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Mapping the Electronic Transference Number of Cryolitic Melts

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Abstract

Contrary to the ionic conductivity, the electronic conductivity of cryolitic melts, which can be up to 30 pct of the total conductivity in industrial electrolysis cells, remains largely unknown as very few experimental data are reported in the literature. The aim of this work is to fill this gap by providing reliable estimations of the electronic conductivity as a function of both cryolitic ratio and temperature in the range of interest for the aluminum production industry.

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This research was supported by funds from the Natural Sciences and Engineering Research Council of Canada (NSERC), Alcoa, Hydro Aluminum, Constellium, Rio Tinto Aluminum, and the FRQNT. Computations were made on clusters managed by Calcul-Québec and Compute Canada.

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  1. CRCT - Polytechnique Montréal, Chem. Eng, Box 6079, Station Downtown, Montreal, QC, H3C 3A7, Canada

    Aïmen E. Gheribi, Guillaume Rouaut & Patrice Chartrand

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  1. Aïmen E. Gheribi
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  2. Guillaume Rouaut
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Correspondence to Aïmen E. Gheribi.

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Manuscript submitted August 14, 2020, accepted 23 January, 2021.

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Gheribi, A.E., Rouaut, G. & Chartrand, P. Mapping the Electronic Transference Number of Cryolitic Melts. Metall Mater Trans B 52, 586–589 (2021). https://doi.org/10.1007/s11663-021-02093-x

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