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| Pilot-scale Experiment for V2O5 Extracting from Stone Coal Vanadium Concentrate by Alkaline Process |
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Received:August 13, 2013
Revised:August 14, 2013
Accepted:August 15, 2013
Published Online:January 20, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.02.009 |
| KeyWord:stone coal vanadium concentrate; alkali leaching; purification; vanadium pentoxide; white carbon black |
| Author | Institution |
| LI Jie |
中南大学冶金与环境学院;湖南有色金属研究院 |
| LIU Xu-heng |
中南大学冶金与环境学院 |
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| Abstract: |
| The pilot-scale experiment to recover V2O5 from stone coal vanadium concentrate was performed with processes including granulation-roasting, alkali leaching, ion exchange, and decomposition. The results show that roasting rate of V2O5 is 99.50%, leaching rate is 84.49%, purification rate is 98.15%, ion exchange rate is 99.69%, decomposition rate is 98.85%, and overall recovery rate of V2O5 is 81.31%. The technological parameters of this pilot-scale experiment are stable and reliable. The products reach the standard of GB3283-87 V2O598, and SiO2 content in white carbon black is 96% above. |
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