Activity Enhancement of a Catalyst System for the Selective Trimerization of Ethene to 1-Hexene by Modification of the Chromium to Chloride to Aluminium Ratio

Authors

  • Dr. Bernd H. Müller,

    1. Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
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  • Dr. Normen Peulecke,

    1. Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
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  • Dr. Stephan Peitz,

    1. Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
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  • Dr. Bhaskar R. Aluri,

    1. Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
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  • Prof. Dr. Uwe Rosenthal,

    Corresponding author
    1. Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
    • Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29 A, 18059 Rostock (Germany), Fax: (+49) 381-1281-51176
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  • Dr. Mohammed H. Al-Hazmi,

    1. Saudi Basic Industries Corporation, P.O. Box 42503, Riyadh 11551 (Saudi Arabia)
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  • Fuad M. Mosa,

    1. Saudi Basic Industries Corporation, P.O. Box 42503, Riyadh 11551 (Saudi Arabia)
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  • Dr. Anina Wöhl,

    1. Linde AG, Linde Engineering Division, Dr.-Carl-von-Linde-Strasse 6-14, 82049 Pullach (Germany), Fax: (+49) 89-74454981
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  • Dr. Wolfgang Müller

    Corresponding author
    1. Linde AG, Linde Engineering Division, Dr.-Carl-von-Linde-Strasse 6-14, 82049 Pullach (Germany), Fax: (+49) 89-74454981
    • Linde AG, Linde Engineering Division, Dr.-Carl-von-Linde-Strasse 6-14, 82049 Pullach (Germany), Fax: (+49) 89-74454981
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Abstract

original image

Fighting for chloride: A novel catalyst system for ethene trimerization consisting of chromium acetylacetonate, the ligand Ph2PN(iPr)P(Ph)N(iPr)H, triethylaluminium, and ionic modifiers has been investigated. Chloride has been identified as an important component of this catalytic system: An optimized [Cr]/[Cl]/[Al] ratio enhances the catalytic activity while the selectivity of the reaction remains unaffected (see scheme; acac=acetylacetonate).

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