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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology Across the Decades: An LMD Symposium Honoring Alton T. Tabereaux and Harald A. Øye
Presentation Title Establishing a Chemical Model of the Melt in the Cathode
Author(s) Lorentz Petter Lossius, Harald Arnljot Øye
On-Site Speaker (Planned) Lorentz Petter Lossius
Abstract Scope From 1990 Harald A. Øye supervised work to establish a model of the chemistry of the catholyte, the electrolyte in the carbon cathode during start-up and operation of Hall Héroult cells for both semi-graphitic and graphitic blocks. First part, lab scale, P. Brilliot tested a range of carbon materials and electrolyte compositions, running electrolysis for less than one hour to a few days. After, the cathode with frozen melt was cross sectioned and XRD showed the sequential change from electrolyte to catholyte. Full scale, Lorentz Petter Lossius collected cores from cathodes from cells stopped after 10 days to 2700 days. The results and understanding from the lab scale work could then be extrapolated and modified to the chemical processes occurring through the life-time of the cells. The paper recounts key analytical experiences than and today, and presents the set of chemical equations and associated thermodynamics.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Alton Tabereaux: A Humble Individual Who Dedicates His Lifetime to Aluminum - An Aluminum Legend of Our Time
Application and Adaptability of MHD Stability Computation for Modern Aluminium Reduction Cells at Extreme Conditions of Low ACD
Awakening of the Aluminum Industry to PFC Emissions and Global Warming
Establishing a Chemical Model of the Melt in the Cathode
Forty Years of Cathode Block Evolution at EGA
Forty Years of Trondheim International Course on Process Metallurgy of Aluminium
Heating New Anodes Using the Waste Heat of Anode Butts Establishing the Interface Thermal Contact Resistance
History of Computer Control of Aluminum Reduction Cells
In Line Cell Position and Anode Change Effects on the Alumina Dissolution
Introductory Comments: Aluminum Reduction Technology Across the Decades: An LMD Symposium Honoring Alton T. Tabereaux and Harald A. Øye
Introductory Comments: Aluminum Reduction Technology Across the Decades: An LMD Symposium Honoring Alton T. Tabereaux and Harald A. Øye
Investigation of Cyclic Process Variations within Hall-Héroult Reduction Cells
Wetting of Carbon Cathodes by Molten Electrolyte and Aluminium

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