Method of removing organic contaminants from air and water with

Details Method of removing organic contaminants from air and water with Method of removing organic contaminants from air and water with

1996-04-17

1997-06-03

Nessler, Cynthia L.

Liquid purification or separation

Processes

Including geographic feature

210691, 210170, 405128, 405129, 134 7, C02F 128

Patent

active

056350759

ABSTRACT:
An quaternary phosphonium ion-exchanged clay and method of removing organic contaminants from air and/or water, by contacting the contaminants in the air or water with a quaternary phosphonium organo-clay. The clay is prepared by ion-exchange of an ion-exchangeable clay with (a) tetra-short chain alkyl (C.sub.1 -C.sub.4) quaternary phosphonium ion or (b) a di- or tri-short chain alkyl (C.sub.1 -C.sub.4) quaternary phosphonium ion having 1 or 2 mono-substituted or unsubstituted cycloakyl moieties, or one or two alkaryl moieties for removing air-laden and water-laden organic contaminants. The new organo-clays and methods are particularly adapted for removal of aromatic petroleum-based contaminants from water, such as benzene; alkylbenzenes, such as toluene; xylenes (o-, m- and p-isomers); and chlorinated 1 and 2 carbon compounds, such as CCl.sub.4.

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patent: 4650590 (1987-03-01), Beall
patent: 5151155 (1992-09-01), Cody
patent: 5346566 (1994-09-01), White
patent: 5401418 (1995-03-01), Boyd

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