废铜冶炼渣浮选尾矿氨浸试验  

Experimental Study on Ammonia Leaching of Waste Copper Smelting Slag Flotation Tailings

作　　者：王盼 黄红军[1,2] 赖祥生 彭姣[1,2] WANG Pan;HUANG Hong-jun;LAI Xiang-sheng;PENG Jiao(School of Mineral Processing&Bioengineering,Central South University,Changsha 410083,China;Key Laboratory of Clean and Efficient Utilization of Calcium Mineral Resources in Hunan,Changsha 410083,China)

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083 [2]战略含钙矿物资源清洁高效利用湖南省重点实验室,长沙410083

出　　处：《有色金属（冶炼部分）》2020年第11期6-10,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFC1901601)。

摘　　要：采用氨浸工艺选择性浸出废铜冶炼渣浮选尾矿中的铜。结果表明:在NH3·H2O浓度2molL、液固比7mLg、温度30℃、搅拌速度400rmin、浸出反应时间60min的条件下,铜浸出率为53.20%,浸出渣铜品位为0.39%。浸出前后矿石颗粒大小以及形貌没有发生很大变化,浸出后矿石粗颗粒表面附着的细颗粒比浸出前减少。Copper was leached from waste copper smelting slag flotation tailings by ammonia leaching.The results show that copper leaching rate is 53.20% and copper grade in leaching residue is 0.3,% under the conditions including NH3·H2O concentration of 2 mol/L,L/S of 7 mL/g,temperature of 30℃,agitation speed of 400 r/min,and reaction time of 60 min.The size and shape of ore particles do not change greatly before and after leaching,but numbers of fine particles in surface of coarse particles of ores reduce after leaching.

关 键 词：废铜冶炼渣浮选尾矿 氨浸 粒度 浸出率 

分 类 号：TF811[冶金工程—有色金属冶金] X758[环境科学与工程—环境工程]