离子膜法电解槽电压异常升高原因  

Cause analysis of abnormal rise in ion-exchange membrane electrolyzers voltage

作　　者：李新民 王小敏 LI Xinmin;WANG Xiaomin(Henan Pingmei Shenma Dongda Chemical Co.,Ltd.,Kaifeng 475003,China)

机构地区：[1]河南平煤神马东大化学有限公司技术质量部,河南开封475003 [2]河南平煤神马东大化学有限公司,河南开封475003

出　　处：《氯碱工业》2023年第1期1-3,共3页Chlor-Alkali Industry

摘　　要：查找电解槽电压持续每天升高3mV的具体原因。经排查,离子膜上沉积的杂质不足以引起槽电压升高这么大的幅度。考虑是盐水中有机碳和硅含量过高引起槽电压过高。从控制一次盐水品质入手,调整精制盐和湿盐配比,将二次精制盐水中T0C含量控制在0.007%左右,槽电压呈现平稳趋势,未再出现升高现象。The causes that the electrolytic cell voltage continues to rise by 3 mV every day are found out.According to the investigation,the impurities deposited on the ionic membrane are not enough to cause such a large rise in the cell voltage.It is considered that the organic carbon content and silicon content in the brine is too high,resulting in the high cell voltage.Starting from controlling the quality of primary brine,adjusting the ratio of refined salt to wet salt,the TOC content in secondary refined brine is controlled at about 0.007%.Thus,the cell voltage shows a stable trend without any increase.

关 键 词：电解槽 电压升高 盐水品质 原因 改进措施 

分 类 号：TQ114.262[化学工程—无机化工]