高等学校化学学报 ›› 1982, Vol. 3 ›› Issue (3): 287.

• 论文 • 上一篇    下一篇

沸石分子筛的生成机理与晶体生长(Ⅰ)—八面沸石导向剂结构的研究

徐如人, 张建民   

  1. 吉林大学化学系
  • 收稿日期:1981-04-13 出版日期:1982-08-24 发布日期:1982-08-24

THE MECHANISM OF FORMATION AND CRYSTAL GROWTH OF MOLECULAR-SIEVE-ZEOLITE(I)——THE STUDY ON THE STRUCTURE OF FAUJASITE TYPE "DIRECTING-AGENT

Xu Ruren(Hsu Rhu-reng), Zhang Jianmin   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1981-04-13 Online:1982-08-24 Published:1982-08-24

摘要: 本文首次采用固体宽谱Na23核磁共振法与电子衍射技术,研完了八面沸石导向剂胶体粒子的结构与性能,揭示了八面沸石导向剂的导向作用本质。

Abstract: 1. In this paper, the new and efficient broad line Na23-NMRtechnique was first applied to investigate the existence and growth of nucleation center with faujasite type structure in a highly disperse colloidal system and some interesting results were obtained. This technique supported a possibility to study the nucleation processes of zeolite in a colloidal system.2. The nucleation processes of the so-called "directing-agent" (highly disperse colloidal system with a composition of 16Na2O ·Al2O3· 15SiO2·320H2O) have been investigated by broad line Na23-NMR, X-ray diffraction, electron diffraction technique. The structure of the colloidal particles in the "directing-agent" system has been verified to be of the faujasite type. It is the nuclei that enable NaYtype zeolites to be formed in the starting mixture in which NaPtype zeolites should be formed.

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