Method of purification of salt solutions for electrolysis
    1.
    发明授权
    Method of purification of salt solutions for electrolysis 失效
    纯化电解盐溶液的方法

    公开(公告)号:US06238544B1

    公开(公告)日:2001-05-29

    申请号:US09374505

    申请日:1999-08-16

    IPC分类号: C25B134

    CPC分类号: C01D3/145 C01D3/14 Y02W10/37

    摘要: In a method of removing impurities, especially iodine and/or silica ions, from a salt solution to be used for electrolysis, the salt solution and zirconium hydroxide are brought into contact with each other under acidic conditions, and the zirconium hydroxide adsorbs the impurities. Thereafter, the zirconium hydroxide containing the adsorbed impurities is brought into contact with an aqueous solution at a higher pH value to desorb the impurities from the zirconium hydroxide, thereby enabling the zirconium hydroxide to be recycled.

    摘要翻译: 在从用于电解的盐溶液中除去杂质,特别是碘和/或二氧化硅离子的方法中,在酸性条件下使盐溶液和氢氧化锆相互接触,氢氧化锆吸附杂质。 此后,将含有吸附杂质的氢氧化锆与较高pH值的水溶液接触以从氢氧化锆中除去杂质,从而使氢氧化锆能够再循环。

    Electrolysis process
    2.
    发明授权
    Electrolysis process 失效
    电解过程

    公开(公告)号:US06224740B1

    公开(公告)日:2001-05-01

    申请号:US09587309

    申请日:2000-06-05

    IPC分类号: C25B134

    CPC分类号: C25B1/34 C25B15/02 C25B15/08

    摘要: The invention relates to a process for the electrolysis of sodium chloride-containing brine with parallel operation of amalgam electrolysis units (5) and membrane electrolysis units (4) with a common brine circuit using a mercury-resistant oxygen consumable cathode in the membrane electrolysis unit (4).

    摘要翻译: 本发明涉及一种电解含氯化钠的盐水的方法,该方法与汞电解单元(5)和膜电解单元(4)的并联操作,在膜电解单元中使用具有耐汞的氧消耗性阴极的共同盐水回路 (4)。