Methionine Per Se Or Salt Thereof Patents (Class 562/559)
-
Patent number: 8106237Abstract: The present invention provides a process for producing methionine, which comprises steps of: hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound in a non-stirred continuous first reaction tank, and heat-treating the reaction solution after hydrolysis in a second reaction tank. According to the process of the present invention, a methionine crystal with a higher bulk density can be produced.Type: GrantFiled: June 8, 2009Date of Patent: January 31, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshiyuki Koizumi, Fumio Kubo
-
Patent number: 8101797Abstract: A process for producing methionine advantageously in view of cost, while efficiently recovering useful components, is provided including the following steps: (1) hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound; (2) introducing carbon dioxide into the reaction solution obtained in the step (1) to thereby precipitate methionine, and separating the resulting slurry into a precipitate and a mother liquor; (3) concentrating the mother liquor obtained in the step (2), mixing the resulting concentrate with a lower alcohol, introducing carbon dioxide into the resulting mixture to thereby precipitate methionine and potassium hydrogencarbonate, and separating the resulting slurry into a precipitate and a mother liquor; and (4) concentrating the mother liquor obtained in the step (3), treating the resulting concentrate by heating at a temperature of from 150 to 200° C., and recycling the treated solution for use in step (2).Type: GrantFiled: November 6, 2009Date of Patent: January 24, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshiyuki Koizumi, Akinori Goto, Takushi Azemi
-
Publication number: 20110319659Abstract: A method for producing methionine includes a hydrolyzing step of hydrolyzing 5-(?-methylmercaptoethyl)hydantoin, and a crystallizing step of crystallizing with carbon dioxide introduced into a reaction solution after hydrolysis, to obtain methionine. In the crystallizing step, as carbon dioxide introduced into the hydrolysis reaction solution, carbon dioxide that is separated in a carbon dioxide separation section from a reformed gas formed by steam reforming reaction in a steam reformation section and carbon dioxide that is separated in an exhaust gas separation section from a combustion exhaust gas generated by pure oxygen combustion in a hydrocarbon heating furnace and a reformation reaction heating furnace are used.Type: ApplicationFiled: June 28, 2011Publication date: December 29, 2011Inventors: Motonobu YOSHIKAWA, Takehiro Nakasuji
-
Publication number: 20110229626Abstract: The present invention relates to a method for manufacturing methylmercaptopropionaldehyde (MMP) including at least the following steps: (a) dehydrating glycerol to acrolein from an aqueous solution of glycerol in the presence of an acid catalyst; (b) purifying the aqueous flux from step (a) to obtain a flux of acrolein containing at least 15 wt % of water relative to the acrolein; (c) causing a reaction of the acrolein flux obtained in step (b) with methylmercaptan in the presence of a catalyst; (d) optionally purifying the product obtained in step (c). The method of the invention can also include a reaction of the product obtained in step (c) or (d) with hydrocyanic acid, or sodium cyanide during a step (e) followed by a subsequent transformation to produce methionine or methionine hydroxyanalogue, which can then optionally be purified.Type: ApplicationFiled: November 19, 2009Publication date: September 22, 2011Inventors: Jean-Francois Devaux, Jean-Luc Dubois
-
Publication number: 20110224430Abstract: Provided herein are processes for the production of methionine or selenomethionine from homoserine. In particular, the processes proceed via the production of carbamate intermediates.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: NOVUS INTERNATIONAL INC.Inventors: Stephen J. Lorbert, Kevin A. Trankler, Richard Vonder Embse, Dayna L. Turner, Tracy Rode, James C. Peterson
-
