Research Status and Prospect of Vanadium Extraction from Vanadium Titano-magnetite
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摘要: 系统阐述了钒钛磁铁矿提钒过程,主要介绍了直接提钒、钒渣提钒、钢渣提钒的方法,分析讨论了各种方法的优缺点,并对提钒新技术进行了探讨,最后指出:钒渣钙法提钒、亚熔盐清洁提钒、硫酸法钒铬共提是今后研究的重点;氯化法制备高纯氧化钒技术因流程短、过程清洁、产品纯度高,具有良好的应用前景;寻求短流程、规模化、低成本、收率高、无污染的清洁提钒工艺将是未来钒钛磁铁矿提钒的发展方向。Abstract: 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.
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