Method for recovering lithium chloride

Details Method for recovering lithium chloride Method for recovering lithium chloride

1991-09-27

1993-11-16

Brunsman, David

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

423184, 528293, 528299, 528388, C01D 1504

Patent

active

052621375

ABSTRACT:
A method for recovery of lithium chloride wherein a dihalogen aromatic compound is reacted with an alkali metal sulfide and/or an alkali metal hydrosulfide in a polar solvent in the presence of lithium chloride and wherein after polyarylene sulfide particles and a matter insoluble in the solvent are separated from the resulting mixture, lithium chloride is recovered from a residual solution, characterized in that lithium chloride in the residual solution is separated on crystallization. In this manner, high purity lithium chloride may be recovered at a lower cost by a simple equipment, whilst high quality polyarylene sulfide may be obtained.

REFERENCES:
patent: 4919911 (1990-04-01), Shirota et al.

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