POTASSIUM PERFLUOROALKANESULFONATE AND METHOD FOR PRODUCING THE SAME
    1.
    发明申请
    POTASSIUM PERFLUOROALKANESULFONATE AND METHOD FOR PRODUCING THE SAME 失效
    全氟卡波酸钾及其生产方法

    公开(公告)号:US20090143613A1

    公开(公告)日:2009-06-04

    申请号:US12063132

    申请日:2006-09-29

    IPC分类号: C07C309/06

    CPC分类号: C25B3/08 C07C309/06

    摘要: This method for producing a potassium perfluoroalkanesulfonate includes an electrochemical fluorination step in which an alkanesulfonyl halide compound is subjected to electrochemical fluorination in anhydrous hydrogen fluoride, thereby to generate a production gas containing perfluoroalkanesulfonyl fluoride as the main component. In addition, for example, the methods may include a gas absorption step in which the production gas is reacted with an aqueous solution of potassium hydroxide, thereby to generate a gas absorbed solution containing potassium perfluoroalkanesulfonate, a purification step in which impurities such as potassium fluoride, potassium hydroxide, and potassium sulfate, are removed, and a concentration and collection step in which the aqueous solution from which the impurities are removed is concentrated and dried. In the electrochemical fluorination, for example, it is possible that the proton concentration in the reaction solution is maintained in the range of 150 to 1,500 ppm to suppress the formation of byproducts.

    摘要翻译: 这种生产全氟烷基磺酸钾的方法包括电化学氟化步骤,其中烷基磺酰卤化合物在无水氟化氢中进行电化学氟化,从而产生以全氟烷基磺酰氟为主要成分的生产气体。 此外,例如,可以举出气体吸收工序,其中生产气体与氢氧化钾水溶液反应,从而产生含有全氟烷基磺酸钾的气体吸收溶液,纯化步骤,其中杂质如氟化钾 ,氢氧化钾和硫酸钾,并且浓缩和干燥除去杂质的水溶液的浓缩和收集步骤。 在电化学氟化中,例如,反应溶液中的质子浓度可能保持在150〜1500ppm的范围内,以抑制副产物的形成。

    Potassium perfluoroalkanesulfonate and method for producing the same
    2.
    发明授权
    Potassium perfluoroalkanesulfonate and method for producing the same 失效
    全氟烷基磺酸钾及其制备方法

    公开(公告)号:US08026391B2

    公开(公告)日:2011-09-27

    申请号:US12063132

    申请日:2006-09-29

    IPC分类号: C07C309/06

    CPC分类号: C25B3/08 C07C309/06

    摘要: This method for producing a potassium perfluoroalkanesulfonate includes an electrochemical fluorination step in which an alkanesulfonyl halide compound is subjected to electrochemical fluorination in anhydrous hydrogen fluoride, thereby to generate a production gas containing perfluoroalkanesulfonyl fluoride as the main component. In addition, for example, the methods may include a gas absorption step in which the production gas is reacted with an aqueous solution of potassium hydroxide, thereby to generate a gas absorbed solution containing potassium perfluoroalkanesulfonate, a purification step in which impurities such as potassium fluoride, potassium hydroxide, and potassium sulfate, are removed, and a concentration and collection step in which the aqueous solution from which the impurities are removed is concentrated and dried. In the electrochemical fluorination, for example, it is possible that the proton concentration in the reaction solution is maintained in the range of 150 to 1,500 ppm to suppress the formation of byproducts.

    摘要翻译: 这种生产全氟烷基磺酸钾的方法包括电化学氟化步骤,其中烷基磺酰卤化合物在无水氟化氢中进行电化学氟化,从而产生以全氟烷基磺酰氟为主要成分的生产气体。 此外,例如,可以举出气体吸收工序,其中生产气体与氢氧化钾水溶液反应,从而产生含有全氟烷基磺酸钾的气体吸收溶液,纯化步骤,其中杂质如氟化钾 ,氢氧化钾和硫酸钾,并且浓缩和干燥除去杂质的水溶液的浓缩和收集步骤。 在电化学氟化中,例如,反应溶液中的质子浓度可能保持在150〜1500ppm的范围内,以抑制副产物的形成。

    PROCESS FOR PRODUCING PERFLUOROBUTANESULFONIC ACID SALT
    3.
    发明申请
    PROCESS FOR PRODUCING PERFLUOROBUTANESULFONIC ACID SALT 审中-公开
    生产全氟磺酸钠盐的方法

