AlPO_4催化剂的制备和表征及其在缩醛化反应中的催化性能

摘要利用水热及溶胶-凝胶两种方法制备不同组成的AlPO4催化剂。应用XRD、NH3-TPD等手段对催化剂进行了表征。试验表明催化剂结构及表面酸性与其制备方法、焙烧温度及n(P)/n(Al)比密切相关。乙醛和丙二醇的缩醛化反应表明丙二醇的转化率主要受催化剂表面弱酸度的影响。当n(P)/n(Al)为1.0,焙烧温度为400℃,用溶胶-凝胶法制备的AlPO4催化剂活性最高。

	Service

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	Email Alert
	RSS
	作者相关文章
	王宇飞
	王日杰
	杨晓霞

关键词： AlPO4催化剂环缩醛缩醛化反应表面酸

Abstract： AlPO_4 catalysts with different n(P)/n(Al) were prepared using hydrothermal and sol-gel method,respectively,and were characterized by means of XRD and NH_3-TPD.Results showed that the preparation method,the calcination temperature and n(P)/n(Al) had effect on the structure of catalyst and the surface acidity.The conversion of propylene glycol was mainly affected by the surface acidity of the catalyst.When n(P)/n(Al) was 1.0,calcination temperature was 400 ℃,AlPO_4 prepared by sol-gel method has the highest catalytic activity.

Keywords：

Received 2009-05-15; published 2009-05-15

引用本文:

王宇飞;王日杰;杨晓霞;.AlPO_4催化剂的制备和表征及其在缩醛化反应中的催化性能[J]. 化学工业与工程, 2009,26(3): 199-202

WANG Yu-fei,WANG Ri-jie,YANG Xiao-xia.Preparation and Characterization of AlPO_4 Catalyst and Its Application in Acetalization[J]. Chemcial Industry and Engineering, 2009,26(3): 199-202