Separation of ortho-nitrotoluene

Details Separation of ortho-nitrotoluene Separation of ortho-nitrotoluene

C - Chemistry, Metallurgy

07

C

260/612.9

C07C 201/16 (2006.01)

Patent

CA 1239939

"SEPARATION OF ORTHO-NITROTOLUENE" ABSTRACT An adsorptive separation process for separating ortho- nitrotoluene from a feed mixture comprising the ortho-isomer and at least one other isorner 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.

493318

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