Publication number: 20110224458Abstract: Provided herein are processes for the production of methionine or selenomethionine from homoserine. In particular, the processes proceed via the production of 4-substituted 2-aminobutanoic acid intermediates or derivatives thereof.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: NOVUS INTERNATIONAL INC.Inventors: Stephen J. Lorbert, Kevin A. Trankler, Richard Vonder Embse, Dayna L. Turner, Tracy Rode, Cynthia K. Snoddy, James C. Peterson
-
Publication number: 20110207962Abstract: The present invention aims to provide a method of producing methionine by hydrolyzing M-hydantoin in the presence of a basic potassium compound, which can effectively prevent corrosion of reaction vessels in both the liquid phase and gaseous phase of a hydrolysis solution even at a higher temperature, and enables a longer period of stable production of methionine. Provided is a method of producing methionine, comprising hydrolyzing 5-(?-methylmercaptoethyl)hydantoin in water in the presence of a basic potassium compound in a reaction system having a potassium concentration of not more than 9 wt % at a temperature of not less than 170° C.Type: ApplicationFiled: February 22, 2011Publication date: August 25, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Faber Raymond Ojahan HUTAGALUNG, Yoshiyuki KOIZUMI
-
Publication number: 20110123976Abstract: A method is provided for the parallel identification of one or more metabolite species within a biological sample. The method comprises analyzing the sample to produce a spectrum containing individual spectral peaks representative of the one or more metabolite species contained within the sample; subjecting each of the individual spectral peaks to a statistical pattern recognition analysis to identify the one or more metabolite species contained within the sample; and identifying the one or more metabolite species contained within the sample by analyzing the individual spectral peaks of the spectra.Type: ApplicationFiled: October 13, 2010Publication date: May 26, 2011Applicant: Purdue Research FoundationInventors: M. Daniel Raftery, Vincent Asiago
-
Publication number: 20110033560Abstract: The present invention relates to the use of a preparation comprising a substance that is capable of binding acetaldehyde, and to the use of a filter that is attached to a tobacco product to reduce tobacco and/or alcohol dependence.Type: ApplicationFiled: September 12, 2008Publication date: February 10, 2011Applicant: BIOHIT OYJInventors: Osmo Suovaniemi, Mikko Salaspuro, Ville Salaspuro, Martti Marvola
-
Publication number: 20110034726Abstract: The invention relates to a process for preparing optically active ?-aminoacetals by resolution of a racemic mixture or of a mixture of enantiomers via the formation of diastereoisomeric salts, and also novel intermediates in the form of diastereoisomeric salts.Type: ApplicationFiled: January 21, 2009Publication date: February 10, 2011Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE)Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
-
Publication number: 20110033362Abstract: The present invention relates to an improved process for producing hydrocyanic acid by reaction of ammonia with methane in which a small amount of at least one sulphur-containing compound corresponding to the general formula R S (S)x—R? is added, in which R and R? which are identical or different, represent a linear or branched alkyl or alkenyl radical containing from 1 to 5 carbon atoms, and x is a number ranging from 1 to 5, to the reactive gas mixture before it passes over the catalyst. The process according to the invention makes it possible to obtain improved yields of HCN. Another subject of the invention relates to the use of the resulting product for producing methionine, acetone cyanohydrin, adiponitrile or sodium cyanide.Type: ApplicationFiled: March 20, 2009Publication date: February 10, 2011Applicant: ARKEMA FRANCEInventors: Enzo Formentin, Catherine Schafer
-
Patent number: 7884240Abstract: The invention relates to a method for production of D- and/or L-methionine via D- and/or L-homoserine with subsequent chemical transformation to give methionine.Type: GrantFiled: February 13, 2008Date of Patent: February 8, 2011Assignee: Evonik Degussa GmbHInventors: Martin Hateley, Christoph Kobler, Christoph Weckbecker, Thomas Häussner, Jürgen Bilz, Klaus Huthmacher
