Bipolar system electrolytic cell
    11.
    发明授权
    Bipolar system electrolytic cell 失效
    双极体系电解槽

    公开(公告)号:US4111779A

    公开(公告)日:1978-09-05

    申请号:US790924

    申请日:1977-04-26

    IPC分类号: C25B9/20 C25B9/00

    CPC分类号: C25B9/206

    摘要: A bipolar system electrolytic cell having a partition wall made of explosion-bonded titanium plate and iron plate which is electrically connected to anode of titanium substrate at its titanium side and to cathode of iron at its iron side, space is preferably given between anode and the partition wall and also between cathode and the partition wall. An assembly having a number of such unit cells arranged in series is useful for electrolysis of sodium chloride which can be performed under a low voltage per unit cell.

    Process for the production of high purity aqueous alkali hydroxide
solution
    15.
    发明授权
    Process for the production of high purity aqueous alkali hydroxide solution 失效
    生产高纯度碱性氢氧化碱水溶液的方法

    公开(公告)号:US4276130A

    公开(公告)日:1981-06-30

    申请号:US42304

    申请日:1979-05-25

    IPC分类号: C25B1/46 C25B1/16 C25B1/26

    CPC分类号: C25B1/46

    摘要: High purity aqueous alkali hydroxide solutions containing predetermined, low concentrations of alkali metal halide are obtained in the anode compartment of an electrolytic cell using a cationic ion exchange membrane by conducting the electrolysis under controlled conditions such that the difference between the concentration of alkali metal halide in the anode compartment and the limiting concentration of alkali metal halide in the anode compartment is within a defined range.

    摘要翻译: 在电解槽的阳极室中,使用阳离子交换膜,在受控条件下进行电解,得到含有预先确定的低浓度碱金属卤化物的高纯度碱金属氢氧化物溶液,使碱金属卤化物浓度之间的差异 阳极室和阳极室中碱金属卤化物的极限浓度在规定的范围内。

    Process for electrolysis of sodium chloride
    19.
    发明授权
    Process for electrolysis of sodium chloride 失效
    电解氯化钠的工艺

    公开(公告)号:US4683041A

    公开(公告)日:1987-07-28

    申请号:US397785

    申请日:1982-07-13

    申请人: Maomi Seko

    发明人: Maomi Seko

    摘要: A process for the electrolysis of aqueous solutions of sodium chloride in an electrolytic cell separated into an anode chamber and a cathode chamber by a cation exchange membrane consisting essentially of perfluorocarbon polymer having pendant carboxylic acid and sulfonic acid groups, said membrane having an ion exchange capacity of sulfonic and carboxylic acid groups of from 0.5 to 4.0 milliequivalents per gram of dry resin, the ion exchange capacity of the carboxylic acid groups being from 0.05 to 1.5 milliequivalents per gram of dry resin.

    摘要翻译: 一种在电解槽中电解氯化钠水溶液的方法,该电解池中分离成阳离子室和阴极室的阳离子交换膜主要由具有羧酸和磺酸侧基的全氟碳聚合物组成,所述膜具有离子交换容量 的磺酸和羧酸基团为0.5至4.0毫当量/克干树脂,羧酸基团的离子交换容量为每克干树脂0.05至1.5毫当量。

    Process for electrolysis of sodium chloride
    20.
    发明授权
    Process for electrolysis of sodium chloride 失效
    电解氯化钠的工艺

    公开(公告)号:US4683040A

    公开(公告)日:1987-07-28

    申请号:US397783

    申请日:1982-07-13

    申请人: Maomi Seko

    发明人: Maomi Seko

    摘要: A process for the electrolysis of aqueous solutions of sodium chloride in an electrolytic cell separated into an anode chamber and a cathode chamber by a perfluorocarbon copolymer cation exchange membrane having pendant carboxylic acid groups. The process is characterized by reducing the calcium content of the aqueous sodium chloride solution charged into the anode chamber to less than 1 p.p.m. High current efficiencies are obtained utilizing membranes having an ion exchange capacity of carboxylic acid groups of from 0.5 to 2.1 milliequivalents per gram of dry resin.

    摘要翻译: 一种通过具有侧基羧酸基团的全氟化碳共聚物阳离子交换膜分离成阳极室和阴极室的电解槽中电解氯化钠水溶液的电解方法。 该方法的特征在于将装入阳极室的氯化钠水溶液的钙含量降低至小于1p.p.m。 使用具有0.5至2.1毫当量/克干树脂的羧酸基离子交换容量的膜获得高电流效率。