Catalysts for Hydration of Cyclohexene to Cyclohexanol
Catalysts for Hydration of Cyclohexene to Cyclohexanol作者机构:Shandong Provincial Key Lab of Chemical Engineering Institute of Applied Catalysis Yantai University Yantai 264005 P. R. China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:2013年第29卷第4期
页 面:743-746页
核心收录:
学科分类:081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
基 金:Supported by the Science and Technology Development Project of Shandong Province China
主 题:Hydration Cyclohexene Ion-exchange resin Modification Aminate rate
摘 要:The hydration of cyclohexene was determined in a stirred tank of 100 mL in a batch mode in the presence of modified or unmodified resin as catalyst. The ion-exchange sulfonate resin was modified with alkyl secondary amine. At an optimum amination rate of 15%, the conversion of cyclohexene reached to 22% and the selectivity of cyclohexanol was 95.6%. In a temperature range of 90--150℃, the activity and selectivity of the modified resin ca- talyst were much higher than those of the unmodified resin catalyst, which was attributed to the inclusion formed between cyclohexene and alkyl chain and also the quasi-lipophilic phase formed around the outer surface of resin beads. The formed quasi-lipophilic phase formed enhanced the conversion of cyclohexene and depressed the forma- tion of by-products.