METHOD OF PRODUCTION OF MAGNESIUM AND CHLORINE FROM MAGNESIUM CHLORIDE SOLUTIONS CONTAINING AMMONIUM CHLORIDE

摘要

The method of production of magnesium and chlorine consists of the steps of: dehydrating a feedstock of chlorine-magnesium solution containing ammoni a compounds; separating anhydrous magnesium chloride therefrom; and electrolytically decomposing magnesium chloride, so as to produce magnesium and chlorine. In this method an initial chlorine-magnesium solution after decontamination is saturated with ammonium chloride and supplied to a fluidized bed dryer for direct production of substantially solid anhydrous ammonium carnallite with subsequent decomposition thereof to obtain anhydrous magnesi um chloride, ammonia and hydrogen chloride. Ammonia and hydrogen chloride are recirculated with exhaust gasses within the process, whereas anhydrous magnesium chloride is supplied to electrolytic cells for production of magnesium and chloride.