广西某难选氧化铜矿选矿试验研究

Experiment Study on Mineral Processing of a Refractory Oxide Copper Ore of Guangxi

对低品位、难选的广西某氧化铜矿的分选工艺进行研究,采用硫酸浸出—铁粉置换—浮选—磁选工艺流程分选铜矿物和磁铁矿,较好的综合回收了铜、金、银、铁等金属。闭路试验可获得铜精矿含铜18.92%、含金5.48 g/t、含银357 g/t,铜、金、银的回收率分别为86.02%、60.18%、64.18%;铁精矿含铁64.12%,产率为18.93%。

The separation process of low grade refractory copper oxide ore in Guangxi was studied. The process of sulfuric acid leaching-iron powder replacement-copper floatation-magnetic separation was adopted for this ore. The test achieved good results in the comprehensive recovery of Cu,Au,Ag,Fe from the ore. Closed circuit test indicators： copper concentrate contains copper 18. 92%,gold 5. 48 g/t,silver 357 g/t. The recovery rate of copper,gold and silver was respectively 86. 02%,60. 18%,64. 18%; iron concentrate contains iron 64. 12% with the yield of 18. 93%.