高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (1): 152.

• 研究快报 • 上一篇    下一篇

MFI分子筛前驱体对Y型沸石分子筛表面的修饰及其催化性质

林森, 殷成阳, 王利丰, 蒋大振, 肖丰收   

  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 130023
  • 收稿日期:2004-09-03 出版日期:2005-01-10 发布日期:2005-01-10
  • 通讯作者: 肖丰收(1963年出生),男,博士,教授,博士生导师,从事无机化学研究.E-mail:fsxiao@mail.jlu.edu.cn E-mail:fsxiao@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20173022)资助

Modification of Zeolite Y Impregnated by Preformed MFI Alumino-silicate Precursors and Catalytic Properties in Benzene Alkylation with Isopropanol

LIN Sen, YIN Cheng-Yang, WANG Li-Feng, JIANG Da-Zhen, XIAO Feng-Shou   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2004-09-03 Online:2005-01-10 Published:2005-01-10

关键词: 烷基化, 分子筛, 沸石分子筛前驱体

Abstract: A novel method for increasing the conversion and optimizing the product distribution over the catalyst of zeolite Y modified by MFI aluminosilicate precursors in the reaction of benzene alkylation with isopropanol is reported. The catalyst(PASP MFI/Y) is prepared from the impregnation of zeolite Y with preformed MFI aluminosilicate nanoclusters. The characterization of temperature-programmed desorption of ammonia shows that the PASP MFI/Y exhibits a stronger acidity than Y zeolite does. The catalytic results show that the PASP MFI/Y exhibits a more excellent activity(conversion for isopropanol and toluene) and shape selectivity(p-and m-cymene) in the reaction than zeolite Y.

Key words: Alkylation, Zeolite, Preformed aluminosilicate precursors

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