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Номер записи: 98
18-04-2019 дата публикации

PROCESS OF SEPARATING COMPONENTS OF A FERMENTATION BROTH

Номер: US20190112247A1
Автор: Burk Mark J., CLARK Warren, Japs Michael
Принадлежит:

A process of isolating 1,4-butanediol (1,4-BDO) from a fermentation broth includes separating a liquid fraction enriched in 1,4-BDO from a solid fraction comprising cells, removing water from said liquid fraction, removing salts from said liquid fraction, and purifying 1,4-BDO. A process for producing 1,4-BDO includes culturing a 1,4-BDO-producing microorganism in a fermentor for a sufficient period of time to produce 1,4-BDO. The 1,4-BDO-producing microorganism includes a microorganism having a 1,4-BDO pathway having one or more exogenous genes encoding a 1,4-BDO pathway enzyme and/or one or more gene disruptions. The process for producing 1,4-BDO further includes isolating 1,4-BDO. 1. A process of isolating 1 ,4-butanediol (1 ,4-BDO) from a fermentation broth , the process consisting of:separating a liquid fraction enriched in 1,4-BDO from a solid fraction of the fermentation broth comprising cells in a separation step consisting of filtration, wherein the filtration consists of ultrafiltration, and wherein the fermentation broth comprises 1,4-BDO at a concentration of about 5%-15% by weight of 1,4-BDO;removing salts from the liquid fraction, wherein removing the salts comprises nanofiltration and ion exchange;removing water from said liquid fraction, andpurifying 1,4-BDO from the liquid fraction by distillation after removing salts and water; to produce a 1,4-BDO product at least 98% pure.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. The process of claim 1 , wherein ultrafiltration comprises filtering through a membrane having a pore size from about 0.005 to about 0.1 microns.9. The process of claim 1 , wherein removing water is accomplished by evaporation with an evaporator system comprising one or more effects.10. The process of claim 9 , wherein said evaporator system comprises a double- or triple-effect evaporator.11. The process of claim 9 , wherein said evaporator system further comprises a thermal recompressor.12. The ...

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Номер записи: 99
05-05-2016 дата публикации

METHOD FOR PRODUCING BIO-METHANOL AT PULP MILLS

Номер: US20160122267A1
Автор: JEMAA Naceur, PALEOLOGOU Michael
Принадлежит:

The present invention describes a process and system of producing methanol from methanol condensates. In a preferred embodiment the condensates are biomethanol condensates from chemical pulp mills and various waste sources used to produce a purified biomethanol. Pulp condensates are rich in methanol and contain many other contaminants. Presently, most chemical pulp mills, such as Kraft pulp mills use steam stripping to remove and concentrate the methanol and burn the methanol onsite along with the contaminants. A combination of treatments that include air stripping, steam stripping, distillation and reverse osmosis is described to obtain purified biomethanol suitable for sale or use on site. 1. A process for producing a purified methanol comprising:pretreating a methanol-containing condensate to produce a pretreated condensate;polishing the pretreated condensate by reverse osmosis to produce the purified methanol, andfurther polishing the polished methanol in a second polishing step to produce the purified methanol with activated carbon.2. The process of claim 1 , wherein the pretreating comprises removal of impurities from the methanol-containing condensate tofrom 1 to 300 mg/L of total reduced sulphur (TRS);from 0 to 1000 mg/L total sulfur;from 0 to 100 mg/L terpenes; andfrom 0 to 500 mg/L acetone.3. The process of claim 1 , wherein the polishing by reverse osmosis has an impurity removal efficiency of greater than 95% by weight.4. The process of claim 1 , wherein the polishing by reverse osmosis has an impurity removal efficiency of greater than 97% by weight.5. The process of claim 1 , wherein the methanol-containing condensate is a biomethanol-containing condensate that derives from a biological source.6. The process of claim 5 , wherein the pretreating the biomethanol-containing comprisesacidifying the biomethanol condensate;steam stripping VOCs from the acidified condensate to produce a SOG condensate;decanting the SOG condensate into a methanol rich stream; ...

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Номер записи: 100