Manufacture of hydrofluoroalkanesulfonic acids
    7.
    发明申请
    Manufacture of hydrofluoroalkanesulfonic acids 有权
    制造氢氟烷基磺酸

    公开(公告)号:US20060276671A1

    公开(公告)日:2006-12-07

    申请号:US11447713

    申请日:2006-06-06

    CPC classification number: C07C303/32 C07C303/20 C07C309/06

    Abstract: A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.

    Abstract translation: 一种制备氢氟烷基磺酸的方法,所述氢氟烷基磺酸与至少一个与键合在磺酸基上的碳原子相邻的碳原子键合的氢包括:使氟烯烃与亚硫酸盐在调节至约pH4至pH12的水溶液中接触; 从溶液中除去水以形成固体; 用发烟硫酸直接处理固体; 并从其中蒸馏出氢氟烷基磺酸。 还描述了制备高纯度的氢氟烷基磺酸钾的方法。

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