ANODE EFFECT INITIATION DURING ALUMINIUM ELECTROLYSIS IN A TWOCOMPARTMENT LABORATORY CELL

摘要

Most laboratory cells used in the investigation of the aluminarnreduction process use a single anode. When investigating therninitiation of the anode effect an approach with more than onernanode might give better results, as the probability of obtainingrnpartial anode effect is higher. Additionally, the design is closer tornthe industrial, where several anodes are connected in parallel. Thernsystem constructed consisted of two anodes in separate electrolyterncompartments connected in parallel with a single combinedrncathode. The results indicate that an anode can go in and out ofrnpartial anode effect with little influence on the current, although,rnkept untreated a full anode effect is likely imminent. The resultsrnalso show that under certain current and alumina conditions, withrnonly two anodes in parallel, an anode can handle approximatelyrnthe whole load of a fully passivated anode for a certain time.