Alcoa Debuts World’s First Low-Carbon Smelter-Grade Alumina

Alcoa Debuts World’s First Low-Carbon Smelter-Grade Alumina

American aluminium pioneer Alcoa Corporation announced last week an expansion of its low-carbon aluminium and alumina line Sustana.

Per the firm, the line would expand by adding the industry’s first low-carbon, smelter-grade alumina EcoSource. Measured through the mining and refining process, EcoSource emits half the carbon dioxide equivalents per ton of alumina than the industry’s average, or 0.6 tons of carbon dioxide equivalent per ton of refined aluminium.

Alcoa notes that it has the world’s largest third-party alumina business and features the market’s smallest carbon footprint. It also operates several facilities certified to Aluminium Stewardship Initiative (ASI) standards, from which at least part of this new product line will be sourced. Overall, Alcoa says its refineries have an average carbon emissions profile better than 90 percent of all alumina refineries currently in operation.

Alcoa President and CEO Roy Harvey elaborated on the various ways in which this new product offering stands apart.

“Alcoa’s line of Sustana products can provide advantages for customers who want to improve their environmental footprint. Our leadership in sustainability is represented with emissions measured throughout the process. Not all aluminum is created equally, and our mine-to-metal approach is a key differentiator for these products.”

EcoSource will join Alcoa’s other more sustainable product offerings, including EcoLum low-carbon aluminium that produces 3.5 times less carbon dioxide equivalents than the industry standard from mine through smelting. The firm also offers EcoDura, which is an aluminium product made with at least half recycled content. Alcoa offers low-carbon aluminium in billet, foundry, slab, unalloyed high purity, and P1020.