Reduction kinetics of oxide metal impurities during electrolysis of cryolite-alumina melts

A study was made on main kinetic regularities of the process of transition of CuO, NiO, TiO2, V2O5 impurities from electrolyte to cathode metal during electrolysis of cryolite-alumina melts. It is shown that kinetics of investigated process is governed by regularities of two-stage reaction. The reduction itself can take place both at metal-electrolyte interface and in electrolyte volume