Non-consumable anode and lining for aluminum electrolytic reduct

Details Non-consumable anode and lining for aluminum electrolytic reduct Non-consumable anode and lining for aluminum electrolytic reduct

1992-04-17

1994-02-08

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204244, 204245, 204293, 204292, C25C 308, C25C 312

Patent

active

052845621

ABSTRACT:
An oxidation resistant, non-consumable anode, for use in the electrolytic reduction of alumina to aluminum, has a composition comprising copper, nickel and iron. The anode is part of an electrolytic reduction cell comprising a vessel having an interior lined with metal which has the same composition as the anode. The electrolyte is preferably composed of a eutectic of AlF.sub.3 and either (a) NaF or (b) primarily NaF with some of the NaF replaced by an equivalent molar amount of KF or KF and LiF.

REFERENCES:
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patent: 4529494 (1985-07-01), Joo et al.
patent: 4620905 (1986-11-01), Tarcy et al.
patent: 4871438 (1989-10-01), Marschmann
patent: 4999097 (1991-03-01), Sadoway
patent: 5006209 (1991-04-01), Beck et al.
patent: 5069771 (1991-12-01), Nguyen et al.

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