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加纳某金矿石选矿试验研究

  • 单庆生|孙涛|王苹|赵福财
  • 作者单位:
  • 山东招金集团有限公司|山东招金集团有限公司|山东国环固废创新科技中心有限公司|山东国环固废创新科技中心有限公司
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 单庆生(1969—),男,工程师,从事选矿技术研究与管理工作;E-mail:sdytzysqs@163.com
  • 通讯作者:
  • isnull
  • PDF下载

Experimental research on mineral processing of a gold ore in Ghana

  • English Author:
  • Shandong Zhaojin Group Co.,Ltd.|Shandong Zhaojin Group Co.,Ltd.|Shandong Guohuan Solid Waste Innovation Technology Center Co.,Ltd.|Shandong Guohuan Solid Waste Innovation Technology Center Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

针对加纳某金矿石嵌布粒度较细、全泥氰化浸出过程中金浸出率较低等问题,对该金矿石开展浮选试验研究。研究结果表明:在磨矿细度-0.074 mm占85 %,矿浆pH值为6.5,矿浆浓度为35 %,捕收剂ZJ-01用量为100 g/t,起泡剂2号油用量为60 g/t,活化剂硫酸铜用量为100 g/t的条件下,经过一次粗选、两次扫选、两次精选的闭路浮选流程,获得的精矿产率为3.87 %、金品位为86.95 g/t、金回收率为91.15 %。试验指标良好,经济效益增加显著,为同类型矿山提供了技术依据。

关键词:

难处理金矿石;微细粒嵌布;硫化矿物包裹金;浮选试验;药剂制度

Abstract:

In response to the fine-grained dissemination and low gold extraction rate during the all-sliming cyanide leaching process of a gold ore in Ghana,an experimental study on the flotation of the ore was conducted,and the results indicated that a closed-circuit flotation process consisting of once roughing,twice scavenging,and twice cleaning steps achieved a gold concentrate yield of 3.87 %,a gold grade of 86.95 g/t,and a gold recovery rate of 91.15 % when the optimal flotation conditions were a grinding fineness of -0.074 mm accounting for 85 %,a slurry pH of 6.5,a slurry concentration of 35 %,a collector dosage of 100 g/t ZJ-01,a 2# oil frother dosage of 60 g/t,and an activator dosage of 100 g/t copper sulfate.The indicators were favorable,significantly improving the economic benefits.The study provides important technical support for similar mines.

Keywords:

refractory gold ore;fine-grained dissemination;sulfide-included gold;flotation experiment;reagent regime