就某地微细粒含量高、易泥化的难选铜矿石,提出部分优先浮选新工艺,即原矿经破碎磨矿后采用高效、节能的微细粒分选设备旋流-静态微泡浮选柱进行分选,直接得到部分最终合格精矿,解决了该铜矿中微细粒级浮选机回收能力差造成金属流失的问题.在最优参数条件下进行了连选试验.研究结果表明,采用该工艺流程可以优先得到铜品位21.46%,回收率30.04%的铜精矿.%For a refractory copper ore with feature of fine particle and ease-to-slime, a new flow-sheet of partially preferential flotation was proposed, that is, raw ores are separated after crushing and grinding by the high efficiency and energy-saying micro-fine separator with cyclonic-static micro-bubble flotation column to directly get some final qualified concentrate. By this way, the problem of low recovery capacity by micro-fine flotation machine for a copper mine which result in metal loss are resolved. And the pilot experiments are carried out by adopting the optimum conditions. The results show that the high quality copper concentrates are obtained by this flow-sheet, which contain Cu of 21.46％ with a 30.04％ of recovery rate.
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