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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Recycling and Sustainability Joint Session
Presentation Title Recycling of Aluminium Waste from Mixed Household Waste
Author(s) Sigvart Eggen, Kurt Sandaunet, Leiv K Kolbeinsen, Anne Kvithyld
On-Site Speaker (Planned) Anne Kvithyld
Abstract Scope Aluminium is used in packaging due to it’s density, strength and preservative capabilities. The paper outlines a methodology to evaluate the recyclability of aluminium waste, where parameters of scrap type, pre-treatment and remelting conditions are alternated with measurements of yield and analysis of metal quality. Aluminium waste from mixed household waste, Cans, will be presented in detail. Cans were decoated at 300C and 550C. The decoated material was then remelted, 4 additions of ∼ 2kg per experiment, by submersion into the molten melt. Porosity, inclusion content and alloy composition was analysed to determine metal quality. The experiments results show that yield of remelting, dross formation relative to melted sample material, and the chemical composition depend on decoating temperature. Cans is recyclable, with good quality and yield, with right treatment. The methodology is hopefully useful for evaluating effects of various process parameters in recycling of aluminium scrap.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Rapid Method of Determining Salt Flux Melting Point and Composition
An Assessment of Recyclability of Used Aluminium Coffee Capsules
Automatic Skimming Procedure for Reducing Aluminium Losses and Maintaining the Uniform Quality of the Molten Metal
Constellium R&D Approach in Recycling from Lab to Industrial Scale
Evaluation of the Effect of CO2 Cover Gas on the Rate of Oxidation of an AlMgSi Alloy
Fractional Solidification for Purification of Recycled Aluminium Alloys
Recycling of Aluminium Waste from Mixed Household Waste
Representative Sampling, Fractionation and Melting of Al-scrap

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