Aluminum reduction cell electrode

Details Aluminum reduction cell electrode Aluminum reduction cell electrode

1981-04-06

1983-09-20

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204243R, 204297R, C25C 308, C25C 316

Patent

active

044054335

ABSTRACT:
The invention is directed to an anode-cathode structure for an electrolytic cell for the reduction of alumina wherein the structure is comprised of a carbon anode assembly which straddles a wedge-shaped refractory hard metal cathode assembly having steeply sloped cathodic surfaces, each cathodic surface being paired in essentially parallel planar relationship with an anode surface. The anode-cathode structure not only takes into account the structural weakness of refractory hard metal materials but also permits the changing of the RHM assembly during operation of the cell. Further, the anode-cathode structure enhances the removal of anode gas from the interpolar gap between the anode and cathode surfaces.

REFERENCES:
patent: 2423714 (1947-07-01), Leonard
patent: 3028324 (1962-04-01), Ransley
patent: 3067124 (1962-12-01), De Pava
patent: 3909375 (1975-09-01), Holliday et al.
patent: 3960678 (1976-06-01), Alder

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