Metallurgy, Vol. 57 No. 3, 2018.
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
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
Publication date:
2.7.2018.
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