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公开(公告)号：US11179700B2
公开(公告)日：2021-11-23
申请号：US16485982
申请日：2017-02-20
Applicant: Rohm and Haas Company
Inventor： Jon Busick , Philippe P. Maillot , Joy L. Mendoza
Abstract: The present invention provides materials for improving the ignition of gaseous reactants in metal catalyzed oxidation reactions comprising a metal catalyst gauze, preferably, a platinum/rhodium catalyst gauze, having in contact therewith, from 0.5 to 1.5 wt. %, based on the weight of the metal catalyst gauze, of one or more pieces of previously used metal catalyst gauze. Further, methods of making the metal catalyst materials comprise shaping the pieces of previously used metal catalyst gauze and placing them equidistant from each other in contact with or on the surface of the metal catalyst gauze. And methods of using the materials comprise feeding into the reactor a gas mixture of oxygen or air and one or more reactant gases, and igniting the gas mixture at the surface of one or more or all of the pieces of previously used metal catalyst.
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公开(公告)号：US09394224B2
公开(公告)日：2016-07-19
申请号：US14382687
申请日：2013-02-11
Applicant: Rohm and Haas Company
Inventor： David A. Flosser , Philippe P. Maillot , Nawal K. Sharma , Alejandro Ceron , Mingyu Ye
IPC: C07C67/02 , C07D233/34
CPC classification number: C07C67/02 , C07D233/34 , Y02P20/582
Abstract: A transesterification process produces a (meth)acrylate ester product from a mixture comprising an alkyl(meth)acrylate reactant, an alcohol reactant, a catalyst, and a polymerization inhibitor, wherein the water content in the reaction zone at the start of the transesterification step is from 0.2 to 1.1 weight percent, based on the weight of the materials in the reaction zone. The mixture is subjected to reaction conditions sufficient to produce a product (meth)acrylate and a product alcohol, which are different than the reactants.
Abstract translation: 酯交换方法由包含（甲基）丙烯酸烷基酯反应物，醇反应物，催化剂和阻聚剂的混合物产生（甲基）丙烯酸酯产物，其中在酯交换步骤开始时反应区中的水含量 基于反应区中材料的重量，为0.2-1.1重量％。 使混合物经受足以产生与反应物不同的产物（甲基）丙烯酸酯和产物醇的反应条件。
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公开(公告)号：US20150045583A1
公开(公告)日：2015-02-12
申请号：US14382686
申请日：2013-02-11
Applicant: Rohm and Haas Company
Inventor： David A. Flosser , Philippe P. Maillot , Nawal K. Sharma , Alejandro Ceron , Mingyu Ye
IPC: C07C67/317
CPC classification number: C07C67/317 , C07C67/03 , C07D233/32 , Y02P20/582 , C07C69/54
Abstract: A transesterification process produces a (meth)acrylate ester product from a mixture comprising an alkyl(meth)acrylate reactant, an alcohol reactant, a catalyst, and a polymerization inhibitor. The mixture is subjected to reaction conditions sufficient to produce a product (meth)acrylate and a product alcohol, which are different than the reactants.
Abstract translation: 酯交换方法由包含（甲基）丙烯酸烷基酯反应物，醇反应物，催化剂和阻聚剂的混合物产生（甲基）丙烯酸酯产物。 使混合物经受足以产生与反应物不同的产物（甲基）丙烯酸酯和产物醇的反应条件。
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公开(公告)号：US20200230577A1
公开(公告)日：2020-07-23
申请号：US16485982
申请日：2017-02-20
Applicant: Rohm and Haas Company
Inventor： Jon Busick , Philippe P. Maillot , Joy L. Mendoza
Abstract: The present invention provides materials for improving the ignition of gaseous reactants in metal catalyzed oxidation reactions comprising a metal catalyst gauze, preferably, a platinum/rhodium catalyst gauze, having in contact therewith, from 0.5 to 1.5 wt. %, based on the weight of the metal catalyst gauze, of one or more pieces of previously used metal catalyst gauze. Further, methods of making the metal catalyst materials comprise shaping the pieces of previously used metal catalyst gauze and placing them equidistant from each other in contact with or on the surface of the metal catalyst gauze. And methods of using the materials comprise feeding into the reactor a gas mixture of oxygen or air and one or more reactant gases, and igniting the gas mixture at the surface of one or more or all of the pieces of previously used metal catalyst.
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公开(公告)号：US10294190B2
公开(公告)日：2019-05-21
申请号：US15521421
申请日：2015-10-13
Applicant: Rohm and Haas Company
Inventor： Stacy W. Hoy, IV , Joy L. Mendoza , Mingyu Ye , Philippe P. Maillot
Abstract: Fouling of an MMA process is reduced by strategically removing an aqueous slip stream.
