Electrolytic production of rare earth metals/alloys thereof

Details Electrolytic production of rare earth metals/alloys thereof Electrolytic production of rare earth metals/alloys thereof

1992-05-04

1993-03-02

Niebling, John

Chemistry: electrical and wave energy

Processes and products

204 71, C25C 300, C25C 334

Patent

active

051906252

ABSTRACT:
The rare earth metals, or alloys thereof, are prepared in high yields in a specially designed electrolytic cell, by electrolyzing a melt comprising (i) at least one chloride of at least one rare earth, or at least one such chloride and at least one chloride of at least one transition metal, (ii) at least one alkali or alkaline earth metal chloride, and (iii) at least one alkali or alkaline earth metal fluoride.

REFERENCES:
patent: 2961387 (1960-11-01), Slatin
patent: 4139427 (1979-02-01), Greinacher
Morrice et al., "Fused-Salt Electrowinning and Electrorefining of Rare-Earth and Yttrium Metals", Minerals Sci. Engng., vol. 11, No. 3 (Jul. 1979).

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