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Leaching process and kinetics of manganese in low-grade manganese ore

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Abstract

Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio (V/W) and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching conditions are, size of 0.054 mm, 120 minutes of reaction time, 3 (V/W) of liquid/solid ratio and 30% of the concentration of sulfuric acid (g/g). Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction.

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Authors and Affiliations

  1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China

    Chao Xie, Longjun Xu, Tiefeng Peng, Kun Chen & Jing Zhao

  2. School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China

    Chao Xie

  3. School of Chemical Engineering, University of Queensland, Brisbane, QLD, 4072, Australia

    Tiefeng Peng

  4. College of Safety Engineering, Chongqing University of Science and Technology, Chongqing, 400042, China

    Kun Chen

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  1. Chao Xie
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  2. Longjun Xu
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  3. Tiefeng Peng
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  4. Kun Chen
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  5. Jing Zhao
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Correspondence to Longjun Xu.

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Xie, C., Xu, L., Peng, T. et al. Leaching process and kinetics of manganese in low-grade manganese ore. Chin. J. Geochem. 32, 222–226 (2013). https://doi.org/10.1007/s11631-013-0625-3

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  • DOI: https://doi.org/10.1007/s11631-013-0625-3

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