Preparation and characterization of tungsten powder through molten salt electrolysis in a CaWO4-CaCl2-NaCl system

► Preparation of tungsten powder from CaWO4-CaCl2-NaCl system. ► Electrolysis products and process were analyzed by reasonable method. ► Low solubility of calcium tungstate in CaCl2-NaCl melt restricting the rate of electrolysis.