Document Type and Number:
Japanese Patent JPH0141133
Kind Code:
B2
Abstract:
This invention comprises a process for separating p-toluidine from a feed mixture comprising p-toluidine and o-or m-toluidine, which process comprises contacting the mixture at adsorption conditions with an adsorbent comprising an X or Y-type zeolite cation exchanged with a cation in the group Fe, Mn, Co, Ni or Zn, thereby selectively adsorbing the p-toluidine. The remainder of the feed mixture is removed from the adsorbent and the p-toluidine is recovered by desorption at desorption conditions with a desorbent material comprising aniline or an alkyl amine excluding alkyl amines having eight or more carbon atoms per molecule when the adsorbent comprises an X-type zeolite.
Inventors:
ZEEMUSU UIRIAMU PURIIGUNITSUTSU
HAAMAN EE JINEN
HAAMAN EE JINEN
Application Number:
JP20216484A
Publication Date:
September 04, 1989
Filing Date:
September 28, 1984
Export Citation:
Assignee:
UOP INC
International Classes:
C07C211/47; C07C67/00; C07C209/00; C07C209/86
Next Patent: JPH0141134