| 摘要 |
PURPOSE:To produce phenol at a low cost in high yield, by reacting cyclohexenone in the presence of hydrogen in vapor phase using a novel solid catalyst consisting of a platinum and alkali metal-carried solid catalyst to carry out dehydrogenation of cyclohexenone. CONSTITUTION:Dehydrogenation of cyclohexenone is carried out by reacting the cyclohexenone in the presence of hydrogen (preferably having molar ratio of hydrogen/cyclohexenone of about 0.5-4) in vapor phase using a solid phase catalyst carrying platinum and alkali metal on a support consisting of silica, silica-alumina or alumina to provide phenol. In the above-mentioned method, after-treatment such as removal of catalyst is not required because of being vapor phase method and raw material cost is especially reduced, because the reaction proceeds in catalytic reaction. |
