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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：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：US07709690B2
公开(公告)日：2010-05-04
申请号：US11721742
申请日：2005-12-15
申请人： Tohru Endoh , Shigeho Tanaka , Haruki Sato
发明人： Tohru Endoh , Shigeho Tanaka , Haruki Sato
IPC分类号： C07C29/04
摘要： Disclosed is a method for producing tertiary butyl alcohol through hydration reaction of isobutylene and water in the presence of a cation exchange resin by using a reactor having at least two reactor vessels provided in series. The method is characterized in that a fluid in a reactor vessel at the most downstream side forms a two-liquid phase and the reaction temperature of the reactor vessel is kept at 70° C. or lower, and a fluid in at least one reactor vessel other than the one at the most downstream side forms a homogeneous phase.
摘要翻译： 公开了通过使用具有串联提供的至少两个反应器容器的反应器，在阳离子交换树脂存在下，通过异丁烯和水的水合反应生产叔丁醇的方法。 该方法的特征在于，最下游侧的反应器容器中的流体形成双液相，反应容器的反应温度保持在70℃以下，在至少一个反应器容器 除了最下游侧的那一个形成均相。
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公开(公告)号：US07803964B2
公开(公告)日：2010-09-28
申请号：US11815664
申请日：2006-02-06
申请人： Shigeho Tanaka , Tohru Endoh , Haruki Sato , Toshihiro Sato , Kazutaka Inoue
发明人： Shigeho Tanaka , Tohru Endoh , Haruki Sato , Toshihiro Sato , Kazutaka Inoue
IPC分类号： C07C69/52
摘要： Disclosed is a method for synthesizing t-butyl (meth)acrylate at low cost. Specifically, disclosed is a method for synthesizing a carboxylic acid ester by performing an addition reaction between isobutylene and (meth)acrylic acid in the presence of an acidic catalyst. This method includes the steps of: (A) performing a dehydration decomposition reaction of t-butyl alcohol in the presence of a first acidic catalyst; (B) obtaining crude isobutylene gas by separating at least water from a produced gas obtained in the step A; (C) absorbing the crude isobutylene gas in an absorption solvent containing (meth)acrylic acid; and (D) producing t-butyl (meth)acrylate by performing the addition reaction by bringing the absorption solvent which has absorbed the crude isobutylene gas into contact with a second acidic catalyst.
摘要翻译： 公开了以低成本合成（甲基）丙烯酸叔丁酯的方法。 具体地，公开了通过在酸性催化剂的存在下进行异丁烯和（甲基）丙烯酸之间的加成反应来合成羧酸酯的方法。 该方法包括以下步骤：（A）在第一酸性催化剂的存在下进行叔丁醇的脱水分解反应; （B）通过从步骤A中获得的产生的气体中至少分离出水来获得粗异丁烯气体; （C）在含有（甲基）丙烯酸的吸收溶剂中吸收粗异丁烯气体; 和（D）通过使吸收了粗异丁烯气体的吸收溶剂与第二酸性催化剂接触进行加成反应来生产（甲基）丙烯酸叔丁酯。
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公开(公告)号：US20090253945A1
公开(公告)日：2009-10-08
申请号：US11721742
申请日：2005-12-15
申请人： Tohru Endoh , Shigeho Tanaka , Haruki Sato
发明人： Tohru Endoh , Shigeho Tanaka , Haruki Sato
IPC分类号： C07C29/04
摘要： Disclosed is a method for producing tertiary butyl alcohol through hydration reaction of isobutylene and water in the presence of a cation exchange resin by using a reactor having at least two reactor vessels provided in series. The method is characterized in that a fluid in a reactor vessel at the most downstream side forms a two-liquid phase and the reaction temperature of the reactor vessel is kept at 70° C. or lower, and a fluid in at least one reactor vessel other than the one at the most downstream side forms a homogeneous phase.
摘要翻译： 公开了通过使用具有串联提供的至少两个反应器容器的反应器，在阳离子交换树脂存在下，通过异丁烯和水的水合反应生产叔丁醇的方法。 该方法的特征在于，最下游侧的反应器容器中的流体形成双液相，反应容器的反应温度保持在70℃以下，在至少一个反应器容器 除了最下游侧的那一个形成均相。
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公开(公告)号：US20090012327A1
公开(公告)日：2009-01-08
申请号：US11815664
申请日：2006-02-06
申请人： Shigeho Tanaka , Tohru Endoh , Haruki Sato , Toshihiro Sato , Kazutaka Inoue
发明人： Shigeho Tanaka , Tohru Endoh , Haruki Sato , Toshihiro Sato , Kazutaka Inoue
IPC分类号： C07C57/18
摘要： Disclosed is a method for synthesizing t-butyl (meth)acrylate at low cost. Specifically, disclosed is a method for synthesizing a carboxylic acid ester by performing an addition reaction between isobutylene and (meth)acrylic acid in the presence of an acidic catalyst. This method includes the steps of: (A) performing a dehydration decomposition reaction of t-butyl alcohol in the presence of a first acidic catalyst; (B) obtaining crude isobutylene gas by separating at least water from a produced gas obtained in the step A; (C) absorbing the crude isobutylene gas in an absorption solvent containing (meth)acrylic acid; and (D) producing t-butyl (meth)acrylate by performing the addition reaction by bringing the absorption solvent which has absorbed the crude isobutylene gas into contact with a second acidic catalyst.
