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  • Figure 2. Demolition and removal of SPL from an aluminum cell cathode.

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    The SPL Waste Management Challenge in Primary Aluminum

    By Alton Tabereaux, Contributing Editor. Spent potlining (SPL) disposal is one of the largest environmental waste management challenges confronting worldwide primary aluminum smelters due to its toxicity. The International Aluminium Institute (IAI) asserts that 1.6 million tons of SPL were generated from primary aluminum production in 2019,1 making it the second largest waste volume produced […]

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    The Legacy of Spent Potliner – Cost or Opportunity?

    By Phil Black. The aluminum industry has an opportunity now to leave a lasting legacy of Spent Potliner (SPL) management that boosts the industry’s ongoing reputation for sustainability. Expensive Legacy Primary aluminum smelters have spent many millions on improved pot linings, squeezing the last available drop from the energy efficiencies in cathodes, ramming materials, and […]