Study of high-calcium vanadium slag with blank roasting carbonation leaching process

Wang Jun; Liu Shuang; Yan Beilei; Li Yulong; Zhu Xuejun; Deng Jun; Zeng Chenghua; Yang Tao; Chen Dandan; Zhang Yi

doi:10.7513/j.issn.1004-7638.2022.04.003

Volume 43 Issue 4

Sep. 2022

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Wang Jun, Liu Shuang, Yan Beilei, Li Yulong, Zhu Xuejun, Deng Jun, Zeng Chenghua, Yang Tao, Chen Dandan, Zhang Yi. Study of high-calcium vanadium slag with blank roasting carbonation leaching process[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 16-23. doi: 10.7513/j.issn.1004-7638.2022.04.003

Citation:

Wang Jun, Liu Shuang, Yan Beilei, Li Yulong, Zhu Xuejun, Deng Jun, Zeng Chenghua, Yang Tao, Chen Dandan, Zhang Yi. Study of high-calcium vanadium slag with blank roasting carbonation leaching process[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 16-23. doi: 10.7513/j.issn.1004-7638.2022.04.003

Citation:

Wang Jun, Liu Shuang, Yan Beilei, Li Yulong, Zhu Xuejun, Deng Jun, Zeng Chenghua, Yang Tao, Chen Dandan, Zhang Yi. Study of high-calcium vanadium slag with blank roasting carbonation leaching process[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 16-23. doi: 10.7513/j.issn.1004-7638.2022.04.003

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Study of high-calcium vanadium slag with blank roasting carbonation leaching process

doi: 10.7513/j.issn.1004-7638.2022.04.003

1.
College of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China
2.
Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Zigong 643033, Sichuan, China
3.
Sichuan Provincial Key Laboratory of Process Equipment and Control, Zigong 643033, Sichuan, China

Received Date: 2022-05-17
Publish Date: 2022-09-14

Abstract

Abstract

In view of the high-calcium content of high calcium and high-phosphorus vanadium slag and the existing vanadium extraction process difficult to effectively extract vanadium, blank roasting-carbonation leaching process is investigated, and the response surface method is used for optimization. The effects of CaO/V₂O₅ mass ratio, roasting temperature, roasting time, leaching stirring speed, leaching temperature, leaching time and sodium carbonate solution concentration on the leaching rate of vanadium from high-calcium vanadium slag were investigated. The results show that the average vanadium leaching rate is 92.22% when the mass ratio of CaO/V₂O₅ in vanadium slag is 0.6, calcination at 899 ℃ for 160 min, clinker leaching temperature at 95℃, leaching time of 140 min, sodium carbonate concentration of 168 g/L and stirring speed of 300 r/min. Compared with the traditional vanadium extraction process, the blank roasting-carbonation leaching process has the advantage of high vanadium leaching rate for high-calcium vanadium slag.
- high-calcium vanadium slag,
- blank roasting,
- carbonation leaching,
- response surface methodology,
- leaching rate

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References(24)

References

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