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公开(公告)号：US07820856B2
公开(公告)日：2010-10-26
申请号：US11815907
申请日：2006-02-08
CPC分类号： C07C51/087 , C07C51/252 , C07C57/04
摘要： Disclosed is a method for enhancing a yield of an α,β-unsaturated carboxylic acid obtained by liquid-phase oxidation reaction of an olefin or an α,β-unsaturated aldehyde. In particular, there is provided a method for producing an α,β-unsaturated carboxylic acid, wherein the method includes the step of carrying out oxidation reaction of an olefin or an α,β-unsaturated aldehyde in a liquid phase to obtain a reaction mixture containing an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid anhydride and the step of bringing the α,β-unsaturated carboxylic acid anhydride into contact with an alcohol or water to obtain an α,β-unsaturated carboxylic acid resulting from decomposition of the α,β-unsaturated carboxylic acid anhydride.
摘要翻译： 公开了通过烯烃或α，β-不饱和醛的液相氧化反应获得的α，bgr-不饱和羧酸的收率的提高方法。 特别是提供一种制备α，β-不饱和羧酸的方法，其中该方法包括在液相中进行烯烃或α，β-不饱和醛的氧化反应的步骤，得到 包含α，β-不饱和羧酸和α，β-不饱和羧酸酐的反应混合物和使α，β-不饱和羧酸酐与醇或水接触以获得α， 由α，β-不饱和羧酸酐分解而产生的β-不饱和羧酸。
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公开(公告)号：US20100228053A1
公开(公告)日：2010-09-09
申请号：US12159318
申请日：2006-12-26
申请人： Tohru Endoh , Kazunori Matake , Shigeho Tanaka , Haruki Sato
发明人： Tohru Endoh , Kazunori Matake , Shigeho Tanaka , Haruki Sato
IPC分类号： C07C51/48
摘要： Disclosed is a method for extracting methacrylic acid, in which an extraction solvent is added to a methacrylic acid aqueous solution for transferring methacrylic acid to the extraction solvent. In this method, a solvent containing t-butyl methacrylate is used as the extraction solvent.
摘要翻译： 公开了一种提取甲基丙烯酸的方法，其中将提取溶剂加入甲基丙烯酸水溶液中以将甲基丙烯酸转移到萃取溶剂中。 在该方法中，使用含有甲基丙烯酸叔丁酯的溶剂作为萃取溶剂。
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公开(公告)号：US20100137638A1
公开(公告)日：2010-06-03
申请号：US12521670
申请日：2007-12-26
IPC分类号： C07C51/16
CPC分类号： B01J27/0576 , B01J21/08 , B01J23/44 , B01J35/023 , B01J35/1019 , B01J35/1042 , B01J37/16 , C07C51/235 , C07C51/252 , C07C57/04
摘要： Disclosed is a method for producing an α, β-unsaturated carboxylic acid from an olefin or an α, β-unsaturated aldehyde, while suppressing dissolution of a silica carrier, which is a carrier for a silica-supported noble metal-containing catalyst, in a water-containing solvent. Specifically disclosed is a method for producing an α, β-unsaturated carboxylic acid through oxidation of an olefin or an α, β-unsaturated aldehyde in a water-containing solvent in the presence of a silica-supported noble metal-containing catalyst in a reactor, in which at least one of silicic acid and ions thereof is supplied into the reactor.
摘要翻译： 公开了一种由烯烃或α，β-不饱和醛生产α，β-不饱和羧酸的方法，同时抑制作为二氧化硅负载的含贵金属催化剂的载体的二氧化硅载体的溶解 ，在含水溶剂中。 具体公开的是通过在含二氧化硅负载的含贵金属的催化剂存在下，在含水溶剂中将烯烃或α，β-不饱和醛氧化制备α，β-不饱和羧酸的方法 其中将至少一种硅酸及其离子供应到反应器中的反应器。
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公开(公告)号：US07897814B2
公开(公告)日：2011-03-01
申请号：US12159318
申请日：2006-12-26
申请人： Tohru Endoh , Kazunori Matake , Shigeho Tanaka , Haruki Sato
发明人： Tohru Endoh , Kazunori Matake , Shigeho Tanaka , Haruki Sato
IPC分类号： C07C51/42
摘要： Disclosed is a method for extracting methacrylic acid, in which an extraction solvent is added to a methacrylic acid aqueous solution for transferring methacrylic acid to the extraction solvent. In this method, a solvent containing t-butyl methacrylate is used as the extraction solvent.
