Electrolytes containing sodium cryolite, alumina and modifying agents have been developed for use in aluminum making.

The modified electrolytes:

• offer improved conductivity,

• are highly soluble and provide a high rate of alumina dissolution,

• allow conducting the electrolysis process at a high current density.

The electrolytes have been recommended for full-scale testing.

Commercial electrolytic cells of the OM-120 type have been tested at OAO KRAZ Company.

With the modified electrolytes it will be possible to

• improve technical and economic parameters of the aluminum making by the electrolytic method;

• increase the lifetime of electrolytic cells;

• improve environmental conditions at aluminum making enterprises.