    公开(公告)号:US20120302787A1

    公开(公告)日:2012-11-29

    申请号:US13575412

    申请日:2011-01-27

    IPC分类号: C25B3/08 C07C309/06

    摘要: A process for producing a perfluorobutanesulfonic acid salt (PFBS salt) is provided. By the process, the yield is improved and PFOS salt content is reduced. Electrochemical fluorination is conducted in a reaction solution comprising anhydrous hydrogen fluoride to generate perfluorobutanesulfonyl fluoride, and the fluoride is hydrolyzed to produce a perfluorobutanesulfonic acid salt. The process for producing a perfluorobutanesulfonic acid salt includes: a step in which liquid phase components generated in the electrochemical fluorination cell are withdrawn and a first a perfluorobutanesulfonic acid salt fraction is prepared therefrom; and a step in which gaseous phase components discharged from the electrochemical fluorination cell are collected and a second perfluorobutanesulfonic acid salt fraction is prepared therefrom. The reaction solution in the electrochemical fluorination cell is regulated so as to have a perfluorooctanesulfonyl fluoride content of 500 ppm or lower by withdrawing the liquid phase components from the electrochemical fluorination cell.

    摘要翻译: 提供了一种制备全氟丁烷磺酸盐(PFBS盐)的方法。 通过该过程,产率提高,PFOS盐含量降低。 电化学氟化在含有无水氟化氢的反应溶液中进行,生成全氟丁烷磺酰氟,氟化物水解生成全氟丁烷磺酸盐。 制备全氟丁烷磺酸盐的方法包括:取出在电化学氟化池中产生的液相成分并从中制备全氟丁烷磺酸盐部分的步骤; 收集从电化学氟化池排出的气相成分并从其中制备第二全氟丁烷磺酸盐部分的工序。 通过从电化学氟化电池取出液相成分,调节电化学氟化电池中的反应溶液以使全氟辛基磺酰氟含量为500ppm以下。

    PROCESS FOR PRODUCING PERFLUOROALKYLSULFONIC ACID SALT
    4.
    发明申请
    PROCESS FOR PRODUCING PERFLUOROALKYLSULFONIC ACID SALT 审中-公开
    生产全氟烷基磺酸盐的方法

    公开(公告)号:US20110269990A1

    公开(公告)日:2011-11-03

    申请号:US13138046

    申请日:2010-01-05

    IPC分类号: C07C303/32 C07C303/44

    摘要: In this method for producing a perfluoroalkylsulfonic acid salt, there is provided a method for producing a perfluoroalkylsulfonic acid salt with a low fluorine content, which is a simple method to achieve a high yield,wherein a solution is formed by adding, to at least one compound selected from perfluoroalkylsulfonic acid salts represented by a general formula RfSO3.M (wherein Rf represents a perfluoroalkyl group of 1 to 4 carbon atoms, and M represents Li, Na or K), an organic solvent which is capable of dissolving the compound, and an adsorbent having a capacity to adsorb fluorine ions is added to the solution.

    摘要翻译: 在该全氟烷基磺酸盐的制造方法中,提供了氟含量低的全氟烷基磺酸盐的制造方法,其是获得高产率的简单方法,其中通过将至少一种 选自由通式RfSO3M(其中Rf表示1至4个碳原子的全氟烷基,M表示Li,Na或K)的全氟烷基磺酸盐的化合物,能够溶解化合物的有机溶剂,以及 将具有吸附氟离子能力的吸附剂加入到溶液中。

    METHOD FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE
    6.
    发明申请
    METHOD FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE 失效
    生产三氟甲磺酸酐的方法

    公开(公告)号:US20090118543A1

    公开(公告)日:2009-05-07

    申请号:US12064113

    申请日:2006-10-24

    IPC分类号: C07C303/00

    CPC分类号: C07C303/00 C07C309/00

    摘要: This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide.

    摘要翻译: 这种三氟甲磺酸酐与五氧化二磷反应生成三氟甲磺酸酐的方法,其中通过使用过量的三氟甲磺酸相对于磷来防止作为副产物产生的由多磷酸引起的反应溶液的硬化 五氧化物。

    Method for producing trifluoromethanesulfonic anhydride
    8.
    发明授权
    Method for producing trifluoromethanesulfonic anhydride 失效
    制备三氟甲磺酸酐的方法

    公开(公告)号:US07741518B2

    公开(公告)日:2010-06-22

    申请号:US12064113

    申请日:2006-10-24

    IPC分类号: C07C303/00

    CPC分类号: C07C303/00 C07C309/00

    摘要: This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide.

    摘要翻译: 这种三氟甲磺酸酐与五氧化二磷反应生成三氟甲磺酸酐的方法,其中通过使用过量的三氟甲磺酸相对于磷来防止作为副产物产生的由多磷酸引起的反应溶液的硬化 五氧化物。