Purification Or Recovery Patents (Class 568/868)
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Patent number: 8367877Abstract: Methods of purifying BT are disclosed. The method comprises adding at least one polyhydroxyl compound to a crude BT mixture comprising BT and at least one boron-containing compound to form a polyhydroxyl compound/BT mixture. In one embodiment, the polyhydroxyl compound/BT mixture is then heated to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. In another embodiment, the polyhydroxyl compound/BT mixture is heated to a temperature greater than the melting point of the at least one polyhydroxyl compound, and then to a temperature greater than the boiling point of BT but less than the boiling point of the at least one polyhydroxyl compound. A composition comprising BT is also disclosed.Type: GrantFiled: November 17, 2009Date of Patent: February 5, 2013Assignee: Alliant Techsystems Inc.Inventors: Stephen P. Velarde, Andrew J. Sanderson
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Patent number: 8334416Abstract: A process for the removal of hydroxypropane from a crude product stream from the hydrogenation of glycerol, the crude product stream comprising 1,2-propanediol and hydroxypropanone as impurity, the process comprising: (a) where required condensing the crude product stream; and (b) contacting the crude product phase in the liquid phase with a stream of a hydrogen-containing gas in the presence of a heterogeneous catalyst at suitable temperatures and pressures such that hydroxypropanone present in the crude product stream is converted to the desired propanediol.Type: GrantFiled: December 2, 2008Date of Patent: December 18, 2012Assignee: Davy Process Technology LimitedInventors: Michael William Marshall Tuck, Robert Wild, Simon Nicholas Tilley
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Patent number: 8329959Abstract: The invention provides a process and a reactor for the preparation of an alkylene glycol from an alkylene oxide. Alkylene oxide, water, a homogeneous carboxylation catalyst and a homogenous hydrolysis catalyst are supplied to a reactor comprising a carboxylation zone and a hydrolysis zone. One or more ejectors are used to mix carbon dioxide and the liquid reagents in the carboxylation zone so that alkylene oxide reacts with carbon dioxide in the presence of water in the carboxylation zone to form a reaction solution comprising alkylene carbonate, water, the homogeneous carboxylation catalyst and the homogeneous hydrolysis catalyst. The reaction solution is supplied from the carboxylation zone to a hydrolysis zone, wherein alkylene carbonate and water react to form a product solution comprising alkylene glycol, the homogeneous carboxylation catalyst and the homogeneous hydrolysis catalyst.Type: GrantFiled: December 5, 2008Date of Patent: December 11, 2012Assignee: Shell Oil CompanyInventors: Hendrik Johannes Van Milligen, Peter Veenstra
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Patent number: 8293075Abstract: Processes for the continuous fractional distillation of a mixture containing morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process including: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20, in which water and an organic product are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.Type: GrantFiled: September 12, 2007Date of Patent: October 23, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Publication number: 20120253082Abstract: A method for producing a diol or triol, which has a step of removing impurities contained in a diol- or triol-containing solution, is provided. In the method, a diol- or triol-containing solution is filtered through a nanofiltration membrane having a polyamide-containing functional layer. The diol- or triol-containing solution is then collected from the permeate flow of the nanofiltration membrane.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Applicant: TORAY INDUSTRIES, INC.Inventors: Izumi MORITA, Masateru Ito, Hideki Sawai, Shinichi Minegishi, Katsushige Yamada, Kenji Kawamura, Shinichi Yamane
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Publication number: 20120232312Abstract: A process to convert glycerin into propylene glycol and purifying the produced propylene glycol is described. The glycerin-based propylene glycol production requires only one process step compared to petroleum/natural gas-based propylene glycol production requires multiple process steps, and thus represents a cost savings.Type: ApplicationFiled: March 12, 2012Publication date: September 13, 2012Applicant: GTC Technology US LLCInventors: Zhongyi Ding, Joseph Chiu, Weihua Jin
