The role of electrode quality in metal purity

Abstract

Anode quality excursions are well known as factors that can have substantial impact upon metal purity and the ability to produce specific metal products. But, there is more to managing anode quality, as delivered to the pot rooms, than avoiding a major excursion. In this paper the author reviews the key factors from the paste plant through the rodding shop that affect the amount of impurities that are delivered to the metal. Conclusions include a summary of sub-process and design activities that can be managed to minimize the impact of impurities to primary metal production.