摘要
The infrared spectrum of pyridine adsorbed on surface of ZnSO 4·7H 2O indicates it exhibits Lewis acid centers as a catalyst. Experiments showed that it had good catalytic performance in esterification of oxalic acid with iso-amyl alcohol with ester yield being 97.5% in following conditions: the molar ratio of isoamyl alcohol to oxalic acid 2.8, catalyst amount 7.4%(based on the mass of oxalic acid), reaction temperature 145 ℃, reaction time 1.5 h. The catalyst could be used repeatedly for six times.
The infrared spectrum of pyridine adsorbed on surface of ZnSO 4·7H 2O indicates it exhibits Lewis acid centers as a catalyst. Experiments showed that it had good catalytic performance in esterification of oxalic acid with iso-amyl alcohol with ester yield being 97.5% in following conditions: the molar ratio of isoamyl alcohol to oxalic acid 2.8, catalyst amount 7.4%(based on the mass of oxalic acid), reaction temperature 145 ℃, reaction time 1.5 h. The catalyst could be used repeatedly for six times.
出处
《应用化学》
CAS
CSCD
北大核心
2004年第6期644-645,共2页
Chinese Journal of Applied Chemistry
关键词
硫酸锌
草酸二异戊酯
酯化
催化活性
zinc sulfate,di-isoamyl oxalate,esterification,catalytic activity
