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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Aluminum Waste Management and Utilization
Presentation Title Valorization of Treated Spent Potlining in Cement Industry
Author(s) Laurent Birry, Jean Lavoie, Victor Brial, Claudiane Ouellet-Plamondon, Hang Tran, Luca Sorelli, David Conciatori
On-Site Speaker (Planned) Laurent Birry
Abstract Scope Spent potlining (SPL) is a hazardous waste produced by aluminum smelters. It is classified as a hazardous waste because of its contamination with fluorides and cyanides and its reactivity with water, generating explosive gases. After the industrial and hydrometallurgical treatment by the Low Caustic Leaching and Liming (LCL&L) process, the refractory part of SPL becomes an inert non-hazardous material, called LCLL Ash. The cement industry is a major emitter of greenhouse gases. One of the best options for reducing the carbon footprint of concrete is the use of supplementary cementitious materials or filler to replace part of the cement in the concrete. This article presents the conditions for LCLL Ash to be a suitable and value-added material for cement industry. The results were obtained during the last 4 years R&D project at Ecole de Technologie Superieure (Montreal) and Laval University (Quebec), with support of Rio Tinto and Ciment Quebec.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum, Sustainability,


Aluminium Bahrain (Alba) SPL Sustainable Solution from Landfill to Valuable Feedstock “HiCal30”
Aluminum Recycling and Recovery of Other Components from Waste Tetra Pak Aseptic Packages
Current Status and Proposed Economic Incentives for Higher Utilization of Bauxite Residue to Enhance Sustainability of the Aluminum Industry
Recovery of Value Added Products from Bauxite Residue
Valorization of Treated Spent Potlining in Cement Industry

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