Catalysts for Hydration of Cyclohexene to Cyclohexanol

• Published in: Chemical research in Chinese universities Vol. 29; no. 4; pp. 743 - 746
• Main Authors: Fang, De-ren, Lu, Jin-yan, Zhang, Hui-min, Li, Jie, Wang, Yan-yan
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2013; Shandong Provincial Key Lab of Chemical Engineering,Yantai University, Yantai 264005, P.R.China; Institute of Applied Catalysis,Yantai University, Yantai 264005, P.R.China%Shandong Provincial Key Lab of Chemical Engineering,Yantai University, Yantai 264005, P.R.China%Institute of Applied Catalysis,Yantai University, Yantai 264005, P.R.China
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Inorganic Chemistry; Organic Chemistry; Physical Chemistry; 催化剂; 改性树脂; 树脂改性; 温度范围; 烷基链; 环己烯水合; 环己醇; 离子交换; Modification; Cyclohexene; Hydration; Aminate rate; Ion-exchange resin
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-013-3091-x

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.