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Patent number: 8246793Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from the first distillation column to a second distillation column K20, wherein water and an organic product are separated off at a top of the second distillation column at a top temperature of 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from the second distillation column to a third distillation column K30, wherein morpholine and an organic product having a boiling point of <140° C. (1.013 bar) are separated off at a point selected from a top and a side offtake of the third distillation column, and monoaminodiglycol and an organic product having a boiling point of >190° C. (1.Type: GrantFiled: September 12, 2007Date of Patent: August 21, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Patent number: 8247623Abstract: The present invention relates to an apparatus for the catalytic production of alkylene glycol from alkylene oxide, comprising: a reactor having at least one heat exchange element incorporated therein, wherein a catalyst for the hydration of alkylene oxide to alkylene glycol is coated on the outer surface of the heat exchange element. The present invention also relates to a process utilizing such an apparatus.Type: GrantFiled: June 15, 2005Date of Patent: August 21, 2012Assignee: Saudi Basic Industries CorporationInventor: Radu Valentin Vladea
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Patent number: 8236996Abstract: The invention provides 1,6-hexanediol having a proportion by weight of nitrogen of less than 5 ppm, and polymers obtained by reacting the 1,6-hexanediol with at least one reactive compound. The 1,6-hexanediol is obtained by distilling a mixture including 1,6-hexanediol and more than 500 ppm of at least one carboxylic acid, ester, or both, having a boiling point higher than that of the 1,6-hexanediol and being in contact with the 1,6-hexanediol at a temperature range greater than or equal to 100° C. for at least 5 minutes before, during, or before and during, the distillation, followed by collection of the 1,6-hexanediol. In certain embodiments of this invention, the 1,6-hexanediol has a proportion by weight of nitrogen of less than 3 ppm and less than 2 ppm.Type: GrantFiled: November 23, 2011Date of Patent: August 7, 2012Assignee: BASF SEInventor: Rolf Pinkos
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Publication number: 20120184783Abstract: Disclosed is a process for the purification of a mixed diol stream. The mixed diol stream comprising two-, three-, and four-carbon diols is separated into component diols by extraction with a hydrophobic solvent mixture. The diols recovered in the extractant may be removed from the extractant stream by back extraction with water or by distillation with an azeotrope-forming agent present, preferably an azeotroping agent already present in the extractant mixture.Type: ApplicationFiled: March 27, 2012Publication date: July 19, 2012Applicant: EASTMAN CHEMICAL COMPANYInventor: Scott Donald Barnicki
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Publication number: 20120156496Abstract: Disclosed is a powder composition of mannitol crystals, produced by: (i) the crystallization of mannitol in a solvent; followed by (ii) a step of separating the crystals from the resulting crystal suspension; (iii) a step of drying the crystals; and (iv) a selection step, the composition having a particle size distribution, as determined by laser particle sizing, of 72 to 99.9 vol % of particles having a particle size greater than 75 ?m, of 0.1 to 60 vol % of particles larger than 250 ?m, and a mean diameter of between 100 and 300 ?m. Also described is a method for producing such a composition by a step of crystallizing a mannitol syrup followed by drying the mannitol crystals, a step of selecting particles, and a step of collecting a fraction of the powder composition including 72 to 99.9% of particles having a particle size greater than 75 ?m.Type: ApplicationFiled: September 1, 2010Publication date: June 21, 2012Applicant: ROQUETTE FRERESInventors: Baptiste Boit, Philippe Lefevre, Jose Lis
