稀土超强酸SO^4^(2-)/TiO_2-Nd_2O_3催化合成环己烯  

Synthesis of cyclohexene using rare earth solid superacid SO_4^(2-)/TiO_2-Nd_2O_3 catalyst and its mechanism study

作　　者：方智利[1] 聂启祥[1] 郑龙珍[1] 

机构地区：[1]华东交通大学基础学院化学与化工系,江西南昌330013

出　　处：《化学研究与应用》2007年第9期1028-1032,共5页Chemical Research and Application

摘　　要：Nanosized rare earth solid superacid SO42/TiO2-Nd2O3 was prepared and was used as a catalyst for cyclohexand dehydration to form cyclohexene.The influence of various preparation parameters such as the concentration of Nd3+,the concentration of H2SO4 and the calcination temperature on the catalytic activity was studied.It indicates that SO42-/TiO2-Nd2O3 has fairly high catalytic activity on the dehydration of cyclohexand and the yield of cyclohexene can reach 79.73%.The SO42-/TiO2-Nd2O3 catalytic mechanism for cyclohexand dehydration and the Nd3+ effect on the catalytic activity was also disccused.Nanosized rare earth solid superacid SO42/TiO2-Nd2O3 was prepared and was used as a catalyst for cyclohexand dehydration to form cyclohexene.The influence of various preparation parameters such as the concentration of Nd^3＋,the concentration of H2SO4 and the calcination temperature on the catalytic activity was studied.It indicates that SO4^2-/TiO2-Nd2O3 has fairly high catalytic activity on the dehydration of cyclohexand and the yield of cyclohexene can reach 79.73%.The SO4^2-/TiO2-Nd2O3 catalytic mechanism for cyclohexand dehydration and the Nd^3＋ effect on the catalytic activity was also disccused.

关 键 词：稀土固体超强酸SO4^2-/TiO2-Nd2O3 环己烯 环己醇 合成 

分 类 号：O643.36[理学—物理化学]