云南某低品位铜钼矿选矿试验研究

发布时间：2019-05-20 07:18

【摘要】：斑岩型铜钼矿是当前提取铜、钼的重要资源,其中铜矿物主要以黄铜矿为主,钼矿物一般以辉钼矿的形式存在。该类矿石中辉钼矿多与黄铜矿、黄铁矿密切共生,此外,由于辉钼矿与黄铜矿的可浮性相似,因此从铜钼矿石中回收辉钼矿难度较大,工艺也较为复杂。本文研究对象为云南某斑岩型铜钼矿,其主要矿物为黄铜矿与辉钼矿,嵌布粒度较细。对该矿进行的选矿工艺研究表明,矿石经过原矿粗磨,粗精矿再磨,1粗2精2扫、中矿顺序返回进行铜钼混浮;铜钼精矿进行脱药再磨,1粗5精1扫、中矿顺序返回进行铜钼分离,最终得到了铜品位25.91%,铜精矿回收率78.68%,钼品位45.79%,钼精矿回收率77.49%的良好指标,有效实现了铜钼分离、铜钼回收的目的,对实际工业生产中同类矿石的分选利用有着积极的指导作用,对我国铜钼矿资源的综合利用亦有着重要意义。
[Abstract]:Porphyry copper-Mo ore is an important resource for extracting copper and Mo at present, in which copper minerals are mainly chalcopyrite, and Mo minerals generally exist in the form of molybdate. Most of the molybdate ores in this kind of ores are closely symbiotic with chalcopyrite and pyrite. In addition, because the floatability of molybdate and chalcopyrite is similar, it is difficult to recover molybdate from copper-Mo ore and the process is more complex. In this paper, the main minerals of a porphyry type copper-Mo deposit in Yunnan Province are chalcopyrite and molybdate, and the grain size is fine. The study on the mineral processing technology of the mine shows that the ore has gone through rough grinding of the original ore, regrinding of the crude concentrate, 1 coarse, 2 fine and 2 sweep, and the middle ore sequence has been returned to the mixed floatation of copper and Mo. The copper and Mo concentrate was removed and reground, 1 thick, 5 fine and 1 swept, and the middle ore sequence was returned to the separation of copper and Mo. Finally, the copper grade was 25.91%, the recovery rate of copper concentrate was 78.68%, and the Mo grade was 45.79%. The recovery rate of Mo concentrate is 77.49%, which effectively realizes the separation of copper and Mo and the recovery of copper and Mo, and plays a positive guiding role in the separation and utilization of the same kind of ores in practical industrial production. It is also of great significance to the comprehensive utilization of copper and Mo ore resources in China.
【作者单位】：昆明理工大学国土资源工程学院;昆明振龙科技有限公司;
【分类号】：TD95

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