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Original scientific paper

Efficient extracting vanadium from stone coal by co-roasting with sodium chloride and biomass

G. Q. Liu ; School of civil engineering, University of science and technology, Liaoning, AnShan, China
K. Liu ; School of civil engineering, University of science and technology, Liaoning, AnShan, China
C. Y. Tang ; School of civil engineering, University of science and technology, Liaoning, AnShan, China
L. Cheng ; School of civil engineering, University of science and technology, Liaoning, AnShan, China


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Abstract

In this paper, biomass was selected to replace coal as additives during vana dium extraction. Roasting experiments were performed to characterize the effects of biomass on extracting vanadium of stone coal. The results indicated that kalium in biomass catalyzed the formation of potash feldspar but inhibited the generation of insoluble anorthite selectively, and effectively improved the vanadium leaching rate. The optimal roasting conditions were determined when 30 % biomass was added into stone coal, roasting at about 820 °C for 2 hours with 6 % sodium chloride. Under the optimal condition the vanadium leaching rate was 44,6 %.

Keywords

vanadium, extraction, stone coal, biomass, sodium roasting

Hrčak ID:

199233

URI

https://hrcak.srce.hr/199233

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