高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (1): 93.

• 论文 • 上一篇    下一篇

交联镓皂石表面酸性及催化性能的研究

姜廷顺1, 孙铁1, 沈剑平1, 蒋大振1, 闵恩泽2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 北京石油科学研究院
  • 收稿日期:1993-03-05 修回日期:1993-07-22 出版日期:1994-01-24 发布日期:1994-01-24
  • 通讯作者: 孙铁
  • 作者简介:姜廷顺,男,30岁,硕士,讲师.
  • 基金资助:

    中国石油化学工业总公司基金

Studies on the Surface Acidity and Catalytic Properties of Pillared Ga-Substituted Saponite

JIANG Ting-Shun1, SUNT Tie1, SHEN Jian-Ping1, JIANG Da-Zhen1, Min En-Ze2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Research Institute of Petroleum Processing, Beijing 100083
  • Received:1993-03-05 Revised:1993-07-22 Online:1994-01-24 Published:1994-01-24

摘要: 用水热法合成出两种不同镓含量的镓皂石,并用羟基铝低聚物对其进行了交联。对其表面酸性的考察发现,样品的酸量随镓含量的增加而增大;样品均含有B酸和L酸中心,交联样品的B酸中心比交联前少,对样品催化性能的研究发现,催化活性与镓含量及酸量呈顺变关系。

关键词: 交联镓皂石, 表面酸性, 裂解反应, 歧化反应

Abstract: Two Ga-substituted saponites with different amount of gallium were synthesized by hydrothermal method.The pillared clays were prepared by cross-linking with hydroxyl aluminium oligomer,The results show that the amount of acidity of the samples increases with that of gallium in the tetrahedral sheet,and both Brnsted and Lewis acid sites are present on the surfaces of the samples,and the Bacid sites decrease after cross-linking with Al(13) oligomer.The studies on the catalytic properties show that the activity is correlative to the amount of gallium in the tetrahedral sheet.

Key words: Cross-linking Ga-substituted saponite, Surface acidity, Cracking reaction, Disproportionation reaction

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