Zherui Zhang, Tiantian Liu
As a strategically important metal, vanadium (V) plays a crucial role in resource security, and its efficient extraction is therefore of great significance. Traditional sodium roasting processes suffer from gaseous pollutant emissions and high costs, while calcification roasting–acid leaching has emerged as an alternative due to its environmental friendliness and economic viability. This study focuses on VTS (mainly composed of FeV2O4 and Fe2SiO4), systematically optimizing the calcification roasting–hydrochloric acid leaching process and investigating its reaction mechanism. By comparing the Gibbs free energy changes of reaction products and the acid leaching process with different additives using DFT calculations, calcium oxide was selected as the optimal calcifying agent. Experimental results show that CaO significantly promotes the transformation of FeV2O4 into soluble calcium vanadate and preferentially reacts with SiO2 to inhibit vanadate encapsulation, creating a structural basis for the selective dissolution of vanadium.
@article{fe57498c-0f54-4864-ae2f-45466ccdfa1e,
title={2026 Zhang Vanadium Recovery from V Ti Slag by Acid Leaching},
author={Zherui Zhang and Tiantian Liu},
year={2026},
language={en}
}TY - JOUR TI - 2026 Zhang Vanadium Recovery from V Ti Slag by Acid Leaching AU - Zherui Zhang AU - Tiantian Liu PY - 2026 LA - en ER -
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