A process for the nitration of xylene isomers using zeolite beta catalyst

摘要

This invention relates to a process for the nitration of xylene isomers by using zeolite-beta as a catalyst. This invention particularly relates to a process for the nitration of xylenes using solid acid catalyst, thus totally climinating the disposal of spent acid and salts. Herein we describe the nitration of disubstituted benzenes, all the isomers of xylene, by employing nitric acid and beta zcolite catalyst dispensing the use of acetic anhydride. The reactions were performed at temperatures ranging from room temperature to reflux temperature of the solvent