Study on the production of Fe-V alloy by the reduction of vanadium-enriched slag using aluminum dross

Yang Zhifei; Chen Min; Zhang Lingxi

doi:10.7513/j.issn.1004-7638.2024.02.003

Volume 45 Issue 2

Feb. 2024

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Yang Zhifei, Chen Min, Zhang Lingxi. Study on the production of Fe-V alloy by the reduction of vanadium-enriched slag using aluminum dross[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 13-19. doi: 10.7513/j.issn.1004-7638.2024.02.003

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Yang Zhifei, Chen Min, Zhang Lingxi. Study on the production of Fe-V alloy by the reduction of vanadium-enriched slag using aluminum dross[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 13-19. doi: 10.7513/j.issn.1004-7638.2024.02.003

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Study on the production of Fe-V alloy by the reduction of vanadium-enriched slag using aluminum dross

doi: 10.7513/j.issn.1004-7638.2024.02.003

School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

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Received Date: 2023-08-17
Available Online: 2024-04-30
Publish Date: 2024-04-30

Abstract

Abstract

In order to solve the problems of low valuable metal yield and high production cost in the process of ferrovanadium production, this paper proposed the use of aluminum ash as a reductant to directly reduce the vanadium-rich slag for the preparation of ferrovanadium alloys. The effect of different reduction conditions on the yield of valuable metal in the process of aluminum-ash reduction of vanadium-riched slag was studied. The results show that with the reduction temperature increasing from 1773 K to 1873 K, the yield of Fe increases from 51.8% to 95.6%, the yield of Mn increases from 16.7% to 84.2%, the yield of Cr increased from 2.5% to 87.9%, the yield of V increased from 0.5% to 91.8%. With the basicity increasing from 1.0 to 1.5, the yield of Fe, Cr, Mn and V increases from 72.5%, 51.7%, 35.8% and 11.4% to 95.6%, 84.2%, 87.9% and 91.8%, respectively. Under the optimal reduction conditions (the temperature of 1873 K, the basicity of 1.5, the reduction time of 30 min), the metal grades of Fe and V in the prepared vanadium ferroalloy are 28.18% and 35.01%, respectively, and the mass ratio of V/Fe in the alloy product is 1.24.
- ferrovanadium alloy,
- vanadium-enriched slag,
- aluminum dross,
- reduction,
- recovery rate

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References

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