MCM-49分子筛的合成及催化性能  

Synthesis and catalytic performance of MCM-49 zeolite

作　　者：李彤[1] 商永臣[1] 魏树权[1] 徐国林[1] 吴通好[2] 张文祥[2] 

机构地区：[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

出　　处：《吉林大学学报（理学版）》2004年第2期283-286,共4页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:20273025);黑龙江省教育厅基金(批准号:10531083).

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72h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.MCM-49 zeolite was 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 NH_3-TPD techniques. The results show that MCM-49 was obtained as a pure phase and with a good yield under the condition of n(H_2O)∶n(SiO_2)=35~40, n(HMI)∶n(SiO_2)=(0.5,) n(SiO_2)∶(n(Al_2O_3))=20～35 for 72 h crystalization. Furthermore, MCM-49 zeolite shows good catalytic behavior for the skeletal isomerization of 1-butene.

关 键 词：MCM-49分子筛 合成 催化 1-丁烯 异构化 水热合成法 

分 类 号：TQ424.25[化学工程] O643.32[理学—物理化学]