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Metal Mine ›› 2012, Vol. 41 ›› Issue (05): 85-87.

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Research on Deep Reduction Magnetic Separation of A Xuanlong Oolitic Hematite Ore

Liu Hongzhao1,2,Cao Yaohua1,2,Gao Zhaoguo1,2   

  1. 1. Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS;2.China National Engineering Research Centre for Utilization of Industrial Minerals
  • Online:2012-05-22 Published:2012-05-29

Abstract: Deep reduction experiments for a Xuanlong oolitic hematite ore were discussed. The metallization rates and low intensity magnetic separation index under the influence of different reduction conditions, such as quantity of coal, particle size of row material, reduction time, reduction temperature, were studied. The microscopic analysis was conducted for reduction products achieved by different reduction temperature. The experiment results show: the metallization of reduction product was more than 97% by the optimum conditions. After one-stage grinding-low intensity magnetic separation 88.79% of iron concentrate grade was achieved, and the recovery of iron was 92.85%.

Key words: Oolitic hematite ore, Deep reduction, Metallization rate