Method for lowering chlorate content of alkali metal hydroxides
    2.
    发明授权
    Method for lowering chlorate content of alkali metal hydroxides 失效
    降低碱金属氢氧化物的氯酸盐含量的方法

    公开(公告)号:US4055476A

    公开(公告)日:1977-10-25

    申请号:US760910

    申请日:1977-01-21

    CPC分类号: C25B1/46

    摘要: A method of minimizing chlorate formation when brines are decomposed in diaphragm type electrolytic cells which comprises adding brine containing dissolved nickel values periodically to said cell while continuing operation of the cell. The nickel values can be added whenever the chlorate content of the alkali metal hydroxide increases to again minimize chlorate formation.

    摘要翻译: 一种在隔膜型电解池中分解盐酸盐时使氯酸盐形成最小化的方法,包括在电池继续操作的同时向所述电池周期性地加入含有溶解镍值的盐水。 每当碱金属氢氧化物的氯酸盐含量增加时,可以加入镍值,以再次使氯酸盐形成最小化。

    Modified liquid permeable asbestos diaphragms with improved dimensional
stability
    3.
    发明授权
    Modified liquid permeable asbestos diaphragms with improved dimensional stability 失效
    改进的液体可渗透石棉隔膜具有改进的尺寸稳定性

    公开(公告)号:US4665120A

    公开(公告)日:1987-05-12

    申请号:US806676

    申请日:1985-12-09

    IPC分类号: C25B13/04 C08K3/34

    摘要: A blend of fluorocarbon polymers for incorporation into an asbestos fiber slurry for forming into a diaphragm is disclosed. The blend comprises fluorocarbon polymer fibers and fluorocarbon polymer chunks of certain sizes in certain weight ratios. Also disclosed is a diaphragm comprised of the asbestos and two types of fluorocarbon polymers, as well as a method of making same.

    摘要翻译: 公开了用于结合到用于形成隔膜的石棉纤维浆料中的氟碳聚合物的混合物。 共混物包含一定重量比的一定尺寸的碳氟聚合物纤维和氟碳聚合物块。 还公开了由石棉和两种类型的氟碳聚合物组成的隔膜以及其制造方法。