Aluminium reduction cells

Details Aluminium reduction cells Aluminium reduction cells

1984-11-28

1986-09-23

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204291, C25C 308, C25C 316

Patent

active

046134182

ABSTRACT:
An aluminium reduction cell includes a potlining 16, which may be of alumina, with cathode current collectors 24, 32 embedded therein. The cell floor has an array of depressions 22 with at least one collector at the bottom of each depression. The depressions are filled with metal-wettable bodies 20, e.g. 5-20 mm diameter balls of titanium diboride, sized to prevent the entry of electrolyte or sludge. The depressions may be elongate in a direction perpendicular to the horizontal magnetic field in the cell.

REFERENCES:
patent: 3468786 (1969-09-01), Day
patent: 3607685 (1971-09-01), Johnson
patent: 3723287 (1973-03-01), Elliot
patent: 4338177 (1982-07-01), Withers et al.
patent: 4396481 (1983-08-01), Pawlek et al.
patent: 4498966 (1985-02-01), Tabereaux

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