Catalytic Synthesis of Isopropyl Benzene over SO_4~(2-)/ZrO_2-MCM-41

摘要

Super acid catalyst SO_4~(2-)/ZrO_2 was introduced into pure silicone MCM-41 via the impregnation method and the catalyst samples obtained at different temperatures were characterized by means of XRD,IR,and Py-IR techniques.The selectively catalytic gas-phase flow reactions of benzene with propene over the catalyst samples were carried out in a made-to-measure high-pressure flow reactor equipped with a thermostat and a condenser.Effect of the preparative condition on the catalytic synthesis of isopropyl benzene over the catalyst samples was tested.The results show that SO_4~(2-)/ZrO_2 -MCM-41 (SZM-41) can be used as a catalyst for the title reaction,in which there are a higher conversion (97% ) for the propene and a higher selectivity(93% ) for the isopropyl benzene.