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Metal Mine ›› 2011, Vol. 40 ›› Issue (09): 156-159+163.

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Reducing Roasting and a Synchronized Desulfurization to Low Intensity Magnetic Concentrate of Sulphur Tailings

Sun Hao1,2,Sun Tichang1,2,Liu Zhanhua1,2   

  1. 1.Key Laboratory of the Ministry of Education of China for High-efficient Ming and Safety of Metal Mines;2.Civil and Environmental Engineering School,University of Science and Technology Beijing
  • Online:2011-09-13 Published:2011-09-19

Abstract: With an Inner Mongolia low intensity magnetic concentrate of suiphur tailings as the sample,testing the add flux direct reduction roasting-magnetic separation.The effects of type and dosage of reducing agent,flux type and dosage,baking temperature,baking time factors on the direct reduced iron products were investigated.The results show that the combination of anthracite and CCD has a great influence on dropping sulfur effect,which can get iron grade of 93.57%,iron recovery of 70.42% and sulfur content of 0.12% for the direct reduced iron products; The combination of Huimin coal and SH has an outstanding effect on iron effect ,which can get iron grade of 94.62%,iron recovery of 82.01% and sulfur content of 0.39% for the direct reduced iron products.

Key words: Low intensity magnetic concentrate of suiphur tailings, Anthracite, Direct reduction roasting, Flux