-
Publication number: 20110008261Abstract: The invention relates to a dynamic nuclear polarisation (DNP) method for producing hyperpolarised amino acids and amino sulphonic acids and compositions for use in the method. As a sample, an ammonium salt of an amino acid, an ammonium salt of an aminosulphonic acid, a carboxylate salt of an amino acid, a sulphonate salt of an aminosulphonic acid or mixtures thereof is used.Type: ApplicationFiled: February 3, 2009Publication date: January 13, 2011Applicant: GE HEALTHCARE LIMITEDInventors: Mathilde H. Lerche, Magnus Karlsson, Pernille R. Jensen
-
Publication number: 20100304449Abstract: The invention relates to a method for producing different products comprising a target substance, particularly amino acids or vitamins, wherein the target substance is produced by fermentation.Type: ApplicationFiled: December 11, 2007Publication date: December 2, 2010Inventors: Matthias Moll, Stefan Stockhammer, Hans Christian Alt, Joachim Pohlisch, Klaus Huthmacher
-
Publication number: 20100121102Abstract: A process for producing methionine advantageously in view of cost, while efficiently recovering useful components, is provided including the following steps: (1) hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound; (2) introducing carbon dioxide into the reaction solution obtained in the step (1) to thereby precipitate methionine, and separating the resulting slurry into a precipitate and a mother liquor; (3) concentrating the mother liquor obtained in the step (2), mixing the resulting concentrate with a lower alcohol, introducing carbon dioxide into the resulting mixture to thereby precipitate methionine and potassium hydrogencarbonate, and separating the resulting slurry into a precipitate and a mother liquor; and (4) concentrating the mother liquor obtained in the step (3), treating the resulting concentrate by heating at a temperature of from 150 to 200° C., and recycling the treated solution for use in step (2).Type: ApplicationFiled: November 6, 2009Publication date: May 13, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiyuki KOIZUMI, Akinori GOTO, Takushi AZEMI
-
Publication number: 20100121104Abstract: A process for producing methionine, while corrosion of a pipe and a reaction vessel is well inhibited, is provided including the following steps (1) to (3), wherein a content of thiols in 3-methylthiopropanal is 500 ppm or less, based on the propanal, and a content of hydrogen sulfide in 3-methylthiopropanal is 60 ppm or less, based on the propanal; step (1) in which 3-methylthiopropanal is reacted with hydrogen cyanide in the presence of a base to give 2-hydroxy-4-methylthiobutanenitrile; step (2) in which the 2-hydroxy-4-methylthiobutanenitrile obtained in step (1) is reacted with ammonium carbonate to give 5-(?-methylmercaptoethyl)hydantoin; and step (3) in which the 5-(?-methylmercaptoethyl)hydantoin obtained in step (2) is hydrolyzed in the presence of a basic potassium compound to give methionine.Type: ApplicationFiled: November 6, 2009Publication date: May 13, 2010Applicant: Sumitomo Chemical Company, LimitedInventors: Takushi AZEMI, Yoshiyuki KOIZUMI
-
Publication number: 20100121103Abstract: A process for producing methionine advantageously in view of cost, while efficiently recovering useful components, is provided, including the following steps: (1) hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound; (2) introducing carbon dioxide into the reaction solution obtained in step (1) to thereby precipitate methionine, and separating the resulting slurry into a precipitate and a mother liquor; (3) concentrating the mother liquor obtained in step (2), mixing the resulting concentrate with a lower alcohol, introducing carbon dioxide into the resulting mixture to thereby precipitate methionine and potassium hydrogencarbonate, and separating the resulting slurry into a precipitate and a mother liquor; and (4) concentrating the mother liquor obtained in step (3), treating the resulting concentrate by heating at a temperature of from 150 to 200° C., and recycling the treated solution for use in step (3).Type: ApplicationFiled: November 6, 2009Publication date: May 13, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiyuki KOIZUMI, Akinori GOTO, Takushi AZEMI
