两段高温除钴三段深度净化工艺的改进与实施  

Process Improvement and Implementation of Two-Stage High Temperature Cobalt Removal and Three-Stage Deep Purification

作　　者：张强[1] 李伟强 金山 李佩 

机构地区：[1]巴彦淖尔紫金有色金属有限公司,内蒙古巴彦淖尔015543

出　　处：《有色金属（冶炼部分）》2017年第11期14-17,53,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家高技术研究发展计划(863计划)项目(2011AA061001)

摘　　要：巴彦淖尔紫金锌冶炼厂二期改扩建后,中性浸出液采用两段高温除钴三段净化工艺参数为:反应温度75~90℃、锌粉添加量0.5~5.5kg/m3、锑盐添加量2~6g/m3,深度除杂效果显著,其中Cu≤0.20mg/L、Cd≤0.3mg/L、Co≤0.2mg/L、Sb≤0.02mg/L,满足48h电积要求。After second phase reorganization and expansion, Bayannur Zijin Zinc Smelter adopts two-stage high temperature cobalt removal and three-stage deep purification parameters including reaction temperature of 75～90℃, zinc powder dosage of 0.5～5.5 kg/m^3, and dosage of antimony salt of 2～6 g/m^3. Deep purification is well achieved effect with Cu～0.20 rag/L, Cd≤0.3 mg/L, Co≤0.2 mg/L, and Sb≤0.02 rag/L, meeting requirement of 48 h electrowinning.

关 键 词：湿法炼锌 三段净化 除钴 

分 类 号：TF813[冶金工程—有色金属冶金]