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Patent number: 8197646Abstract: Process for the continuous fractional distillation of mixtures including morpholine (MO), monoaminodiglycol (ADG), ammonia and water obtained by reaction of diethylene glycol (DEG) with ammonia, which includes separating off ammonia at the top of a first distillation column K10, feeding the bottoms from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.1 to 15 bar, feeding the bottoms from K20 to a third distillation column K30 in which MO and organic products having a boiling point of <140° C. (1.013 bar) are separated off at the top or at a side offtake and ADG and organic products having a boiling point of >190° C. (1.013 bar) are separated off at the bottom, feeding the MO including stream which is separated off at the top or at a side offtake of the column K30 to a fourth column K40 in which organic products having a boiling point of ?128° C. (1.Type: GrantFiled: September 12, 2007Date of Patent: June 12, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Patent number: 8197645Abstract: The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M?) and mixture (M?); (II) separating the mixture (M?) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water.Type: GrantFiled: December 13, 2006Date of Patent: June 12, 2012Assignees: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Armin Diefenbacher, Hans-Georg Goebbel, Stefan Bitterlich, Hartwig Voss, Henning Schultz, Anna Forlin, Renate Patrascu
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Patent number: 8183417Abstract: A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.Type: GrantFiled: February 25, 2011Date of Patent: May 22, 2012Assignees: E. I. du Pont de Nemours and Company, Tate & Lyle Ingredients Americas LLCInventors: Dennis N. Adkesson, Albert W. Alsop, Tyler T. Ames, Luis A. Chu, James M. Disney, Bryan C. Dravis, Patrick Fitzgibbon, James M. Gaddy, F. Glenn Gallagher, William F. Lehnhardt, Jefferson C. Lievense, Michael L. Luyben, Mayis Seapan, Robert E. Trotter, Gregory M. Wenndt, Eugene K. Yu
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Publication number: 20120088941Abstract: The subject of the present invention is a method for refining of polyols, preferably glycerol, by means of monodispersed ion exchangers in a purification unit of ion exclusion process and a mixed bed.Type: ApplicationFiled: December 19, 2011Publication date: April 12, 2012Applicant: LANXESS DEUTSCHLAND GMBHInventors: Hans-Karl Soest, Ulrich Litzinger, Reinhold Klipper, Rudolf Wagner
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Patent number: 8148581Abstract: The present invention relates to a process for preparing plastics using 1,6-hexanediol having an aldehyde content of less than 500 ppm, a process for preparing 1,6-hexanediol having an aldehyde content of less than 500 ppm and also 1,6-hexanediol having an aldehyde content of less than 500 ppm.Type: GrantFiled: November 23, 2010Date of Patent: April 3, 2012Assignee: BASF SEInventors: Rolf Pinkos, Eva Kretzschmar, Olivier Abillard, Lionel Gehringer
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Patent number: 8143458Abstract: Processes for separating butanediols from glycols are disclosed, as well as products and compositions resulting therefrom.Type: GrantFiled: October 29, 2007Date of Patent: March 27, 2012Assignee: Archer Daniels Midland CompanyInventor: Peter Kalagias
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Patent number: 8129155Abstract: A non-naturally occurring microbial organism having an isopropanol, 4-hydroxybutryate, or 1,4-butanediol pathway includes at least one exogenous nucleic acid encoding an isopropanol, 4-hydroxybutryate, or 1,4-butanediol pathway enzyme expressed in a sufficient amount to produce isopropanol, 4-hydroxybutryate, or 1,4-butanediol. The aforementioned organisms are cultured to produce isopropanol, 4-hydroxybutryate, or 1,4-butanediol.Type: GrantFiled: December 16, 2009Date of Patent: March 6, 2012Assignee: Genomatica, Inc.Inventors: John D. Trawick, Mark J. Burk, Anthony P. Burgard
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Patent number: 8124815Abstract: The invention relates to a process for preparing 1,6-hexanediol, in which a hexanediol having a proportion by weight of nitrogen of less than 5 ppm is obtained, 1,6-hexanediol having a proportion by weight of nitrogen of less than 5 ppm and also the use of this 1,6-hexanediol for preparing polymers.Type: GrantFiled: November 23, 2010Date of Patent: February 28, 2012Assignee: BASF SEInventor: Rolf Pinkos
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Patent number: 8114957Abstract: Processes for preparing relatively high molecular weight poly(trimethylene ether)glycol employing a cocatalyst system are provided.Type: GrantFiled: February 9, 2009Date of Patent: February 14, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Yanhui Niu, Zuohong Yin
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Patent number: 8101807Abstract: A hydrogenolysis method for converting glycerol into propylene glycol by directing a glycerol containing feed having a pH of about 10 or more to a reaction section including at least one glycerol conversion catalyst and operating at glycerol conversions conditions to form a reaction product including propylene glycol.Type: GrantFiled: December 23, 2008Date of Patent: January 24, 2012Assignee: UOP LLCInventors: Maureen L. Bricker, Laura E. Leonard, Todd M. Kruse, James G. Vassilakis, Simon R. Bare
