从郴州某冶炼渣中分选锌铅银  

Comprehensive Recovery Zn and Pb-Ag from a Smelting slag in Chenzhou

作　　者：刘三军[1] 姚文明[1] 覃文庆[1] 岳琦[1] 薛凯[1] 贺国帅[1] 李文华[1] 曹杨[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《金属矿山》2016年第7期182-185,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:51574282);中南大学博士后科学基金项目(编号:134707);2015年中南大学硕士生自主探索创新项目(编号:2015zzts269)

摘　　要：郴州某冶炼渣中铅、锌、银、铁、硫含量分别为7.23%、5.02%、143.28 g/t、45.70%、21.11%。为开发利用该二次资源,对有代表性试样进行了选矿试验。结果表明:在磨矿细度为-0.074 mm占72%条件下,以硫酸铜为活化剂、生石灰为抑制剂、异丁基黄药为捕收剂,经1粗1扫2精流程选锌,选锌尾矿再磨至-0.038 mm占84%后经1次摇床重选选铅银,可获得锌品位为40.02%、回收率为80.36%的锌精矿,以及铅、银品位分别为45.56%和1 000.12g/t,铅、银回收率分别为62.83%和69.59%的铅银混合精矿。There is 7. 23% lead,5. 02% zinc,143. 28 g/t silver,45. 70% iron,and 21. 11% sulphur in a smelting slag from Chenzhou. Beneficiation experiments were conducted on the typical sample to develop and utilize the secondary resource.The results indicated that,at the grinding fineness of 72% passing 0. 074 mm,with copper sulfate as the activator,quicklime as inhibitors and isobutyl xanthate as collector via one roughing-one scavenging-two cleaning closed circuit process for enrichment of zinc,and at the regrinding fineness of 84% passing 0. 038 mm via shaking table for enrichment of lead and silver from zinc tailings,zinc concentrate with 40. 02% Zn and recovery of 80. 36% are obtained,and lead-silver mixed concentrate with45. 56% Pb and recovery of 62. 83%,and with 1 000. 12 g/t Ag and recovery of 69. 59% are obtained.

关 键 词：冶炼渣 浮选 再磨 摇床重选 

分 类 号：TD923.7[矿业工程—选矿]