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    • 1. 发明申请
    • METHOD FOR SEPARATION OF OLEFIN-ALCOHOL AZEOTROPIC MIXTURE
    • 烯烃 - 醇混合物的分离方法
    • US20100298595A1
    • 2010-11-25
    • US12864475
    • 2009-01-09
    • Yuuki MatsudaKazuyoshi IchiharaTakeomi HirasakaTakuya Ichida
    • Yuuki MatsudaKazuyoshi IchiharaTakeomi HirasakaTakuya Ichida
    • C07C67/10C07C29/78C07C29/80
    • C07C17/392C07C17/38C07C29/78C07C67/11C07C21/18C07C31/12C07C69/653
    • 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.
    • 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。
    • 2. 发明授权
    • Method for separation of olefin-alcohol azeotropic mixture
    • 分离烯烃 - 醇共沸混合物的方法
    • US08143440B2
    • 2012-03-27
    • US12864475
    • 2009-01-09
    • Yuuki MatsudaKazuyoshi IchiharaTakeomi HirasakaTakuya Ichida
    • Yuuki MatsudaKazuyoshi IchiharaTakeomi HirasakaTakuya Ichida
    • C07C67/10C07C31/34
    • C07C17/392C07C17/38C07C29/78C07C67/11C07C21/18C07C31/12C07C69/653
    • 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.
    • 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。
    • 3. 发明授权
    • Process for producing 2-perfluoroalkylethyl alcohol
    • 2-全氟烷基乙醇的制备方法
    • US07572940B2
    • 2009-08-11
    • US12258197
    • 2008-10-24
    • Yuuki MatsudaTakeomi HirasakaTakuya Ichida
    • Yuuki MatsudaTakeomi HirasakaTakuya Ichida
    • C07C29/09C07C29/12
    • C07C29/12C07C303/24C07C305/06C07C31/38
    • 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.
    • 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。
    • 4. 发明申请
    • PROCESS FOR PRODUCING 2-PERFLUOROALKYLETHYL ALCOHOL
    • 生产2-全氟烷基乙醇的方法
    • US20090118552A1
    • 2009-05-07
    • US12258197
    • 2008-10-24
    • Yuuki MATSUDATakeomi HirasakaTakuya Ichida
    • Yuuki MATSUDATakeomi HirasakaTakuya Ichida
    • C07C29/09
    • C07C29/12C07C303/24C07C305/06C07C31/38
    • 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.
    • 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。
    • 5. 发明授权
    • Process for producing fluoroalkyl iodide telomer
    • 制备氟烷基碘调聚物的方法
    • US08232434B2
    • 2012-07-31
    • US12935521
    • 2009-03-30
    • Takeomi HirasakaYoshinori Tanaka
    • Takeomi HirasakaYoshinori Tanaka
    • C07C17/00C07C17/266
    • C07C17/278C07C17/383
    • A novel process for producing a fluoroalkyl iodide telomer is provided, which is able to obtain a fluoroalkyl iodide telomer having a desired chain length, efficiently.A fluoroalkyl iodide represented by the general formula RfI (wherein Rf is a C1-10 fluoroalkyl group) and tetrafluoroethylene are used as a telogen and a taxogen, respectively. These compounds are supplied to a distillation apparatus. In a reaction zone located in an intermediate part of the distillation apparatus, the compounds are subjected to a telomerization reaction in the presence of a metal catalyst with heating to generate a fluoroalkyl iodide telomer represented by the general formula Rf(CF2CF2)nI (wherein Rf is the same as defined above and n is an integer of 1-4). Thereafter, a fraction comprising the fluoroalkyl iodide telomer is separated by distillation.
    • 提供了一种制备氟代烷基碘调聚物的新方法,其能够有效地获得具有所需链长的氟烷基碘调节物。 以通式RfI(其中Rf为C1-10氟代烷基)和四氟乙烯为代表的氟代烷基碘分别用作前体和一种taxogen。 将这些化合物供应到蒸馏装置。 在位于蒸馏装置的中间部分的反应区中,化合物在金属催化剂的存在下加热进行调聚反应,生成由通式Rf(CF 2 CF 2)n I表示的氟代烷基碘调节物(其中Rf 与上述相同,n为1-4的整数)。 此后,通过蒸馏分离包含氟代烷基碘调聚物的馏分。
    • 8. 发明申请
    • PROCESS FOR PRODUCING FLUOROALKYL IODIDE TELOMER
    • 生产氟代碘化物TELOMER的方法
    • US20110028768A1
    • 2011-02-03
    • US12935521
    • 2009-03-30
    • Takeomi HirasakaYoshinori Tanaka
    • Takeomi HirasakaYoshinori Tanaka
    • C07C17/383
    • C07C17/278C07C17/383
    • A novel process for producing a fluoroalkyl iodide telomer is provided, which is able to obtain a fluoroalkyl iodide telomer having a desired chain length, efficiently.A fluoroalkyl iodide represented by the general formula RfI (wherein Rf is a C1-10 fluoroalkyl group) and tetrafluoroethylene are used as a telogen and a taxogen, respectively. These compounds are supplied to a distillation apparatus. In a reaction zone located in an intermediate part of the distillation apparatus, the compounds are subjected to a telomerization reaction in the presence of a metal catalyst with heating to generate a fluoroalkyl iodide telomer represented by the general formula Rf(CF2CF2)nI (wherein Rf is the same as defined above and n is an integer of 1-4). Thereafter, a fraction comprising the fluoroalkyl iodide telomer is separated by distillation.
    • 提供了一种制备氟代烷基碘调聚物的新方法,其能够有效地获得具有所需链长的氟烷基碘调节物。 以通式RfI(其中Rf为C1-10氟代烷基)和四氟乙烯为代表的氟代烷基碘分别用作开环素和紫杉醇。 将这些化合物供应到蒸馏装置。 在位于蒸馏装置的中间部分的反应区中,化合物在金属催化剂的存在下加热进行调聚反应,生成由通式Rf(CF 2 CF 2)n I表示的氟代烷基碘调节物(其中Rf 与上述相同,n为1-4的整数)。 此后,通过蒸馏分离包含氟代烷基碘调聚物的馏分。