Carbon Monoxide Utilized Patents (Class 560/341)
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Patent number: 8802890Abstract: The present invention relates to a process for manufacturing isocyanates from an amine compound. The process comprises the steps of a) Providing chlorine; b) Providing carbon monoxide; c) Reacting said chlorine and said carbon monoxide for providing phosgene, the carbon monoxide being provided in an adjustable molar excess; d) Providing an amine compound and phosgenating said amine compound using said phosgene thereby providing said isocyanate; the process further comprises adjusting said adjustable molar excess, i.e. the molar excess of carbon monoxide, for adjusting the color of the isocyanate.Type: GrantFiled: November 5, 2009Date of Patent: August 12, 2014Assignee: Huntsman International LLCInventors: Robert Henry Carr, Johannes Lodewijk Koole, Udo Brian Dave Mike Rodger Bruinsma
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Publication number: 20140088321Abstract: A process for producing an aldehyde compound of the invention comprising: reacting a compound represented by the following formula (a1) or (a2) with a hydrogen and a carbon monoxide in a presence of a compound containing a metal belonging to Groups 8 to 10 and a phosphorous compound so as to satisfy the following conditions (1) and (2) to synthesize an aldehyde compound; wherein the condition (1) is that a content of a metal included in the compound containing a metal belonging to Groups 8 to 10 is 0.Type: ApplicationFiled: May 7, 2012Publication date: March 27, 2014Applicant: Mitsui Chemicals, Inc.Inventors: Shigetoshi Kuma, Michiharu Sakata, Kouichi Tokunaga, Chitoshi Shimakawa, Naoyuki Kakinuma, Masayuki Furuya, Mamoru Tanaka
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Patent number: 8288584Abstract: The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.Type: GrantFiled: September 11, 2008Date of Patent: October 16, 2012Assignee: BASF SEInventors: Carsten Knoesche, Andreas Woelfert, Torsten Mattke, Eckhard Stroefer, Heinrich-Josef Blankertz, Bernhard Geissler
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Publication number: 20120172620Abstract: The present invention relates to a process for preparing light-coloured polyphenylene-polymethylene-polyisocyanate (PMDI), comprising the steps (a) providing carbon monoxide and chlorine, (b) reacting carbon monoxide with chlorine to form phosgene, (c) reacting the phosgene from step (b) with at least one primary amine with the exception of mono- and polyphenylene-polymethylene polyamines with an excess of phosgene to form an at least one isocyanate containing reaction solution, and hydrogen chloride, (d) separating excess phosgene from the isocyanate-containing reaction solution obtained in step (c), (e) providing at least one polyphenylene-polymethylene polyamine, and (f) reacting at least a portion of the phosgene separated in step (d) with the at least one polyphenylene-polymethylene polyamine to form the light-coloured polyphenylene-polymethylene polyisocyanate.Type: ApplicationFiled: July 7, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Heiner Schelling, Jon S. Speier, Eckhard Stroefer, Byoung-Yeon Kim
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Publication number: 20120108843Abstract: The present invention accordingly provides a process for preparing light-coloured polyphenylene-polymethylene polyisocyanates comprising the steps (a) providing an amount of chlorine, (b) separating the chlorine provided in the step (a) to obtain a first chlorine fraction having a content of free and bound bromine and iodine of <50 ppm and a second chlorine fraction having an increased content of free and bound bromine and iodine that depends on the original amount of bromine and iodine in the chlorine provided in step (a) and the separation split, (c) reacting carbon monoxide with at least a portion of the first chlorine fraction to form a first phosgene fraction, (d) reacting carbon monoxide with at least a part of the second chlorine fraction to form a second phosgene fraction, (e) reacting at least a portion of a first phosgene fraction with at least one amine of the diphenylmethane diamine series (MDA) to form the corresponding polyphenylene-polymethylene polyisocyanate (PMDI), and (f) reacting at leaType: ApplicationFiled: July 15, 2010Publication date: May 3, 2012Applicant: BASF SEInventors: Heiner Schelling, Hans-Juergen Pallasch, Eckhard Stroefer, Jon S. Speier, Byoung-Yeon Kim
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Patent number: 8153838Abstract: An isocyanate is produced by: (a) reacting chlorine with carbon monoxide to form phosgene, (b) reacting the phosgene with an organic amine to form an isocyanate and hydrogen chloride, (c) separating the isocyanate and hydrogen chloride, (d) optionally, purifying the hydrogen chloride, (e) preparing an aqueous solution of the hydrogen chloride, (f) optionally, purifying the aqueous solution of hydrogen chloride, (g) subjecting the aqueous hydrogen chloride solution to electrochemical oxidation to form chlorine, and (h) returning at least a portion of the chlorine produced in (g) to (a).Type: GrantFiled: June 30, 2008Date of Patent: April 10, 2012Assignee: Bayer MaterialScience AGInventors: Andreas Bulan, Rainer Weber, Wolfgang Lorenz, Gerhard Moormann, Friedhelm Kämper, Berthold Keggenhoff
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Publication number: 20110224395Abstract: The present invention relates to a process for manufacturing isocyanates from an amine compound. The process comprises the steps of a) Providing chlorine; b) Providing carbon monoxide; c) Reacting said chlorine and said carbon monoxide for providing phosgene, the carbon monoxide being provided in an adjustable molar excess; d) Providing an amine compound and phosgenating said amine compound using said phosgene thereby providing said isocyanate; the process further comprises adjusting said adjustable molar excess, i.e. the molar excess of carbon monoxide, for adjusting the colour of the isocyanate.Type: ApplicationFiled: November 5, 2009Publication date: September 15, 2011Applicant: Huntsman International LLCInventors: Robert Henry Carr, Johannes Lodewijk Koole, Udo Brian Dave Mike Rodger Bruinsma
