SO4^2-/SnO2催化剂的制备及其对苯硝化反应的催化活性

Preparation of SO_4^(2-)/SnO_2 Catalyst and Its Catalytic Activity in Nitration of Benzene

采用(NH4)2SO4溶液浸渍法制备了一系列SO42-/SnO2催化剂(Cat-n,n=5,10,15,20),其结构经IR表征。以Cat-10(焙烧温度500℃)催化苯液相硝化反应的研究结果表明,引入SO24-后催化剂的活性显著增加,硝基苯产率63.8%。

A series of SO2-4/SnO2 catalysts（Cat-n,n=5,10,15,20）were prepared by dip-molding in（NH4）2SO4 aqueous solution.The structures were characterized by IR.The catalytic activity of Cat-10 was investigated in the liquid-phase reaction system of benzene nitration.The results showed that the introduction of SO2-4 in SnO2 increased the catalytic activity of Cat-10（calcination at 500 ℃）and the yield of nitrobenzene was 63.8%.