Research on Mineral Processing a Low-grade Refractory Copper Oxide Ore of Containing High Native Copper in Yunnan
Aiming at a low grade high-grade natural copper copper oxide ores in Yunnan Province,exploratory experiment were carried out by using shaker gravity separation,fine screening,concentrate flotation and mixed flotation.The results show that mixed flotation is the best separation process for treating the ore.A final manganese concentrate with recovery of 79.43％is obtained after sorting,when mixed flotation with 12％of the other two ore sections under the production process conditions.Compared to the concentrate flotation,the recovery is increased by 17.33％.In production,a copper concentrate with grade of 21.29％and recovery of 91.05％can be obtained.Compared to the ore not mixed with a specific proportion,the concentrate grade is raised by 0.81％and the recovery is increased by 0.58％.
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