Research Status and Prospect of Vanadium Extraction from Vanadium Titano-magnetite

The process of vanadium extraction from vanadium-titanomagnetite was described systematically in this paper.The methods of direct vanadium extraction,vanadium extraction from vanadium slag and steel slag were mainly introduced.The advantages and disadvantages of various methods were analyzed and discussed.The new technologies of vanadium extraction were also discussed.Finally,it is pointed out that extraction of vanadium from vanadium slag by calcium method,clean extraction of vanadium by molten salts method and vanadium-chromium co-extraction by sulfuric acid method are the focus of future researches.The technology of preparing high purity vanadium oxide by chlorination has a good application prospect because of its short and clean process,as well as the high purity of products.Seeking clean process with short procedure,large-scale,low cost,high yield rate and no pollution becomes.The development direction of vanadium extraction from vanadium-titanomagnetite in the future.