Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1980-07-17
1982-04-20
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
C07C 712
Patent
active
043260926
ABSTRACT:
An adsorptive separation process for separating meta-xylene from a feed mixture comprising meta-xylene and the other C.sub.8 aromatics, which process comprises contacting the feed mixture with an adsorbent comprising type Y zeolite containing sodium at the exchangeable cationic sites and having a silica to alumina mole ratio of from about 4.5 to about 5.0, selectively adsorbing substantially all of the meta-xylene isomers to the substantial exclusion of the remaining C.sub.8 aromatics and thereafter recovering high-purity meta-xylene. A desorption step may be used to desorb the adsorbed meta-xylene. The process is carried out preferably in the liquid phase.
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Davis Curtis R.
Hoatson Jr. James R.
Morris Louis A.
Page II William H.
UOP Inc.
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