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金属矿山 ›› 2009, Vol. 39 ›› Issue (09): 98-101.

• 矿物工程 • 上一篇    下一篇

某难选钼矿混合浮选试验研究

赵平1,2,邵伟华1,2,张艳娇1,2,刘广学1,2,常学勇1,2   

  1. 1.中国地质科学院郑州矿产综合利用研究所;2.国家非金属矿资源综合利用工程技术研究中心
  • 出版日期:2009-09-15 发布日期:2011-04-26

Experimental Study on the Bulk Flotation Process of Refractory Molybdenum Ore

Zhao Ping1,2,Shao Weihua1,2,Zhang Yanjiao1,2,Liu Guangxue1,2,Chang Xueyong1,2   

  1. 1.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS; 2.National Research Center of Multipurpose Utilization Engineering of Nonmetal Mineral Resources
  • Online:2009-09-15 Published:2011-04-26

摘要: 某钼矿因矿石氧化率高、含矿泥多,碳酸盐脉石矿物含量高,造成选矿难度较大。选矿试验采用硫化钼和氧化钼混合浮选全浮选流程,粗精矿浓缩后在高碱度下加温精选,精选精矿酸处理除去碳酸盐及其它酸溶脉石矿物,得到合格的钼精矿,试验指标为原矿钼品位0.17%,钼精矿品位45.65%,钼回收率70.68%。

关键词: 难选钼矿, 氧化矿, 混合浮选, 酸处理

Abstract: A molybdenum ore had a high content of slimes and carbonate gangue,leading to a great difficulty in its beneficiation.The beneficiation test for this ore adopted a whole flotation process,where modified sodium silicate was used as slime disperser and gangue depressor,lead nitrate as activator,kerosene and RT as collectors,and terpenic oil as frother.The bulk flotation of molybdenum sulfides and oxides was carried out as molybdenum roughing,and the rougher concentrate was then cleaned at heating and high alkaline medium,achieving good results.The molybdenum concentrate grading 30.78% at a 72.03% Mo recovery was obtained from a run-of-mine ore grading 0.17% Mo.

Key words: Refractory molybdenum ore, Oxidized ore, Bulk flotation process, Acid treatment