云南某低品位硫-氧混合型铜矿石浮选试验

云南某铜矿石属典型的低品位、高氧化率硫 氧混合型铜矿石，含铜033%，其中硫化铜占有率为4909%，氧化铜占有率为5091%。为确定该矿石的开发利用工艺，进行了选矿试验研究。结果表明，在磨矿细度为-0074 mm占8640%的情况下，采用1粗3精1扫流程浮选硫化铜矿物、1粗3精1扫流程浮选氧化铜矿物，可获得铜品位1858%、回收率7755%、金品位423 g/t的铜精矿。试验指标良好，实现了低品位硫 氧混合型铜矿石中铜、金的高效综合回收，可作为该矿石开发利用工艺设计的依据。

Study on Flotation Tests for a Low grade Mixed Sulphide oxide Copper Ore in Yunnan Province

A low grade and high oxidation rate of mixed sulphide oxide copper ore in Yunan Province contains Cu content of 0.33%,copper sulphide of 49.09% and copper oxide of 50.91%.In order to determine the development and utilization technology of the ore,the mineral processing testing studies were carried out.The results presented that in the case where the grinding fineness is -0.074 mm accounting for 86.40%,the copper concentrate with copper content of 18.58%,recovery rate of 77.55% and gold content of 4.23 g/t can be obtained by using a copper sulfide flotation process and a copper oxide flotation process with both one stage of roughing three stages of cleaning one stage of scavenging procedures.The indexes of test results performed well,and the study realized an efficient comprehensive recovery of copper and gold in low grade mixed sulphide oxide copper ore,which could provide the technological design basis for the mine development and ore utilization.