中文摘要：

对某难选铜钼矿进行了工艺矿物学研究，研究结果表明，该矿石中辉钼矿呈网丝状，黄铜矿充填于其中，矿石的这种结构造成浮选分离困难。通过实验确定了铜钼分离浮选生产中的最佳药剂制度：在粗选阶段，硫化钠40．00kg·t^-1，水玻璃1．00kg·t^-1，煤油0．50kg·t^-1；在一次扫选阶段，硫化钠20．00kg·t^-1，水玻璃0．50kg·t^-1，煤油0．25kg·t^-1；在二次扫选阶段，硫化钠10．00kg·t^-1，水玻璃0．25kg·t^-1，煤油0．13kg·t^-1；在精选阶段，水玻璃10．00kg·t^-1，煤油1．00kg·t^-1。在此基础上，通过现场考察和现场验证研究确定了生产调试方案，并进行了生产试运行，结果表明调试后铜钼分离效果良好，产品钼精矿中的铜含量由调试前的1．50％～1．80％降到0．10％～0．20％；铜精矿中的钼含量由调试前的1．10％～1．40％降到0．50％～0．80％，产品钼精矿的品位由调试前的20％提高到33％。

英文摘要：

The paper gave an investigation on the technological mineralogy of a refractory copper-molybdenum ore. The analysis result suggested that molybdenum presented filamentous feature and it was filled with chalcopyrite. This kind of ore structure made the separation of chalcopyrite from molybdenum difficuh. Reagent system for the separation of chalcopyrite and molybdenite were determined in this study. During the roughing separation stage, the dosages of sodium sulphide, sodium silicate and kerosene were 40.00, 1.00 and 0.50 kg·t^-1, respectively. During the first scavenging stage, the dosages of sodium sulphide, sodium silicate and kerosene were 20. 00, 0.50 and 0.13 kg·t^-1, respectively. During the second scavenging stage, the dosages of sodium sulphide, sodium silicate and kerosene were 10.00, 0.25 and 0. 13 kg·t^-1, respectively. During the cleaning stage, the dosages of sodium silicate and kerosene were 10.00 and 1.00 kg·t^-1, respectively. The field adjustment scheme was fixed according to the field inspection and the verification test. The filed production practice suggested that the separation of chalcopyrite and molyhdenite achieved satisfied results. The content of copper in the molybdenum concentrate decreased from 1.50% - 1.80% to 0.10% - 0.20% ; the content of molybdenum in copper concentrate decreased from 1.10% - 1.40% to 0.50% - 0.80% ; the grade of molybdenum concentrate increased from 20% to 33%.