Aluminum smelting cells

Details Aluminum smelting cells Aluminum smelting cells

1990-02-20

1991-08-27

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

704243R, C25C 306, C25C 300

Patent

active

050430475

ABSTRACT:
An aluminum smelting cell comprising a cathode having an active upper surface, a plurality of anodes each having a lower surface spaced from the upper surface of the cathode, said cathode upper surface being sloped at an acute angle in a primary or longitudinal direction of each anode, and being formed with pairs of oppositely sloped surfaces extending in a transverse or secondary direction under each anode to cause complementary shaping of the lower anode surfaces to reduce the migration of bubbles between the anode and cathode along the anode surfaces in said primary or longitudinal direction to thereby reduce the path length of said bubbles whereby the turbulence caused by coalesced bubble disengagement from the bath electrolyte is significantly reduced while maintaining adequate bath circulation between the anode and cathode.

REFERENCES:
patent: 3067124 (1962-12-01), Pava
patent: 3501386 (1970-03-01), Johnson
patent: 4333813 (1982-06-01), Kaplan et al.
patent: 4405433 (1983-09-01), Payne
patent: 4602990 (1986-07-01), Boxall et al.

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