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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Recycling and Sustainability Joint Session
Presentation Title Recycling of Oxide from Dross into Aluminum Electrolysis Cells
Author(s) Martin Syvertsen, Bjarte ye
On-Site Speaker (Planned) Martin Syvertsen
Abstract Scope Today aluminium dross is normally recycled by melting it in a gas fired rotary furnace. Salt is partly used for protection against oxidation of aluminium metal and partly to enhance agglomeration of molten aluminium drops by breaking the oxide layers between them. The separated aluminium metal is then either retuned to the supplier of the dross, or sold to another costumer. The oxide on the other hand is mixed with salt and has to be further processed before sold as a low grade oxide. This paper describes how aluminum metal and oxide is separated in a plasma heated rotary furnace without the use of salt. The oxide has been characterized with respect to chemical purity physical properties, and has been tested for use in the electrolysis cells. The results show that addition of oxide form dross does not affect the cells performance significantly.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Behavior of Mg-Si-rich Phases in Aluminum Can Sheets and Their Impact on Metal Oxidation during Industrial Thermal Pre-treatment
Dissipative Use of Critical Metals in the Aluminum Industry
Environmental Impacts of Aluminum Dross after Metal Extraction
In-situ Observation of Dross Formation during Melting of Al-Mg Alloy
Potential for Handheld Analyzer to Address Emerging Positive Material Identification (PMI) Challenges
Precious Technology; Recycling of Titanium from Medical Implant Industry, Challenges and Opportunities
Promotion of Separation of Two Phase Liquid Metals by Applying Mechanical Vibration
Recycling of Oxide from Dross into Aluminum Electrolysis Cells
The Implementation of a Comprehensive Dross Management Program at Constellium Ravenswood

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