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A Critical Review of Technology for Selective Recovery of Vanadium from Leaching Solution in V2O5 Production

Ju-hua Zhang,Wei Zhang,Li Zhang,Song-qing Gu

In the V2O5 production process, purification of vanadium-bearing solution plays an important role in determining the quality of the final product. The choice of purification method depends on the vanadium species, aqueous media, and associated impurities. In this review, the recent research results for the separation and recovery of vanadium from leaching solution with solvent extraction, ion exchange, and chemical precipitation separation are presented. The effects of the main operational parameters on the efficiency of purification with these three methods are compared and discussed respectively, and several problems existing in these processes are proposed.