Patent ID: 6262322
Filing Date: 2001-07-17
Classification: B01J,C07C

Abstract:
A process for production of aromatic isomers which comprises separation of at least one species of isomer from a mixture of halogenated aromatic isomers using an adsorbent which is a zeolite containing Cs and/or Rb, said zeolite being characterized in that the ratio of (the number of moles of Cs and/or Rb in the zeolite) to (the number of moles of Al in the zeolite) is 0.1 or more, wherein the halogenated aromatic isomer is a disubstituted halogenated aromatic isomer represented by the following formula: ##STR2##(where X denotes a C.sub.1-6 alkyl group or a halogen, and Y denotes a halogen.).