Discussion on low voltage process technology of prebaked aluminium reduction pot in complex bath system

Technical economic indexes of 200kA pots with ordinary cathodes in one domestic smelter were not good several years before due to complex bath compositions by using alumina from different plants for a long time.Low voltage and matched technology had been searched in five sections using powdery alumina since Aug.2009.After a year of practice,main technical economic indexes have made obviously improved comparing with indexes in 2008.