首页|Alumina Solubility in KF-AlF3 Based Low-Temperature Electrolyte System
Alumina Solubility in KF-AlF3 Based Low-Temperature Electrolyte System
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The solubility of alumina in a molten KF-AlF_3-based low-temperature electrolyte was determined as a function of the melt composition and temperature by measuring the weight loss of a rotating, sintered alumina disc and by using a LECO oxygen analyzer. The investigated temperature range was 650 to 800℃. The solubility of alumina increases with the mole ratio (CR), n°_(KF)/n°_(AlF3) from 0.9 mol% (CR=1.0) to 4.1 mol% Al_2O_3 (CR=1.5) at 700℃. The results suggest that a KF-AlF_3-Al_2O_3-based system can be used as a low-temperature electrolyte in primary aluminum production.
alumina solubilitylow-temperature electrolytealuminum production
Jianhong Yang、Donald G. Graczyk、Catherine Wunsch、John N. Hryn
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Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois, USA
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