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MCM-49分子筛的合成及催化性能

李 彤1,2, 商永臣1,2, 魏树权1, 徐国林 1, 吴通好2, 张文祥2   

  1. 1. 哈尔滨师范大学化学系, 哈尔滨 150080; 2. 吉林大学化学学院, 长春 130023
  • 收稿日期:2004-02-12 修回日期:1900-01-01 出版日期:2004-04-26 发布日期:2004-04-26
  • 通讯作者: 张文祥

Synthesis and catalytic performance of MCM-49 zeolite

LI Tong1,2, SHANG Yong-chen1,2, WEI Shu-quan1, XU Guo-lin1, WU Tong-hao2, ZHANG Wen-xiang2   

  1. 1. Department of Chemistry, Harbin Normal University, Harbin 150080, China;2. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2004-02-12 Revised:1900-01-01 Online:2004-04-26 Published:2004-04-26
  • Contact: ZHANG Wen-xiang

摘要: 以六亚甲基亚胺(HMI)为模板剂, 采用水热合成法合成了MCM-49分子筛, 考察 了静态合成条件对合成的影响. 用XRD, IR和NH3-TPD等测试手段对合成产品的 物相和酸性进行分 析和表征, 结果表明: n(H2O)∶n(SiO2)=35~40, n(HMI)∶n( SiO2)=0.5和n(SiO2)∶n(Al2O3 )=20~35, 晶化72 h可以稳定合成出MCM-49分子筛, 合成的样品在1-丁烯骨架异构 化反应中表现出良好的催化性能.

关键词: MCM-49, 合成, 1-丁烯, 异构化

Abstract: MCM-49 zeolite wa s synthesized with hexamethylenimine as an organic template, by means of hydrothermal crystallization methods. The effect of static condition on the synthesis of MCM-49 was studied. The framework structure and acid property of MCM-49 were investigated by XRD, IR and NH3-TPD techniq ues. The res ults show that MCM-49 was obtained as a pure phase and with a good yield un der the condition of n(H2O)∶n(SiO2)=35~40, n(HMI)∶n(SiO 2) =0.5, n(SiO2)∶n(Al2O3)= 20~35 for 72 h crystalization. Furthermore, MCM-49 zeolite shows good ca talytic behavior for the skeletal isomerization of 1-butene.

Key words: MCM-49, synthesis, 1-butene, isomerization

中图分类号: 

  • O643.32