改性Beta(Na)型分子筛对异丙醇苯酚烷基化反应的影响  

Influence of modified Na-Beta zeolites for the alkylation of phenol with isopropanol

作　　者：赵娜[1] 赵欣[1] 商永臣[1] 肖瑞杰[2] 张丽[1] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150025 [2]防灾科技学院,河北廊坊065000

出　　处：《化学工程师》2012年第3期9-10,22,共3页Chemical Engineer

基　　金：黑龙江省自然科学基金项目(B200914);哈尔滨市科技创新人才专项资金项目(2008RFQXG074);哈尔滨师范大学科技发展预研项目(08XYS-03)

摘　　要：本文研究了用Beta(Na)型分子筛及用Na2O、磷钨酸改性后的Beta(Na)型分子筛作催化剂对苯酚异丙醇烷基化反应的影响。采用NH3-TPD、X射线衍射对催化剂晶相和表面酸性进行表征。实验结果表明:用Na2O改性后催化剂基本失活,而用磷钨酸改性后转化率可达68.3165%,邻异丙基苯酚选择性可达59.9167%。This paper studies the influence for alkylation of phenol with isopropanol on Beta（Na） zeolites modified by Na2O and phosphotungstic acid catalyst.Employing XRD and NH3-TPD showed catalyst crystalline structure and surface acidity.The result show that the catalyst modified by Na2O is loss activity;selectivity of-isopropyl phenol was 59.9167% and the phenol conversion rate can reach to 68.3165% under modified by phosphotungstic acid catalyst.

关 键 词：Beta(Na)分子筛 异丙基苯酚 烷基化 

分 类 号：O643[理学—物理化学]