Catalyst for producing cycloolefin and method for making the same

A catalyst for producing a cyclomonoolefin by hydrogenating an aromatic hydrocarbon of the formula: wherein R1, R2 and R3 are the same or different and each represents hydrogen or C1-C3 alkyl at 100 DEG -200 DEG C under a hydrogen pressure of 5-100 atm. in an aqueous medium having a pH of 2-7 is pre...

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Hauptverfasser:	KOSUGI, HISAO, KAGEYAMA, YOICHI, KATO, YOZO
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:	A catalyst for producing a cyclomonoolefin by hydrogenating an aromatic hydrocarbon of the formula: wherein R1, R2 and R3 are the same or different and each represents hydrogen or C1-C3 alkyl at 100 DEG -200 DEG C under a hydrogen pressure of 5-100 atm. in an aqueous medium having a pH of 2-7 is prepared by (1) immersing a carrier into an aqueous solution containing at least one cation selected from the group consisting of sodium, potassium, magnesium, calcium, barium, zinc, manganese and iron to obtain a treated carrier, (2) supporting at least one metal selected from the group consisting of ruthenium and rhodium on said treated carrier, and (3) immersing the carrier impregnated with at least one metal selected from the group consisting of ruthenium and rhodium into an aqueous solution containing at least one cation selected from the group consisting of sodium, potassium, magnesium, calcium, barium, zinc manganese and iron.