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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Primary Aluminum Industry - Energy and Emission Reductions: An LMD Symposium in Honor of Halvor Kvande
Presentation Title Ready-to-Use Cathodes in High Amperage Technologies
Author(s) Markus Pfeffer, Oscar Vera Garcia, Frank Hiltmann, Seweryn Mielnik, Peter Wang, Louis Bugnion, Laure von Kaenel, Mao Jihong, Ban Yungang
On-Site Speaker (Planned) Oscar Vera Garcia
Abstract Scope The implementation of Ready-to-Use Cathodes(RuC®) using copper conductors in the cathodic system not only allowed to fully avoid rodding but also significantly decreased the specific energy consumption, reducing the carbon footprint of the Hall-Héroult process. The basic concepts, the cathode implementation and the operating figures in smelting technologies ranging from 300kA to 600kA for up to 2.5years of operation are highlighted. The robustness of the Ready-to-Use design is proven by stable low cathodic resistance allowing energy savings in the range from 0.15 kWh to 0.40kWh per kg aluminum. An autopsy performed after 1140days of operation revealed a fully intact copper bar system. Copper samples were taken from the bars at different locations and chemically analyzed, concluding that most of the copper value can be recovered after its useful life through recycling processes. Based on these positive results, further spread of the Ready-to-Use Cathode technology is expected.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum,


A Historical Review of Aluminum Reduction Cell Start-up and Early Operation
Direct and Indirect CO2 Equivalent Emissions from Primary Aluminium Production
Gas Recycling and Energy Recovery. Future Handling of Flue Gas from Aluminium Electrolysis Cells
Halvor Kvande: An Academic Ambassador in Aluminum Between China and Norway
Ready-to-Use Cathodes in High Amperage Technologies
Reflections on the Low Voltage Anode Effect in Aluminium Electrolysis Cells
Sampling and Analysis Methodology Review to Report Total PFC Emissions
Scale Formation in Primary Aluminium Production
The TMS Industrial Aluminum Electrolysis Course – History, Development of Contents, and Future
Vaporization of Fluorides from Aluminium Cells. Part II: Treatment of Spent Potlining in a Laboratory Furnace
Vaporization of Fluorides from Aluminium Cells. Part I: Theoretical Study on Replacement of Aluminium Fluoride and Soda

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