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Publication number: 20110312051Abstract: A process for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner. The process involves, contacting hydrogen, water, and a feedstock comprising saccharide, with a catalyst system to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream. The catalyst system comprises at least one metal component with an oxidation state greater than or equal to 2+.Type: ApplicationFiled: July 28, 2011Publication date: December 22, 2011Applicant: UOP LLCInventors: Tom A. Kalnes, Joseph A. Kocal, John Q. Chen
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Patent number: 8080222Abstract: In an apparatus for the recovery of ethylene glycol in a polyethylene terephthalate(PET) production process water accumulating in the esterification reaction is mixed with a process fluid containing 2-methyl-1,3-dioxolane (MDO). The mixing is carried out in a tank upstream of a rectification column. Through the increase in the water content in the fluid, a shift in the reaction equilibrium takes place and consequently a cleavage of the 2-methyl-1,3-dioxolane present into ethylene glycol and acetaldehyde takes place. Following the cleavage reaction, the mixture is fed from the tank into a rectification column, whereby the ethylene glycol produced from the cleavage reaction is returned to the PET production process.Type: GrantFiled: January 6, 2011Date of Patent: December 20, 2011Inventors: Randolf Reimann, Rolf Ambrassat
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Patent number: 8071820Abstract: A method and apparatus for converting glycerol into propylene glycol by directing a basic glycerol containing feed and a hydrogen containing gas into a reaction zone including a fixed bed of catalyst that is operating at glycerol conversion conditions where the reactor includes and at least one quench zone and directing a quench material into the quench zone.Type: GrantFiled: December 23, 2008Date of Patent: December 6, 2011Assignee: UOP LLCInventors: Maureen L. Bricker, Laura E. Leonard
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Patent number: 8063255Abstract: A process for recovering monoethylene glycol from a catalyst bleed stream is disclosed. The process comprises combining the catalyst bleed stream with a heavies stream comprising at least 40 wt % diethylene glycol, to provide a combined stream and distilling the combined stream to provide a first stream comprising monoethylene glycol and a second stream comprising diethylene glycol.Type: GrantFiled: October 9, 2009Date of Patent: November 22, 2011Assignee: Shell Oil CompanyInventor: Mathias Jozef Paul Slapak
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Publication number: 20110282107Abstract: The present invention relates to a process for preparing deodorized 1,2-propanediol, to the use of the purified propanediol and to an apparatus for performing the process.Type: ApplicationFiled: January 19, 2010Publication date: November 17, 2011Applicant: BASF SEInventors: Stephan Maurer, Roman Prochazka, Oliver Bey, Jochen Steiner, Jochem Henkelmann, Gerhard Theis, Petere Wahl, Frank Heimann
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Publication number: 20110263909Abstract: The invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, wherein (1) the used aircraft de-icing agents are collected in a suitable device, (2) the used aircraft de-icing agent is subsequently brought to a propylene glycol content of between 55 and 75% by weight without prior separating of solid or suspended impurities by expelling water at increased temperature, (3) the concentrated used aircraft de-icing agent thus obtained is transported to a central reprocessing system, where the same is subjected to a fine distillation, and wherein (4) propylene glycol is produced as a distillate of the fine distillation.Type: ApplicationFiled: December 2, 2009Publication date: October 27, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Achim Stankowiak, Ingo Jeschke, Thomas Bergstroem
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Publication number: 20110257441Abstract: Method for purifying an alcohol from a fermentation broth comprising adding a heavy solvent, evaporating the alcohol to be purified, and mechanically drawing out of the crystallized salts by heavy solvent flow and scrapping on a falling film evaporator, a wiped film evaporator, a thin film evaporator or a short path evaporator.Type: ApplicationFiled: October 2, 2009Publication date: October 20, 2011Applicant: METABOLIC EXPLORERInventors: Pascal Rousseaux, Clement Cellier, Frederic Ollivier
