摘要
本文考察了固体酸 D0 0 1— CC树脂为催化剂 ,顺酐乙酯化反应的动力学和机理 .验证了顺酐乙酯化反应是分两步进行的 ,第一步为一快反应 ,第二步为一可逆平衡反应且速度较慢 .顺丁烯二酸乙酯为反应中间产物 .用尝试法计算得各步反应速率常数 k1 =1 .96× 1 0 - 3L· mol- 1· min- 1 ,k2 =2 .73× 1 0 - 5 L·mol- 1· min- 1 ,k3=4 .75× 1 0 - 4 min- 1 .
In this paper,the kinetics and mechanism are studied of the esterification of maleic anhydride,catalyzed by strong acid cation exchange resin.It has been found that the esterification process comprises two stages.The first stage involves a fast reaction,while the second stage-a reversible and slow reaction.The intermediate of reaction is monoethyl maleate.Constants of reaction rate at each stage are calculated by use of the testing method.They are : k 1=1.96×10 -3 L·mol -1 ·min -1 ; k 2 =\{2.73\}×10 -5 L·mol -1 ·min -1 ; k 3= 4.75×10 -4 min -1 .
出处
《内蒙古工业大学学报（自然科学版）》
2000年第1期25-28,共4页
Journal of Inner Mongolia University of Technology：Natural Science Edition
