Cathode for a hall-heroult type electrolytic cell for producing aluminum
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United States of America Patent
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Apr 13, 2004
Grant Date -
Oct 23, 2003
app pub date -
Apr 22, 2002
filing date -
Apr 22, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing aluminum from alumina in an electrolytic cell including using a cathode comprised of a base material having low electrical conductivity and wettable with molten aluminum to form a reaction layer having a high electrical conductivity on said base layer and a cathode bar extending from said reaction layer through said base material to conduct electrical current from said reaction layer.
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