Reaction Kinetics and Catalysis Letters

, Volume 37, Issue 2, pp 411–416 | Cite as

Textural properties and surface acidity of AlPO4−Al2O3 catalysts modified with urea

  • J. M. Campelo
  • J. M. Marinas
Article
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Abstract

The presence of urea during the gelling of AlPO4−Al2O3 catalysts (AlPO4/Al2O3 weight ratio =3) has been studied with respect to its effect on the porous texture and surface acidity of the resulting gels. An increase in pore volume and mean pore radius with no modification in surface acidity is found when the AlPO4−Al2O3 catalyst is modified by the addition of 5 mol% urea in the AlPO4 solution.

Keywords

Physical Chemistry Urea Al2O3 Catalysis Acidity 

Abstract

Исследовали эффект мочевины, присутствующей при желатинировании катализаторов AlPO4/Al2O3 (весовое соотношение AlPO4/Al2O3=3) на пористую структуру и поверхностную кислотность образующихся гелей. Найдено, что при модифицировании катализатора AlPO4/Al2O3 добавкой 5 мол.% мочевины к раствору AlPO4 происходит увеличение объема пор и среднего радиуса пор без какого-либо изменения поверхностной кислотности.

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Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • J. M. Campelo
    • 1
  • J. M. Marinas
    • 1
  1. 1.Organic Chemistry DepartmentCordoba UniversityCordobaSpain

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