新疆难处理铜矿浮选试验研究与应用

Experimental Study and Application of Flotation of Complex Refractory Copper Ore in Sin Kiang

本文针对新疆低品位高氧化难选铜矿进行了试验研究,试验通过筛分和浮选试验,系统考察了粒度分布、浮选pH值、药剂制度等对铜回收率的影响。结果表明碱性环境有利于铜的浮选回收,釆用HCC、异戊基钾黄药组合及其与异戊基钠黄药三种捕收剂的组合使用,能实现铜的高效回收。在pH值为10,HCC、异戊基钠黄药和异戊基钾黄药配比为1:3:2的条件下,闭路浮选铜回收率达81.32%,现场生产铜浮选回收率达75.27%。

In this paper,a low grade and high oxidized refractory copper ore in Xinjiang was studied experimentally,and the influence of particle size distribution,flotation pH value and medicament system on copper recovery was investigated through screening and flotation tests.The results showed that high alkaline environment was favorable for flotation recovery of copper,and the effective recovery of copper could be achieved by using two kinds of or three kinds of combination collector,such as HCC,potassium isopentyl xanthate or isopentyl xanthate.Under the condition of pH 10 and HCC,potassium isopentyl xanthate or isopentyl xanthate ratio of 1:3:2,the recovery of closed circuit copper coarse in laboratory flotation reached 81.32%,and the recovery rate of closed circuit copper in the field was 75.27%.