离子膜烧碱系统氯酸盐含量高的原因以及处理  

Reasons and handling of high chlorate content in ion-exchange membrane caustic soda system

作　　者：倪光 胡金刚 NI Guang;HU Jin'gang(China Pingmei Shenma Group Kaifeng Dongda Chemical Co.,Ltd.,Pingdingshan 475000,China)

机构地区：[1]中国平煤神马集团开封东大化工有限公司,河南开封475000

出　　处：《氯碱工业》2021年第11期8-10,共3页Chlor-Alkali Industry

摘　　要：探究碳酸钠含量和盐水中氯酸盐含量的关系,发现碳酸钠含量高是氯酸盐含量高的一个原因。利用旧设备,进行氯酸盐分解装置的改造,采用盐酸分解法降低离子膜系统中的氯酸盐含量。新装置运行后,盐水中氯酸盐量基本控制在9 g/L以下,保证了离子膜法烧碱的品质,维持电解系统的稳定运行。The relationship between sodium carbonate and chlorate content in brine is explored.It is found that the high alkali content is one of the reasons for the high chlorate content.The old equipment is used to transform the chlorate decomposition unit.Hydrochloric acid decomposition method is used to reduce the chlorate content in the ion-exchange membrane system.After the new unit is put into operation,the chlorate content in brine is basically controlled below 9 g/L.Thus,the quality of ion-exchange membrane caustic soda is ensured and the stable operation of the electrolysis system is maintained.

关 键 词：盐水 氯酸盐 碳酸钠 分解 

分 类 号：TQ114.262[化学工程—无机化工]