辽宁某硫化钼矿选矿试验

为高效开发利用辽宁某钼矿石资源,在工艺矿物学研究的基础上,对该矿石进行了选矿试验研究。结果表明,该资源为嵌布粒度微细的辉钼矿矿石资源,钼品位为0.217%,有综合回收价值的元素硫主要以黄铁矿和磁黄铁矿的形式存在;磨矿细度为-200目占67%的矿石经2粗2扫浮钼,钼粗精矿再磨至-400目占92.10%后经6次钼精选,钼扫选尾矿1粗1扫2精选硫,中矿顺序返回流程处理,最终获得了钼品位为49.43%、回收率为91.11%的钼精矿,硫品位为53.00%、回收率为73.03%的硫精矿,钼、硫回收指标理想,因此,试验确定的闭路试验流程是该矿石开发利用的合理工艺流程。

Beneficiation Experiments on a Molybdenum Ore in Liaoning Province

Beneficiation experiment is carried out on a molybdenum ore in Liaoning province based on the process mineralogy research at the aim of high efficiently developing the molybdenum resources.The results show that，molybdenite granular is fine imbedded in the ore with molybdenum grade of 0.217%，and the valuable elements mainly exist in form of pyrite and magnetite.Molybdenum flotation of two roughing-two scavenging is carried out after grinding at the fineness of 67% -200 mesh.Molybdenum rough concentrate is reground at the fineness of 92.10% -400 mesh，and then molybdenum concentrate with molybdenum grade of 49.43% and recovery of 91.11%，and sulfur concentrate with sulfur grade of 53.00% and recovery of 73.03% are received separately through six molybdenum cleaning，and sulfur concentration from flotation tailings of molybdenum scavenging by one roughing-two cleaning-one scavenging，and middles back to the flowsheet.Both molybdenum and sulfur is ideally recovered，so this closed circuit process is reasonable for development and utilization of the ore.