Process for the separation of ortho-nitrotoluene

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

1984-10-18

1986-10-28

Terapane, John F.

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

Organic compounds

Oxygen containing

210690, 210672, 210674, C07C 7910

Patent

active

046200479

ABSTRACT:
An adsorptive separation process for separating ortho-nitrotoluene from a feed mixture comprising the ortho-isomer and at least one other isomer of nitrotoluene. The process comprises contacting the feed mixture with an adsorbent comprising a type X zeolite, containing at the exchangeable cationic sites cations of metals from Group IA or IIA of the Periodic Table of Elements, selectively adsorbing substantially all of the ortho-nitrotoluene to the substantial exclusion of the remaining isomers, removing the non-adsorbed portion of the feed mixture from contact with the adsorbent, and thereafter recovering high-purity ortho-isomer by desorption with nitrobenzene.

REFERENCES:
patent: 3965200 (1976-06-01), Manabe et al.
patent: 4270013 (1981-05-01), Priegnitz et al.
patent: 4371721 (1983-02-01), Wu
patent: 4395372 (1983-07-01), Kluttz et al.
patent: 4418230 (1983-11-01), Bakke et al.
patent: 4426543 (1984-01-01), Schumacher et al.

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