改性β沸石催化邻苯二酚叔丁基化反应

Alkylation of catechol with t-butyl alcohol over modified Co-β zeolite

考察了Co改性 β沸石对于邻苯二酚 叔丁醇烷基化反应的催化性能 ,用XRD和NH3 TPD表征了改性 β沸石的酸性和结构特性 ,讨论了催化剂孔结构、表面酸性对反应活性和选择性的影响 .研究发现 ,Co改性 β沸石的催化活性和选择性有所提高 ,4 叔丁基邻苯二酚 (4 TBC)的选择性达到 99% ,邻苯二酚的转化率达 71% ,该结果优于目前文献报道的最好水平 .Co改性

Alkylation of catechol with t butyl alcohol over modified β zeolites was studied and the catalytic activity of the zeolite was investigated.The pore structure and acid properties of catalysts were characterized by XRD and NH 3 TPD technique.The catalytic activity of modified Co β zeolite increases and result shows that the selectivity of 4 TBC over Co β zeolite reaches 99%, and the conversion of catechol is 71%,which is the best results to date reported in the literatures.