Removal of organic cations from polar fluids

Details Removal of organic cations from polar fluids Removal of organic cations from polar fluids

1989-12-06

1990-11-06

Hruskoci, Peter

Liquid purification or separation

Processes

Ion exchange or selective sorption

210681, 210691, 210903, 210906, 210908, B01D 1508

Patent

active

049684337

ABSTRACT:
Cationic organic impurities such as ternary sulfonium ions and quaternary ammonium and phosphonium compounds are effectively removed from polar liquids such as water or water/alcohol mixtures by contacting the polar liquid with an absorbent comprising a trinitroarenol such as a picric acid. This method is particularly effective for removing such cationic impurities from polar liquids containing organic zwitterions.

REFERENCES:
patent: 3013995 (1961-12-01), Slough
patent: 3341479 (1967-09-01), Aftergut
patent: 3370021 (1968-02-01), Kohn
patent: 4487698 (1984-12-01), Idel et al.

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