炭基固体酸对芳香酸酯化反应的催化性能研究  

Catalytic Activity of A Carbon-based Solid Acid Catalyst in the Etherification of Aromatic Acids

作　　者：许岩[1] 杨欣[1] 谢维思[1] 张敏[1] 马海龙[1] 杨亚提[1] 

机构地区：[1]西北农林科技大学理学院,陕西杨凌712100

出　　处：《广州化工》2012年第20期51-52,61,共3页GuangZhou Chemical Industry

基　　金：西北农林科技大学基本科研业务费青年项目(No:QN2009050);西北农林科技大学国家级大学生创新创业训练计划项目(No:1210712170)

摘　　要：通过重氮盐还原反应对活性炭进行磺化处理,制备炭基固体酸催化剂(简称炭催化剂),考察了炭催化剂对苯甲酸、苯乙酸、3-苯丙酸等芳香酸与乙醇的酯化反应的催化活性。结果表明,炭催化剂对苯甲酸的催化活性较低,反应10 h的催化效果仅为硫酸催化剂的6%;炭催化剂对苯乙酸、3-苯丙酸催化活性较高,10 h催化效果达到硫酸的89%。A carbon-based solid acid catalyst was synthesized by sulfonating activated carbon in a diazonium salt reduction process.The activity of the carbon catalyst was evaluated in the etherification reactions of acrylic acids such as benzoic acid,phenylacetic acid and 3-phenylpropionic acid with ethanol.The experimental results showed that the carbon catalyst＇s activity was low in the etherification of benzoic acid,but was high in the etherification of phenylacetic acid and 3-phenylpropionic acid.

关 键 词：炭基固体酸 芳香酸 酯化反应 催化性能 

分 类 号：O643[理学—物理化学]