-
Patent number: 7655072Abstract: A process for purifying CO2 offgas streams to free them of chemical compounds, and to the recycling of the purified gas streams into the production process.Type: GrantFiled: July 20, 2005Date of Patent: February 2, 2010Assignee: Degussa AGInventors: Hans-Joachim Hasselbach, Jose Vanrobaeys, Martin Körfer
-
Publication number: 20100004486Abstract: The present invention provides a process for producing methionine which is advantageous from the viewpoints of cost and wastewater disposal, and which comprises the following steps (1) to (5): (1) a reaction step comprising hydrolysis of 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound; (2) a first crystallization step comprising introduction of carbon dioxide into the reaction solution obtained in the step (1) to precipitate methionine, and separation of the resultant slurry into a precipitate and a mother liquor; (3) a second crystallization step comprising concentration of the mother liquor obtained in the step (2), mixing with a lower alcohol, introduction of carbon dioxide into the mixture to precipitate methionine and potassium hydrogen carbonate, and separation of the resultant slurry into a precipitate and a mother liquor; (4) a heating step comprising concentration of the mother liquor obtained in the step (3) followed by a heating treatment at 150 to 20Type: ApplicationFiled: June 8, 2009Publication date: January 7, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiyuki KOIZUMI, Akinori Goto, Takushi Azemi
-
Patent number: 7635787Abstract: A process for producing methionine by hydrolysis of 5-(?-methylmercaptoethyl)hydantoin in the presence of an alkali, in which the concentration of hydrogen sulfide is 5 ppm or less in a solution used for hydrolysis comprising 5-(?-methylmercaptoethyl)hydantoin and the alkali, whereby methionine can be stably produced for a long period of time.Type: GrantFiled: March 25, 2008Date of Patent: December 22, 2009Assignee: Sumitomo Chemical Company, LimitedInventors: Kazuo Fujita, Kozo Onishi
-
Publication number: 20090306426Abstract: The present invention provides a process for producing methionine, which comprises steps of: hydrolyzing 5-[2-(methylthio)ethyl]imidazolidine-2,4-dione in the presence of a basic potassium compound in a non-stirred continuous first reaction tank, and heat-treating the reaction solution after hydrolysis in a second reaction tank. According to the process of the present invention, a methionine crystal with a higher bulk density can be produced.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshiyuki Koizumi, Fumio Kubo
-
Publication number: 20090281353Abstract: The present invention features improved processes and organisms for the production of methionine. The invention demonstrates that a ?metF organism or a ?metE AmetH organism, for example, mutants of C. glutamicum or E. coli, can use a methyl capped sulfide source, e.g., dimethyl disulfide (DMDS), as a source of both sulfur and a methyl group, bypassing the need for MetH/MetE and MetF activity and the need to reduce sulfate, for the synthesis of methionine. Also described in this patent are data implicating MetY (also called MetZ) as an enzyme that incorporates a methyl capped sulfide source, e.g., DMDS, into methionine. A ?metF ?metB strain of C. glutamicum can use a methyl capped sulfide source, e.g., DMDS, as a source of both sulfide and a methyl group. Furthermore, methionine production by engineered prototrophic organisms that overproduce O-acetyl-homoserine was improved by the addition of a methyl capped sulfide source, e.g., DMDS.Type: ApplicationFiled: July 18, 2006Publication date: November 12, 2009Applicant: BASF AGInventors: Oskar Zelder, Stefan Haefner, Andrea Herold, Corinna Klopprogge, Hartwig Schroder, R. Rogers Yocum, Mark K. Williams
-
