Process for separating meta-xylene from a feed of aromatic...

Details Process for separating meta-xylene from a feed of aromatic... Process for separating meta-xylene from a feed of aromatic...

2006-08-09

2008-12-23

Nguyen, Tam M (Department: 1797)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

C585S805000, C585S825000, C585S820000

Reexamination Certificate

active

07468468

ABSTRACT:
The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising:a step for bringing said feed into contact with a faujasite type zeolite adsorbant, the water content of the adsorbant being in the range 0 to 1% by weight and the adsorption temperature being from 160° C. to 180° C.;a desorption step employing a solvent selected from toluene, indane and mixtures thereof.

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patent: 4326092 (1982-04-01), Neuzil
patent: 5382747 (1995-01-01), Kulprathipanja
patent: 5849981 (1998-12-01), Kulprathipanja
patent: 5900523 (1999-05-01), Kulprathipanja
patent: 7396973 (2008-07-01), Winter

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