青海某铅锌金银多金属矿综合回收试验研究

针对青海某铅锌金银多金属矿矿石性质,采用浮选—尾矿氰化浸出流程进行了试验研究。其结果表明:在最佳试验条件下,浮选闭路流程获得的硫化铅精矿铅品位45.05%,氧化铅锌混合精矿铅+锌品位49.02%,铅总回收率80.10%,锌总回收率54.22%;浮选尾矿再进行氰化浸出,金总回收率为73.29%,银总回收率为79.99%;试验指标较好,矿产资源得到了综合回收。

Experimental research on comprehensive recovery in a lead-zinc-gold-silver polymetallic mine in Qinghai

According to the property of ores from a lead -zinc-gold-silver polymetallic mine in Qinghai , the paper carried out experimental study on a flotation -cyanidation of tailings process .The results show that under opti-mal conditions,a closed circuit flowsheet can obtain a lead sulfide concentrate with lead grade of 45.05 %,a mixed concentrate of lead and zinc oxide with the grade of zinc plus lead of 49.02%,total recovery of lead is 80.10%,and total zinc recovery is 54.22%;cyanidation leaching of tailings after flotation leads to total gold recovery of 73.29%, total silver recovery of 79 .99 %.The test indicates good index and the mineral resources get comprehensively recov-ered.