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金属矿山 ›› 2009, Vol. 39 ›› Issue (05): 53-56.

• 矿物工程 • 上一篇    下一篇

某褐铁矿强磁选—反浮选试验研究

李凤久1,2,牛福生2,倪文1,吴根3,张晋霞2,刘淑贤2   

  1. 1. 北京科技大学;2.河北理工大学;3.科技部基础研究管理中心
  • 出版日期:2009-05-15 发布日期:2011-11-09
  • 基金资助:

    *  河北省重点基础资助项目(编号:08966710D),唐山市21项重大工程项目(编号:07130205A-1)。

Research on the HIMS-Reverse Flotation Process for a Limonite Ore

Li Fengjiu1,2,Niu Fusheng2,Ni Wen1,Wu Gen3,Zhang Jinxia2,Liu Shuxian2   

  1. 1.University of Science and Technology Beijing;2. Hebei Polytechnic University;3.The Ministry of Science & Technology Basic Research Service
  • Online:2009-05-15 Published:2011-11-09

摘要: 根据某褐铁矿的矿石性质,采用一段磨矿、强磁选—反浮选工艺流程,对该矿石进行了选矿试验。试验结果表明,在磨矿细度-0.074 mm占60.0%,一次强磁粗选,强磁精矿再选,强磁尾矿再进行二次扫选,强磁精矿再选尾矿和强磁尾矿再选精矿合并进行反浮选,反浮选尾矿返回强磁尾矿再选的闭路工艺流程,可获得产率52.24%,品位54.04%,回收率67.03%的强磁精矿和产率47.76%,品位29.08%,回收率32.97%的最终尾矿。

关键词: 褐铁矿, 强磁选, 反浮选

Abstract: The process consisting of one stage grinding-HIMS (high intensity magnetic separation)-reverse flotation was adopted for the beneficiation of a limonite ore according to its properties. The test results show that at a 60.0% -200 mesh grinding fineness, by a closed-circuit process of one rougher of HIMS,  a re-concentration of HIMS concentrate, two scavengers of HIMS tailings, reverse flotation of the tailings of re-concentration of HIMS concentrate and the concentrate of re-concentration of HIMS tailing, and reverse flotation tailing's returning to the re-concentration operation of HIMS tailings, an HIMS concentrate with a 52.24% yield, 54.04% grade and 67.03%recovery and a final tailing with a 47.76% yield, 29.08% grade and 32.97% recovery can be obtained.

Key words: Limonite, High intensity magnetic separation, Reverse flotation