黄金科学技术 ›› 2023, Vol. 31 ›› Issue (6): 888-899.doi: 10.11872/j.issn.1005-2518.2023.06.059
吴荔1(),匡文龙1(),张志辉2,陈健龙3,张跃权1,刘兆阳1,黄英剑1
Li WU1(),Wenlong KUANG1(),Zhihui ZHANG2,Jianlong CHEN3,Yuequan ZHANG1,Zhaoyang LIU1,Yingjian HUANG1
摘要:
银山多金属矿田可划分为铜和铅锌2个成矿系列。为深入了解银山矿田铜矿石中伴生金的赋存状态和主要矿石矿物的工艺特性,在实地考察和室内测试的基础上,采用岩矿鉴定和扫描电镜等技术手段,对银山矿田九区—西山区铜矿石工艺矿物学特性进行了研究。结果表明:金矿物赋存状态以包裹金(46.41%)为主,其次为粒间金(44.17%)和裂隙金(9.42%)。金矿物粒度以微粒金(94.61%)为主,辅以少量细粒金和中粒金,尚未发现粗粒金和巨粒金。金矿物中Au元素含量为75.87%~95.68%,Ag元素含量为4.32%~24.13%,Ag和Au元素含量比值为0.05~0.32。银山矿田金矿物以银金矿为主,含有少量自然金,金平均成色达到843.7。通过梳理伴生金的赋存状态,有助于优化矿石选矿流程,从而提高金的回收率,增加矿山经济效益。
中图分类号:
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