Patent number: 7572937Abstract: The present invention relates to a sequence for the preparation of amino acids, for example alpha amino acids, in particular methionine, by making use of an amidocarbonylation reaction and reuse of the catalyst.Type: GrantFiled: May 14, 2005Date of Patent: August 11, 2009Assignee: Evonik Degussa GmbHInventors: Martin Hateley, Thomas Hauhlner, Christoph Weckbecker, Klaus Huthmacher, Dieter Buss
-
Patent number: 7534916Abstract: In the process for producing methionine of the present invention uses, as an equipment material for a step of hydrolyzing 5-(?-methylmercaptoethyl)hydantoin in the presence of potassium carbonate to produce methionine, a stainless steel containing 21.0 to 30.0% by weight of a Cr element, 2.5 to 11.0% by weight of a Ni element and 1.0 to 5.0% by weight of a Mo element, a ratio of the total content of the Cr element and the Mo element to the content of the Ni element being from 4.7 to 14.0, is used.Type: GrantFiled: April 23, 2007Date of Patent: May 19, 2009Assignee: Sumitomo Chemical Company, LimitedInventor: Kozo Onishi
-
Publication number: 20090105328Abstract: An Amino Acid Compound is described. The Amino Acid Compound may comprise an Amino Acid and one of a Nitrate and a Nitrite. The Amino Acid may be one of Aspartic Acid, Cysteine, Glycine, Lysine, Methionine, Proline, Tyrosine, and Phenylalanine.Type: ApplicationFiled: December 17, 2008Publication date: April 23, 2009Inventors: Ronald Kramer, Alexander Nikolaidis
-
Publication number: 20090076302Abstract: A method for preparing ?-keto acids, especially ?-ketomethionine, and/or derivatives thereof, whereby an aldehyde is reacted with thiols to give a corresponding dithioacetal, the dithioacetal formed, is reacted with an electrophile in the presence of a strong base, and the resulting ?,?-(dithio)carboxylic acid is solvolyzed with acid-catalysis to release thiol and give the ?-keto acid or a derivative thereof. Umpolung of aliphatic or aromatic aldehydes is effected by reaction with thiols.Type: ApplicationFiled: July 9, 2008Publication date: March 19, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Christoph Kobler, Martin Hateley, Philipp Roth, Barbara Jaeger, Christoph Weckbecker, Klaus Huthmacher
-
Publication number: 20080242888Abstract: A process for producing methionine by hydrolysis of 5-(?-methylmercaptoethyl)hydantoin in the presence of an alkali, in which the concentration of hydrogen sulfide is 5 ppm or less in a solution used for hydrolysis comprising 5-(?-methylmercaptoethyl)hydantoin and the alkali, whereby methionine can be stably produced for a long period of time.Type: ApplicationFiled: March 25, 2008Publication date: October 2, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kazuo FUJITA, Kozo Onishi
-
Publication number: 20080146840Abstract: The invention relates to a method for production of D- and/or L-methionine via D- and/or L-homoserine with subsequent chemical transformation to give methionine.Type: ApplicationFiled: February 13, 2008Publication date: June 19, 2008Applicant: Degussa GmbHInventors: Martin Hateley, Christoph Kobler, Christoph Weckbecker, Thomas Haussner, Jurgen Bilz, Klaus Huthmacher
-
Patent number: 7368600Abstract: The invention relates to a method for production of D- and/or L-methionine via D- and/or L-homoserine with subsequent chemical transformation to give methionine.Type: GrantFiled: January 25, 2007Date of Patent: May 6, 2008Assignee: Degussa GmbHInventors: Martin Hateley, Christoph Kobler, Christoph Weckbecker, Thomas Häussner, Jürgen Bilz, Klaus Huthmacher
-
Patent number: 7304181Abstract: More efficient and/or economical methods for synthesizing heptapeptide alcohol analogs of oxytocin are provided along with novel intermediates which are useful in synthesizing such oxytocin analogs. Efficient and economical methods for synthesizing intermediates useful in synthesizing these oxytocin analogs are also provided.Type: GrantFiled: July 14, 2006Date of Patent: December 4, 2007Assignee: Ferring BVInventors: Kazimierz Wisniewski, Jacek Stalewski, Guangcheng Jiang
-
