| 摘要 |
PURPOSE:To produce a cycloolefin useful for industrial use, especially cyclohexene, on an industrial scale in high yield at a low cost by partially hydrogenating an aromatic hydrocarbon such as benzene. CONSTITUTION:An aromatic hydrocarbon such as benzene is partially hydrogenated with hydrogen gas in the presence of a catalyst consisting of ruthenium and manganese, water and, as necessary, an alcohol and/or an alkaline agent. The catalyst consisting of ruthenium and manganese exhibits the catalytic activity extremely stable with time compared with conventional catalyst and the objective compound can be selectively produced at reduced cost over a long period. |
