某含金银高硫微细粒铜锌矿石中有用矿物粒度微细，黄铜矿与闪锌矿、方铅矿、毒砂关系密切，且硫高达21．44％。针对该矿石性质特点，试验探索了铜锌优先浮选、铜锌等可浮浮选、铜锌硫等可浮浮选、铜锌混浮—铜锌精矿再磨—铜锌分离、铜锌硫混浮—精矿再磨—铜锌硫分离等5种选别流程。试验结果表明：铜锌硫混浮—精矿再磨—铜锌硫分离流程适宜处理该矿石，其技术指标较好；同时，硫精矿（金银粗精矿）采用湿法工艺进行处理，也取得了良好的技术指标。
The useful mineral particles in one gold and silver contained copper-zinc ore are micro-fine with high content of sulfur,chalcopyrite is closely related to sphalerite,galena,and arsenopyrite,and the content of sulfur is as high as 21.44%.In this paper,according to the characteristics of the ore properties,five processes are explored inclu-ding selective flotation of copper and zinc,the flotation capacity of copper and zinc,the flotation capacity of copper, zinc and sulfur,mixed flotation of copper and zinc-regrinding of copper and zinc concentrates-separation of copper and zinc,mixed flotation of copper,zinc and sulfur-regrinding of concentrates-separation of copper,zinc and sulfur. The results show that the process of mixed flotation of copper,zinc and sulfur-regrinding of concentrates-separation of copper,zinc and sulfur is well suited for the treatment of the ore with good technical indexes;at the same time it a-chieves good technical indexes with sulfide concentrates( gold and silver roughing concentrates) subject to metallurgi-cal treatment method.
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