离子膜电解工艺中电流效率的影响因素

Influencing factors of current efficiency of ion-exchange membrane electrolysis

简要分析了离子膜电解过程中影响离子膜电流效率的影响因素,提出应选择适宜的电流密度,严格控制盐水中杂质离子的含量,阴、阳极有稳定的浓度及电解温度,严格控制阳极的p H值,根据电解槽出口产品质量调整电解液和纯水流量,从而延长离子膜的使用寿命,保持高电流效率。

The factors of influencing current efficiency of ion-exchange membrane electrolysis were analyzed briefly. Current density should be suitable, impurity ions content in brine should be controlled strictly, electrolysis temperature and concentration in cathode and in anode should be stable, pH value of anode should be controlled strictly, and the electrolyte flow and pure water flow should be regulated according to electrolysis product quality, so as to prolong the service life of ion-exchange membrane and to keep high current efficiency.