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广东省莲花山矿钨精选尾砂是一种合高砷的多金属硫化矿.按目前矿山的生产能力,每年可排放这种尾砂近万吨.国内对于这种含多种有价元素的尾砂,除少数厂矿进行回收而外,绝大多数厂矿对这种资源的综合利用或未予重视,或因提不出较为满意的流程而废弃.我们在探索性试验的基础上,采用全湿法流程分二步处理该种矿物获得了成功.即先用氧压—盐酸浸出法从钨尾砂中优先提取钴、镍、铜;然后再用富氧氰化法从渣中提金.前者已通过了评议,推荐扩试,后者也获得了好的结果,准备申请扩试.
Guangdong Province Lotus Hill Tungsten tailing tailings is a combination of high-arsenic polymetallic sulfide ore.According to the current production capacity of mines, the tailings can be discharged nearly ten thousand tons per year.For the domestic with a variety of valuable elements Of the tailings, with the exception of a small number of factories and mines for recycling, the vast majority of mines on the comprehensive utilization of such resources or not valued, or unable to mention the more satisfactory process and abandoned.We exploratory test based on the use of The whole wet process succeeded in treating this kind of mineral in two steps: Firstly, cobalt, nickel and copper were preferentially extracted from tungsten tailings by oxygen pressure-hydrochloric acid leaching method; then the gold was extracted from slag by oxygen-rich cyanidation The former has passed the review, recommended expansion, which also obtained good results, ready to apply for expansion.