不同焙烧温度的固体酸SO_4^(2-)/TiO_2催化羟基酰基化反应  

Acetylation of Hydroxyl Catalyzed by Applying Solid Acid SO_4^(2-)/TiO_2 Prepared under Different Roasting Temperatures

作　　者：付蓉[1] 张新云[2] 程小涛[1] 宋萍[1] 石宝国[1] 姚元勇[1] FU Rong ZHANG Xin-Yun CHENG Xiao-tao SONG Ping SHI Bao-guo YAO Yuan-yong(Collage of Material and Chemical Engineering, Tongren University, Guizhou Tongren 554300 Middle School Affiliated Tongren University, Guizhou Tongren 554300, China)

机构地区：[1]铜仁学院应用化学研究所材料与化学工程学院,贵州铜仁554300 [2]铜仁学院附中,贵州铜仁554300

出　　处：《广州化工》2017年第15期73-74,共2页GuangZhou Chemical Industry

基　　金：贵州省教育厅自然科学"青年"基金项目([KY.2014]317);贵州省社会发展攻关项目(SY[2013]3084)

摘　　要：以不同焙烧温度制备的SO_4^(2-)/TiO_2型的固体酸为催化剂,分别催化水杨酸的羟基酰基化反应,考察了焙烧温度如200℃、300℃及400℃制备的固体酸SO_4^(2-)/TiO_2的催化活性。实验结果表明:在以10mol%SO_4^(2-)/TiO_2型的固体酸(T=200℃)为催化剂,在催化条件为:反应温度65℃、反应时间60 min的条件下,催化水杨酸羟基乙酰化反应,其产率可达到89%,且大于SO_4^(2-)/TiO_2(T=300℃)和SO_4^(2-)/TiO_2(T=400℃)的催化活性。The acetylation of hydroxyl of ortho- hydroxybenzoic acid was evaluated by solid acid of SO2-4/TiO2 prepared under different roasting temperatures. Simultaneously, it was observed that the catalytic activity of solid acid SO2-4/TiO2 （ T = 200 ℃ ）, SO2-4/TiO2 （ T = 200 ℃ ） and SO2-4/TiO2 （ T = 200 ℃ ） applied to the acetylation under the same conditions, respectively. The results demonstrated that solid acid SO2-4/TiO2（ T=200 ℃ ） was used as potent catalyst to promote the acetylation, loading 10mol%, stirring for 60 rain at 65℃, tO afford 89% in yields, which was more than that of SO2-4/TiO2（T=300 ℃） and SO2-4/TiO2（T=400 ℃ ）.

关 键 词：有机催化 固体酸SO42-/TiO2 乙酰化反应 

分 类 号：TQ[化学工程]