硅铝分子筛催化剂上邻苯二酚o-烷基化合成愈创木酚反应性能

硅铝分子筛催化剂上邻苯二酚o-烷基化合成愈创木酚反应性能

郝凤岭¹，², 刘钢¹, 李雪梅¹, 吴淑杰¹, 张文祥¹

1. 吉林大学化学学院, 长春 130021; 2. 吉林化工学院化学工程系, 吉林省吉林 132022

收稿日期:2006-10-15 修回日期:1900-01-01 出版日期:2007-07-26 发布日期:2007-07-26
通讯作者: 刘钢

Selective o-Methylation of Catechol for Guaiacol overAluminosilicate Catalysts

HAO Fengling¹，², LIU Gang¹, LI Xuemei¹, WU Shujie¹, ZHANG Wenxiang¹

1. College of Chemistry, Jilin University, Changchun 130021, China; 2. Department of Chemical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, Jilin Province, China

Received:2006-10-15 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
Contact: LIU Gang

摘要/Abstract

摘要： 采用水热法合成了不同Si/Al比的MCM-41介孔材料, 研究这些材料在以邻苯二酚和甲醇为原料气相法一步合成愈创木酚反应中的催化性能, 并与几种微孔分子筛的催化活性进行比较, 考察了孔径、酸强度和酸量对反应性能的影响. 结果表明, Si∶Al=100的MCM-41材料表现出较好的催化性能, 样品较大的孔径和一定量弱酸中心的存在对反应有利.

关键词: MCM-41, 硅铝分子筛, 愈创木酚, 邻苯二酚, 甲醇

Abstract: Mesoporous MCM41 materials with different Si/Al molar ratios are synthesized under hydrothermal condition, and used as catalysts for vaporphase selective o-methylation of catechol with methanol. The performancesof the mesoporous MCM41 materials were also compared with those of various aluminosilicates molecular sieves to investigate the influences of pore size, the amount and strength of acid sites on the catalytic activity. The results show that MCM-41 with Si ∶[KG-*3〗Al=100 exhibits a good catalytic activity and selectivity to guaiacol. This may mainly be attributed to the relative large pore size and the presence of suitable amounts of weak acid on the surface of catalyst.

Key words: MCM-41, aluminosilicates, guaiacol, catechol, methanol

中图分类号:

O643

郝凤岭，, 刘钢, 李雪梅, 吴淑杰, 张文祥. 硅铝分子筛催化剂上邻苯二酚o-烷基化合成愈创木酚反应性能[J]. J4, 2007, 45(04): 647-651.

HAO Fengling，, LIU Gang, LI Xuemei, WU Shujie, ZHANG Wenxiang. Selective o-Methylation of Catechol for Guaiacol overAluminosilicate Catalysts[J]. J4, 2007, 45(04): 647-651.

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