有机物及钴含量对锌电解的影响

The Influence of Organic Substances and Cobalt Content on Zinc Electrolysis

湿法炼锌过程出现烧板情况,分析原因主要是因有机物、钴含量异常引起。对铟萃余液中P_(2)0_(4)和煤油进行化验定量分析,在电解实验中找出萃取液中适合锌电解的P_(2)0_(4)和煤油最高允许值,采用活性碳吸附铟萃余液中的有机物P_(2)0_(4),并验证含钴量对析出锌质量的影响,通过试验等研究了锌电解系统中的有机物、钴含量和采取处理的措施,解决锌电解烧板问题,取得了较好的效果。

The main reason for the occurrence of plate burning in the process of zinc hydrometallurgy is caused by the abnormal con‐tent of organic matter and cobalt.Quantitative analysis was conducted on P_(204) and kerosene in the residual solution of indium extraction,the maximum allowable values of P_(204) and kerosene suitable for zinc electrolysis were found in the electrolysis experiment,and the organic P_(204) in indium raffinate was adsorbed by activated carbon.The effect of cobalt content on the quality of zinc precipitated was verified.Through experiments and some other researchs,the organic matter and cobalt content in the zinc electrolysis system,as well as the measures taken for treatment have been studied to solve the problem of zinc electrolysis burning,and have achieved good results.