催化学报

催化学报 ›› 2007, Vol. 28 ›› Issue (11): 937-939.

• 研究快讯 • 上一篇    下一篇

杂原子介孔分子筛Me-HMS催化酯交换合成碳酸二苯酯

罗淑文1,2,陈彤1,童东绅1,2,曾毅1,雷永诚1,王公应1   

  1. 1 中国科学院成都有机化学研究所, 四川成都 610041; 2 中国科学院研究生院, 北京 100049
  • 收稿日期:2007-11-25 出版日期:2007-11-25 发布日期:2011-10-13

Synthesis of Diphenyl Carbonate via Transesterification Catalyzed by HMS Mesoporous Molecular Sieves Containing Heteroelements

LUO Shuwen1,2, CHEN Tong1*, TONG Dongshen1,2, ZENG Yi1, LEI Yongcheng1, WANG Gongying1   

  1. 1 Chengdu Institute of Organic Chemistry, The Chinese Academy of Sciences, Chengdu 610041, Sichuan, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2007-11-25 Online:2007-11-25 Published:2011-10-13

PDF

1038

被引次数

29

摘要： 以水热合成法制备了杂原子介孔分子筛Me-HMS (Me指金属杂原子), 用于催化碳酸二甲酯与苯酚酯交换合成碳酸二苯酯的反应. 小角度的X射线衍射显示,所有样品均具有典型的HMS介孔结构. Me-HMS中, Ti-HMS显示最好的催化性能,其活性与骨架钛含量密切相关,当溶胶中Ti/Si比达1/30时,骨架钛趋于饱和,苯酚转化率达到最大值31.4%, 酯交换选择性为99.9%.

关键词: HMS介孔分子筛, 碳酸二甲酯, 苯酚, 酯交换, 碳酸二苯酯

Abstract: Heteroelements-containing mesoporous molecular sieves Me-HMS (Me=the incorporated metal) were prepared by the hydrothermal synthesis mothod and used for the synthesis of diphenyl carbonate (DPC) via transesterification between dimethyl carbonate (DMC) and phenol. Low angleX-raydiffraction patterns showed that all samples have typical of hexagonal phase structure. Among all tested Me-HMS samples, Ti-HMS exhibited the best catalytic performance, and the activity was closely related to the intra-framework Ti species content. When the molar ratio of Ti/Si in sol-gel reached 1/30, the amount of intra-framework Ti species in Ti-HMS was closed to saturation, and the maximum phenol conversion of 31.4% and the transesterification selectivity of 99.9% were obtained.

Key words: HMS mesoporous molecular sieve, dimethyl carbonate, phenol, transesterification, diphenyl carbonate