Process for purifying waste water streams by inclusion complexat

Details Process for purifying waste water streams by inclusion complexat Process for purifying waste water streams by inclusion complexat

1992-04-16

1993-03-02

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210679, 210691, 210909, C02F 128

Patent

active

051906635

ABSTRACT:
A process to reduce the concentration of dissolved polynuclear aromatic hydrocarbons in an aqueous composition, particularly a refinery waste water stream, by contacting the aqueous composition with a water insoluble inclusion agent comprising an anchored cyclodextrin, said cyclodextrin having an inclusion cavity diameter of at least about 10 angstroms, under conditions which facilitate the selective formation of an inclusion complex between a cyclodextrin and a polynuclear aromatic hydrocarbon.

REFERENCES:
patent: 4447315 (1984-05-01), Lamb et al.
patent: 4726905 (1988-02-01), Friedman et al.

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