对西藏昌都县某银铅锌铜多金属矿矿石进行了浮选试验研究，确定了采用“银、硫化铅部分混合浮选—硫化锌、氧化铅依次浮选”工艺流程。在较佳的条件下，浮选闭路试验得到银品位4254．44 g／t、含铅16．61％、回收率63．03％的银精矿，且还得到锌品位43．56％、回收率56．84％的锌精矿，铅品位39．87％、含银1684．10 g／t、铅回收率22．82％、银回收率8．69％的氧化铅富集产品。
Through systematic studies of flotation tests on a Ag-Pb-Zn-Cu polymetallic ore in Tibet ,the flow sheet of partial mixing of silver and lead sulfide-flotation of zinc sulfide and lead oxide in sequence was determined .Finally the grade of silver concentrates is 4 254.44 g/t and Pb grade of 16.61 %,the recovery rate of silver is 63.03 %;Zinc concentrates with the grade of 43.56%were obtained,the recovery rate of zinc is 56.84%;the grade of Pb in lead oxide enriched products is 39.87%,which contains 1 684.10 g/t silver,recovery of lead is 22.82%and silver 8 .69 %.
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