FEATURES OF THE PROCESS OF OBTAINING FERROVANADIUM UNDER CONDITIONS OF ELECTROSLAG MELTING

1 KOSTETSKYI Yurii
Co-authors:
1 POLISHKO Ganna 1 PEDCHENKO Yevhen 1 PETRENKO Volodymyr 1 ZAITSEV Volodymyr
Institution:
1 E.O. Paton Electric Welding Institute of the NAS of Ukraine, Kyiv, Ukraine, y.kostetsky@paton.kiev.ua
Conference:
32nd International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 17 - 19, 2023
Proceedings:
Proceedings 32nd International Conference on Metallurgy and Materials
Pages:
69-77
ISBN:
978-80-88365-12-9
ISSN:
2694-9296
Published:
13th June 2023
Metrics:
246 views / 163 downloads
Abstract

The process of obtaining ferrovanadium by the electro-aluminothermic process has been studied. This process involves reducing vanadium oxide with aluminum in a slag layer in an electric furnace, using iron additions to achieve a desired alloy composition and lime to flux alumina. The electro-aluminothermic process is more controllable than the aluminothermic process. The chemical composition and viscosity of the slag play a critical role in the smelting results, which can be optimized by adjusting the charge composition and temperature. Is also important to achieve as complete separation of metal and slag as possible. By changing the composition of the charge, the electro-aluminothermic process allows producing ferroalloys ranging from 40 % to 80 % vanadium. An essential advantage of this process is relatively low equipment investment, simple raw material preparation requirements, and high product quality. Waste-free production can be implemented based on this process.

Keywords: Ferrovanadium, vanadium, electroaluminothermic reduction, electroslag process

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