刚果金某含碳硫氧混合铜矿石浮选试验

Flotation test on a carbonaceous sulfur-oxygen mixed copper ore in the Democratic Republic of the Congo

摘要: 刚果金某含碳硫氧混合铜矿铜品位1.27 %，矿石氧化率25.98 %，选别过程中存在药剂消耗量高、易泥化、选别指标低等问题。为实现该混合铜矿资源的高效利用，对其开展浮选试验研究。研究结果表明：在硫氢化钠用量为460 g/t、丁基黄药用量为190 g/t、Z200用量为120 g/t、2号油用量为180 g/t的条件下，采用两粗两扫三精的混合浮选工艺流程，可获得铜品位17.10 %、铜回收率80.76 %的铜精矿。

Abstract: The copper grade of a carbonaceous sulfur-oxygen mixed copper ore in the Democratic Republic of the Congo is 1.27 %,and the ore oxidation rate is 25.98 %.During the beneficiation process,issues such as high reagent consumption,easy sludging,and low separation indicators exist.In order to achieve efficient utilization of this mixed copper ore resource,flotation test studies were conducted.The research results indicated that using a mixed flotation process with twice roughing-twice scavenging-three times cleaning stages under the conditions of 460 g/t sodium hydrosulfide,190 g/t butyl xanthate,120 g/t Z200,and 180 g/t No.2 oil,could obtain a copper concentrate with a copper grade of 17.10 % and a copper recovery of 80.76 %.