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金属矿山 ›› 2010, Vol. 39 ›› Issue (04): 72-77.

• 矿物工程 • 上一篇    下一篇

四川壤塘锂多金属矿石选矿试验研究

 刘厚明1,2, 李成秀, 王昌良, 魏德洲, 毛益林   

  1. 1.东北大学;2.中国地质科学院矿产综合利用研究所
  • 出版日期:2010-04-15 发布日期:2010-11-09

Experimental Study on Comprehensive Recovery of Rangtang  Lithium-contained Complex Ore of Sichuan

 LIU  Hou-Ming, LI  Cheng-Xiu2, WANG  Chang-Liang2, WEI  De-Zhou1, MAO  Yi-Lin2   

  1. 1. Northeastern University;2.Institute of Multipurpose Utilization of Mineral Resources
  • Online:2010-04-15 Published:2010-11-09

摘要: 四川壤塘锂多金属矿石中主要有用矿物为锂辉石,具有综合回收价值的矿物为钽铁矿、铌铁矿和锡石。根据钽铌铁矿及锡石与锂辉石和脉石矿物的密度差异、钽铌铁矿与锡石的磁性差异以及锂辉石与脉石矿物的可浮性差异,采用分级重选—磁选—浮选联合工艺流程进行选矿试验,获得了锂精矿、钽铌精矿和锡精矿,使矿石中的有价元素得到了较好的综合回收。锂精矿Li2O品位为5.53%,Li2O回收率为72.68%;钽铌精矿Ta2O5和Nb2O5品位为17.00%和32.55%,Ta2O5和Nb2O5回收率为59.38%和66.05%;锡精矿锡品位为52.16%,锡回收率为80.00%。

关键词: 锂多金属矿石, 锂辉石, 锡石, 钽铁矿, 铌铁矿, 选矿

Abstract: The main valuable mineral is spodumene in Rangtang Lithium polymetallic ores of Sichuan. The recoverable minerals are tantalite,niobium and minerals. According to density differences of tantalum-niobium and cassiterite,and spodumene and gangue minerals,the magnetic properties differences of tantalum-niobite and cassiterite,and the floatability difference of spodumene and gangue minerals,the beneficiation process test consisting of the gravity separation-magnetic separation-flotation is adopted to get the tantalum,niobium and tin ore concentrates,so that all valuable elements in ores have been better recovered. The lithium concentrate with grade of 5.53% and recovery 72.68% is obtained; Meanwhile,the tantalum and niobium concentrates of Ta2O5 and Nb2O5 are grading at 17.00% and 32.55% with a 59.38% and 66.05% recovery respectively,and the tin concentrate is grading at 52.16% with a 99.14% recovery.

Key words: Lithium polymetallic ore, Spodumene, Cassiterite, Tantalite, Niobite, Mineral processing