Experimental study on copper-molybdenum comprehensive recovery from a zinc concentrate in Fujian
The zinc concentrate of a zinc beneficiation plant in Fujian contains 47.33%zinc,1.29%copper,and 0.49%molybdenum,with copper and molybdenum not effectively recovered.For this zinc concentrate,experi-mental research was conducted using a regrinding and agent removal-copper and molybdenum mixed flotation-cop-per and molybdenum separation process.The copper and molybdenum mixed flotation process employed a roughing stage,two scavenging stages,and three cleaning stages,followed by regrinding of the roughing concentrate,while the copper and molybdenum separation process included a roughing stage,a scavenging stage,and four cleaning stages.The closed-circuit test of the entire process yielded a copper concentrate containing20.11%copper and0.78 g/t gold,with a copper recovery rate of 65.9%;a molybdenum concentrate containing39.49%molybdenum and18.28 g/t rhe-nium,with a molybdenum recovery rate of 93.0%;and a zinc concentrate containing 49.53%zinc,with a recovery rate of 99.0%.This effectively reduced the impurities of copper and molybdenum in the zinc concentrate,while obtaining high-quality copper and molybdenum concentrates,achieving efficient separation of zinc,copper,and molybdenum.
zinc concentrateregrinding and agent removalmixed flotationcopper and molybdenum separationcomprehensive recovery
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