以异丙胺为模板剂合成ZSM-23分子筛  

Synthesis of ZSM-23 Zeolite Using Isopropylamine as Template

作　　者：刘晔[1] 王振东[1] 凌云[1] 李贤波[1] 刘月明[1] 吴鹏[1] 

机构地区：[1]华东师范大学化学系、上海市绿色化学与化工过程绿色化重点实验室,上海200062

出　　处：《催化学报》2009年第6期525-530,共6页

基　　金：国家高技术研究发展计划(863计划,2007AA03Z342);国家重点基础研究发展计划(973计划,2006CB202508);上海市科委(06SR07101,07QA14017);上海市重点学科建设(B409)

摘　　要：系统考察了异丙胺-硅溶胶-偏铝酸钠-水体系中合成ZSM-23分子筛的影响因素.结果表明,当投料SiO2/Al2O3比为60～150时能够合成出晶相单一、结晶度良好的ZSM-23分子筛.SiO2/Al2O3比、模板剂用量、体系的碱度以及水量均能影响合成产物的晶型.同时模板剂用量和SiO2/Al2O3比对ZSM-23分子筛的形貌影响很大.在优化的条件下,稳定合成了不同形貌的ZSM-23分子筛.The synthesis of ZSM-23 in the hydrothermal system of isopropylamine-silica sol-NaAlO2-H2O was investigated. Pure ZSM-23 with high crystallinity was synthesized when the SiO2/Al2O3 molar ratio in the gel was between 60 and 150. The SiO2/Al2O3 molar ratio, template concentration, gel alkalinity, and water content were critical in the crystal phase transition. The template concentration and SiO2/Al2O3 molar ratio played important roles in the morphology control of the products. ZSM-23 zeolites with different morphologies were obtained under different experimental conditions.

关 键 词：ZSM-23分子筛 ZSM-5分子筛 模板剂 异丙胺 

分 类 号：O643.36[理学—物理化学]