某含石墨低品位斑岩型铜钼矿石选矿试验

发布时间：2019-03-15 11:28

【摘要】：某含铜0.37%、含钼0.0096%,硫化铜占总铜的89.19%、硫化钼占总钼的85.42%的低品位斑岩型铜钼矿石,其可供综合回收或伴生回收的元素有金、铼等贵金属和铁,矿石中含有的少量片状石墨将影响钼矿物的浮选效果。为确定该矿石的选矿工艺,进行了选矿试验。结果表明,矿石经1粗3精铜钼等可浮、1粗4精1扫铜钼分离、1粗3精2扫强化浮铜、1粗1精1扫弱磁选选铁、中矿顺序返回流程处理,可获得钼品位36.33%、含铜1.69%、钼回收率68.12%的钼精矿,铜品位19.24%、含金2.42 g/t、含钼0.095%、铜回收率84.94%的铜精矿,铁品位66.19%、铁回收率50.87%的铁精矿。浮选钼精矿经重选脱碳,获得了钼品位49.03%、钼综合回收率为58.35%、含铼618.46 g/t、铼综合回收率为27.22%的钼精矿。
[Abstract]:A low-grade porphyry copper-molybdenum ore containing 0.37% copper, 0.0096% molybdenum, 89.19% cupric sulphide and 85.42% molybdenum sulphide is a low-grade porphyry copper-molybdenum ore. The elements for comprehensive recovery or associated recovery are gold, rhenium and other precious metals and iron. A small amount of flake graphite contained in the ore will affect the flotation effect of molybdenum minerals. In order to determine the ore dressing process, the mineral processing test was carried out. The results show that the ore can be floated by 1 coarse 3 fine copper and molybdenum, 1 coarse 4 fine 1 sweep copper and molybdenum separation, 1 coarse 3 fine 2 sweep enhanced floating copper, 1 coarse 1 fine 1 weak magnetic separation iron, and 1 coarse 1 fine 1 weak magnetic separation process, and the molybdenum grade of 36.33% can be obtained. Molybdenum concentrate containing 1.69% copper, 68.12% molybdenum recovery, 19.24% copper grade, 2.42 g gold content, 0.095% molybdenum, 84.94% copper recovery copper concentrate, 66.19% iron grade, with copper recovery rate of 84.94%, copper grade of 19.24%, gold content of 2.42 g / t, molybdenum content of 0.095%. Iron recovery of 50.87% iron concentrate. The molybdenum concentrate with molybdenum grade 49.03%, molybdenum recovery 58.35%, rhenium 618.46 g / t and rhenium recovery 27.22% was obtained from the flotation molybdenum concentrate by gravity separation decarbonization.
【作者单位】：紫金矿业集团股份有限公司;
【分类号】：TD95

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