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金属矿山 ›› 2017, Vol. 46 ›› Issue (05): 193-196.

• 综合利用 • 上一篇    下一篇

云南某含金银铅锌尾矿再选试验

甘恒,陈建华   

  1. 广西大学资源与冶金学院,广西 南宁 530004
  • 出版日期:2017-05-15 发布日期:2017-10-18
  • 基金资助:

    国家自然科学基金项目(编号:50864001),广西科学研究与技术开发计划重大专项(编号:桂科重1298002-4)。

Experiment on Reselection of a Au-Ag-Pb-Zn Tailings from Yunnan Province

Gan Heng,Chen Jianhua   

  1. School of Resources and Metallurgy,Guangxi University,Nanning 530004,China
  • Online:2017-05-15 Published:2017-10-18

摘要: 云南某含金银铅锌浮选尾矿中的主要有价元素为铅、锌、金、银,主要金属矿物为铁铅矾矿、铅矾、白铅矿、菱锌矿、硅锌矿、闪锌矿等,金主要为显微金,金、银的主要载体矿物为方铅矿。为确定该尾矿中有价元素的回收工艺,进行了浮选工艺研究。结果表明,试样在磨矿细度为-74 μm占83.60%的情况下,先经1粗2扫3精浮铅、再1粗2扫3精浮锌,最终获得了铅品位为41.82%、含金40.58 g/t、含银2 877.72 g/t、铅回收率为70.17%、金回收率为78.66%、银回收率为75.18%的铅精矿,以及锌品位为34.85%、含金1.92 g/t、含银183.17 g/t、锌回收率为87.47%、金回收率为13.47%、银回收率为17.28%的锌精矿。

关键词: 含金银铅锌尾矿, 综合回收, 载体矿物

Abstract: Main valuable elements of a gold,silver,lead and zinc flotation tailings in Yunnan are lead,zinc,gold and silver.Main metallic minerals are iron-lead-alumite,lead-alum,cerusite,bonamite,willemite,sphalerite,etc.Gold is mainly in microscopic gold form.Galena is the main carrier minerals of gold and silver.In order to determine the recovery process of valuable elements,flotation process was studied.Results show that when grinding fineness is -74 μm 83.6% and using one roughing three cleaning two scavenging lead preferential flotation,one roughing three cleaning two scavenging zinc flotation process,lead concentrate with 41.82% Pb,40.58 g/t Au,2 887.72 g/t Ag,recovery of 70.17% Pb,78.66% Au,75.18% Ag,zinc concentrate with 34.85% Zn,1.92 g/t Au,183.17 g/t Ag,recovery of 87.47% Zn,13.47% Au,17.28% Ag was obtained.

Key words: Au-Ag-Pb-Zn Tailing, Comprehensive recovery, Carrier mineral