Publication number: 20070225523Abstract: Disclosed is a process for producing methionine, which comprises hydrolyzing 5-(?-methylmercaptoethyl)hydantoin using at least one potassium compound selected from potassium carbonate, potassium bicarbonate and potassium hydroxide, crystallizing the hydrolyzate under pressure of carbonic acid gas thereby separating and collecting methionine, and heat treating at least a portion of the resulting filtrate thereby recovering methionine dimer contained in the filtrate as methionine, the process being characterized by using, as a material of an equipment of a facility for recovery through a heat treatment, a ferritic stainless steel containing 17.0 to 32.0% by weight of Cr element of, 1.0 to 3.0% by weight of Mo element and 0.6% by weight or less of Ni element, or zirconium.Type: ApplicationFiled: March 23, 2007Publication date: September 27, 2007Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kazuo Fujita, Yoshihisa Tokumasu
-
Patent number: 7238375Abstract: This invention relates to a composition of matter for producing hair growth and preventing hair loss in humans and the method for using said composition. The composition comprises four complexes and a carrier liquid, mixed together and added to any topical treatment or produced as an ingestible dietary supplement. Complexes 1, 2, and 3 are comprised of substances that prevent hair loss while Complex 4 promotes hair growth. Complex 1 is comprised of octyl butyrate and glutaminpeptides. Complex 2 comprises a mixture of minerals, plant extracts, vitamin B6, and linolenic acid. Complex 3 comprises a mixture of Ginkgo biloba extract, emu oil, a source of silicon, and a blend of amino acids. Complex 4 comprises a mixture of several plant extracts. The product should be used by the consumer at regular intervals, preferably 5 to 7 times per week in the form of a serum.Type: GrantFiled: December 20, 2004Date of Patent: July 3, 2007Inventor: Stephen C. Perry
-
Patent number: 7223884Abstract: A process by which high-quality crystals of methionine in the form of granules or thick plates having high bulk density can be stably produced. The process for production of methionine comprises the step of hydrolyzing 5-(2-methylmercaptoethyl)hydantoin into a metal salt of methionine by the use of at least one metal compound selected from the group consisting of metal hydroxides, metal carbonates, and metal bicarbonates, the step of neutralizing the metal salt of methionine under pressurizing with carbon dioxide to crystallize methionine, the step of separating the resulting mixture into methionine and a filtrate, and the step of recycling the filtrate to the step of hydrolysis of 5-(2-methylmercaptoethyl)-hydantoin, wherein the content of methionine polymers and/or salts thereof in the aqueous solution used in the crystallization step in terms of methionine polymers is adjusted to 8 wt % or below based on the amount of methionine to be formed.Type: GrantFiled: November 28, 2002Date of Patent: May 29, 2007Assignee: Nippon Soda Co., Ltd.Inventors: Toru Kawabe, Toshimichi Okubo, Tadashi Umezawa, Masayuki Sato, Takeomi Koga
-
Patent number: 7195772Abstract: An amino-acid iodine complex, viz. amino-acid amino-carboxyl iodine complex, was provided wherein its coordinate center is iodine molecule, complex reagent is amino-acid, sites of complexing reaction are amino and carboxyl groups of amino-acid. The complex can be used for the production of feedstuff, food additive, disinfectant, antiseptic and medicament. Also provided is a method for the production of said complex comprising opening the inner-complex ring of amino-acid by acid catalysis and allowing the amino-acid to combine with iodine molecule to form an amino-acid amino-carboxyl iodine complex; because amino-acid is a nutriment and amino-carboxyl complex is achieved, their introduction not only increases the nutritional function of the complex and improves the stability of iodine, but also is beneficial to the environment protection and enhances the disinfecting activity against viruses and bacteria.Type: GrantFiled: October 19, 2001Date of Patent: March 27, 2007Inventors: Xiongfei Zeng, Jiang Zeng, Yan Zeng
-
Patent number: 7179938Abstract: The invention relates to a process for the preparation of methionine of high bulk density, in which a mixture which comprises a compound which has a foaming action and a compound which influences the crystallization is added to the hydrolysis solution, and to the mixture itself.Type: GrantFiled: August 6, 2002Date of Patent: February 20, 2007Assignee: Degussa AGInventors: Christoph Weckbecker, Horst Krull, Jürgen Bilz, Klaus Huthmacher, Hans Joachim Hasselbach
