Alumina reduction cell

Chemistry: electrical and wave energy – Apparatus – Electrolytic

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Details

204288, 204291, 204294, 204290R, C25C 308, C25C 704, C25C 702

Patent

active

046311211

ABSTRACT:
An improved alumina reduction cell is described in which the carbonaceous cathode includes refractory hard metal shapes projecting upwardly from the cell surface thereof, forming the true cathode surface, and permanently mounted and replaceable protective sleeves formed of inert refractory material surrounding the refractory hard metal shapes and protecting these shapes from accidental contact by the anode.

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patent: 4339316 (1982-07-01), Peterson et al.
patent: 4349427 (1982-09-01), Goodnow et al.
patent: 4436598 (1984-03-01), Tabereaux et al.
patent: 4460440 (1984-07-01), McGeer
patent: 4504366 (1985-03-01), Jarrett et al.
patent: 4532017 (1985-07-01), Keinborg et al.
patent: 4533452 (1985-08-01), Leroy et al.

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