A METHOD FOR ELECTROLYTIC OBTAINING MAGNESIUM OF DEEPLY DEHYDRATED CHLORINE-MAGNESIUM RAW STOCK AND A FLOW LINE FOR REALIZING THEREOF

摘要

The invention relates to the non-ferrous metallurgy, and particularly magnesium production with electrolysis of melted salts, and has as objective to reduce the consumption of chlorine-magnesium raw stock and electric energy, man-hours, and also to raise industrial safety conditions. A method for electrolytic obtaining magnesium of deeply dehydrated chlorine-magnesium raw stock in the flow line involves raw stock loading in two-chamber main apparatus 1, mixing thereof with consumed electrolyte, melting and simultaneous electrochemical refining in the main apparatus 1 at the same current intensity that in electrolytic obtaining magnesium being performed in flow electrolyzers 2, which are serially switched to main bus 3. Obtained magnesium is separated of electrolyte in the separator 4, and a part of electrolyte is returned to the main apparatus 1. Magnesium and electrolyte are transferred on transport links 5. Electrochemical refining of chlorine-magnesium melt in the main apparatus 1 is performed by means of electrodes 6, being disposed in two series near lateral walls of mixing chamber perpendicularly to the longitudinal axis of apparatus 1 and switched to the main bus 3 serially to flow electrolyzers 2. Between series of electrodes 6 there is technological cell 8 with branch pipe for loading the raw stock 9. Electrodes of the main apparatus 1 are structurally joined in several groups with an opportunity of separate change of every group, and also of moving thereof along the longitudinal axis of apparatus 1 and besides they have water-cooling caissons. Between the main apparatus 1 and flow electrolyzers 2 there are disposed monopolar electrolyzers with upper input of anodes 7 being switched to the main bus 3 in series to flow electrolyzers 2, which may be multipolar electrolyzers.