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    Soda electrolytic cell provided with gas diffusion electrode
    1.
    发明授权
    Soda electrolytic cell provided with gas diffusion electrode 有权
    苏打电解池配有气体扩散电极

    公开(公告)号：US06368473B1

    公开(公告)日：2002-04-09

    申请号：US09530110

    申请日：2000-04-25

    申请人： Nagakazu Furuya ,  Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    发明人： Nagakazu Furuya ,  Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    IPC分类号： C25B910

    CPC分类号： C25B9/08 ,  C25B1/46 ,  C25B11/035

    摘要： A sodium chloride electrolytic cell is provided, comprising a gas diffusion electrode that allows smooth supply and discharge of catholyte for electrolyzing sodium chloride and allows oxygen gas to come in good contact therewith. The sodium chloride electrolytic cell comprises an anode chamber having an anode into which an aqueous solution of sodium chloride and a cathode chamber having the foregoing gas diffusion electrode for producing an alkaline aqueous solution, the anode chamber and the cathode chamber being divided by an ion exchange membrane. The sodium chloride electrolytic cell is arranged to effect electrolysis in such a manner that there occurs no pressure differential between the catholyte chamber and the gas chamber in the gas diffusion electrode. Further, a nickel mesh substance is fitted in a concave portion having the same size as that of the gas diffusion electrode formed in the central portion of a thin nickel plate.

    摘要翻译： 提供了一种氯化钠电解池，包括气体扩散电极，其允许阴极电解液的电解氯化钠的平滑供应和排出，并使氧气与其良好接触。 氯化钠电解槽包括具有阳极的阳极室，其中氯化钠水溶液和具有上述气体扩散电极的阴极室用于生产碱性水溶液，阳极室和阴极室被离子交换 膜。 氯化钠电解槽被设置为以不会在气体扩散电极中的阴极电解液室与气室之间发生压差的方式进行电解。 此外，将镍网状物体配合在与形成在薄镍板的中央部的气体扩散电极相同尺寸的凹部中。

    Electrolytic cell using gas diffusion electrode and power distribution method for the electrolytic cell
    2.
    发明授权
    Electrolytic cell using gas diffusion electrode and power distribution method for the electrolytic cell 有权
    使用气体扩散电极的电解槽和电解槽的功率分配方法

    公开(公告)号：US06383349B1

    公开(公告)日：2002-05-07

    申请号：US09701418

    申请日：2000-11-29

    申请人： Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    发明人： Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    IPC分类号： C25B908

    CPC分类号： C25B11/035 ,  C25B9/04 ,  C25B9/08 ,  C25B15/08

    摘要： An electrolytic cell using an oxygen cathode, for use in an ion-exchange membrane electrolytic soda process or the like, the electrolytic cell having; a structure, wherein, for effective supply and discharge of a caustic liquid and for an effective handling of a caustic liquid leakage, provided on an outer-side edge of the electrolytic cell are an upper chamber as a caustic liquid discharge outlet, a lower chamber as a caustic liquid introduction inlet, and a caustic-liquid room frame connected via a caustic liquid passage to thereby reduce a caustic liquid leakage; a structure, wherein a lower gas chamber is provided at the lower outer end of a cathode element to thereby handle a caustic liquid leakage from a gas diffusion electrode to a gas room; or a structure which uses a gas-liquid permeating gas diffusion electrode to supply an oxygen gas from an upper chamber communicating with a gas room and discharge a gas and a caustic liquid into a lower chamber.

    摘要翻译： 一种使用氧阴极的电解槽，用于离子交换膜电解苏打工艺等，所述电解槽具有： 其特征在于，在所述电解槽的外侧缘设置有用于有效地供给和排出苛性液体以及有效地处理苛性液体泄漏的结构，作为苛性液体排出口的上部室，下部室 作为苛性液体引入入口，以及通过苛性液体通道连接的苛性液体室框架，从而减少苛性液体泄漏; 一种结构，其中在阴极元件的下外端处设置下气室，从而处理苛性液体从气体扩散电极泄漏到气室; 或使用气液渗透气体扩散电极从与气室连通的上室供给氧气并将气体和苛性液体排出到下室的结构。

    Method for reducing charge in gas diffusing electrode and its charge reducing structure
    3.
    发明授权
    Method for reducing charge in gas diffusing electrode and its charge reducing structure 失效
    减少气体扩散电极中电荷的方法及其电荷减少结构

    公开(公告)号：US06372102B1

    公开(公告)日：2002-04-16

    申请号：US09581430

    申请日：2000-10-16

    申请人： Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    发明人： Akihiro Sakata ,  Koji Saiki ,  Hiroaki Aikawa ,  Shinji Katayama ,  Kenzo Yamaguchi

    IPC分类号： C25B1103

    CPC分类号： C25B11/03 ,  C25B9/04

    摘要： An electricity leading method for a gas diffusion electrode is provided, by which a gas diffusion electrode is easily fixed to a cathode current collecting frame, the contact part has reduced electrical resistance, even an electrically insulating mesh sheet can be utilized as a gas chamber, and only the gas diffusion electrode can be replaced in renewal of the electrode. The method includes preparing a gas diffusion electrode by sandwiching a conductor made of a highly conductive metallic mesh or spongy processed material in catalyst layers or attaching a catalyst layer onto the conductor while leaving the conductor exposed in the outer periphery of the electrode, and electrically connecting the exposed part of the conductor to a cathode chamber current collecting frame.

    摘要翻译： 提供了一种用于气体扩散电极的电引导方法，其中气体扩散电极容易地固定到阴极集电框架，接触部分具有降低的电阻，甚至电绝缘网片也可以用作气体室， 并且只能在更换电极时更换气体扩散电极。 该方法包括通过将由导电金属网或海绵状处理材料制成的导体夹在催化剂层中或者将催化剂层附着在导体上而制备气体扩散电极，同时使导体暴露在电极的外周，并将电连接 导体的暴露部分到阴极室集电框架。