某金矿尾矿浮选回收金工艺研究

现代矿业 ›› 2020, Vol. 36 ›› Issue (11): 117-120.

某金矿尾矿浮选回收金工艺研究

张兴旺¹孙志勇²

1.宁夏工商职业技术学院；2.西北有色地质研究院

出版日期:2020-11-25 发布日期:2021-09-27

Study on the Technology of Recovering Gold from Tailings of a Gold Mine

ZHANG Xingwang¹ SUN Zhiyong²

1.Ningxia Vocational Technical College of Industry and Commerce； 2.Northwest Nonferrous Geological Research Institute

Online:2020-11-25 Published:2021-09-27

摘要/Abstract

摘要： 某金矿尾矿含金0.68 g/t，含银4.50 g/t，具有较高的综合利用价值，为进一步回收有用元素，对某金矿尾矿进行了工艺矿物学和选别工艺流程研究。原矿物相分析结果表明，金以自然金和包裹金的形式存在，其中自然金占56.50%。浮选试验结果表明：在-0.074 mm 80%的条件下，采用1粗1扫3精的浮选工艺流程，可获得金品位27.68 g/t、银品位107.311 g/t、金回收率72.18%、银回收率42.77%的金精矿，综合回收效果较好。

关键词: 金矿重选浮选综合回收

Abstract: The tailings of a gold mine contain 0.68 g/t gold and 4.50 g/t silver,which has high comprehensive recovery value.In order to recover useful elements,the process mineralogy and beneficiation process of a gold mine tailings were studied.The results of mineral phase analysis show that gold exists in the form of native gold and wrapped gold,of which natural gold accounts for 56.50%.The results show that under the condition of 80% of -0.074 mm,the gold concentrate with 27.68 g/t gold grade,107.311 g/t silver grade,72.18% gold recovery rate and 42.77% silver recovery rate can be obtained by using one roughing,three cleaning and one scavenging flotation process.

Key words: gold ore, gravity separation, flotation, comprehensive recovery

张兴旺孙志勇. 某金矿尾矿浮选回收金工艺研究[J]. 现代矿业, 2020, 36(11): 117-120.

ZHANG Xingwang SUN Zhiyong. Study on the Technology of Recovering Gold from Tailings of a Gold Mine[J]. Modern Mining, 2020, 36(11): 117-120.

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