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金属矿山 ›› 2016, Vol. 45 ›› Issue (02): 87-90.

• 矿物工程 • 上一篇    下一篇

内蒙古某铜锡硫化矿石选矿试验

袁帅1,刘杰1,李艳军1,张淑敏1,王志远2   

  1. 1.东北大学资源与土木工程学院,辽宁 沈阳 110819;2.赤峰大井子矿业有限公司,内蒙古 赤峰 025250
  • 出版日期:2016-02-15 发布日期:2016-03-11
  • 基金资助:

    * 国家自然科学基金项目(编号:51204035)。

Separation Experiment of Cu-Sn Sulfide Ore from Inner Mongolia

Yuan Shuai1,Liu Jie1,Li Yanjun1,Zhang Shumin1,Wang Zhiyuan2   

  1. 1.College of Resource and Civil Engineering,Northeastern University,Shenyang 110819,China;2.Chifeng Dajingzi Mining Industry Co.,Ltd.,Chifeng 025250,China
  • Online:2016-02-15 Published:2016-03-11

摘要: 内蒙古某铜锡多金属矿石铜品位为1.05%、锡品位为0.47%,主要杂质成分SiO2含量达62.31%。矿石中含铜矿物黄铜矿主要以不规则状存在于石英等脉石矿物中;锡石主要以自形—半自形粒状产出,粒间有黄铜矿等矿物交代。为给该矿石的开发利用提供依据,对其进行了选矿试验研究。结果表明:在磨矿细度为-0.074 mm占75%时,以Y150为铜粗选捕收剂、D300为铜扫选捕收剂、2号油为起泡剂,经1粗2扫浮选可获得铜品位为3.12%、回收率为97.06%的铜粗精矿;铜粗精矿经4次精选2次精扫选,获得的铜精矿铜品位为16.30%、回收率为92.14%;浮铜尾矿经摇床1次重选,可获得锡品位为8.67%、回收率为75.91%锡精矿。

关键词: 铜锡多金属硫化矿石, 黄铜矿, 锡石, 浮选, 重选

Abstract: The mineral composition of Cu-Sn polymetallic ore from Inner Mongolia is complex,with 1.05% copper and 0.47% tin,the main impurity components SiO2 was up to 62.31%.Chalcopyrite,the mainly copper mineral,mainly exists in quartz gangue minerals as irregular shape,the cassiterite exists mainly in hypidiomorphic-allotriomorphic structure,intergranular with chalcopyrite and other minerals.To provide technique basis for the utilization of the ore,separation experiment research was carried on.The results show that:copper rough concentrate can be obtained at the grinding fineness of 75% passing 0.074 mm,with Y150 as rough flotation collector,D300 as scavenging flotation collector,2# oil as foaming agent,through one roughing-two scavenging flotation process,rough concentrate with copper grade of 3.12%,recovery of 97.06% was obtained,rough concentrate via four cleaning,two scavenging process,copper concentrate with copper grade of 16.30%,copper recovery of 92.14% can be obtained,tailings of copper flotation via one stage gravity separation by shaking table,tin concentrate with tin grade of 8.67% and recovery of 74.91% was obtained.

Key words: Cu-Sn polymetallic sulfide ore, Chalcopyrite, Cassiterite, Flotation, Gravity separation