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Patent number: 8029650Abstract: A method for purifying used antifreeze is disclosed. An antifreeze recycling systems uses a simple-distillation apparatus adapted to distill clean antifreeze from used antifreeze. A novel scraper blade is used in the simple-distillation apparatus. Also, antifreeze recycling methods that minimize waste and generate nontoxic, landfillable waste are provided. An antifreeze product produced by the present method, and a nontoxic, landfillable sludge product produced by the present method, are disclosed.Type: GrantFiled: September 26, 2007Date of Patent: October 4, 2011Inventor: Dale L. Letcher
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Patent number: 8022257Abstract: Methods for producing a polyols and polyurethanes are described. The polyols described herein can be produced directly from crude glycerin or through liquefaction of lignocellulosic biomass using a solvent comprising crude glycerin. The polyols produced in accordance with certain aspects may be derived from a significant proportion of renewable resources.Type: GrantFiled: December 7, 2009Date of Patent: September 20, 2011Assignee: The Ohio State University Research FoundationInventors: Yebo Li, Yuguang Zhou
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Publication number: 20110137085Abstract: Methods of converting cellulose or related biorenewable carbohydrate materials into high-value chemical compounds. The methods provide a means of converting low-cost materials such as cellulose and biomass into high yields of compounds such as ethylene glycol, propylene glycol, glycerin, methanol, hydroxyacetone, glycolaldehyde and dihydroxyacetone.Type: ApplicationFiled: December 8, 2010Publication date: June 9, 2011Applicant: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.Inventors: WALTER S. TRAHANOVSKY, RONALD C. HOLTAN, KYLE W. QUASDORF, NORMAN K. OLSON, ALYSE A. HURD, JOSEPH A. MARSHALL
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Patent number: 7951980Abstract: A method and apparatus are disclosed for the recovery of ethylene glycol in a polyethylene terephthalate (PET) production process, in which water accumulating in the esterification reaction is mixed with a process fluid containing 2-methyl-1,3-dioxolane (MDO). The mixing is carried out in a tank arranged upstream of a rectification column. Through the increase in the water content in the fluid, a shift in the reaction equilibrium takes place and consequently a cleavage of the 2-methyl-1,3-dioxolane present into ethylene glycol and acetaldehyde takes place. Following the cleavage reaction, the mixture is fed from the tank into a rectification column, whereby the ethylene glycol produced from the cleavage reaction is returned to the PET production process.Type: GrantFiled: August 5, 2009Date of Patent: May 31, 2011Assignee: Lurgi Zimmer GmbHInventors: Randolf Reimann, Rolf Ambrassat
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Publication number: 20110124905Abstract: The present invention relates to a process for preparing plastics using 1,6-hexanediol having an aldehyde content of less than 500 ppm, a process for preparing 1,6-hexanediol having an aldehyde content of less than 500 ppm and also 1,6-hexanediol having an aldehyde content of less than 500 ppm.Type: ApplicationFiled: November 23, 2010Publication date: May 26, 2011Applicant: BASF SEInventors: Rolf PINKOS, Eva Kretzschmar, Olivier Abillard, Lionel Gehringer
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Patent number: 7947855Abstract: A process for the purification of 1,4-butanediol mononitrate from 1,4-butanediol dinitrate and 1,4-butanediol, by selective extraction with solvents is herein disclosed.Type: GrantFiled: July 2, 2008Date of Patent: May 24, 2011Assignee: Dipharma S.p.A.Inventors: Tiziano Scubla, Nevio Francescutti, Fausto Gorassini, Graziano Castaldi
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Patent number: 7928269Abstract: A process for separating at least one tertiary alcohol from at least one secondary alcohol from pine oil, the process comprising: reacting the pine oil comprising the at least one secondary alcohol and the at least one tertiary alcohol with at least one C3-C30 carboxylic acid ester, and at least one base, wherein the secondary alcohol is esterified to produce at least one secondary ester, with the proviso that the base is not a hydroxide; and separating the tertiary alcohol from the secondary ester.Type: GrantFiled: December 30, 2008Date of Patent: April 19, 2011Assignee: LyondellBasell Flavors and Fragrances, LLCInventor: Mikhail Y. Lebedev
