任景涛,翁展,张鹏远

• 1:北京化工大学教育部超重力工程研究中心

摘要(Abstract)：

用三种聚苯乙烯磺酸树脂在Sn Cl4无水乙醇溶液中进行改性制备酯化催化剂,考察了改性时间、Sn Cl4用量、洗涤方式、产物等因素对催化合成乙酸正丁酯性能的影响。结果表明,用D001-CC树脂在Sn Cl4用量为10.71%(V),改性时间6 h的条件下所制得的改性树脂具有较优的催化效果,120℃下催化乙酸和正丁醇反应70分钟,乙酸的转化率可以达到98.56%。利用FT-IR、XRF、XRD等手段对改性树脂进行了表征。结果表明,Sn Cl4和树脂发生了络合反应形成了新的酸性中心;改性树脂与水发生部分水解,但在连续分水的条件下,可以保持稳定高效的催化效果,能重复使用10次以上。

关键词(KeyWords)： 聚苯乙烯磺酸树脂;改性;SnCl4;乙酸正丁酯;催化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重大项目(20990221)

作者(Author): 任景涛,翁展,张鹏远

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