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Metal Mine ›› 2011, Vol. 40 ›› Issue (07): 153-156.

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Study on the Comprehensive Recovery Process of Tailings from a Certain Iron Mine

Zhang Yahui,Shi Wei,Zhou Chao,Li Yan,Ji Tingting   

  1. School of Resources and Environmental Engineeering,Wuhan University of Technology
  • Online:2011-07-08 Published:2011-07-11

Abstract: The chemical composition of tailings sands with Fe 21.77%,Cu 0.20%,S 1.03% and the phase of main mineral were analyzed,and then a process of low intensity magnetic separation-high intensity magnetic separation-reduction roasting-low intensity magnetic separation-bulk flotation of copper and sulfur-separation of copper and sulfur is made to get Fe,Cu and S.Under the optimal technical conditions obtained from tests,iron concentrate with a yield of 20.39%,Fe grade of 61.62%,Fe recovery of 57.71%,copper concentrate with Cu grade of 14.57%,Cu recovery of 3.21%,and Sulfur concentrate with S grade of 38.21% and S recovery of 10.95% are achieved.The conclusion is that the recovery of iron minerals reaches remarkable economic benefits,but the recovery of copper and sulfide minerals are not ideal.

Key words: Tailings, Comprehensive utilization, Magnetic separation, Flotation