-
Patent number: 6992067Abstract: Compounds of the formula I, in which R1, R2, R3, R4, R5, and R6 have the meanings given in the description, and their physiologically acceptable salts. The compounds are suitable for use, for example, as hypolipidemics.Type: GrantFiled: December 19, 2001Date of Patent: January 31, 2006Assignee: Aventis Pharma Deutschland GmbHInventors: Heiner Glombik, Werner Krame, Stefanie Flohr, Wendelin Frick, Hubert Heuer, Gerhard Jaehne, Andreas Lindenschmidt, Hans-Ludwig Schäfer
-
Patent number: 6989464Abstract: A process for the preparation of granules of methionine which process comprises (a) forming a mixture of methionine powder, a binding agent and water (b) applying the mixture to high shear rate mixing, thereby forming granules of said mixture; and (c) drying said granules. Granules produced by the aforementioned process characterised by a bulk density of at least 0.6 g/cm3, and a particle siye distribution of from 50 to 2000 microns are also claimed as well as an animal feed composition comprising the granules.Type: GrantFiled: July 16, 2001Date of Patent: January 24, 2006Assignee: Adisseo France S.A.S.Inventors: Veronique Chiavazza, Bruno Alban
-
Patent number: 6911557Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.Type: GrantFiled: August 14, 2002Date of Patent: June 28, 2005Assignee: Adisseo France S.A.S.Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
-
Patent number: 6846843Abstract: Thio-alpha-amino acids of general formula (I), wherein R1, R2 and R3 have the meanings given in the description, methods for producing them, and medicaments containing these compounds. The invention also provides methods for treating pain and other diseases using the pharmaceutical compositions comprising the thioamino acids.Type: GrantFiled: March 14, 2003Date of Patent: January 25, 2005Assignee: Gruenenthal GmbHInventors: Boris Chizh, Matthias Gerlach, Michael Haurand, Claudia Puetz, Gero Gaube, D. Enders
-
Patent number: 6797284Abstract: Phytopharmaceutical food products which contain plant extracts and aminoacids and which can be used in order to reduce tobacco smoke addiction.Type: GrantFiled: December 11, 2001Date of Patent: September 28, 2004Inventor: Ursula Mariah Rothlin
-
Patent number: 6696611Abstract: The present invention provides a method for enantioselectively reducing a prochiral carbon centered radical having one or more electron donator groups attached directly to the central prochiral carbon atom of the radical, and/or attached to a carbon atom within 1 to 4 atoms of the central prochiral carbon atom, comprising treating said radical with a chiral non-racemic organotin hydride in the presence of a Lewis acid.Type: GrantFiled: July 27, 2001Date of Patent: February 24, 2004Assignee: Chirogen Pty. LimitedInventors: Dainis Dakternieks, Carl H. Schiesser, Tamara Perchyonok
-
Patent number: 6673942Abstract: The present invention relates to a process for the resolution of DL-racemic mixtures of compounds which crystalize in the form of a conglumerate. Both, the D and L-enantiomers are obtained according to the invention in a industrially feasable process by adding chiral enantioselective polymers to the supersaturated solution of the racemat to inhibit crystalization of one enantiomer. Next a DL-racemic mixture of said compound is suspended in about twice the amount of the crystallized enantiomer. Consequently, the opposite enantiomer could be recovered by said suspension by physical separation.Type: GrantFiled: July 23, 2002Date of Patent: January 6, 2004Assignees: Degussa AG, Yeda Research and Development Co., Ltd.Inventors: Matthias Kottenhahn, Guenter Knaup, Karlheinz Drauz, Meir Lahav, David Zbaida
-
