Electrochemical extraction of rare earth metals in molten fluorides: Conversion of rare earth oxides into rare earth fluorides using fluoride additives

In the present research on rare earth extraction from rare earth oxides (REOs), conversion of rare earth oxides into rare earth fluorides with fluoride fluxes is investigated in order to overcome the problem of low solubility of the rare earth oxides in molten fluoride salts as well as the formation of oxyfluorides in the fluorination process....