What are the advantages of cryolite in the electrolytic aluminum production industry

   Cryolite-Alumina Molten Salt Electrolysis is the only method of industrial aluminum smelting, and the cryolite as a solvent is irreplaceable in a short time. For a long time, aluminum electrolytic production using the molecular ratio of 2.1-2.3 ordinary molecules than the cryolite for the new slotted roasting start. In order to ensure that the new roasting can reach enough temperature, after the start to establish a high melting point, the regular furnace to help, in the cell slot and start to manually add a large number of solid soda ash to improve the electrolyte ratio; The addition of soda ash tends to cause local concentration of soda ash, which is detrimental to the cathodic adsorption of carbon cathode, which adversely affects the cathodic lining of the electrolytic cell; and the addition of soda ash will further increase the loss of cryolite and the labor intensity of workers, Harmful and pollute the environment. The use of polymer than the cryolite instead of ordinary cryolite for the start of the electrolyzer, can effectively avoid the above shortcomings.