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The possible reduction of alumina to aluminum using hydrogen

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Abstract

Theoretical considerations based on published thermodynamic data show that condensed aluminum should not be formed by direct reaction between hydrogen and alumina. Nevertheless, laboratory experiments by the authors and observations reported by others in the literature have led to the hypothesis that hydrogen dissolved in molten aluminum can possibly reduce alumina to aluminum at high temperature (700–1,700°C).

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Author information

Author notes

  1. Orvar Braaten (retired industrial metallurgist, visiting scientist)

    Present address: Department of Chemistry, the University of Oslo, USA

Authors and Affiliations

  1. the University of Oslo, USA

    Arne Kjekshus (professor in inorganic chemistry and materials science)

  2. Hydro Aluminium, USA

    Halvor Kvande (senior research scientist)

Authors
  1. Orvar Braaten
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  2. Arne Kjekshus
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  3. Halvor Kvande
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Additional information

For more information, contact H. Kvande, Hydro Aluminium, N-0246 Oslo, Norway; telephone 47 22 73 9155; fax 47 22 73 7778; e-mail Halvor.Kvande@hydro.com.

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Braaten, O., Kjekshus, A. & Kvande, H. The possible reduction of alumina to aluminum using hydrogen. JOM 52, 47–53 (2000). https://doi.org/10.1007/s11837-000-0047-7

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  • DOI: https://doi.org/10.1007/s11837-000-0047-7

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