高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

用高效NaY沸石导向剂快速合成A型沸石

熊晓云1, 范峰滔2, 马军3, 李彩今1, 刘淑真1, 冯兆池2, 梁德声1, 李守贵1, 肖丰收1   

    1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012;
    2. 大连化学物理研究所, 催化基础国家重点实验室, 大连 116023;
    3. 北京宝洁技术有限公司, 北京 100084
  • 收稿日期:2005-12-21 修回日期:1900-01-01 出版日期:2007-01-10 发布日期:2007-01-10
  • 通讯作者: 肖丰收

Fast Crystallization of LTA Zeolite from Highly Efficient NaY Seed Solution

XIONG Xiao-Yun1, FAN Feng-Tao2, MA Jun3, LI Cai-Jin1, LIU Shu-Zhen1, FENG Zhao-Chi2, LIANG De-Sheng1, LI Shou-Gui1, XIAO Feng-Shou1   

    1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China;
    2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian 116023, China;
    3. P & G Technology(Beijing) Ltd., Beijing 100084, China
  • Received:2005-12-21 Revised:1900-01-01 Online:2007-01-10 Published:2007-01-10
  • Contact: LI Shou-Gui

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被引次数

14

摘要： 提出了应用高效NaY沸石导向剂快速合成A型沸石的新方法. 在合成过程中, NaY沸石导向剂提供了全部硅源(无需另加硅源). 与用水玻璃提供硅源的合成方法相比, 该法晶化速度快, 合成温度低, 并可在低碱度条件下合成超细A型沸石. 29Si NMR表征和UV Raman研究表明, 高效NaY沸石导向剂中含有大量的六元环等低分子量硅铝酸根前驱体, 它们有利于A型沸石成核与晶体生长.

关键词: A型沸石, NaY沸石导向剂, 29Si NMR, UV Raman

Abstract: A new route for fast crystallization of LTA zeolite by using highly efficient NaY seed solution as a silica source was demostrated. Compared with water glass, NaY seed solution used in the synthesis of LTA zeolite shows obvious advantages including relatively short crystallization time, low crystallization temperature, small crystal size and low alkalinity. Characterization of NaY seed solution by 29Si NMR and UV Raman techniques suggests that zeolite primary building units such as six-membered ring contained in NaY seed solution possibly promote the nucleation and growth of LTA zeolite.

Key words: LTA zeolite, NaY seed solution, 29Si NMR, UV Raman

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