高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (10): 1916.

• 研究论文 • 上一篇    下一篇

填料型固体酸的制备及其催化性能

杜长海1, 王树江2, 杨骥3, 秦永宁1, 贺岩峰2, 马智1   

  1. 1. 天津大学化工学院, 天津300072;
    2. 长春工业大学化工学院, 长春130012;
    3. 吉林省环境科学研究院, 长春130012
  • 收稿日期:2003-09-04 出版日期:2004-10-24 发布日期:2004-10-24
  • 基金资助:

    吉林省科技厅自然科学基金(批准号:19990557)资助

Preparation of Filler-type Solid Acid for Catalytic Distillation and Its Catalytic Activity

DU Chang-Hai1, WANG Shu-Jiang2, YANG Ji3, QIN Yong-Ning1, HE Yan-Feng2, MA Zhi1   

  1. 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2. School of Chemical Engineering and Technology, Changchun University of Technology, Changchun 130012, China;
    3. Jilin institute of Environmental Science, Changchun 130012, China
  • Received:2003-09-04 Online:2004-10-24 Published:2004-10-24

摘要: 用阳极氧化法制备了填料式Al2O3-Al载体,经浸渍H2SO4后再焙烧制得SO42-/Al2O3-Al固体酸催化剂.用SEM,BET,XRD和NH3-TPD等手段对其进行了表征,结果显示,载体Al2O3膜为无定形结构,SO42-/Al2O3-Al为中等酸强度的固体酸.用乙酸-乙醇酯化催化反应评估了该固体酸的催化性能,显示出催化剂具有较高的催化活性,且稳定性较好.

关键词: 阳极氧化, 固体酸, 催化精馏, 酯化反应

Abstract: A novel solid acid SO42-/Al2O3-Al catalyst for catalytic distillation was prepared by impregnation of anodized aluminium plates formed by anodic oxidation of high-purity aluminium foils with aqueous H2SO4, and characterized by SEM, BET, XRD and NH 3-TPD. XRD patterns of the samples show that the support anodized Al2O3 layer is amorphous oxide supporting. NH 3-TPD results show that the catalyst has intermediate acid sites. The catalyst was active for the esterification of acetic acid with ethanol, and can be reused directly for 5 times, which means the catalyst has a good stability.

Key words: Anodic oxidization, Solid acid, Catalytic distillation, Esterification

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