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Patent number: 7919658Abstract: A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.Type: GrantFiled: May 5, 2004Date of Patent: April 5, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Dennis M. Adkesson, James S. Disney, Bryan C. Dravis, James M. Gaddy, William F. Lehnhardt, Jefferson C. Lievense, Gregory M. Wenndt, Tyler T. Ames, Patrick Fitzgibbon, F. Glenn Gallagher, Michael L. Luyben, Mayis Seapan, Robert E. Trotter, Albert W. Alsop, Eugene K. Yu, Luis Alberto Chu
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Publication number: 20110065967Abstract: Methods for preparing mannitol modification III are described herein. The methods relate to preparing solutions of mannitol in a suitable solvent and an auxiliary agent and solidifying from the solutions mannitol of modification III.Type: ApplicationFiled: May 21, 2008Publication date: March 17, 2011Applicant: SSCI, INC.Inventors: Jan-Olav Henck, Mark C. Andres, Linda J. Mccausland
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Patent number: 7893305Abstract: The present invention relates to a process for separation of diols from a mixture comprising diols and polyols, for example, from a reaction mixture obtained from hydrogenolysis of sorbitol. In particular, the present invention relates to separation of diols from the mixture using a combination of a wiped-film evaporator and a molecular evaporator to obtain diols in a high yield.Type: GrantFiled: June 10, 2009Date of Patent: February 22, 2011Assignee: Global Bio-Chem Technology Group Company LimitedInventors: Jing Liu, Hongbin Qi, Zhouwen Xu
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Publication number: 20110003355Abstract: 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.Type: ApplicationFiled: June 3, 2010Publication date: January 6, 2011Applicant: Genomatica, IncInventors: Warren Clark, Michael Japs, Mark J. Burk
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Publication number: 20100317902Abstract: The present invention relates to a process for separation of diols from a mixture comprising diols and polyols, for example, from a reaction mixture obtained from hydrogenolysis of sorbitol. In particular, the present invention relates to separation of diols from the mixture using a combination of a wiped-film evaporator and a molecular evaporator to obtain diols in a high yield.Type: ApplicationFiled: June 10, 2009Publication date: December 16, 2010Inventors: Jing Liu, Hongbin Qi, Zhouwen Xu
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Publication number: 20100267004Abstract: A method for labeling biological molecules and synthetic molecules that contain a geminal diol, such as RNA, carbohydrates or glycoproteins, using a periodate sequestering agent is provided. Compositions and kits for use in the labeling method are also provided.Type: ApplicationFiled: October 31, 2008Publication date: October 21, 2010Applicant: BIOVENTURES, INC.Inventors: Elliott P. Dawson, Kristie E. Womble
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Publication number: 20100160691Abstract: A hydrogenolysis method for converting glycerol into propylene glycol by directing a glycerol containing feed having a pH of about 10 or more to a reaction section including at least one glycerol conversion catalyst and operating at glycerol conversions conditions to form a reaction product including propylene glycol.Type: ApplicationFiled: December 23, 2008Publication date: June 24, 2010Inventors: Maureen Bricker, Laura E. Leonard, Todd M. Kruse, James G. Vassilakis, Simon Bare
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Publication number: 20100145108Abstract: The invention relates to an industrial process for purifying the product mixture of a transesterification reaction with a polar, electrolyte-containing organic phase, in which the electrolytes are removed from the permeating polar organic phase by means of a nanofiltration step.Type: ApplicationFiled: April 10, 2008Publication date: June 10, 2010Applicant: BAYER TECHNOLOGY SERVICES GMBHInventors: Michael Traving, Johannes-Peter Schaefer, Rafael Warsitz, Waldemar Widuch, Werner Bäcker, Uwe Spörer
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Publication number: 20100094065Abstract: A process for recovering monoethylene glycol from a catalyst bleed stream is disclosed. The process comprises combining the catalyst bleed stream with a heavies stream comprising at least 40 wt % diethylene glycol, to provide a combined stream and distilling the combined stream to provide a first stream comprising monoethylene glycol and a second stream comprising diethylene glycol.Type: ApplicationFiled: October 9, 2009Publication date: April 15, 2010Inventor: Mathias Jozef Paul SLAPAK
