Experiments on Beneficiation Process of a Refractory Low-grade Limonite of Guizhou

Modern Mining ›› 2011, Vol. 27 ›› Issue (09): 14-16.

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Experiments on Beneficiation Process of a Refractory Low-grade Limonite of Guizhou

Yang Dabing^1,2，Cheng Jinjie¹，Lu Wei³，Tang Qinghua³

1. Wuhan University of Science and Technology；2. Wuhan University of Technology；3. Shousteel Shuicheng Iron and Steel Co., Ltd.

Online:2011-09-19 Published:2011-09-19

Abstract

Abstract: A certain low-grade limonite in Guizhou mainly exists in goethite, siderite and minor magnetite and pyrite, which belongs to the refractory iron ore. The conventional magnetic separation, flotation, magnetic roasting-low intensity magnetic separation can not reach the satisfactory indicators. A good index with Fe concentrate grade of 68.77% and recovery of 84.18% were obtained by the process of chloride reduction roasting-low intensity magnetic separation, which provides a new idea for the development and utilization of the minerals.

Key words: Low-grade limonite, Chloride reduction roasting, Iow intensity magnetic separation process, Magnetizing roast

YANG Da-Bing, SHEN Jin-Jie, LU Wei, TANG Qing-Hua. Experiments on Beneficiation Process of a Refractory Low-grade Limonite of Guizhou[J]. Modern Mining, 2011, 27(09): 14-16.

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