PRODUCTION OF CYCLOHEXENES AND HYDROGENATION CATALYST THEREFOR

PURPOSE:To obtain cyclohexenes by the partial hydrogenation of a monocyclic aromatic hydrocarbon with hydrogen in the presence of water using a catalyst produced by supporting a group IVB metal in combination with Ru on hydrotalcites. CONSTITUTION:Cyclohexenes are produced in high selectivity and yi...

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Hauptverfasser:	MATSUNAGA FUJINAO, FUKUHARA HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain cyclohexenes by the partial hydrogenation of a monocyclic aromatic hydrocarbon with hydrogen in the presence of water using a catalyst produced by supporting a group IVB metal in combination with Ru on hydrotalcites. CONSTITUTION:Cyclohexenes are produced in high selectivity and yield by partially hydrogenating a monocyclic aromatic hydrocarbon (e.g., benzene, chlorobenzene, hydroxybenzene or toluene) at 100-200 deg.C under a hydrogen pressure of 10-100kgf/cm in the presence of water using a catalyst produced by supporting a group IVB metal in combination with Ru on hydrotalcites. The catalyst can be produced by using a carrier consisting of a hydrotalcite of formula I (M is Mg, Mn, Fe, etc.; M is Al, Fe, etc.; A is OH, F, Co, etc.) or a compound of formula II forming a hydrotalcite structure by hydration, supporting Ru ion and a group IVB metal in arbitrary order on the carrier and reducing the product.