PROCESS FOR THE PREPARATION OF 2,5-DICHLORO-P-XYLENE

摘要

PROCESS FOR THE PREPARATION OF 2,5-DICHLORO-p-XYLENE A process for the preparation of 2,5-dichloro-p-xylene comprises reacting p-xylene with chlorine in the presence of a catalyst system comprising a catalyst selected from the group consisting of halides of iron, halides of antimony and mixtures thereof and a co-catalyst selected from the group consisting of organic sulfur compounds characterized by the presence of divalent sulfur.