Process and device for the production of aluminium by the electr

Details Process and device for the production of aluminium by the electr Process and device for the production of aluminium by the electr

1977-04-28

1978-08-29

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

204243R, C25C 308, C25C 306

Patent

active

041101790

ABSTRACT:
The magnitude of the horizontal components of electrical current flowing through the aluminium on the cathode blocks of an electrolytic reduction cell are reduced by ensuring that the current transmitted decreases towards the edge of the electrolytic cell. This is achieved by making the contact resistance between the carbon lining and the cathode bars embedded in the carbon cathode blocks increase towards the edge of the cell. The result is that the tendency for the melt to bulge upwards and the stirring action in the electrolyte are considerably reduced.

REFERENCES:
patent: 2786024 (1957-03-01), Wleugel
patent: 2824057 (1958-02-01), Thayer
patent: 3960696 (1976-06-01), Witner

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