高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (12): 2721.

• 研究论文 • 上一篇    下一篇

预先负载原料法合成ZSM-5/SAPO-5复合分子筛

张强,  李春义,  山红红,  杨朝合   

  1. 中国石油大学(华东)重质油国家重点实验室, 青岛 266555
  • 收稿日期:2011-05-13 修回日期:2011-07-25 出版日期:2011-12-10 发布日期:2011-11-25
  • 通讯作者: 李春义 E-mail:chyli@upc.edu.cn
  • 基金资助:

    山东省自然科学基金(批准号:  ZR2009BQ018)资助.

ZSM-5/SAPO-5 Composite Molecular Sieves Synthesized by Preloading Raw Material Method

ZHANG Qiang, LI Chun-Yi*, SHAN Hong-Hong, YANG Chao-He   

  1. State Key Lab of Heavy Oil, China University of Petroleum(East China), Qingdao 266555, China
  • Received:2011-05-13 Revised:2011-07-25 Online:2011-12-10 Published:2011-11-25
  • Contact: LI Chun-Yi E-mail:chyli@upc.edu.cn
  • Supported by:

    山东省自然科学基金(批准号:  ZR2009BQ018)资助.

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被引次数

21

摘要： 采用预先负载原料法合成了一系列ZSM-5/SAPO-5(核/壳)双结构分子筛,  研究了预负载磷酸的条件对核壳结构分子筛的形成及性质的影响, 采用X射线衍射、扫描电子显微镜、X射线能量散射谱和红外光谱等手段对样品进行了表征. 结果表明,  负载原料的预处理条件明显影响磷与ZSM-5间的作用力及复合分子筛的结晶度和颗粒形貌等特性. 与常规合成方法相比,  在适宜的条件下采用这种方法更有利于小颗粒SAPO-5分子筛的形成及其在ZSM-5表面的生长.

关键词: 核壳双结构分子筛; , ZSM-5分子筛; , SAPO-5分子筛; , 负载原料法

Abstract: ZSM-5(core)/SAPO-5(shell) binary structure composite molecular sieves were synthesized by preloading raw material method. The effect of loading conditions on the formation and character of core/shell structure zeolite was investigated. These synthesized samples were characterized by XRD, SEM, EDS and FTIR, respectively. The  results indicate that  the pretreated condition affects the combination of   phosphorus and ZSM-5,  the crystallinity and particle morphology of composite significantly.  Compared to hydrothermal synthesis method, this approach is helpful to forming smaller SAPO-5  particles and growing SAPO-5 on ZSM-5 surface under suitable pretreated condition.

Key words: Core-shell binary structure zeolite, ZSM-5 molecular sieve, SAPO-5 molecular sieves, Loading raw material method

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