提高云南某铅锌矿回收率的选矿工艺研究

研究结果表明 ,与现有生产流程相比 ,在云南某铅锌矿采用优先浮选流程可得到较为满意的分选指标。小型闭路试验铅精矿的铅品位与回收率均有较大幅度的提高 ,品位提高约 8%、回收率提高约 10 %,铅品位可达 5 0 %以上 ,回收率约 87%左右。铅精矿中银回收率约提高 6%;锌精矿品位接近而回收率约提高 2 %,损失在尾矿中的铅锌金属量大幅度下降

THE RESEARCH ON BENEFICIATING PROCESS FOR RAISING RECOVERY OF CERTAIN Pb-Zn MINE IN YUNNAN PROVINCE

The research results show that the separation indices by using selective flotation flowsheet in certain lead-zinc mine in Yunnan province, are more satisfied compared with the existing operation process. The grade and recovery of lead-concentrate gained from small batch closed-circuit test can be raised 8% and 10% respectively. The grade of lead-concentrate is more than 50%, and the recovery 87% or so. Moreover, the recovery of silver enriched in lead-concentrate is also raised about 6%. In the condition of keeping the similar grade of zinc-concentrate, the zinc recovery can be raised about 2%. Therefore, the quantity of lead and zinc losed in tailings is largely reduced.