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金属矿山 ›› 2013, Vol. 42 ›› Issue (10): 67-71.

• 矿物工程 • 上一篇    下一篇

某难处理金矿石选冶工艺研究

白海静1,2,3,倪青林1,李文娟2,3,蔡镠璐2,3,闫鲜1,刘美林2,3   

  1. 1.江苏省有色金属华东地质勘查局;2.北京有色金属研究总院;3.生物冶金国家工程实验室
  • 出版日期:2013-10-15 发布日期:2014-01-02
  • 基金资助:

    * “十二五”国家科技支撑计划项目(编号:2012BAB10B08)。

Study on Beneficiation and Metallurgy Processing of a Refractory Gold Ore

Bai Haijing1,2,3,Ni Qinglin1,Li Wenjuan2,3,Cai Liulu2,3,Yan Xian1,Liu Meilin2,3   

  1. 1.East China Mineral Exploration and Development Bureau in Jiangsu;2.General Research Institute for Nonferrous Metals;3.National Engineering Laboratory of Biohydrometallurgy
  • Online:2013-10-15 Published:2014-01-02

摘要: 为了给某难处理金矿石的开发提供技术依据,对其进行了详尽的选冶工艺试验研究。结果表明:采用单一浮选工艺处理该矿石,在-200目占80%的磨矿细度下,可以获得金品位为57.32 g/t、金回收率为84.00%的金精矿;采用浮选—尾矿氰化浸出工艺处理该矿石,可以先在-200目占70%的磨矿细度下获得金品位为60.09 g/t、金回收率为82.26%金精矿,然后在-200目占90%的再磨细度下获得金浸出率为10.70%的浸出液,金的总回收率达92.96%。根据试验结果,推荐采用浮选—尾矿氰化浸出工艺。

关键词: 难处理金矿石, 单一浮选, 浮选&mdash, 尾矿氰化浸出, 金回收率

Abstract: In order to provide the technical basis for developing a refractory gold ore, a detailed study on beneficiation and metallurgical processing was carried out.The results showed that: with grinding fineness of -200 mesh 80%, gold concentrate with Au grade and recovery of 57.32 g/t and 84.00% was obtained respectively by single flotation process.Through the process of floatation-tailing cyanide leaching, gold concentrate with Au grade and gold recovery of 60.09 g/t and 82.26% was firstly obtained under the grinding fineness of -200 mesh 70%.Then, gold leaching solution with Au leaching rate of 10.70% was achieved under regrinding fineness of -200 mesh 90%.Total gold recovery reached 92.96%.Therefore, according to the test results, the process of flotation-tailings cyanide leaching is recommended.

Key words: Refractory gold ore, Single flotation, Floatation-tailing cyanide leaching, Gold recovery