Cell for the refining of aluminium

Details Cell for the refining of aluminium Cell for the refining of aluminium

1984-03-05

1985-11-12

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204295, C25C 308, C25C 704

Patent

active

045526370

ABSTRACT:
An exchangeable separator is horizontally located within a three-layer refining cell for the electrolytic purification of aluminum. This separator is freely movable in the vertical direction within a movement space (h) defined by a refractory frame. The porosity of the separator is at least 30%, preferably at least 50%, so that the electrolyte and metal can pass through the separator without any significant additional loss of potential.
In industrial refining cells, the separator appropriately has a thickness of 0.5 to 2 cm and a disc-shaped design, the vertical movement space (h) being 0.5 to 1 cm. The level changes produced during the operation of the cell can be compensated for in this free movement space.

REFERENCES:
patent: 3386908 (1968-06-01), Daurat
patent: 4118292 (1978-10-01), Fray et al.
patent: 4338177 (1982-07-01), Withers et al.
patent: 4405415 (1983-09-01), Dewing et al.
patent: 4411747 (1983-10-01), Dawless et al.
patent: 4430174 (1984-02-01), Tsumura

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