Modular cathodic block and cathode having a low voltage drop for

Details Modular cathodic block and cathode having a low voltage drop for Modular cathodic block and cathode having a low voltage drop for

1985-05-29

1986-08-12

Andrews, R. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204243R, 204290R, 204294, C25C 300

Patent

active

046054812

ABSTRACT:
The invention relates to a carbonaceous cathodic block having a low voltage drop, which is intended for tanks for the production of aluminium by electrolysis using the Hall-Heroult process, said tanks comprising a parallelepipedic metal casing supporting a cathode on which the layer of liquid aluminium is formed, said cathode being formed by the juxtaposition of parallelepipedic carbonaceous blocks of elongate shape wherein the ratio of the length of the major axis to the width is at least equal to two and in which there is cut at least one groove into which is sealed a steel bar which is disposed in parallel relationship to the short side of the casing and which connects to at least one cathodic collector, characterized in that the sealing grooves are cut in the direction perpendicular to the major axis of the block which is itself disposed in parallel relationship to the long side of the casing.

REFERENCES:
patent: 3764509 (1973-10-01), Etzel et al.
patent: 4076610 (1978-02-01), Bizzarri

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