Claims
- 1. A catalyst for the isomerization of a non-equilibrium C.sub.8 -aromatic mixture containing xylenes and ethylbenzene comprising at least one platinum group metal and a gallium-substituted pentasil zeolite having a ZSM-5 structure in a zirconia-alumina matrix containing from about 1 to 10 wt. % zirconia, the catalyst having a matrix/zeolite weight ratio of 9:1 to 19:1.
- 2. The catalyst of claim 1 further characterized in that the platinum group metal component comprises from about 0.1 to 5 wt. % platinum.
- 3. The catalyst of claim 1 further characterized in that the zeolite contains from about 0.1 to 10 wt. % gallium.
- 4. The catalyst of claim 1 further characterized in that the catalyst comprises 0.05 to about 0.5 wt. % sulfur calculated as elemental sulfur.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of prior copending application Ser. No. 281,424 now U.S. Pat. No. 4,886,927, filed 12-8-88, which is a division of Ser. No. 109,019, filed 10-16-87, abandoned, the contents of which are incorporated herein by reference thereto.
US Referenced Citations (8)
Divisions (1)
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Date |
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Parent |
109019 |
Oct 1987 |
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Continuation in Parts (1)
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Number |
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281424 |
Dec 1988 |
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