青海某铜锌硫化矿选矿试验研究

针对青海某铜锌硫化矿石开展试验研究,矿石性质研究表明,该矿铜矿物嵌布粗细不均匀,大约有15%的铜矿物呈微细粒(粒度小于10μm)包裹于脉石矿物中,难以得到有效回收,同时原矿含锌较低,含量在锌矿边界品位(0.5%～1%),可考虑伴生回收。针对该矿矿石性质,采用优先浮铜工艺,可有效实现铜、锌分离,获得了铜精矿品位18.66%、铜回收率83.90%、铜精矿含金3.06g/t,锌精矿品位41.69%、锌回收率29.49%的较好选矿指标。

Experimental research on a copper-zinc sulphide ore in Qinghai

Experimental research was carried on the copper-zinc sulphide ore in Qinghai.The ore properties showed that the particle size was uneven distribution.There are about 15% copper minerals in fine grain(smaller than 10μm))wrapped in the gangue mineral,which is difficult to be effectively recycled.The content of zinc is relatively low,which is on the border of zinc grade(0.5%～1%),so the associated recovery is considered.Directed at the ore properties,when the flowsheet of preferential flotation of copper is adopted,the separation of copper and zinc can be realized.A copper concentrate with the grade of 18.66% and recovery of 83.90% and a zinc concentrate with the grade of 41.69% and recovery of 29.49% can be obtained.