Cathode for a cell for fused salt electrolysis

Details Cathode for a cell for fused salt electrolysis Cathode for a cell for fused salt electrolysis

1981-05-11

1983-03-15

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204288, 204289, 204291, 204292, 204294, 204 67, C25C 308, C25B 1102, C25B 1110

Patent

active

043766900

ABSTRACT:
A solid cathode in a fused salt electrolytic cell for the production of aluminum is made up of individually exchangeable elements (10). These cathode elements are made up of two parts which are rigidly joined together and which are resistant to thermal shock. The upper part (12) which projects from the molten electrolyte (30) into the precipitated aluminum (26), or the coating on this part (12), is made of a material which, at working temperature, is a good electrical conductor, is chemically resistant and is wet by aluminum. The lower part (14,16), which is exclusively in the liquid aluminum (26), or the coating on this part (14,16) is on the other hand made of an insulating material which can withstand molten aluminum.

REFERENCES:
patent: 4071420 (1978-01-01), Foster, Jr. et al.
patent: 4177128 (1979-12-01), Rahn
patent: 4231853 (1980-11-01), Rahn
patent: 4243502 (1981-01-01), Kugler

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