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1. 发明授权

US4790915A Process for the electrolysis of alkali metal chloride solutions 失效
标题翻译：电解碱金属氯化物溶液的方法
公开(公告)号：US4790915A
公开(公告)日：1988-12-13
申请号：US2142
申请日：1987-01-12
申请人： August Winsel , Rudolf Staab , Nikolaj Medic
发明人： August Winsel , Rudolf Staab , Nikolaj Medic
IPC分类号： C25B1/46 , C25B11/04 , C25B1/00
CPC分类号： C25B11/0489 , C25B1/46
摘要： A process is described for electrolyzing aqueous alkali metal chloride solutions in a membrane cell which contains an anode chamber with the anode and a cathode chamber with the cathode, the two chambers being separated from one another by a cation exchanger membrane. The cathode is porous and foil-like. The cathode and cation exchanger membrane form the actual cathode chamber filled with catholyte and the cathode and cell wall form a gas space. Water is fed into the cathode chamber and alkali metal hydroxide solution is withdrawn from it, hydrogen is withdrawn from the cathode chamber and gas space, and aqueous alkali metal chloride solution is fed into the anode chamber and gaseous chlorine, together with depleted alkali metal chloride solution, is withdrawn from it. A direct voltage which is at least the same as the decomposition voltage is applied to the cathode and anode. A higher pressure is established in the cathode chamber than in the gas space.
摘要翻译：描述了一种用于在包含具有阳极的阳极室和具有阴极的阴极室的膜电池中电解碱金属氯化物水溶液的方法，两个室通过阳离子交换膜彼此分离。阴极是多孔的和箔状的。阴极和阳离子交换膜形成填充阴极电解液的实际阴极室，阴极和细胞壁形成气体空间。将水进入阴极室，从其中取出碱金属氢氧化物溶液，从阴极室和气体空间中取出氢气，将碱金属氯化物水溶液与贫化的碱金属氯化物一起进入阳极室和气态氯解决方案，从中撤出。将至少与分解电压相同的直流电压施加到阴极和阳极。在阴极室中建立的压力高于气体空间。

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