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2. 发明授权

US4560461A Electrolytic cell for use in electrolysis of aqueous alkali metal chloride solutions 失效
标题翻译：用于电解碱金属氯化物水溶液的电解槽
公开(公告)号：US4560461A
公开(公告)日：1985-12-24
申请号：US366582
申请日：1982-04-08
申请人： Toshimasa Okazaki , Shuta Nakagawa
发明人： Toshimasa Okazaki , Shuta Nakagawa
IPC分类号： C25B9/08 , C25B9/20 , C25B11/03 , C25B9/00 , C25B13/08
CPC分类号： C25B11/03 , C25B9/08 , C25B9/20
摘要： In electrolytic cell for use in electrolysis of aqueous alkali metal chloride solutions, which comprises one or more vertical expandable anodes, one or more vertical cathodes and one or more cation-exchange membranes each located between a pair of the opposite anode and cathode plates; an improvement is now provided, which is lying in the newly devised cathode structure comprising a vertical cathode, a flexible and foraminate metal mesh of low hydrogen-overvoltage removably mounted on one side of said cathode, a hydraulically permeable and hydrogen gas bubbles-impenetrable microporous film removably mounted on said metal mesh, and a cation-exchange membrane removably mounted on said microporous film, in such way that the expandable anode as located adjacent to said cation-exchange membrane is able to exert a resilient force to push the cation-exchange membrane against the microporous film, the metal mesh and the cathode plate; and to bring the latter elements into close contact with each other. This cathode structure effectively prevents the cation-exchange membrane from being attached with and covered with the developed hydrogen gas bubbles, resulting in prevention of unduly increased cell voltage in operation of the cell.
摘要翻译：在用于电解碱金属氯化物水溶液的电解池中，其包含一个或多个垂直可膨胀阳极，一个或多个垂直阴极和一个或多个阳离子交换膜，其各自位于一对相对的阳极和阴极板之间; 现在提供了一种改进，其位于新设计的阴极结构中，该阴极结构包括垂直阴极，可拆卸地安装在所述阴极的一侧上的低氢过电压的柔性和有孔金属网，液压可渗透和氢气气泡不可渗透的微孔膜可移除地安装在所述金属网上，以及可移除地安装在所述微孔膜上的阳离子交换膜，使得位于邻近所述阳离子交换膜的可膨胀阳极能够施加弹性力以推动阳离子交换膜对微孔膜，金属网和阴极板; 并使后者相互紧密接触。该阴极结构有效地防止了阳离子交换膜与显影的氢气气泡附着并被其覆盖，从而防止电池工作时电池电压过度增加。

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