Process for electrolyzing aqueous sodium or potassium ion solutions
    2.
    发明授权
    Process for electrolyzing aqueous sodium or potassium ion solutions 失效
    电解水溶性钠或钾离子溶液的方法

    公开(公告)号:US3864226A

    公开(公告)日:1975-02-04

    申请号:US29892272

    申请日:1972-10-19

    申请人: DU PONT

    发明人: SPITZER ROBERT

    CPC分类号: C25B1/46 C25B9/18

    摘要: A method and apparatus for the electrolysis of an aqueous solution containing alkali metal ions, for example, the electrolysis of brine to produce chlorine and caustic. In one embodiment, a composite membrane comprising at least an ionconductive polymer and a metal permeable to alkali metal is used in an electrolytic cell. An illustration of such a polymer is a perfluorocarbon polymer containing sulfonic acid or sulfonate groups, in intimate contact with a layer of mercury. Another aspect is the use of elevated pressures or other techniques substantially to eliminate the presence of normally gaseous products from the electrolyte. For example, high pressures may be employed to dissolve chlorine in a brine electrolyte and/or liquefy it. In another aspect, sodium sulfate is electrolyzed in a cell comprising a composite membrane, a foraminous anode, and a diaphragm between the composite membrane and anode; the oxygen produced is withdrawn through the anode.

    摘要翻译: 用于电解含有碱金属离子的水溶液的方法和装置,例如电解盐水以产生氯和苛性碱。 在一个实施方案中,在电解槽中使用至少包含离子导电聚合物和可渗透碱金属的金属的复合膜。 这种聚合物的例子是含有磺酸基或磺酸酯基的全氟化碳聚合物,与一层汞紧密接触。 另一方面是使用升高的压力或其他技术来基本上消除来自电解质的通常气态产物的存在。 例如,可以使用高压来溶解盐水电解质中的氯和/或使其液化。 另一方面,硫酸钠在包含复合膜,有孔阳极和复合膜和阳极之间的隔膜的电池中电解; 产生的氧气通过阳极排出。

    Amalgam decomposition
    3.
    发明授权
    Amalgam decomposition 失效
    AMALGAM分解

    公开(公告)号:US3595614A

    公开(公告)日:1971-07-27

    申请号:US3595614D

    申请日:1969-11-21

    申请人: OLIN CORP

    CPC分类号: C25B1/44

    摘要: A METHOD OF DECOMPOSING AN ALKALI METAL AMALGAM BY CONTACTING IT WITH WATER AND GRAPHITE BALLS HAVING A PORTION OF THEIR SURFACE COATED WITH AN UNDERLYING FERROUS METAL AND AN OVERLYING NON-FERROUS, AMALGAM-RESISTANT METAL. THE DECOMPOSITION REACTION PRODUCES HYDROGEN, AN ALKALI METAL HYDROXIDE WITH A CONCENTRATION ABOVE 50% BY WEIGHT, AND MERCURY IN WHICH THE SODIUM CONTENT IS REDUCED TO LESS THAN 0.01 PERCENT.

    Vertical denuders
    4.
    发明授权
    Vertical denuders 失效
    垂直渗透剂

    公开(公告)号:US3567401A

    公开(公告)日:1971-03-02

    申请号:US3567401D

    申请日:1967-05-05

    申请人: ICI LTD

    IPC分类号: C25B1/42 C01D1/04

    CPC分类号: C25B1/42

    摘要: A VERTICAL ALKALI-METAL AMALGAM DENUDER HAVING A RESILIENT HOLDING-DOWN PLATE TO PREVENT ATTRITION OF THE GRAPHITE PACKING. THE HOLDING-DOWN PLATE IS PREFERABLY IN THE FORM OF A RESILIENT BED OF MATERIAL (C.G. WIRE MESH) HAVING A THICKNESS OF AT LEAST ONE INCH.

    sakowski
    7.
    发明授权
    sakowski 失效

    公开(公告)号:US2732284A

    公开(公告)日:1956-01-24

    申请号:US2732284D

    IPC分类号: C25B1/42

    CPC分类号: C25B1/42