Characterization of zirconium sulfate supported on TiO2 and activity for acid catalysis

被引:9
作者
Sohn, JR [1 ]
Lee, DG [1 ]
机构
[1] Kyungpook Natl Univ, Coll Engn, Dept Ind Chem, Taegu 702701, South Korea
关键词
Zr(SO4)(2)/TiO2 catalyst; characterization; acid catalysis; 2-propanol dehydration; cumene dealkylation;
D O I
10.1007/BF02706933
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of Zr(SO4)(2)/TiO2 catalysts were prepared by impregnation of powder TiO2 with an aqueous solution of zirconium sulfate. No diffraction line of zirconium sulfate was observed up to 30 wt%, indicating good dispersion of Zr(SO4), on the surface of TiO2. The high catalytic activities of Zr(SO4)(2)/TiO2 for both 2-propanol dehydration and cumene dealkylation were related to the increase of acidity and acid strength due to the addition of Zr(SO4)(2). Zr(SO4)(2)/TiO2 containing 25% zirconium sulfate and calcined at 400 degreesC exhibited maximum catalytic activities for 2-propanol dehydration and cumene dealkylation. The catalytic activities for these reactions were correlated with the acidity of catalysts measured by the ammonia chemisorption method.
引用
收藏
页码:1030 / 1036
页数:7
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