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Rare Metal Technology 2017 pp 235–246Cite as

Preparation of Molybdenum Powder from Molybdenite Concentrate Through Vacuum Decomposition-Acid Leaching Combination Process

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

A novel process that the combination of vacuum decomposition and acid leaching was proposed. The influence of distillation times, diameter and thickness of the feeding material on the mass fraction of Molybdenum (Mo) and sulphur (S) in residual was investigated. The influence of leaching temperature, leaching time, concentration of hydrochloric acid solution, and ratio of liquid to solid on leaching rates of Mo and S in acid leaching process was also investigated. Due to the fact that SO2 emission happening in the long process of traditional molybdenum metallurgy could be avoided in this novel method, this combination process was environmentally-friendly. Molybdenum powder was obtained through handling molybdenite concentrate under the optimal condition parameters, and the mass fraction of Mo reached 98.29 wt%. So it’s feasible to produce molybdenum powder from molybdenite concentrate by using this new method.

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Acknowledgements

The authors acknowledge the financial support from National Natural Science Foundation of China (NO. U1202271), the Program for Innovative Research Team in University of Ministry of Education of China (NO. IRT1250), and the Program for Innovative Research Team in Nonferrous Metal Vacuum Metallurgy of Ministry of Science and Technology (Grant No. 2014RA4018), and the Cultivating Plan Program for the Technological Leading Talents of Yunnan Province (2014HA003).

Author information

Authors and Affiliations

  1. The National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China

    Chongfang Yang, Yuezhen Zhou, Dachun Liu, Wenlong Jiang, Fansong Liu & Zewei Liu

  2. Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province, Kunming, 650093, People’s Republic of China

    Chongfang Yang, Yuezhen Zhou, Dachun Liu, Wenlong Jiang, Fansong Liu & Zewei Liu

  3. State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming, 650093, People’s Republic of China

    Dachun Liu & Wenlong Jiang

Authors
  1. Chongfang Yang
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  2. Yuezhen Zhou
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  3. Dachun Liu
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  4. Wenlong Jiang
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  5. Fansong Liu
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  6. Zewei Liu
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Corresponding author

Correspondence to Wenlong Jiang .

Editor information

Editors and Affiliations

  1. Pennsylvania State University , University Park, Pennsylvania, USA

    Hojong Kim

  2. The University of Saskatchewan , Saskatoon, Saskatchewan, Canada

    Shafiq Alam

  3. IND LLC , South Jordan, Utah, USA

    Neale R. Neelameggham

  4. Umicore , Olen, Belgium

    Harald Oosterhof

  5. MIT , Cambridge, Massachusetts, USA

    Takanari Ouchi

  6. WATERTOWN, Massachusetts, USA

    Xiaofei Guan

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© 2017 The Minerals, Metals & Materials Society

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Yang, C., Zhou, Y., Liu, D., Jiang, W., Liu, F., Liu, Z. (2017). Preparation of Molybdenum Powder from Molybdenite Concentrate Through Vacuum Decomposition-Acid Leaching Combination Process. In: Kim, H., Alam, S., Neelameggham, N., Oosterhof, H., Ouchi, T., Guan, X. (eds) Rare Metal Technology 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51085-9_25

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