Cathode pot of an aluminum reduction cell

Details Cathode pot of an aluminum reduction cell Cathode pot of an aluminum reduction cell

1983-07-06

1985-08-27

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204279, 204294, 373137, C25C 308, C25C 1700, C25B 1112

Patent

active

045376719

ABSTRACT:
A fused salt reduction cell for producing aluminum comprises a cathode pot having an outer steel shell supported on or by metal structural parts, a thermally insulating layer and an inner lining which is of carbon, is electrically conductive and is resistant to attack by the molten aluminum and the electrolyte.
In the region of the electrolyte there is a layer which runs horizontally around the cell dividing the carbon lining into a lower part and an upper part. This layer is of a material which is resistant to the electrolyte at temperatures up to 1000.degree. C. and has a much lower shear strength than that of the carbon lining.

REFERENCES:
patent: 3514520 (1970-05-01), Bacchiega et al.
patent: 4124476 (1978-11-01), Rapolthy
patent: 4322282 (1982-03-01), Jemec
patent: 4339316 (1982-07-01), Peterson et al.

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