内蒙古某铜铅锌多金属硫化矿石选矿试验
Series No.482August 2016 金 属 矿 山METAL MINE 总第482期2016年第8期
收稿日期 2016-05-12
作者简介 周艳飞(1982 ),女,工程师,硕士三
内蒙古某铜铅锌多金属硫化矿石选矿试验
周艳飞
(凡口铅锌矿,广东韶关512325)
摘 要 内蒙古某铜铅锌多金属硫化矿石中主要有价元素为铜二铅二锌二银,主要金属矿物方铅矿二闪锌矿二黄铁
矿二黄铜矿等嵌生关系密切三为确定该矿石的选矿工艺流程,采用铜铅混浮再抑铅浮铜二锌硫混浮再抑硫浮锌原则流程进行了选矿试验三结果表明:矿石在磨矿细度为-200目占70%的情况下,采用1粗2扫3精铜铅混浮二1粗1扫2精铜铅分离二1粗1精3扫锌硫混浮二1粗2扫3精锌硫分离流程处理,获得了铜品位13．52%二含银3398．44g /t二铜回收率68．95%二银回收率29．25%的铜精矿,铅品位68．36%二含银3053．78g /t二铅回收率84．28%二银回收率46．39%的铅精矿,锌品位46．73%二含银241．13g /t二锌回收率81．85%二银回收率11．90%的锌精矿,以及硫品位16．09%二硫回收率18．89%的硫精矿三
关键词 铜铅锌多金属硫化矿石 铜铅混浮再分离 锌硫混浮再分离
中图分类号 TD923+
.7 文献标志码 A 文章编号 1001-1250(2016)-08-085-04Mineral Processing Experiment on a Cu-Pb-Zn Multi-metal Ore in Inner Mongolia
Zhou Yanfei
(Fankou Lead-zinc Mine ,Shaoguan 512325,China )Abstract Main valuable element of a Cu-Pb-Zn multi-metal ore in Inner Mongolia is copper,lead,zinc and silver,the main valuable metallic mineral is galena,sphalerite,pyrite and chalcopyrite etc,are symbiosis intimately．In order to ascertain mineral processing flow of the ore,the principle process of mineral processing experiment are adopted by process of copper-lead bulk flotation then copper float lead suppression,zinc-sulfide bulk flotation then zinc float sulfide suppression．The results show that:with grinding fineness of -200mesh passing 70%,via one roughing-three cleaning-two scavenging copper-lead bulk flota-tion,one roughing-two cleaning-one scavenging copper and lead separation,one roughing-one cleaning-three scavenging zinc-sulfide bulk flotation,one roughing-three cleaning-two scavenging zinc and sulfide separation process,copper concentrate with 13．52%Cu and 3398．44g /t Ag,Cu and Ag recovery of 68．95%and 29．25%,lead concentrate with 68．36%Pb,3053．78g /t Ag,Pb and Ag recovery of 84．28%and 46．39%,zinc concentrate with 46．73%Zn and 241．13g /t Ag,Zn and Ag recov-ery of 81．85%and 11．90%,and sulfide concentrate with 16．09%S and recovery of 18．89%was obtained．
Keywords Cu-Pb-Zn complex multi-metal sulfide ore,Copper-lead bulk flotation and then separation,Zinc-sulfide bulk flotation and then separation 我国的铜二铅二锌资源较为丰富,但普遍存在品位低二共伴生关系密切等特点三对于铜铅锌多金属二低
品位硫化矿石,国内主要采用铜铅混浮再分离二锌硫
混浮再分离的选矿工艺[1-4]三1 原矿性质内蒙古某铜铅锌矿床属复杂多金属硫化矿床,矿石中矿物种类繁多,主要金属矿物有方铅矿二闪锌矿二黄铁矿二黄铜矿二磁黄铁矿二毒砂二菱锌矿二菱锰矿二银黝铜矿二锡石等;脉石矿物以石英为主,其次是白云
母二绿泥石二白云石二钠长石等三矿石中的铜主要以原
生硫化铜的形式存在,其次为次生硫化铜,主要铜矿物黄铜矿与黄铁矿二闪锌矿嵌生关系密切,部分黄铜矿与黄铁矿互为细粒包裹;主要铅矿物硫化铅分布于
黄铁矿二闪锌矿粒间,与黄铁矿二闪锌矿接触嵌生;锌
主要以闪锌矿的形式存在三
矿石主要化学成分分析结果见表1,铜二铅二锌物
相分析结果见表2二表3二表4三
从表1可知:矿石中有回收价值的元素为铜二铅二
锌二银,金有综合回收价值三四58四