Selectivation of molecular sieve catalysts and use thereof in hydrocarbon conversion

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 DEG C; and the resultant catalyst is then contacted with a medium containin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHESTER, ARTHUR WARREN, BORGHARD, WILLIAM G, FEELEY, OWEN C, MAZZONE, DOMENICK N, CRANE, ROBERT A, SWEETEN, GLENN R, BEECKMAN, JEAN W, FRIED, JOHN C
Format: Patent
Sprache:chi ; 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 DEG 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.