Process for producing alkali metal hydroxide
    1.
    发明授权
    Process for producing alkali metal hydroxide 失效
    碱金属氢氧化物的制备方法

    公开(公告)号:US4367126A

    公开(公告)日:1983-01-04

    申请号:US253016

    申请日:1981-04-10

    CPC classification number: C25B1/46

    Abstract: An alkali metal hydroxide is produced by electrolyzing an aqueous solution of an alkali metal chloride fed into an anode compartment in a cell having an anode compartment and a cathode compartment formed by partitioning with a cation exchange membrane. A cation exchange membrane of a fluorinated polymer having carboxylic acid groups at a content of 0.9 to 2.0 meq./g. dry resin is used as said cation exchange membrane and a metal or a metal ion is incorporated in said aqueous solution of an alkali metal chloride to form a thin layer made of a metal hydroxide or oxide on the surface of said membrane in the anode compartment.

    Abstract translation: 碱金属氢氧化物是通过在具有通过用阳离子交换膜分隔而形成的阳极室和阴极室的电池中电解供给到阳极室中的碱金属氯化物的水溶液而制造的。 具有含量为0.9〜2.0meq./g的羧酸基团的含氟聚合物的阳离子交换膜。 使用干树脂作为所述阳离子交换膜,并且在所述碱金属氯化物水溶液中引入金属或金属离子,以在所述阳极室中的所述膜的表面上形成由金属氢氧化物或氧化物制成的薄层。

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