云南某难选氧化铅矿石选矿试验  

Beneficiation Experiments on a Refractory Lead Oxidized Ore in Yunnan

作　　者：曹然[1] 

机构地区：[1]马钢罗河矿业有限责任公司

出　　处：《现代矿业》2015年第7期63-65,共3页Modern Mining

摘　　要：云南某铅矿石铅主要以氧化铅形式存在,分布率达75.02%。矿石铅品位为2.12%、银品位为90.50 g/t、硫品位为1.31%。为开发利用该矿石,对其进行了选矿试验研究。结果表明:在磨矿细度为-0.074 mm占80%条件下,采用硫化铅与氧化铅1粗3精1扫混合浮选流程,获得了含铅55.87%、含银2 379.66 g/t,铅回收率为80.10%、银回收率为79.92%的铅精矿。There is a lead ore in Yunnan in which lead mainly exists in form of oxidized ore,with distribution rate of 75.02%,2.12% lead,90.50 g/t silver,and 1.31% sulfur.For the development and utilization of the ore,beneficiation experiments were conducted on the ore.The results show that：at the grinding fineness of 80% -0.074 mm,via lead sulfide and oxide one roughing -three cleaning -one scavenging bulk flotation process,lead concentrate with 55.87% lead,2 379.66 g/t silver,and lead recovery of 80.10%,silver recovery of 79.92% is obtained.

关 键 词：氧化铅矿石 活化浮选 硫化钠 

分 类 号：TD952[矿业工程—选矿]