Electrolytic reduction cells for aluminium production

Details Electrolytic reduction cells for aluminium production Electrolytic reduction cells for aluminium production

1985-09-12

1986-06-03

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204290R, 204294, 204274, C25C 308, C25B 1112

Patent

active

045928207

ABSTRACT:
In conventional electrolytic cells for aluminium production, heat loss through the side walls is necessary to cause the formation of a protective layer of solid electrolyte. In this invention, the side walls are lined with a ceramic material, e.g. titanium diboride, resistant to the electrolyte and to molten aluminium. Thermal insulation is provided such that a layer of solid electrolyte is not present during normal operation of the cell. A cathode current collection system is provided such that the horizontal lateral currents in the cathode are insignificant compared with the vertical current.

REFERENCES:
patent: 3093570 (1963-06-01), Dewey
patent: 3256173 (1966-06-01), Schmitt et al.
patent: 3779699 (1973-12-01), Russell et al.
patent: 3856650 (1974-12-01), Kugler et al.
patent: 4071420 (1978-01-01), Foster et al.
patent: 4194959 (1980-03-01), Hudson et al.
patent: 4224128 (1980-09-01), Walton
patent: 4396482 (1983-02-01), Das et al.
patent: 4405433 (1983-09-01), Payne

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