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Publication number: 20100217035Abstract: The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.Type: ApplicationFiled: September 11, 2008Publication date: August 26, 2010Applicant: BASF SEInventors: Carsten Knoesche, Andreas Woelfert, Torsten Mattke, Eckhard Stroefer, Heinrich-Josef Blankertz, Bernhard Geissler
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Publication number: 20080269515Abstract: Chlorine is prepared by catalytic oxidation of a hydrogen chloride stream having a content of sulfur in elemental or bonded form of less than 100 ppm, preferably less than 50 ppm, more preferably less than 5 ppm, most preferably less than 1 ppm, based on the weight of the hydrogen chloride stream.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Inventors: Michel Haas, Rainer Bruns, Tim Loddenkemper
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Publication number: 20080227999Abstract: A process for the preparation of aromatic carbamates comprising contacting one or more organic carbonates with an aromatic amine or urea in the presence of a catalyst and recovering the resulting aromatic carbamate product, characterized in that the catalyst is a heterogeneous catalyst comprising a Group 12-15 metal compound supported on a substrate.Type: ApplicationFiled: July 17, 2006Publication date: September 18, 2008Inventor: David C. Molzahn
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Patent number: 7423171Abstract: A one-pot process for the synthesis of isocyanates, polyisocyanates or mixtures thereof which includes the steps of: i. preparing a mixture comprising an amine, an alcohol, an oxygen-containing gas, carbon monoxide, a metal complex catalyst selected from the group consisting of macrocyclic complex catalysts and cobalt Shiff base catalysts; and a solvent selected from the group consisting of aliphatic or aromatic halocarbons, perhalogenated alcohols, halogenated ethers, halogenated ketones, perfluorinated hydrocarbons, polymers of chlorotrifluoroethylene having the formula —(CF2—CFCl)n wherein n is between 2 and 10, and mixtures thereof; ii. subjecting the resulting mixture to a first heating under pressure; iii. cooling and depressurizing the mixture resulting from the previous step; and iv. subjecting the mixture of the previous step to a second heating to separate out the isocyanate product from the mixture.Type: GrantFiled: June 20, 2007Date of Patent: September 9, 2008Assignee: Repsol YPF, S.A.Inventors: Francisco Luis Serrano Fernandez, Beatriz Almena Munoz, Ana Padilla Polo, Arancha Orejon Alvarez, Carmen Claver Cabrero, Sergio Castillon Miranda, Pilar Salagre Carnero, Ali Aghmiz
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Patent number: 6916953Abstract: Process for preparing organic isocyanates, which comprises the steps (a) making available a first partial amount of chlorine, with the chlorine of this first partial amount having a content of free and bound bromine and iodine of <400 ppm; (b) making available a second partial amount of chlorine; (c) reacting the first and second partial amounts of chlorine with carbon monoxide to form phosgene; (d) reacting the phosgene from step (c) with one or more primary amines to form the corresponding isocyanates and hydrogen chloride; (e) separating off and, if necessary, purifying the isocyanates formed in step (d); (f) separating off and, if necessary, purifying the hydrogen chloride formed in step (d); (g) catalytically oxidizing at least part of the hydrogen chloride separated off in step (e) by means of oxygen to form chlorine; (h) separating off the chlorine formed in step (g) and using at least a partial amount of the chlorine which has been separated off as second partial amount of chlorine in step (b).Type: GrantFiled: August 27, 2002Date of Patent: July 12, 2005Assignee: BASF AktiengesellschaftInventors: Christian Walsdorff, Martin Fiene, Eckhard Ströfer, Klaus Harth, Jan D. Jacobs, Filip Deberdt
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Patent number: 5194660Abstract: Processes for producing carbamates comprise contacting a first reactant selected from primary amine components, secondary amine components, urea components and mixtures thereof; carbon monoxide; at least one organic hydroxyl component and at least one oxygen-containing oxidizing agent in the presence of a catalyst composition comprising at least one metal macrocyclic complex, preferably in the further presence of a halogen component.Type: GrantFiled: December 21, 1990Date of Patent: March 16, 1993Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Tak W. Leung, Bernard D. Dombek
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Patent number: 4587056Abstract: A process for producing an aliphatic isocyanate from an aliphatic primary amine comprising a carbonylation step in which an aliphatic primary amine is allowed to react with carbon monoxide at a temperature of about 100.degree.-250.degree. C. in the presence of an aromatic hydroxyl compound having a pKa value of not more than about 11, molecular oxygen and a catalyst system comprising at least one member selected from palladium and rhodium metals and components thereof and at least one member selected from iodine and bromine and compounds thereof and a combined separation and recovery step comprising a pyrolysis-distillation reaction in which the mixture of carbonylated products is heated to a temperature of from about 100.degree. to 300.degree. C.Type: GrantFiled: April 10, 1985Date of Patent: May 6, 1986Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Shinsuke Fukuoka, Tomonari Watanabe