Removal of acidic impurities in processes for solvent extraction

Details Removal of acidic impurities in processes for solvent extraction Removal of acidic impurities in processes for solvent extraction

1989-01-31

1990-04-24

Cintins, Ivars

Liquid purification or separation

Processes

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

210683, B01D 1104, C02F 142

Patent

active

049198165

ABSTRACT:
Corrosion of process equipment in a system for extraction of aromatic components from nonaromatic components by means of a selective solvent, for example tetraethylene glycol, is reduced by treating with anion exchange resin a stream composed mainly of water which has been used to wash residual solvent from the extracted aromatics.

REFERENCES:
patent: 2878182 (1959-03-01), Bloch
patent: 4518396 (1985-05-01), Rawson

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