Abstract
In the article the negative impact of titano-magnetite ore enrichment waste on the environment and the possibility of its use as vanadium-containing raw materials are overviewed. The chemical and mineralogical composition features of various samples of the Kusinsky deposit titanomagnetite ore tails are presented. Different combinations of their roasting processes (with and without salt additives, with oxides, carbonates, or their compositions) and leaching processes (with water or acid) during hydrometallurgical processing were analyzed.The experiment results on the extraction of vanadium in the form of soluble vanadates from the titanomagnetite ore tails by leaching from samples subjected to roasting with soda ash, sodium sulfate, calcium oxide, and sodium chloride in various mass ratios are presented. The significant influence of ore sample chemical composition on the vanadium extraction degree was revealed. It was revealed that for this type of vanadium raw material additives of sodium chloride and sodium carbonate are most preferable from the vanadium extraction degree point of view.
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