高原环境对方铅矿闪锌矿原生电位浮选的影响  

Influence of Plateau Environment on the Electropotential Control Flotation of Galena and Sphalerite

作　　者：夏忠勇[1] 宋永胜[1] 李文娟[1] 陈勇[1] 

机构地区：[1]北京有色金属研究总院

出　　处：《金属矿山》2013年第2期77-80,93,共5页Metal Mine

摘　　要：为了给原生电位浮选工艺在高原地区铅锌矿山的推广应用提供理论依据,考察了高原环境中方铅矿、闪锌矿单矿物在不同pH下分别以玛瑙球和钢球为磨矿介质时的原生矿浆电位和可浮性,并与平原地区进行了对比。根据考察结果得出以下结论:高原环境会改变两种矿物的原生矿浆电位,从而加大两种矿物的可浮性差异(方铅矿可浮性更好,闪锌矿可浮性更差),因此两种矿物在高原环境中可获得比在平原环境中更好的原生电位浮选分离效果;无论是在高原地区还是在平原地区,钢球磨矿时由于铁离子会干扰原生矿浆电位,因而两种矿物原生电位浮选分离的效果都将比玛瑙球磨矿时差。随后进行的人工混合矿原生电位浮选分离试验证实了此结论。In order to give the theoretical basis of the popularization and application of origin potential flotation on lead and zinc mine in plateau area, the pulp potential and buoyancy of galena and sphalerite single mineral in different pH and with agate ball and iron hall as grinding medium are inspected, and compared with that in plain region. According to the investigation results, the conclusion is as follows： Plateau environment can change the original pulp potential of two minerals, thus increasing differences in floatability of the two kinds of minerals （ galena floatability better, sphalerite float- ability worse） , so two kinds of minerals in the plateau environment can reach better flotation separation effect than in the plain environment. Wherever in plateau area or in the plain area, because the iron ion can interfere with original pulp po- tential when iron ball as grinding medium, the flotation separation effect is worse than agate ball as grinding medium. Then the original potential flotation separation test of artificial mixed mineral proved this conclusion.

关 键 词：方铅矿 闪锌矿 高原环境 pH 磨矿介质 原生矿浆电位 可浮性 

分 类 号：TD952.2[矿业工程—选矿]