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金属矿山 ›› 2017, Vol. 46 ›› Issue (06): 109-112.

• 矿物工程 • 上一篇    下一篇

江西某低品位锂辉石矿选矿试验

温胜来1,2,3,王玲珑4,范林青4   

  1. 1.中钢集团马鞍山矿山研究院有限公司,安徽 马鞍山243000;2.金属矿山安全与健康国家重点实验室,安徽 马鞍山 243000;3.华唯金属矿产资源高效循环利用国家工程研究中心,安徽 马鞍山 243000;4.宜春钽铌矿,江西 宜春 336000
  • 出版日期:2017-06-15 发布日期:2017-09-27

Beneficiation Experiment on a Low Grade Spodumene Ore from Jiangxi

Wen Shenglai1,2,3,Wang Linglong4,Fan Linqing4   

  1. 1.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.,Maanshan 243000,China;2.State Key Laboratory of Safety and Health for Metal Mine,Maanshan 243000,China;3.National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co.,Ltd.,Maanshan 243000,China;4.Yichun Tantalum Niobium Mine,Tichun 336000,China
  • Online:2017-06-15 Published:2017-09-27

摘要: 针对江西某低品位锂辉石矿矿泥含量高、现场浮选指标差等问题,进行了选矿试验研究。结果表明:将450 g/t碳酸钠+300 g/t氢氧化钠加入磨机中,矿石磨细至-0.076 mm占70%,脱去-0.15 mm粒级矿泥,以碳酸钠、氢氧化钠、氯化钙作联合调整剂、改性油酸作捕收剂,经1粗3精1扫闭路浮选,可获得Li2O品位为4.45%、回收率为74.17%的锂辉石精矿,精矿Li2O品位较现场工艺提高了0.39个百分点,回收率提高了12.59个百分点;锂辉石浮选尾矿经弱磁选—高梯度强磁选除铁,获得了Fe2O3含量为0.18%的长石精矿。

关键词: 锂辉石矿, 改性油酸, 脱泥, 磁选

Abstract: Beneficiation experiments were carried out,aiming at problems of high content of mud and bad flotation index of low grade spodumene ore from Jiangxi Province.Results show that with 300 g/t sodium carbonate + 450 g/t t sodium hydroxide adding in grinding mill,at grinding fineness of 0.076 mm accounted for 70%,-0.15 mm grade fraction deslimed,then with sodium carbonate,sodium hydroxide,calcium chloride as unite adjusting agent,modification oleic acid as collector via one roughing-three cleaning-one scavenging closed circuit flotation process,spodumene concentrate with Li2O grade of 4.45% and recovery of 74.17% was obtained,Li2O grade increased by 0.39 percentage points,recovery increased by 12.59 percentage points compared with on-site process;tailings of spodumene flotation via low intensity magnetic separation-high gradient high intensity magnetic separation,feldspar concentrate with Fe2O3 grade of 0.18% was obtained.

Key words: Spodumene ore, Modified oleinic acid, Desliming, Magnetic separation