Chemistry: electrical and wave energy – Processes and products
Patent
1978-03-29
1979-05-29
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
C25C 302
Patent
active
041566351
ABSTRACT:
A method for recovering lithium from its molten amalgam by electrolysis of the amalgam in an electrolytic cell containing as a molten electrolyte a fused-salt consisting essentially of a mixture of two or more alkali metal halides, preferably alkali metal halides selected from lithium iodide, lithium chloride, potassium iodide and potassium chloride. A particularly suitable molten electrolyte is a fused-salt consisting essentially of a mixture of at least three components obtained by modifying an eutectic mixture of LiI-KI by the addition of a minor amount of one or more alkali metal halides. The lithium-amalgam fused-salt cell may be used in an electrolytic system for recovering lithium from an aqueous solution of a lithium compound, wherein electrolysis of the aqueous solution in an aqueous cell in the presence of a mercury cathode produces a lithium amalgam. The present method is particularly useful for the regeneration of lithium from the aqueous reaction products of a lithium-water-air battery.
REFERENCES:
patent: 2148404 (1939-02-01), Gilbert
patent: 2234967 (1941-03-01), Gilbert
Cooper John F.
Homsy Robert V.
Krikorian Oscar H.
Bernheim William S.
Croft Irene S.
Gaither Roger S.
The United States of America as represented by the United States
Williams Howard S.
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