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Extraction of Vanadium from Stone Coal by Microwave Assisted Sulfation Roasting

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Abstract

The extraction of vanadium from stone coal was investigated by microwave-assisted sulfation roasting followed by water leaching. The results showed that this process is an effective method for the extraction of vanadium from stone coal. Microwave-assisted sulfation roasting promotes the reaction of sulfuric acid with vanadium oxides and decreases roasting time. Under optimized conditions (roasting temperature 200°C, heating rate of 10°C/min, 25% sulfuric acid addition, water leaching at 75°C for 1 h, and liquid/solid ratio of 1.5 ml/g), the leaching rate of vanadium reached 92.6%.

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Acknowledgments

This study was financially supported by the National Natural Science Foundation of China (No. 51104186) and the China National Scholarship Fund.

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Authors and Affiliations

  1. School of Metallurgy and Environment, Central South University, Changsha, 410083, China

    Mingyu Wang, Pengfei **an & Xuewen Wang

  2. Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI, 49931, USA

    Bowen Li

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  1. Mingyu Wang
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  2. Pengfei **an
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  3. Xuewen Wang
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  4. Bowen Li
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Correspondence to Mingyu Wang.

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Wang, M., **an, P., Wang, X. et al. Extraction of Vanadium from Stone Coal by Microwave Assisted Sulfation Roasting. JOM 67, 369–374 (2015). https://doi.org/10.1007/s11837-014-1215-5

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  • DOI: https://doi.org/10.1007/s11837-014-1215-5

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