首页 | 本学科首页   官方微博 | 高级检索  
     检索      

模板剂种类、浓度、硅源对SAPO-5分子筛结构性质的影响
引用本文:肖天存,王海涛,苏继新,陈方,安立敦,王弘立.模板剂种类、浓度、硅源对SAPO-5分子筛结构性质的影响[J].分子催化,1998,12(4):246-252.
作者姓名:肖天存  王海涛  苏继新  陈方  安立敦  王弘立
作者单位:山东大学环境工程系,中国科学院兰州化学物理研究所
基金项目:山东省优秀青年科学家奖励基金
摘    要:研究了模板剂种类、浓度及硅源等因素对SAPO5分子筛结构、性质及酸催化性能的影响.结果表明,在合成SAPO5分子筛时,较合适的模板剂为三乙基胺或四乙基氢氧化铵.模板剂对分子筛结构的影响在于其空间效应,对酸性的影响在于其对硅反应性能和骨架硅含量的改变.不同硅源对分子筛骨架中的硅含量和酸性有较大的影响.得到较强酸性SAPO5分子筛催化剂的条件是:采用三乙胺模板剂和正硅酸乙酯.

关 键 词:SAPO-5的合成  模板剂  硅源  酸性

Effect of Template Types, Concentration, and Silicon Sources on the Structure and Acid Catalytic Performance of SAPO 5 Molecular Sieves
XIAO Tiancun,WANG Haitao,SU Jixin,CHEN Fang.Effect of Template Types, Concentration, and Silicon Sources on the Structure and Acid Catalytic Performance of SAPO 5 Molecular Sieves[J].Journal of Molecular Catalysis (China),1998,12(4):246-252.
Authors:XIAO Tiancun  WANG Haitao  SU Jixin  CHEN Fang
Institution:XIAO Tiancun WANG Haitao SU Jixin CHEN Fang (Department of Environmental Engineering Shandong University Jinan 250100) AN Lidun WANG Hongli (Lanzhou Institute of Chemical Physics The Chinese Academy of Sciences Lanzhou 730000)
Abstract:In this paper, the effects of template types, concentration and the silicon sources on the structure, nature and acid catalytic performance have been studied. The results reveal that during synthesis of SAPO 5, the proper templates are Et 3N and Et 4NOH. The effect of template on the structure of SAPO 5 lies in its space size, and effect on the acidity lies in its effecting the reactivity of silicon reactants and silicon content in the framework of molecular sieves. The different silicon sources has fair influences on the silicon content in the framework and the acidity of the SAPO 5. The conditions to get SAPO 5 molecular sieve with strong acidity are using Et 3N as template and using Si(OEt) 4 as silicon sources.
Keywords:Synthesis of SAPO  5  Template  Silicon sources  Acidity
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《分子催化》浏览原始摘要信息
点击此处可从《分子催化》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号