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金属矿山 ›› 2007, Vol. 37 ›› Issue (10): 68-71+74.

• 矿物工程 • 上一篇    下一篇

辽宁某菱镁矿可选性研究

孙体昌1,王金良1,邹安华1,常亮2   

  1. 1.北京科技大学;2.辽宁群益集团
  • 出版日期:2007-10-15 发布日期:2012-02-28

Study on Beneficiability of A Magnesite Ore from Liaoning

Sun Tichang1,Wang Jinliang1,Zou Anhua1,Chang Liang2   

  1. 1.University of Science and Technology Beijing;2.LiaoNing Qunyi Group
  • Online:2007-10-15 Published:2012-02-28

摘要: 针对辽宁某菱镁矿石中主要杂质矿物是石英,且石英的嵌布粒度很细的特点,将矿石细磨到-200目占90%,以SE为捕收剂,在碱性条件下采用一次粗选一次精选的反浮选工艺流程,可以得到产率为73.31%,MgO品位为47.39%,SiO2含量为0.28%的菱镁矿精矿。

关键词: 菱镁矿, 反浮选, 降硅

Abstract: In view that the main gangue of a Liaoning magnesite ore is quartz that has a very fine dissemination size, a reverse flotation flowsheet with one rougher and one cleaner in alkaline medium was adopted. The flotation was carried out at a ground fineness of 90% -200 mesh using SE as the collector. A magnesite concentrate having a weight yield of 73.31%, an MgO grade of 47.39% and SiO2 content of 0.28% was obtained.

Key words: Magnesite, Reverse flotation, Silica reduction