基于工艺矿物学分析的硫化载金矿含金废石综合利用研究

    Research on comprehensive utilization of auriferous gold-bearing waste rock based on process mineralogy analysis

    • 摘要: 随着胶东地区黄金开采的不断深入,金品位逐渐降低,生产成本不断提高。为提高低品位资源利用率,增加企业经济效益,对金矿生产过程中产出含金废石样品开展了工艺矿物学分析和XRT智能分选试验研究。工艺矿物学分析发现,金矿物主要赋存在黄铁矿中。矿石颗粒经X射线透射后,灰度差异明显,具有进行XRT预富集的可行性。试验结果表明,通过智能分选试验研究发现,精矿产率11.89%,精矿金品位0.95 g/t,回收率53.82%。

       

      Abstract: With the continuous deepening of gold mining in the eastern part of Jiaodong, the gold grade gradually decreases and the production cost continues to increase. In order to improve the utilization rate of low-grade resources and increase the economic benefit of enterprises, the process mineralogy analysis and XRT intelligent sorting test research are carried out on gold-bearing waste rock samples produced in the production process of gold mine. Process mineralogy analysis shows that gold minerals are mainly found in pyrite. After X-ray transmission, ore particles have obvious gray scale differences, which has the feasibility of XRT pre-enrichment. The experimental results show that through intelligent sorting experiments, it is found that the concentrate yield is 11.89%, the gold grade of the concentrate is 0.95 g/t, and the recovery rate is 53.82%.

       

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