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Patent Agency Ranking
公开(公告)号：US20170298000A1
公开(公告)日：2017-10-19
申请号：US15521421
申请日：2015-10-13
Applicant: Rohm and Haas Company
Inventor： Stacy W. Hoy, IV , Joy L. Mendoza , Mingyu Ye , Philippe P. Maillot
CPC classification number: C07C67/20 , B01D3/4294 , B01J19/1875 , B01J2219/0004 , C07C67/58 , C07C69/54
Abstract: Fouling of an MMA process is reduced by strategically removing an aqueous slip stream.
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公开(公告)号：US20170225152A1
公开(公告)日：2017-08-10
申请号：US15407278
申请日：2017-01-17
Applicant: Rohm and Haas Company
Inventor： Jon Busick , Philippe P. Maillot , Joy L. Mendoza
CPC classification number: B01J23/464 , B01J35/06 , C01C3/0216
Abstract: The present invention provides materials for improving the ignition of gaseous reactants in metal catalyzed oxidation reactions comprising a metal catalyst gauze, preferably, a platinum/rhodium catalyst gauze, having in contact therewith, from 0.25 to 1.5 wt. %, based on the weight of the metal catalyst gauze, of one or more pieces of previously used metal catalyst gauze. Further, methods of making the metal catalyst materials comprise shaping the pieces of previously used metal catalyst gauze and placing them equidistant from each other in contact with or on the surface of the metal catalyst gauze. And methods of using the materials comprise feeding into the reactor a gas mixture of oxygen or air and one or more reactant gases, and igniting the gas mixture at the surface of one or more or all of the pieces of previously used metal catalyst.
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公开(公告)号：US20170334827A1
公开(公告)日：2017-11-23
申请号：US15521440
申请日：2015-10-13
Applicant: Rohm and Haas Company
Inventor： Joy L. Mendoza , Philippe P. Maillot , Mingyu Ye , Stacy W. Hoy, IV
Abstract: Fouling of an MMA process is reduced by acidifying a stream comprising recycled components.
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公开(公告)号：US20150045578A1
公开(公告)日：2015-02-12
申请号：US14382687
申请日：2013-02-11
Applicant: Rohm and Haas Company
Inventor： David A. Flosser , Philippe P. Maillot , Nawal K. Sharma , Alejandro Ceron , Mingyu Ye
IPC: C07C67/02
CPC classification number: C07C67/02 , C07D233/34 , Y02P20/582
Abstract: A transesterification process produces a (meth)acrylate ester product from a mixture comprising an alkyl(meth)acrylate reactant, an alcohol reactant, a catalyst, and a polymerization inhibitor, wherein the water content in the reaction zone at the start of the transesterification step is from 0.2 to 1.1 weight percent, based on the weight of the materials in the reaction zone. The mixture is subjected to reaction conditions sufficient to produce a product (meth)acrylate and a product alcohol, which are different than the reactants.
Abstract translation: 酯交换方法由包含（甲基）丙烯酸烷基酯反应物，醇反应物，催化剂和阻聚剂的混合物产生（甲基）丙烯酸酯产物，其中在酯交换步骤开始时反应区中的水含量 基于反应区中材料的重量，为0.2-1.1重量％。 使混合物经受足以产生与反应物不同的产物（甲基）丙烯酸酯和产物醇的反应条件。
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公开(公告)号：US10143998B2
公开(公告)日：2018-12-04
申请号：US15407278
申请日：2017-01-17
Applicant: Rohm and Haas Company
Inventor： Jon Busick , Philippe P. Maillot , Joy L. Mendoza
IPC: B01J23/00 , B01J23/04 , B01J23/42 , B01J23/46 , B01J23/755 , B01J35/00 , B01J35/06 , F01N3/20 , C01C3/02
Abstract: The present invention provides materials for improving the ignition of gaseous reactants in metal catalyzed oxidation reactions comprising a metal catalyst gauze, preferably, a platinum/rhodium catalyst gauze, having in contact therewith, from 0.25 to 1.5 wt. %, based on the weight of the metal catalyst gauze, of one or more pieces of previously used metal catalyst gauze. Further, methods of making the metal catalyst materials comprise shaping the pieces of previously used metal catalyst gauze and placing them equidistant from each other in contact with or on the surface of the metal catalyst gauze. And methods of using the materials comprise feeding into the reactor a gas mixture of oxygen or air and one or more reactant gases, and igniting the gas mixture at the surface of one or more or all of the pieces of previously used metal catalyst.
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