作　　者： ; ; ;

机构地区： 湖南理工学院化学化工学院

出　　处： 《应用化学》 2004年第6期644-645,共2页

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.

关 键 词： 硫酸锌 草酸二异戊酯 酯化 催化活性

领　　域： [理学] [理学]