Patent ID: 6274784
Filing Date: 2001-08-14
Classification: C07C

Abstract:
A separation process comprising:a) contacting a mixture containing (I) at least one C.sub.8 alkylaromatic hydrocarbon and (II) at least one C.sub.9 or C.sub.10 alkylaromatic hydrocarbon having at least one methyl or ethyl group, or a mixture thereof, with an adsorbent selected from the group consisting of zeolite Y ion exchanged with a metal selected from the group consisting of calcium, strontium, a Group IB element, a Group VIII element and mixtures thereof, and combinations thereof to selectively adsorb the C.sub.9 or C.sub.10 alkylaromatic hydrocarbon;b) collecting the C.sub.8 alkylaromatic hydrocarbon; andc) desorbing the adsorbed C.sub.9, C.sub.10, or mixture of C.sub.9 and C.sub.10, alkylaromatic hydrocarbon(s) using a desorbent and collecting the C.sub.9, C.sub.10, or mixture of C.sub.9 and C.sub.10 alkylammatic hydrocarbon(s).