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公开(公告)号：US20050171381A1
公开(公告)日：2005-08-04
申请号：US11088465
申请日：2005-03-24
申请人： Ta-Wei Fu , Steven Swearingen , Takuya Ichida , Shuji Itatani
发明人： Ta-Wei Fu , Steven Swearingen , Takuya Ichida , Shuji Itatani
IPC分类号： C07C51/02 , C07C51/48 , C07C59/135
CPC分类号： C07C51/48 , C07C51/02 , C07C59/135 , C07C53/21
摘要： A fluorocarboxylic acid preparation process continuously carries out acidification reaction treatment and washing treatment, and includes subjecting a fluorocarboxylate-containing aqueous solution to acidification reaction treatment in the presence of sulfuric acid so as to form a sulfate-containing fluorocarboxylic acid phase; and subjecting the fluorocarboxylic acid phase to washing treatment using an aqueous sulfuric acid solution.
摘要翻译： 氟代羧酸制备方法连续进行酸化反应处理和洗涤处理，包括在含硫酸盐存在下使含氟羧酸酯的水溶液进行酸化反应处理以形成含硫酸盐的氟代羧酸相; 并使用硫酸水溶液对氟代羧酸相进行洗涤处理。
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公开(公告)号：US07126016B2
公开(公告)日：2006-10-24
申请号：US11088465
申请日：2005-03-24
申请人： Ta-Wei Fu , Steven H. Swearingen , Takuya Ichida , Shuji Itatani
发明人： Ta-Wei Fu , Steven H. Swearingen , Takuya Ichida , Shuji Itatani
IPC分类号： C07C51/00
CPC分类号： C07C51/48 , C07C51/02 , C07C59/135 , C07C53/21
摘要： A fluorocarboxylic acid preparation process continuously carries out acidification reaction treatment and washing treatment, and includes subjecting a fluorocarboxylate-containing aqueous solution to acidification reaction treatment in the presence of sulfuric acid so as to form a sulfate-containing fluorocarboxylic acid phase; and subjecting the fluorocarboxylic acid phase to washing treatment using an aqueous sulfuric acid solution.
摘要翻译： 氟代羧酸制备方法连续进行酸化反应处理和洗涤处理，包括在含硫酸盐存在下使含氟羧酸酯的水溶液进行酸化反应处理以形成含硫酸盐的氟代羧酸相; 并使用硫酸水溶液对氟代羧酸相进行洗涤处理。
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公开(公告)号：US20050165254A1
公开(公告)日：2005-07-28
申请号：US11088370
申请日：2005-03-24
申请人： Ta-Wei Fu , Steven Swearingen , Takuya Ichida , Shigeyuki Yoshii
发明人： Ta-Wei Fu , Steven Swearingen , Takuya Ichida , Shigeyuki Yoshii
IPC分类号： C07C51/04 , C07C51/48 , C07C59/135
CPC分类号： C07C51/04 , C07C51/48 , C07C59/135 , C07C53/21
摘要： A fluorocarboxylic acid preparation process which includes hydrolyzing fluorocarboxylic acid fluoride in the presence of an aqueous sulfuric acid solution to form a reaction product containing a fluorocarboxylic acid and hydrogen fluoride (present as hydrofluoric acid); and removing at least some of the hydrogen fluoride from the reaction product by washing the reaction production with aqueous sulfuric acid solution. The hydrolyzing and washing are carried out at a temperature at which the fluorocarboxylic acid is a liquid.
摘要翻译： 一种氟代羧酸制备方法，其包括在硫酸水溶液存在下水解氟代羧酸，形成含有氟代羧酸和氟化氢（以氢氟酸形式存在）的反应产物; 并通过用硫酸水溶液洗涤反应生成，从反应产物中除去至少一些氟化氢。 水解和洗涤在氟代羧酸是液体的温度下进行。
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公开(公告)号：US07253315B2
公开(公告)日：2007-08-07
申请号：US11088370
申请日：2005-03-24
CPC分类号： C07C51/04 , C07C51/48 , C07C59/135 , C07C53/21
摘要： A fluorocarboxylic acid preparation process which includes hydrolyzing fluorocarboxylic acid fluoride in the presence of an aqueous sulfuric acid solution to form a reaction product containing a fluorocarboxylic acid and hydrogen fluoride (present as hydrofluoric acid); and removing at least some of the hydrogen fluoride from the reaction product by washing the reaction production with aqueous sulfuric acid solution. The hydrolyzing and washing are carried out at a temperature at which the fluorocarboxylic acid is a liquid.
