Resin regeneration process

Details Resin regeneration process Resin regeneration process

1993-03-29

1994-05-03

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210677, 210702, 210712, 521 26, B01J 4900

Patent

active

053084969

ABSTRACT:
Hydrogen chloride is stripped from spent basic ion exchange resin by treatment with a solution of a tertiary amine in an amide solvent. The eluent solution is treated with anhydrous ammonia to precipitate ammonium chloride. The solution of tertiary amine in amide solvent is separated from the precipitate and may be used to regenerate spent resin.

REFERENCES:
patent: 4372858 (1983-02-01), Ritter
patent: 5081159 (1992-01-01), Cutler
patent: 5091424 (1992-02-01), Lindy
Amberlyst A-21, Technical Bulletin, Fluid Process Chemicals Department, pp. 1-5.

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