Process for the enrichment or separation of organic substance mi

Details Process for the enrichment or separation of organic substance mi Process for the enrichment or separation of organic substance mi

1991-06-17

1992-10-06

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210634, 210653, 21050021, 210649, B01D 1100, B01D 6100

Patent

active

051528991

ABSTRACT:
Salts of organic carboxylic acids can be separated from non-salt organic compounds using a semipermeable membrane consisting of a perfluorosulfonic acid polymer or a salt of such a polymer, by bringing a solution of the salts and the organic compounds in a C.sub.1 -C.sub.4 alkanol into contact with one side of the membrane and having the pure solvent on the opposite side of the membrane. The process can be used, for example, in purification processes or for recovering reactants from reaction residues.

REFERENCES:
patent: 4476025 (1984-10-01), Chum et al.
patent: 4846977 (1989-07-01), DeVellis et al.
patent: 4902416 (1990-02-01), Schroeder et al.

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