高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (12): 1053.

• 论文 •    下一篇

微量Al对杂原子ZSM-5型沸石晶化的影响

冯守华, 徐如人   

  1. 吉林大学化学系
  • 收稿日期:1986-07-04 出版日期:1987-12-24 发布日期:1987-12-24

The Influence of Trace Amounts of Aluminium on the Crystallization of Heteroatom-Containing ZSM-5-Type Zeolites

Feng Shouhua, Xu Ruren   

  1. Department of Ghemistry, Jilin University, Changchun
  • Received:1986-07-04 Online:1987-12-24 Published:1987-12-24

PDF (PC)

被引次数

6

摘要： 在HMDA-Na2O-MOx/2-SiO2-H2O体系中(HMDA=1,6-己二胺,M=V(Ⅲ),V(Ⅳ),Fe(Ⅲ)和Ga),通过加Al对照实验、液相电子衍射结构分析、X射线光电子能谱(XPS)表面组成分析和晶化动力学计算等方法,考察了微量Al对杂原子ZSM-5型沸石形成与晶体生长的影响。结果表明,微量Al对这类沸石的形成起"助成核作用刀,从而加速其晶体生长。

Abstract: The present paper reports the systematical investigation of the influence of trace amounts of aluminium on the formation and crystal growth of M-Si-ZSM-5 type zeolites(M=B,Ga,Ti,V,Cr and Fe).It is shown that a trace of aluminium plays "nucleation-assisting" role in the formation of heteroatom-containing ZSM-5 type zeolites and accelerates the crystal growth of these zeolites by means of the comparison experiments of adding Al to the system of HMDA-Na2O-MOx/2-SiO2-H2O, electron diffraction, XPSand the calculation of the crystallization kinetic model.

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