Gaseous Pre-reduction for the Magnetic Beneficiation of Ferruginous Low-grade Mn Ore

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概要

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• Because of intensive mining of high-grade manganese ores for a long time while leaving behind the low-grade ores, the utilization of the latter has become necessary. In this study, ferruginous low-grade manganese ore was selectively reduced by CO, which converted iron oxide to Fe3O4 while manganese oxide was reduced to MnO. The iron-rich component was then separated by magnetic separation. The effects of sample particle size and various reduction parameters on the efficiency of magnetic separation were studied. Under the optimum experimental conditions, the manganese content in the ore increased from around 36% to more than 44%, and almost 50% of iron was removed at a Mn loss of around 5%.

• 2012-05-15

著者

• Kim Hang

  Department Of Computer Engineering Kyungpook National University

• Sohn Hong

  Department Of Metallurgical Engineering University Of Utah

• KIM Chan

  Research Institute of Industrial Science & Technology (RIST)

• SOHN Hong

  Department of Metallurgical Engineering, University of Utah

• GAO Yubo

  Department of Metallurgical Engineering, University of Utah

• KIM Hang

  Department of Metallurgical Engineering, University of Utah

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