Metal production by electrolysis of a molten electrolyte

Details Metal production by electrolysis of a molten electrolyte Metal production by electrolysis of a molten electrolyte

1985-02-21

1985-12-24

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

204 69, 204 64B, 204215, 204247, C25C 300, C25C 302, C25C 304

Patent

active

045604495

ABSTRACT:
Electrolytic cells for production of Mg or other metal lighter than the molten electrolyte comprise electrode assemblies of anode 28, cathode 26 and intermediate bipolar electrodes 30 with substantially vertical regions 39 between them. The intermediate bipolar electrodes have open-top channels 50 along their top edges. An electrolyte/metal mixture rising from the interelectrode regions by gas lift is transported along these channels, substantially undisturbed by rising gas, to a weir 20 and then to a metal collection chamber 18. The electrolyte surface is kept at a constant level, preferably by means of a vessel 22 submerged in electrolyte in the metal collection chamber, to or from which molten electrolyte can be transferred to alter the surface level.

REFERENCES:
patent: 3907651 (1975-09-01), Andreassen et al.
patent: 4401543 (1983-08-01), Ishizuka

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