Process for the separation of ortho-chloronitrobenzene

Details Process for the separation of ortho-chloronitrobenzene Process for the separation of ortho-chloronitrobenzene

1979-02-23

1980-12-23

Kyle, Deborah L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

55 75, 260708, C07C 7912

Patent

active

042409861

ABSTRACT:
An adsorptive separation process for separating ortho-chloronitrobenzene from a feed mixture comprising ortho-chloronitrobenzene and at least one other isomer of chloronitrobenzene, which process comprises contacting the feed mixture with an adsorbent comprising a type X or type Y zeolite containing at the exchangeable cationic sites one or more cations selected from the group consisting of Groups IA, IIA and the transition metals of the Periodic Table of Elements, selectively adsorbing substantially all of the said ortho-chloronitrobenzene to the substantial exclusion of the remaining isomers and thereafter recovering high-purity ortho-chloronitrobenzene. A desorption step may be used to desorb the adsorbed ortho-chloronitrobenzene.

REFERENCES:
patent: 2985589 (1961-05-01), Broughton et al.
patent: 3558732 (1971-01-01), Neuzil
patent: 3840610 (1974-10-01), Hedge
Suzuki et al., "Separation of Cresol Isomers", Chem. Abstracts vol. 85 (1976), Abstract #85: 77876c.
Chmielowiec et al., "Usefulness of Ion Exchange Resins . . . ", Chem. Abstracts, vol. 85 (1976), Abstracts #85: 136947b.
De Rossef et al., "Separation of Pinene Isomers", Chem. Abstracts, vol. 82 (1975), Abstract #82: 73245m.

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