Research on Smelting Vanadium Steel by Silicothermic Reduction Direct Alloying with V2O5

Wei Xiang Wang; Zheng Liang Xue; Sheng Qiang Song; Ping Li; Zhi Chao Chen

doi:10.4028/www.scientific.net/AMR.476-478.164

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 476-478Research on Smelting Vanadium Steel by...

Research on Smelting Vanadium Steel by Silicothermic Reduction Direct Alloying with V₂O₅

Abstract:

The basic thermodynamic analysis of silicothermic reduction during direct alloying to smelting vanadium steel with V₂O₅ was discussed in this paper. The high-temperature carbon tube furnace and medium frequency vacuum induction furnace were used to study the phase compositions of the reduction products and the change law of the yield of vanadium when V₂O₅ was reduced by ferrosilicon. The research shows that the main phases of the silicothermic reduction products were VSi₂、FeVO₄ and Ca₂SiO₄ under the condition of using CaO to restrain the volatile of V₂O₅. Yield of vanadium was gradually improved with the increase of ferrosilicon during the direct alloying. The yield of vanadium in the steel is as high as 95.25% when the addition of ferrosilicon is 35%.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

164-169

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.164

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Online since:

February 2012

Authors:

Wei Xiang Wang, Zheng Liang Xue, Sheng Qiang Song, Ping Li, Zhi Chao Chen

Keywords:

Direct Alloying, Silicothermic Reduction, V₂O₅, Yield of Vanadium

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