甘肃某金矿石选矿试验研究#br#

甘肃某硫化物金矿石金品位为3.34 g/t，主要载金矿物为黄铁矿、毒砂、方铅矿等金属硫化矿物。为确定该矿石的合理开发利用工艺，进行了选矿试验。结果表明，矿石在磨矿粒度为-200目70%的条件下，采用1粗2精3扫、中矿顺序返回流程处理，获得了金品位为47.44 g/t、回收率为91.87%的金精矿，选别效果较理想。

Study on Mineral Processing for a Gold Ore in Gansu

The gold grade of a sulphide gold ore in Gansu is 3.34 g/t,the main gold bearing minerals are pyrite,arsenopyrite and galena.In order to determine the reasonable development and utilization process of the ore,the ore dressing test was carried out.The results showed that the gold concentrate with gold grade of 47.44 g/t and recovery rate of 91.87% was obtained by using one roughing two cleaning three scavenging and middings back to the flowsheet in turn process,with condition of grinding particle size of -200 mesh accounted for 70%.And the separation effect was ideal.