摘要翻译： 公开了一种提取甲基丙烯酸的方法，其中将提取溶剂加入甲基丙烯酸水溶液中以将甲基丙烯酸转移到萃取溶剂中。 在该方法中，使用含有甲基丙烯酸叔丁酯的溶剂作为萃取溶剂。
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公开(公告)号：US08058473B2
公开(公告)日：2011-11-15
申请号：US12521670
申请日：2007-12-26
IPC分类号： C07C51/16
CPC分类号： B01J27/0576 , B01J21/08 , B01J23/44 , B01J35/023 , B01J35/1019 , B01J35/1042 , B01J37/16 , C07C51/235 , C07C51/252 , C07C57/04
摘要： Disclosed is a method for producing an α, β-unsaturated carboxylic acid from an olefin or an α, β-unsaturated aldehyde, while suppressing dissolution of a silica carrier, which is a carrier for a silica-supported noble metal-containing catalyst, in a water-containing solvent. Specifically disclosed is a method for producing an α, β-unsaturated carboxylic acid through oxidation of an olefin or an α, β-unsaturated aldehyde in a water-containing solvent in the presence of a silica-supported noble metal-containing catalyst in a reactor, in which at least one of silicic acid and ions thereof is supplied into the reactor.
摘要翻译： 公开了一种由烯烃或α，β-不饱和醛生产α，β-不饱和羧酸的方法，同时抑制作为二氧化硅负载的含贵金属催化剂的载体的二氧化硅载体的溶解 ，在含水溶剂中。 具体公开的是通过在含二氧化硅负载的含贵金属的催化剂存在下，在含水溶剂中将烯烃或α，β-不饱和醛氧化制备α，β-不饱和羧酸的方法 其中将至少一种硅酸及其离子供应到反应器中的反应器。
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公开(公告)号：US20090299094A1
公开(公告)日：2009-12-03
申请号：US11917422
申请日：2006-06-12
IPC分类号： C07C57/03
CPC分类号： C07C51/252 , C07C57/04
摘要： Disclosed is a method for producing an α,β-unsaturated carboxylic acid by oxidizing an olefin or an α,β-unsaturated aldehyde in a liquid phase in the presence of a noble metal catalyst, which can ensure operational safety at the time of stopping the reaction and prevent deterioration of the noble metal catalyst. The method for producing the α,β-unsaturated carboxylic acid by an oxidation reaction in which the olefin or the α,β-unsaturated aldehyde is oxidized in the liquid phase in the presence of the noble metal catalyst in a reactor, includes a step of stopping the oxidation reaction by supplying an inert gas to the reactor.
摘要翻译： 公开了一种在贵金属催化剂存在下，通过在液相中氧化烯烃或α，β-不饱和醛来生产α，β-不饱和羧酸的方法，其可以确保停止时的操作安全性 反应并防止贵金属催化剂的劣化。 通过氧化反应制备α，β-不饱和羧酸的方法，其中烯烃或α，β-不饱和醛在反应器中在贵金属催化剂存在下在液相中被氧化，包括以下步骤： 通过向反应器供应惰性气体来停止氧化反应。
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公开(公告)号：US20090182170A1
公开(公告)日：2009-07-16
申请号：US11815907
申请日：2006-02-08
IPC分类号： C07C51/00
CPC分类号： C07C51/087 , C07C51/252 , C07C57/04
摘要： Disclosed is a method for enhancing a yield of an α,β-unsaturated carboxylic acid obtained by liquid-phase oxidation reaction of an olefin or an α,β-unsaturated aldehyde. In particular, there is provided a method for producing an α,β-unsaturated carboxylic acid, wherein the method includes the step of carrying out oxidation reaction of an olefin or an α,β-unsaturated aldehyde in a liquid phase to obtain a reaction mixture containing an α,β-unsaturated carboxylic acid and an α,β-unsaturated carboxylic acid anhydride and the step of bringing the α,β-unsaturated carboxylic acid anhydride into contact with an alcohol or water to obtain an α,β-unsaturated carboxylic acid resulting from decomposition of the α,β-unsaturated carboxylic acid anhydride.
摘要翻译： 公开了一种提高通过烯烃或α，β-不饱和醛的液相氧化反应获得的α，β-不饱和羧酸的收率的方法。 特别地，提供了一种制备α，β-不饱和羧酸的方法，其中该方法包括在液相中进行烯烃或α，β-不饱和醛的氧化反应以获得反应混合物的步骤 含有α，β-不饱和羧酸和α，β-不饱和羧酸酐，以及使α，β-不饱和羧酸酐与醇或水接触以获得α，β-不饱和羧酸的步骤 由α，β-不饱和羧酸酐的分解产生。
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