某石英岩型高硫铜钼矿石选矿试验研究

Study on the mineral processing of a quartz-type copper-molybdenum ore with high sulfur

摘要: 对云南某高硫铜钼矿石的化学成分、矿物组成、嵌布粒度等工艺矿物学性质进行了研究，结果表明：该钼矿原矿钼含量为0.43%，钼矿物主要以辉钼矿形式赋存，矿石钼氧化率较低，嵌布粒度较粗；铜矿物主要以黄铜矿形式赋存，嵌布粒度较细。在工艺矿物学研究的基础上，对比3种常规选别流程，最终确定采用铜钼硫混选再分离流程，获得钼品位58.03%，回收率92.17%的钼精矿和铜品位15.59%，回收率64.84%的铜精矿，以及硫品位37.78%，回收率57.93%的硫精矿。

Abstract: The chemical composition, mineral constituent, and dissemination size of a high sulfur copper molybdenum ore in Yunnan were studied．The results show that the grade of molybdenum ore is 0.43%.The molybdenum minerals are mainly in the form of molybdenite and the oxidation rate of molybdenum is low, with granularity coarser.Copper minerals are mainly hosted in chalcopyrite form with finer size.On basis of the research of process mineralogy，comparing three kind of conventional flowsheet, ultimately the flowsheet of copper-molybdenum-sulfur mixed pick separation process was determined, and obtain the molybdenum concentrate with molybdenum grade 58.03% and recovery 92.17%， copper concentrate with copper grade 15.59% and recovery 64.84%, sulphur concentrate with sulphur grade 37.78% and recovery 57.93%.