Distribution of Impurities during Vanadium Electrorefining and Determination of Optimal Conditions of the Process

The process of vanadium electrolytic refining in NaCl-KCl melt was performed in the specially designed semi-industrial scale electrolyser. The method of experiments mathematic planning was used to determine the electrolysis optimal conditions. In a special series of industrial experiments distribution of metallic and non-metallic impurities during vanadium electrorefining was investigated. The optimal parameters of the electrolysis for producing 99.5% pure vanadium were determined and the requirements for purity of crude materials formulated.