Boron selectivation of molecular sieve catalysts and use thereof in hydrocarbon conversion

In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500° C.; and the resultant catalyst is then contacted with a medium containing...

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Bibliographische Detailangaben
Hauptverfasser:	MAZZONE, DOMENICK, N, BORGHARD, WILLIAM, G, FEELEY, OWEN, C, FRIED, JOHN, C, SWEETEN, GLENN, R, BEECKMAN, JEAN, W, CRANE, ROBERT, ANDREW, JR, CHESTER, ARTHUR, WARREN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500° C.; and the resultant catalyst is then contacted with a medium containing hydrogen ions to at least partially restore the acid activity of the molecular sieve.