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Metal Mine ›› 2011, Vol. 40 ›› Issue (04): 157-161.

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Beneficiation Experiments of Ore-washing Overflow of an India Hematite Ore

Wang Shibiao   

  1. Maanshan Iron & Steel Group Design and Research Institute Co., Ltd.
  • Online:2011-04-15 Published:2011-04-08

Abstract: In order to provide the basis for making use of  ore-washing overflow of India hematite with Fe grade of 50%, the beneficiation experiments on ore-washing overflow were carried out by the process of fine screening-high intensity magnetic separation-anionic reverse flotation and the process of fine screening -spiral chute -high intensity magnetic separation-anionic reverse flotation.The tests results showed that under grinding fineness of -0.076 mm 75%, the concentrate with Fe grade of 67.01% and 67.12%, and Fe recovery of 87.77% and 89.71% were obtained respectively by the two processes.Since the latter decreased the flotation process by about 1/3 comparing with the former, the latter process is recommended.

Key words: Hematite, ore-washing overflow, Sieve, Spiral chute, High intensity magnetic separation, Reverse flotation