辽宁某难选钼矿石浮选试验

辽宁某难选钼矿石主要有用矿物为辉钼矿，脉石矿物为石英、长石、绿泥石、方解石、铝土矿等，矿石中主要有价金属元素为钼。为合理开发利用该资源，采用阶段磨矿、阶段浮选工艺对该矿石进行了选矿试验。结果表明，采用原矿磨细至-0.071 mm占60%，在水玻璃用量为2 000 g/t、煤油用量为200 g/t、2号油用量为70 g/t条件下粗选，粗精矿细磨至-0.071 mm占94%，经3次精选，粗选尾矿经1次扫选的流程，可以获得钼品位为45.25%、回收率93.56%的钼精矿，为合理开发利用该矿石提供了依据。

Flotation Separation of a Refractory Molybdenum Ore in Liaoning

College of Resources and Civil Engineering，Northeastern University,Shengyang 110819,China Main minerals of a refractory molybdenum ore is molybdenite，gangue minerals are quartz，feldspar，chlorite and calcite，bauxite，etc.the valuable elements is molybdenum.In order to develop and utilize the resource，stage grinding，stage flotation process is carried out.The results show that，at the grinding fineness of 60% passing 0.071 mm，with sodium silicate dosage of 2 000 g/t，kerosene of 200 g/t，2# oil of 70 g/t for rough floatation，rough concentrate grinding at 94% passing 0.071 mm through three cleaning operation，rough tailing through one scavenging process，molybdenum concentrate with molybdenum grade of 45.25% and recovery of 93.56% is obtained，which can provides basis for development of the ore.