Cobalt-Containing Molecular Sieves as Catalysts for the Low Conversion Autoxidation of Pure Cyclohexane

Authors

  • Dominic L. Vanoppen,

    1. Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Kardinaal Mercierlaan 92, B-3001 Leuven (Belgium). Telefax: Int. code + (16)32 1998
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  • Dr. Dirk E. De Vos,

    Corresponding author
    1. Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Kardinaal Mercierlaan 92, B-3001 Leuven (Belgium). Telefax: Int. code + (16)32 1998
    • Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Kardinaal Mercierlaan 92, B-3001 Leuven (Belgium). Telefax: Int. code + (16)32 1998
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  • Michel J. Genet,

    1. Unité Chemie des Interfaces, Université Catholique de Louvain (Belgium)
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  • Prof. Paul G. Rouxhet,

    1. Unité Chemie des Interfaces, Université Catholique de Louvain (Belgium)
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  • Prof. Peter A. Jacobs

    1. Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Kardinaal Mercierlaan 92, B-3001 Leuven (Belgium). Telefax: Int. code + (16)32 1998
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  • This work was supported by the Belgian Government (Interuniversitary Attraction Pole Interuniversitaire Attractiepool IUAP). We are indebted to N. F. W. O. (DEDV) and I. W. O. N. L. (DLV) for fellowships.

Abstract

Isolated and immobilized cobalt centers are the essential prerequisites for the heterognization of the industrially important catalysis of cyclohexane autoxidation. This study reveals inter alia a higher selectivity for the formation of cyclohexyl hydroperoxide and the suppression of cobalt deactivation when, instead of soluble cobalt salts, cobalt-modified aluminophosphates with low cobalt loading are employed as catalysts.

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