Spent pot lining

Spent pot lining is the most common waste product generated by an aluminum smelter. It consists of the carbon and refractory lining that cover the bottom and sides of the electrolytic pots, and is extracted at the end of a pot’s useful life. The quantity of spent pot lining produced depends on the number of pots relined, which varies from year to year according to the life cycle of the pots.


Lower North American cement production as well as a change in recycling service supplier reduced our spent pot lining recycling capacity in 2013