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Patent number: 7695594Abstract: A distillation process for separating a target component from a mixture containing a solvent and the target includes the steps of flashing off a vapor mixture of said solvent and said target in an evaporator, separating said target from said vapor mixture, and providing additional solvent to said evaporator to maintain the temperature of said evaporator substantially below the boiling point of said target. The process also includes the step of removing accumulated non-volatile components from said evaporator by allowing the non-volatile components to precipitate from a mixture of the target and the solvent.Type: GrantFiled: September 30, 2004Date of Patent: April 13, 2010Inventor: Arthur F. Clark
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Patent number: 7683221Abstract: A process for the manufacture of alkylene glycol by the hydration of alkylene oxide using a soluble catalyst that permits the separation of the reaction product into an alkylene glycol product stream and a recycle stream without the significant precipitation of the soluble catalyst from the recycle stream.Type: GrantFiled: June 4, 2004Date of Patent: March 23, 2010Assignee: Shell Oil CompanyInventors: Joseph Broun Powell, Eugene Marie Godfried Andre Van Kruchten
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Publication number: 20100041925Abstract: A method and apparatus are disclosed for the recovery of ethylene glycol in a polyethylene terephthalate(PET) production process, in which water accumulating in the esterification reaction is mixed with a process fluid containing 2-methyl-1,3-dioxolane (MDO). The mixing is carried out in a tank arranged upstream of a rectification column. Through the increase in the water content in the fluid, a shift in the reaction equilibrium takes place and consequently a cleavage of the 2-methyl-1,3-dioxolane present into ethylene glycol and acetaldehyde takes place. Following the cleavage reaction, the mixture is fed from the tank into a rectification column, whereby the ethylene glycol produced from the cleavage reaction is returned to the PET production process.Type: ApplicationFiled: August 5, 2009Publication date: February 18, 2010Inventors: Randolf Reimann, Rolf Ambrassat
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Patent number: 7658893Abstract: An apparatus for carrying out a continuous process for preparing propylene glycols.Type: GrantFiled: May 26, 2006Date of Patent: February 9, 2010Assignee: BASF AktiengesellschaftInventors: Peter Bassler, Hans-Georg Goebbel, Joaquim Henrique Teles, Peter Rudolf
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Patent number: 7649120Abstract: This invention relates to a method of extracting solanesol by microwave-assisted from potato stems and/or leaves. In particular, the invention provides a technique whereby the solanesol can be extracted effectively, in a relatively short period of time with respect to conventional extraction methods and allows for an enhanced extraction yield. The invention has bright perspectives in promoting local economic development and increasing farmers' income.Type: GrantFiled: February 18, 2009Date of Patent: January 19, 2010Assignee: Northwest Normal UniversityInventors: Ji Zhang, Xiaolong Xu, Tong Chen, Junyi Ma, Jian Yao, Junyu Liang, Yunpu Wang, Junlong Wang, Guoxue Liu
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Publication number: 20090264687Abstract: Hydrogenolysis systems are provided that can include a reactor housing an Ru-comprising hydrogenolysis catalyst and wherein the contents of the reactor is maintained at a neutral or acidic pH. Reactant reservoirs within the system can include a polyhydric alcohol compound and a base, wherein a weight ratio of the base to the compound is less than 0.05. Systems also include the product reservoir comprising a hydrogenolyzed polyhydric alcohol compound and salts of organic acids, and wherein the moles of base are substantially equivalent to the moles of salts or organic acids. Processes are provided that can include an Ru-comprising catalyst within a mixture having a neutral or acidic pH. A weight ratio of the base to the compound can be between 0.01 and 0.05 during exposing.Type: ApplicationFiled: April 16, 2008Publication date: October 22, 2009Inventors: Johnathan E. Holladay, Danielle S. Muzatko, James F. White, Alan H. Zacher