【作者】 陈炳辉； 黄志国； 万茉莉； 石贵勇；

【Author】 Chen Binghui Huang Zhiguo Wan Moli Shi Guiyong (Sun Yat-sen University)

【机构】 中山大学；

【摘要】 选择河台金矿新旧两个尾矿库区5个剖面进行野外取样,通过显微镜下观察和现代测试技术手段进行尾矿的矿物成分和元素组成分析,重点研究了不同剖面、不同粒度尾矿样Au的含量变化特征。结果表明:尾矿粒度细,在0.05 mm～0.10 mm范围约83.2%,金在不同粒度尾矿含量相对比较均匀,进一步提升磨细度来提高金回收率可能是不科学、不经济的,应考虑通过其它途径来降低尾矿的金含量。由于尾矿金、铜等含量较高,具有较大的潜在资源量,建议对尾矿还不能有效回收利用其中的金和铜之前,应作为潜在资源给予保护,不应作为原料开发另用。更多还原

【Abstract】 Tailing samples from 5 different sections were collected from the 2 tailing fields in Hetai Gold Mine.With methods of microscopic observation and advanced testing technologies,the mineral composition and metal elements,especially Au,of the tailing samples were studied.The results shows that granularities of the tailings are very fine,mainly between 0.05mm and 0.1 mm,which takes a weight percent of about 83.2%.Au disperses relatively even in different sections or different granularities of the tailings,so improvement of mill granularity is neither scientific nor economical,some other methods should be considered to reduce gold content in the tailings.Containing both high Au and Cu,the tailings are potential Au and Cu resources,which should be protected before the metals can be reclaimed.更多还原