摘要翻译： 一种氟代羧酸制备方法，其包括在硫酸水溶液存在下水解氟代羧酸，形成含有氟代羧酸和氟化氢（以氢氟酸形式存在）的反应产物; 并通过用硫酸水溶液洗涤反应生成，从反应产物中除去至少一些氟化氢。 水解和洗涤在氟代羧酸是液体的温度下进行。
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公开(公告)号：US20110124915A1
公开(公告)日：2011-05-26
申请号：US13055095
申请日：2009-09-04
申请人： Shuji Itatani , Takuya Ichida , Noriaki Shibata , Kaori Ohno
发明人： Shuji Itatani , Takuya Ichida , Noriaki Shibata , Kaori Ohno
IPC分类号： C07C51/48
CPC分类号： C07C51/48 , C07C59/135 , C07C53/21
摘要： A process for preparing a fluorocarboxylic acid, which includes a dehydration step of removing from a mixture containing a fluorocarboxylic acid and water at least a part of the water to obtain a dehydrated fluorocarboxylic acid solution, and a purification step of purifying the dehydrated fluorocarboxylic acid solution.
摘要翻译： 一种制备氟代羧酸的方法，其包括从含有氟代羧酸的水和至少一部分水的混合物中除去脱水的氟代羧酸溶液的脱水步骤和纯化脱水的氟代羧酸溶液的纯化步骤 。
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公开(公告)号：US08624060B2
公开(公告)日：2014-01-07
申请号：US13055095
申请日：2009-09-04
申请人： Shuji Itatani , Takuya Ichida , Noriaki Shibata , Kaori Ohno
发明人： Shuji Itatani , Takuya Ichida , Noriaki Shibata , Kaori Ohno
IPC分类号： C07C51/48 , C07C53/21 , C07C59/135
CPC分类号： C07C51/48 , C07C59/135 , C07C53/21
摘要： A process for preparing a fluorocarboxylic acid, which includes a dehydration step of removing from a mixture containing a fluorocarboxylic acid and water at least a part of the water to obtain a dehydrated fluorocarboxylic acid solution, and a purification step of purifying the dehydrated fluorocarboxylic acid solution.
摘要翻译： 一种制备氟代羧酸的方法，其包括从含有氟代羧酸的水和至少一部分水的混合物中除去脱水的氟代羧酸溶液的脱水步骤和纯化脱水的氟代羧酸溶液的纯化步骤 。
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公开(公告)号：US07317071B2
公开(公告)日：2008-01-08
申请号：US10506008
申请日：2003-02-27
申请人： Takuya Ichida , Yukio Homoto
发明人： Takuya Ichida , Yukio Homoto
IPC分类号： C08F6/00
CPC分类号： C07C17/367 , C07C21/185 , C07C21/18 , C07C23/06
摘要： Processes for producing a fluoromonomer from a fluoropolymer, among which one that can be carried out more simply is a process wherein thermal decomposition of a fluoropolymer is preformed by means of a rotary kiln (5) so as to produce a fluoromonomer, the process comprising feeding a fluoropolymer and steam (3) into a rotary kiln and heating the fluoropolymer.
摘要翻译： 从氟聚合物制造含氟单体的方法，其中可以更简单地进行的方法是通过回转窑（5）预先形成含氟聚合物的热分解以制备含氟单体的方法，该方法包括进料 将含氟聚合物和蒸汽（3）加入回转窑中并加热含氟聚合物。
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公开(公告)号：US08143440B2
公开(公告)日：2012-03-27
申请号：US12864475
申请日：2009-01-09
CPC分类号： C07C17/392 , C07C17/38 , C07C29/78 , C07C67/11 , C07C21/18 , C07C31/12 , C07C69/653
摘要： There is provided a method for separating and collecting at least alcohol with a high purity from an azeotropic mixture of olefin and alcohol.The method conducts the following steps: an azeotropic mixture crystallization step of subjecting an azeotropic mixture of alcohol and olefin represented by the formula: RfCH═CH2 [wherein Rf represents a linear perfluoroalkyl group having 1 to 10 carbon atoms] to a crystallization procedure to separate the mixture into an olefin portion having a higher olefin concentration than that of the original azeotropic mixture and an alcohol portion having a higher alcohol concentration than that of the original azeotropic mixture; and an alcohol purification step of subjecting the separated alcohol portion to either a crystallization procedure or a distillation procedure to separate the alcohol portion into a low-alcohol portion having a lower alcohol concentration than that of the original alcohol portion and a high-alcohol portion having a higher alcohol concentration than that of the original alcohol portion, and thereby collecting alcohol as the high-alcohol portion.