Publication number: 20030165611Abstract: A process for the preparation of granules of methionine which process comprises (a) forming a mixture of methionine powder, a binding agent and water (b) applying the mixture to high shear rate mixing, thereby forming granules of said mixture; and (c) drying said granules. Granules produced by the aforementioned process characterised by a bulk density of at least 0.6 g/cm3, and a particle siye distribution of from 50 to 2000 microns are also claimed as well as an animal feed composition comprising the granules.Type: ApplicationFiled: January 21, 2003Publication date: September 4, 2003Inventors: Veronique Chiavazza, Bruno Alban
-
Patent number: 6552222Abstract: A process for the preparation of racemic amino acids, characterized in that an acylamino acid of the formula R1—CH(NH—CO—R2)COOH wherein R1 is hydrogen, a linear, branched or cyclic alkyl that has from 1 to 7 carbon atoms and that may contain substituents such as a hydroxyl, alkyloxy or alkylthio group; and R2 is a hydrogen atom or an alkyl having from 1 to 3 carbon atoms; is heated in the presence of water, in a pressure-resistant vessel, to a temperature in the range from 110° C. to 220° C. and is hydrolyzed.Type: GrantFiled: August 13, 2001Date of Patent: April 22, 2003Assignee: Degussa AGInventors: Klaus Huthmacher, Christoph Weckbecker, Horst Weigel
-
Patent number: 6545179Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.Type: GrantFiled: February 13, 2001Date of Patent: April 8, 2003Assignee: Aventis Animal Nutrition, SAInventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
-
Patent number: 6417395Abstract: The invention concerns a method for preparing methionine aminoamide. The invention also concerns the preparation of methionine without co-production of salts, from an aqueous solution containing essentially methionine aminonitrile by producing during a first step aminoamide followed by two complementary steps.Type: GrantFiled: July 12, 2001Date of Patent: July 9, 2002Assignee: Aventis Animal Nutrition S.A.Inventors: Hervé Ponceblanc, Olivier Favre-Bulle, Georges Gros
-
Publication number: 20010037038Abstract: A process for the production of methionine which comprises (a) hydrolyzing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.Type: ApplicationFiled: February 13, 2001Publication date: November 1, 2001Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Philippe Laval, Georges Gros
-
Patent number: 6156908Abstract: The invention is directed to a process for the preparation of lactams of Formula I. It is further directed to new advantageous intermediates of Formula II and the use thereof. By the cyclization of compounds of Formula II, compounds of Formula I are obtained.Type: GrantFiled: September 10, 1999Date of Patent: December 5, 2000Assignee: Rohm Gesellschaft, GmbHInventors: Karlheinz Drauz, Ingo Klement, Gunter Knaup
-
Patent number: 6126972Abstract: A process for the preparation of aqueous sodium methioninate solutions having a low sodium carbonate content from the crude hydrolysis mixtures obtained in the hydrolysis of 5-(.beta.-methylmercaptoethyl)-hydantoin with from 1.1 to 6 equivalents of sodium hydroxide and/or sodium carbonate, by separating off sodium carbonate monohydrate while heating, and granulates subsequently prepared from those solutions by various processes.Type: GrantFiled: May 11, 1999Date of Patent: October 3, 2000Assignee: Degussa-Huls AGInventors: Martin Korfer, Lutz Rohland, Wolfram Binder, Hans Joachim Hasselbach, Hans Christian Alt, Klaus Huthmacher, Heidemarie Kniesel
-
Patent number: 6080887Abstract: With known methods of racemizing N-acetyl-D(L)-.alpha.-amino carboxylic acids in the non-aqueous state by heating them to temperatures above room temperatures, significant quantities of by-products are formed, especially acetyl dipeptides. By converting at least a proportion of the N-acetyl-D(L)-.alpha.-amino carboxylic acids to corresponding N-acetyl-D(L)-.alpha.-amino carboxylic acid salts before or during the heating, it is possible to increase the sojourn time of the educt which is to be racemized at higher temperatures without any evident increase in the quantity of by-product formed (in particular acetylated dipeptides). Also disclosed is the production of optically active amino acids by enzymatic splitting of racemic compounds.Type: GrantFiled: June 10, 1998Date of Patent: June 27, 2000Assignee: Degussa AktiengesellschaftInventors: Karlheinz Drauz, Michael Karrenbauer, Andreas Bommarius, Gunter Knaup