Process for the adsorptive separation of metaxylene from aromati

Details Process for the adsorptive separation of metaxylene from aromati Process for the adsorptive separation of metaxylene from aromati

1993-08-23

1995-01-17

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

585831, C07C 712

Patent

active

053827473

ABSTRACT:
Metaxylene is recovered from a mixture of C.sub.8 aromatic hydrocarbons including other xylenes by liquid phase adsorptive separation using a sodium or sodium and lithium exchanged Y zeolite as the adsorbent. Performance is improved by maintaining the adsorbent in a narrow range of temperature and hydration. Toluene is the preferred desorbent.

REFERENCES:
patent: 3840610 (1974-10-01), Hedge
patent: 4306107 (1981-12-01), Broughton
patent: 4326092 (1982-04-01), Neuzil

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