高等学校化学学报

高等学校化学学报

• 研究简报 • 上一篇    下一篇

高温合成NaY沸石

熊晓云, 李彩今, 于红, 黄世英, 梁德声, 肖丰收, 李守贵   

  1. 吉林大学无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2007-01-23 修回日期:1900-01-01 出版日期:2007-09-10 发布日期:2007-09-10
  • 通讯作者: 李守贵

High Temperature Synthesis of NaY Zeolite

XIONG Xiao-Yun, LI Cai-Jin, DING Hong, HUANG Shi-Ying, LIANG De-Sheng, XIAO Feng-Shou, LI Shou-Gui*   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2007-01-23 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
  • Contact: LI Shou-Gui

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被引次数

6

摘要： 提出了应用NaY沸石导向剂提供全部硅源合成NaY沸石的新方法, 研究了高温条件下合成NaY沸石的规律和特点, 发现在高温条件下合成NaY沸石不仅晶化速度快, 而且可以在不加有机物的条件下合成较高硅铝比[n(SiO2)/n(Al2O3)=6]的NaY沸石.

关键词: NaY沸石, 硅源活化, 晶化导向剂

Abstract: This work describes a novel method to synthesize NaY zeolite at high temperature(100—140 ℃) by using NaY seeds solution as a silica source, which is also a method for the activation of silica source in the synthesis of NaY zeolite. Conventionally, the synthesis temperature of NaY zeolite from water glass is about 100 ℃, and higher temperature(>100 ℃) leads to the formation of impurity. However, this work shows that high-temperature synthesis(100—140 ℃) still exhibits a pure phase NaY. It is very interesting that, compared with conventional temperature, high-temperature in the synthesis of NaY zeolite has obvious advantages such as short crystallization time and high n(Si)/n(Al) ratio in the product. More importantly, this method is possible to extend to the synthesis of NaA, NaX, Ω, ECR-1and MOR.

Key words: NaY zeolite, Activation of silica source, Guidance agent of crystallization

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