The possible reduction of alumina to aluminum using hydrogen

The possible reduction of alumina to aluminum using hydrogen

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 tha...

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Veröffentlicht in:JOM (1989) 2000-02, Vol.52 (2), p.47-53
Hauptverfasser: Braaten, Orvar, Kjekshus, Arne, Kvande, Halvor
Format: Artikel
Sprache:eng
Schlagworte:
Alumina
Aluminum
Carbon
Casting
Experiments
High temperature
Hydrogen
Hypotheses
Laboratories
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Zusammenfassung: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 Al can possibly reduce alumina to Al at high temperature (700-1700 deg C).
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-000-0047-7