摘要翻译： 提供了从烯烃和醇的共沸混合物中分离和收集至少具有高纯度的醇的方法。 该方法进行以下步骤：共沸混合物结晶步骤，其对由式R f CH = CH 2 [其中R f表示具有1至10个碳原子的直链全氟烷基]表示的醇和烯烃共沸混合物进行结晶步骤以分离 该混合物成为具有比原始共沸混合物更高的烯烃浓度的烯烃部分和具有比原始共沸混合物的醇浓度高的醇部分; 以及醇分离步骤，使分离的醇部分进行结晶过程或蒸馏步骤，以将醇部分分离成具有比原始醇部分低的醇浓度的低醇部分，以及具有 比原始醇部分高的醇浓度，从而收集作为高醇部分的醇。
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公开(公告)号：US20100298595A1
公开(公告)日：2010-11-25
申请号：US12864475
申请日：2009-01-09
CPC分类号： C07C17/392 , C07C17/38 , C07C29/78 , C07C67/11 , C07C21/18 , C07C31/12 , C07C69/653
摘要： There is provided a method for separating and collecting at least alcohol with a high purity from an azeotropic mixture of olefin and alcohol.The method conducts the following steps: an azeotropic mixture crystallization step of subjecting an azeotropic mixture of alcohol and olefin represented by the formula: RfCH═CH2 [wherein Rf represents a linear perfluoroalkyl group having 1 to 10 carbon atoms] to a crystallization procedure to separate the mixture into an olefin portion having a higher olefin concentration than that of the original azeotropic mixture and an alcohol portion having a higher alcohol concentration than that of the original azeotropic mixture; and an alcohol purification step of subjecting the separated alcohol portion to either a crystallization procedure or a distillation procedure to separate the alcohol portion into a low-alcohol portion having a lower alcohol concentration than that of the original alcohol portion and a high-alcohol portion having a higher alcohol concentration than that of the original alcohol portion, and thereby collecting alcohol as the high-alcohol portion.
摘要翻译： 提供了从烯烃和醇的共沸混合物中分离和收集至少具有高纯度的醇的方法。 该方法进行以下步骤：共沸混合物结晶步骤，其对由式R f CH = CH 2 [其中R f表示具有1至10个碳原子的直链全氟烷基]表示的醇和烯烃共沸混合物进行结晶步骤以分离 该混合物成为具有比原始共沸混合物更高的烯烃浓度的烯烃部分和具有比原始共沸混合物的醇浓度高的醇部分; 以及醇分离步骤，使分离的醇部分进行结晶过程或蒸馏步骤，以将醇部分分离成具有比原始醇部分低的醇浓度的低醇部分，以及具有 比原始醇部分高的醇浓度，从而收集作为高醇部分的醇。
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公开(公告)号：US07572940B2
公开(公告)日：2009-08-11
申请号：US12258197
申请日：2008-10-24
申请人： Yuuki Matsuda , Takeomi Hirasaka , Takuya Ichida
发明人： Yuuki Matsuda , Takeomi Hirasaka , Takuya Ichida
CPC分类号： C07C29/12 , C07C303/24 , C07C305/06 , C07C31/38
摘要： In a first sulfation step, 2-perfluoroalkylethyl iodide is brought into contact with fuming sulfuric acid to obtain a reaction mixture comprising 2-perfluoroalkylethyl sulfate and bis(2-perfluoroalkylethyl)sulfate. Then, in a first hydrolysis step, 2-perfluoroalkylethyl sulfate produced in the first sulfation step is hydrolyzed to obtain a reaction mixture comprising 2-perfluoroalkylethyl alcohol. In a second sulfation step, bis(2-perfluoroalkylethyl)sulfate produced in the first sulfation step is brought into contact with fuming sulfuric acid to obtain a reaction mixture comprising 2-perfluoroalkylethyl sulfate. Then, in a second hydrolysis step, 2-perfluoroalkylethyl sulfate produced in the second sulfation step is hydrolyzed to obtain a reaction mixture comprising 2-perfluoroalkylethyl alcohol. According to such procedures, 2-perfluoroalkylethyl alcohol can be obtained in a high yield.
摘要翻译： 在第一次硫酸化步骤中，使2-全氟烷基乙基碘与发烟硫酸接触，得到包含2-全氟烷基乙基硫酸酯和双（2-全氟烷基乙基）硫酸酯的反应混合物。 然后，在第一水解步骤中，将在第一硫酸化步骤中生产的2-全氟烷基乙基硫酸酯水解，得到包含2-全氟烷基乙醇的反应混合物。 在第二次硫酸化步骤中，将在第一硫酸化步骤中生产的双（2-全氟烷基乙基）硫酸盐与发烟硫酸接触，得到包含2-全氟烷基乙基硫酸酯的反应混合物。 然后，在第二水解步骤中，将在第二硫酸化步骤中生产的2-全氟烷基乙基硫酸酯水解，得到包含2-全氟烷基乙醇的反应混合物。 根据这样的方法，可以高产率获得2-全氟烷基乙醇。
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