PRETREATMENT OF CATALYST SLURRY

摘要

PURPOSE:To easily and stably perform the continuous manufacturing and collection of cycloolefins by holding a catalyst slurry consisting of a ruthenium catalyst and water to 60-180 deg.C for a predetermined time under mixing. CONSTITUTION:In pretreating a catalyst slurry constituted of a ruthenium catalyst and water, monocyclic aromatic hydrocarbon and hydrogen are continuously supplied to the catalyst slurry to perform partial hydrogenating reaction and the aqueous phase being the catalyst slurry and on oil phase composed of a reaction product are separated to continuously collect the oil phase. The catalyst slurry is held to 60-180 deg.C for a predetermined time under mixing. Herein, the predetermined time varies depending on the constituents of the catalyst slurry or treatment temp. but is usually several hr or several days.