从湿法炼锌钴渣中回收锌富集钴试验研究  

Recovery of Zinc and Beneficiation of Cobalt From Cobalt Residue in Zinc Hydrometallurgy

作　　者：蓝碧波 丁文涛[1,3] 申开榜 甘永刚 刘亚建 衷水平[1,2,3] 张新振 刘晓英 任杰[4] 刘乐 LAN Bibo;DING Wentao;SHEN Kaibang;GAN Yonggang;LIU Yajian;ZHONG Shuiping;ZHANG Xinzhen;LIU Xiaoying;REN Jie;LIU Le(State Key Laboratory of Comprehensive Utilization of Low Grade Refractory Gold Ores, Shanghang 364200,China;Zijin Mining and Metallurgical Research Institute,Zijin Mining Group Co.,Ltd., Shanghang 364200,China;Xiamen Zijin Mining and Metallurgy Technology Co.,Ltd.,Xiamen 361101,China;Bayannaoer Zijin Non-ferrous Metal Co.,Ltd.,Bayannur 015543,China)

机构地区：[1]低品位难处理黄金资源综合利用国家重点实验室,福建上杭364200 [2]紫金矿业集团股份有限公司紫金矿冶设计研究院,福建上杭364200 [3]厦门紫金矿冶技术有限公司,福建厦门361101 [4]巴彦淖尔紫金有色金属有限公司,内蒙古巴彦淖尔015543

出　　处：《湿法冶金》2018年第6期457-460,共4页Hydrometallurgy of China

摘　　要：研究了采用酸洗—硫化钠转化工艺从湿法炼锌钴渣中回收锌、富集钴。先通过酸洗回收钴渣中大部分可溶锌,然后用硫化钠将钴渣中的钴转化为硫化钴,同时实现除钴试剂再生。试验结果表明:最佳条件下,锌回收率为84.65%,钴渣中钴质量分数提高至6%以上,除钴试剂A再生率达47.53%;再生试剂可返回净化工序循环利用。该工艺流程简单,金属综合回收效果较好。Recovery of zinc and beneficiation of cobalt from cobalt residue in zinc hydrometallurgy were studied.By acidic leaching,most of soluable zinc in the residue is recovered,cobalt in the residue is converted into cobalt sulphide using sodium sulphide.The cobalt removed regent is regenerated at the same time.The results show that under the optimum conditions,the recovery rate of zinc reaches 84.65%,the cobalt content in the cobalt residue increases to more than 6%,and the regenerating rate of cobalt removed regent reaches 47.53%.The regenerated cobalt removed regent can be recycled in the purification process.The process is simple and the comprehensive recovery of metals is better.

关 键 词：湿法炼锌 钴渣 锌 钴 回收 除钴试剂 再生 

分 类 号：TF813[冶金工程—有色金属冶金] X705[环境科学与工程—环境工程]