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Title: Inert Anode Life in Low Temperature Reduction Process

Technical Report ·
DOI:https://doi.org/10.2172/841153· OSTI ID:841153

The production of aluminum metal by low temperature electrolysis utilizing metal non-consumable anodes and ceramic cathodes was extensively investigated. Tests were performed with traditional sodium fluoride--aluminum fluoride composition electrolytes, potassium fluoride-- aluminum fluoride electrolytes, and potassium fluoride--sodium fluoride--aluminum fluoride electrolytes. All of the Essential First-Tier Requirements of the joint DOE-Aluminum Industry Inert Anode Road Map were achieved and those items yet to be resolved for commercialization of this technology were identified. Methods for the fabrication and welding of metal alloy anodes were developed and tested. The potential savings of energy and energy costs were determined and potential environmental benefits verified.

Research Organization:
Northwest Aluminum Technologies, The Dalles, Oregon
Sponsoring Organization:
USDOE Office of Industrial Technologies (OIT) (EE-20)
DOE Contract Number:
FC36-98ID13662
OSTI ID:
841153
Country of Publication:
United States
Language:
English