In this paper,based on the study of the property of a low-grade Cu-Zn ore from Qinghai,the process flowsheet which is preferential flotation copper and the tailings of flotation Cu treated by flotation Zn was adopted,and by choosing efficient auxiliary collector A12 and T16+zinc sulfate combined inhibitors,the test results can be obtained:a copper concentrate containing 18.84％ of Cu with recovery 89.10％,a zinc concentrate containing 46.87％ of Zn with recovery 67.46％.So the copper-zinc separation was successful realized,and provided technical basis for the development and utilization of low-grade mineral resources.%在对青海某低品位铜锌矿进行矿石性质研究的基础上,采用优先浮铜再选锌的原则工艺流程,并通过选用高效辅助捕收剂A12以及T16+硫酸锌组合抑制剂,获得闭路试验指标为:铜精矿含铜18.84％,铜回收率89.10％;锌精矿含锌46.87％,锌回收率67.46％.铜锌分离取得了较好的技术指标,为低品位矿产资源的开发利用提供了技术依据.
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