湿法炼锌系统锑的分布及脱除技术的研究  

Study on the Distribution and Removal of Antimony in Zinc Hydrometallurgy System

作　　者：吴冠坤 王宏伟 何乃勇 李守荣[2] 李彦龙[2] WU Guan-kun;WANG Hong-wei;HE Nai-yong;LI Shou-rong;LI Yan-long(Northwest Lead-Zinc Smelter,Baiyin 730900,China;Northwest Research Institute of Mining and Metallurgy,Baiyin 730900,China)

机构地区：[1]西北铅锌冶炼厂,甘肃白银730900 [2]西北矿冶研究院,甘肃白银730900

出　　处：《甘肃冶金》2022年第3期67-69,共3页Gansu Metallurgy

摘　　要：湿法炼锌在电积生产过程中,随着系统运行,锑会不断累积,出现锑含量超标的情况。锑在湿法炼锌生产过程中是一种有害元素,当锑含量超标时,不仅影响锌电积过程,导致“烧板”;还会使阴极锌反溶,降低电流效率。经检测,锑存在于湿法炼锌系统中的中上清液、一净后液、二净后液以及新液当中,其中中上清液占绝大部分。本研究采用锌粉置换法,为减少锌粉使用量同时在系统中加入微量硫酸铜。本研究在80℃的条件下加入18.36 g锌粉、1 g硫酸铜,反应40 min,可使系统中的锑含量从1.2 mg/L降低到0.03 mg/L,达到生产要求。In the electrodeposition process of zinc hydrometallurgy, with the operation of the system, antimony will accumulate continuously, resulting in the situation that the content of antimony exceeds the standard. Antimony is a harmful element in the production process of zinc hydrometallurgy. When the content of antimony exceeds the standard, it not only affects the electrodeposition process of zinc, leading to "plate burning". It also causes the cathode zinc to dissolve and reduces the current efficiency. After detection, antimony exists in the wet zinc smelting system in the supernatant, a net liquid, two net liquid and new liquid, among which the supernatant accounted for the majority. In this study, zinc powder replacement method was adopted to reduce the use of zinc powder while adding trace copper sulfate into the system. In this study, the antimony content in the system was reduced from 1.2 mg/L to 0.03 mg/L by adding 18.36 g zinc powder and 1 g copper sulfate at 80 ℃ for 40 min, reaching the production requirements.

关 键 词：湿法炼锌 锑的分布 净化 除锑 

分 类 号：TF813[冶金工程—有色金属冶金]