METHOD AND REACTOR FOR PRODUCTION OF ALUMINUM BY CARBOTHERMIC REDUCTION OF ALUMINA

A hollow partition wall is employed to feed carbon material to an underflow of a carbothermic reduction furnace used to make aluminum. The partition wall divides a low temperature reaction zone where aluminum oxide is reacted with carbon to form aluminum carbide and a high temperature reaction zone...

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Bibliographische Detailangaben
Hauptverfasser: JOHANSEN KAI, AUNE JAN ARTHUR
Format: Patent
Sprache:eng
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Zusammenfassung:A hollow partition wall is employed to feed carbon material to an underflow of a carbothermic reduction furnace used to make aluminum. The partition wall divides a low temperature reaction zone where aluminum oxide is reacted with carbon to form aluminum carbide and a high temperature reaction zone where the aluminum carbide and remaining aluminum oxide are reacted to form aluminum and carbon monoxide.