摘要
以乙酸和正丁醇的酯化为探针反应，考察了ＳＯ２－４／ＴｉＯ２－ＳｎＯ２／ＺＳＭ－５催化剂的催化性能．实验结果表明：ＺＳＭ－５分子筛上负载钛锡双组元氧化物，比起负载单组元ＴｉＯ２，在相同的负载液浓度下，催化活性提高了１４％，且焙烧温度和Ｔｉ∶Ｓｎ（原子比）对催化活性亦有较大的影响．在回流温度下，催化剂投入量为乙酸加入量的３．２ｗｔ％，反应２ｈ，酯化率达９６．４％．
The supported catalyst SO2-4/TiO2SnO2/ZSM5 was prepared.The esterification of acetic acid and butanol over the catalyst was studied.The catalytic performance for esterification was improved 14% with addition of Sn into the catalyst at the same concentration of impregnant.Baking temperature and Ti∶Sn ratio are important factors to the catalytic activity.At reflux condition,the acetic acid conversion is 964% and selectivity 100% after two hours reaction.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
1998年第2期43-46,共4页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省自然科学基金
关键词
酯化
乙酸丁酯
催化
催化剂
SO2-4/TiO2SnO2/ZSM5,esterification,butyl acetate catalytic activity
