微波辐射条件下SAPO-5分子筛的合成与表征  

Synthesis and characterization of SAPO-5 molecular sieve by microwave irradiation

作　　者：杨威[1] 宋宇[1] 董卉[1] 徐同舟 黄城涛 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2014年第2期143-145,共3页Journal of Dalian Polytechnic University

基　　金：无机合成与制备化学国家重点实验室开放课题(2012-31);辽宁省教育厅A类项目(L201292)

摘　　要：以异丙醇铝、磷酸、正硅酸乙酯为反应原料,三乙胺作为模版剂,功率800 W、180℃微波辐射30min合成了粒径均一、具有AFI拓扑结构的SAPO-5分子筛,系统研究了Al2O3与SiO2摩尔比和HF添加量等因素对产物长径比和晶体形貌的影响。采用XRD、SEM等分析手段对产物进行表征。结果表明,n(Al2O3)/n(SiO2)可以控制晶体尺寸的大小以及长径比,HF的存在影响晶体的成核及分散性。SAPO-5 molecular sieve was compounded by microwave irradiation using Al（OPr^1）3, H3PO4 ,C8H20O4 Si as the reaction material and triethylamine as a temple at 180 ℃ for 30 min. Some factors influencing on products such as n（Al2O3）/n（SiO2）, HF dosage were systematically studied. The products were characterized by XRD, SEM and results showed that n（Al2O3）/n（SiO2） could control the crystal size and HF dosage could influence the nucleation and dispersion.

关 键 词：SAPO-5分子筛 微波合成 表征 

分 类 号：O614.2[理学—无机化学]