摘要翻译： 公开了以低成本合成（甲基）丙烯酸叔丁酯的方法。 具体地，公开了通过在酸性催化剂的存在下进行异丁烯和（甲基）丙烯酸之间的加成反应来合成羧酸酯的方法。 该方法包括以下步骤：（A）在第一酸性催化剂的存在下进行叔丁醇的脱水分解反应; （B）通过从步骤A中获得的产生的气体中至少分离出水来获得粗异丁烯气体; （C）在含有（甲基）丙烯酸的吸收溶剂中吸收粗异丁烯气体; 和（D）通过使吸收了粗异丁烯气体的吸收溶剂与第二酸性催化剂接触进行加成反应来生产（甲基）丙烯酸叔丁酯。
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公开(公告)号：US07411086B2
公开(公告)日：2008-08-12
申请号：US10558193
申请日：2004-05-27
申请人： Shuhei Otsuka , Akira Ogawa , Tohru Endoh , Shingo Tanaka
发明人： Shuhei Otsuka , Akira Ogawa , Tohru Endoh , Shingo Tanaka
IPC分类号： C07C69/52
CPC分类号： C07C213/06 , C07C219/08
摘要： The present invention is to provide a method of producing an N-alkylaminoalkyl (meth)acrylate containing a small amount of low boiling components, especially, containing a small amount of raw components, without any complicated operations or special apparatuses. The method of producing an N-alkylaminoalkyl (meth)acrylate comprising the steps of: (A) performing the reaction between the (meth)acrylic acid ester and the N-alkylaminoalkyl alcohol in a presence of a catalyst to obtain a reaction solution containing the N-alkylaminoalkyl (meth)acrylate; (B) distilling out components which have lower boiling points than the N-alkylaminoalkyl (meth)acrylate from the reaction solution obtained by the step (A); and (C) distilling the N-alkylaminoalkyl (meth)acrylate; and further comprising the step of: (D) adjusting water concentration at a range from 0.01 to 1 wt %. in the reaction solution which is located after the step (A) and before the step (C).
摘要翻译： 本发明提供一种含有少量低沸点成分的（甲基）丙烯酸N-烷基氨基烷基酯（特别是含有少量原料成分）的方法，无需任何复杂的操作或特殊设备。 （甲基）丙烯酸N-烷基氨基烷基酯的制造方法，其特征在于：（A）在催化剂存在下进行（甲基）丙烯酸酯与N-烷基氨基烷基醇的反应，得到含有 （甲基）丙烯酸N-烷基氨基烷基酯; （B）从步骤（A）获得的反应溶液中蒸馏沸点低于（甲基）丙烯酸N-烷基氨基烷基酯的组分; 和（C）蒸馏（甲基）丙烯酸N-烷基氨基烷基酯; 并且还包括以下步骤：（D）将水浓度调节在0.01至1重量％的范围内。 在步骤（A）之后和步骤（C）之前的反应溶液中。
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公开(公告)号：US20060287550A1
公开(公告)日：2006-12-21
申请号：US10558193
申请日：2004-05-27
申请人： Shuhei Otsuka , Akira Ogawa , Tohru Endoh , Shingo Tanaka
发明人： Shuhei Otsuka , Akira Ogawa , Tohru Endoh , Shingo Tanaka
IPC分类号： C07C229/02
CPC分类号： C07C213/06 , C07C219/08
摘要： The present invention is to provide a method of producing an N-alkylaminoalkyl(meth)acrylate containing a small amount of low boiling components, especially, containing a small amount of raw components, without any complicated operations or special apparatuses. The method of producing an N-alkylaminoalkyl(meth)acrylate comprising the steps of: (A) performing the reaction between the (meth)acrylic acid ester and the N-alkylaminoalkyl alcohol in a presence of a catalyst to obtain a reaction solution containing the N-alkylaminoalkyl(meth)acrylate; (B) distilling out components which have lower boiling points than the N-alkylaminoalkyl(meth)acrylate from the reaction solution obtained by the step (A); and (C) distilling the N-alkylaminoalkyl (meth)acrylate; and further comprising the step of: (D) adjusting water concentration at a range from 0.01 to 1 wt %. in the reaction solution which is located after the step (A) and before the step (C).
摘要翻译： 本发明提供一种含有少量低沸点成分的（甲基）丙烯酸N-烷基氨基烷基酯（特别是含有少量原料成分）的方法，无需任何复杂的操作或特殊设备。 （甲基）丙烯酸N-烷基氨基烷基酯的制造方法，其特征在于：（A）在催化剂存在下进行（甲基）丙烯酸酯与N-烷基氨基烷基醇的反应，得到含有 （甲基）丙烯酸N-烷基氨基烷基酯; （B）从步骤（A）获得的反应溶液中蒸馏沸点低于（甲基）丙烯酸N-烷基氨基烷基酯的组分; 和（C）蒸馏（甲基）丙烯酸N-烷基氨基烷基酯; 并且还包括以下步骤：（D）将水浓度调节在0.01至1重量％的范围内。 在步骤（A）之后和步骤（C）之前的反应溶液中。
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