摘要
水热合成了介孔材料SBA-15,并以其为载体负载固体超强酸SO42-/ZrO2,得到催化剂SO42-/ZrO2/SBA-15,通过XRD对其进行表征。在固定床反应器中,以丙烯和乙酸为原料,研究该催化剂催化合成乙酸异丙酯的活性。对反应条件进行系统地考察,得出最佳反应条件:反应温度140℃,反应压力1.2 MPa,空速1 h-1,n(C3H6)∶n(CH3COOH)=3∶1。在此条件下乙酸异丙酯的产率最高可达79.6%。
Solid superacid SO4^2-/ZrO2 was supported on surface of SBA-15 prepared by hydrothermal method. The SO4^2-/ZrO2/SBA-15 catalyst was characterized by XRD technique. Catalytic activity of SO4^2-/ZrO2/SBA-15 for synthesis of isopropyl acetate from propylene and acetic acid was studied in a fixed-bed reaction system, including the reaction condition. Optimum reaction condition was obtained as follows： reaction temperature 140℃, reaction pressure 1.2 MPa, space velocity （LHSV） 1 h^-1, n（C3H6）：n（CH3COOH） = 3： 1. Isopropyl acetate yield of up to 79.6% was obtained under the optimum condition.
出处
《工业催化》
CAS
2007年第2期40-43,共4页
Industrial Catalysis
基金
国家自然科学基金资助项目(29792070)
