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金属矿山 ›› 2009, Vol. 39 ›› Issue (12): 83-85+102.

• 矿物工程 • 上一篇    下一篇

山东某原生金矿石浮选试验研究

石磊,林海,董颖博,陈京玉,连芳   

  1. 北京科技大学
  • 出版日期:2009-12-15 发布日期:2011-04-24

Flotation Test Research for a Primary Gold Ore of Shandong

Shi Lei,Lin Hai,Dong Yingbo,Chen Jingyu,Lian Fang     

  1. University of Science and Technology Beijing
  • Online:2009-12-15 Published:2011-04-24

摘要: 山东某金矿选矿厂以异戊基黄药+丁胺黑药为捕收剂,采用磨矿细度为-0.074 mm占60%的一粗二精二扫浮选工艺流程处理原生金矿石,金回收率仅59%左右。为此,着重对该矿石进行了浮选药剂条件和磨矿细度试验研究。试验结果表明:以BD-11为捕收剂、硫酸铜为活化剂、11号油为起泡剂,在-0.074 mm占60%的磨矿细度下,通过一粗一精一扫闭路浮选,可获得金品位为30.83 g/t,金回收率为93.36%的金精矿,与现场生产相比,金回收率得到了大幅度提高。

关键词: 原生金矿石, 浮选, 捕收剂BD-11, 金回收率

Abstract: The Isoamyl Xanthate and Butylamine Dithiophosphate are used together as collector in a Gold Beneficiation Plant of Shandong. And a flotation process of one roughing -two cleaning-two scavenging for gold ore with grinding of -0.074 mm 60% is adopted, only obtaining a gold recovery of about 59%. Thus, researches mainly focusing on the reagent condition tests and the grinding fineness tests were carried out. The tests results indicated that the gold concentrate with Fe grade of 30.83 g/t and Fe recovery of 93.36% was obtained by a closed-circuit flotation of one roughing-one cleaning-one scavenging with conditions of BD-11 as collectors, Copper Sulfate as an activator, 11# oil as the foaming agent, and the grinding fineness of -0.074 mm 60%. By this method, the gold recovery can be rapidly improved, compared with the on-site production.  

Key words: Gold ore, Flotation, BD-11collector, Gold recovery rate