某铜矿重介质产品提铁降硫选矿试验

某铜矿重介质产品铁品位56.24%，硫含量高达9.34%，95.72%的硫以磁黄铁矿的形式存在。为获得硫含量<2%的铁精矿，按磨矿—弱磁选—浮选原则流程对该矿石进行了选矿试验。试验结果表明，在最佳试验参数下，重介质产品经一段磨矿（-0.043 mm 85%）—1粗1精弱磁选—1粗2扫脱硫浮选流程处理，可获得产率45.23%、硫含量为1.52%、全铁品位66.50%的铁精矿，可作为后续钢铁冶炼原料的配矿使用，为此类重介质产品的利用提供技术参考。

Iron Increase and Sulfur Reduction Flotation Tests of the Heavy Medium Production in a Copper Mine

The iron grade of a copper mine′s heavy medium product is 56.24%,the sulfur content is as high as 9.34%,and 95.72% of sulfur is in the form of pyrite.In order to obtain the iron concentrate with sulfur content lower than 2%,the ore was processed according to the principle of grinding low intensity magnetic separation flotation.Experimental results show that under the optimum parameters of the test,heavy media products after one stage grinding (-0.043 mm 85%) one roughing one cleaning low intensity magnetic separation one roughing two scavenging desulfurizing flotation process processing,iron concentrate with production rate of 45.23%,sulfur content is 1.52%,total iron grade of 66.50% can be obtained,can be used as raw materials for the subsequent steel smelting of ore matching,which can provide technical reference for utilization of such heavy medium product.