Electrolysis of a molten charge using incomsumable electrodes

Details Electrolysis of a molten charge using incomsumable electrodes Electrolysis of a molten charge using incomsumable electrodes

1974-05-15

1976-06-01

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204243R, 204245, 204246, 204284, 204290R, 204291, 106 395, C25C 306, C25C 312, C05B 3500

Patent

active

039606783

ABSTRACT:
Process for operating a cell for the electrolysis of a molten charge, in particular aluminum oxide, with one or more anodes, the working surfaces of which are of ceramic oxide material, and anode for carrying out the process.
In the process a current density above a minimum value is maintained over the whole anode surface which comes into contact with the molten electrolyte. An anode for carrying out the process is provided at least in the region of the interface between electrolyte and surrounding atmosphere, the three phase zone, with a protective ring of electrically insulating material which is resistant to attack by the electrolyte. The anode may be fitted with a current distributor for attaining a better current distribution.

REFERENCES:
patent: 3428545 (1969-02-01), Johnson
patent: 3459515 (1969-08-01), Bergmann
patent: 3718550 (1973-02-01), Klein
patent: 3814699 (1974-06-01), Baldieri et al.
patent: 3829374 (1974-08-01), Kugler et al.

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