节点文献
预置晶种合成EU-1/MOR复合分子筛
Synthesis of EU-1/MOR composite zeolite using preset crystal seeds
【摘要】 首次以溴化六甲双铵(HMBr2)为模板剂、丝光沸石(MOR)为晶种,采用预置晶种法在高浓体系中合成复合分子筛EU-1/MOR。在选定条件下,合适的MOR质量分数≥20%,30≤n(SiO2)∶n(Al2O3)≤60,晶化时间36 h≤T≤96 h,温度(420~450)K,合成出EU-1/MOR复合分子筛,且结晶度较好。采用XRD、SEM和IR等表征手段对样品进行分析,结果表明,合成出高纯度、高结晶度和具有优良催化性能的EU-1/MOR沸石。
【Abstract】 EU-1/MOR microporous composite zeolite was synthesized using organic template(HMBr2),preset crystal seeds and adding MOR into high concentration system.EU-1/MOR composite zeolite with good crystallinity was prepared under following condition: MOR mass fraction≥20%,30≤n(SiO2)∶n(Al2O3)≤60,crystallization time(36-96) h,crystallization temperature(420-450) K.The EU-1/MOR zeolite was characterized by XRD,IR and SEM.The characterization results indicated that the zeolite had high purity,good crystallinity and high catalytic activity.
【Key words】 catalytic chemistry； preset crystal seed； EU-1/MOR zeolite； composite molecular sieve；
- 【文献出处】 工业催化 ,Industrial Catalysis , 编辑部邮箱 ,2008年10期
- 【分类号】O643.36
- 【被引频次】15
- 【下载频次】251