Process for enhancing the separation of paraxylene from a feedst

Details Process for enhancing the separation of paraxylene from a feedst Process for enhancing the separation of paraxylene from a feedst

1984-11-23

1986-06-03

Doll, John

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

208310Z, C10C 713

Patent

active

045931500

ABSTRACT:
Paraxylene is separated from a feedstream containing ethylbenzene and other xylenes by contacting the feedstream preferably with a K-substituted Type Y zeolite, passing through the zeolite a selected additive, and recovering a stream enhanced in concentration of paraxylene relative to ethylbenzene. Preferably, the additive is a cyclic nitrogen containing compound such as pyrrole or pyridine.

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