Catalytic trimerization and tetramerization of olefinic monomers

Catalytic trimerization and tetramerization of olefinic monomers

12341 3 2 4 1′2′3′4′1′2′3′4′A catalyst precursor composition comprising a) a source of chromium, molybdenum or tungsten; b) a first ligand having the general formula (I): (R)(R)P-X-P(R)(R)  (I) where X is a bivalent organic bridging group, Rand Rare hydrocarbyl groups, and Rand Rare aromatic groups;...

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Bibliographische Detailangaben
Hauptverfasser: De Boer, Eric Johannes Maria, Van Der Heijden, Harry, On, Quoc An, Smit, Johan Paul, Van Zon, Arie
Format: Patent
Sprache:eng
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Zusammenfassung:12341 3 2 4 1′2′3′4′1′2′3′4′A catalyst precursor composition comprising a) a source of chromium, molybdenum or tungsten; b) a first ligand having the general formula (I): (R)(R)P-X-P(R)(R)  (I) where X is a bivalent organic bridging group, Rand Rare hydrocarbyl groups, and Rand Rare aromatic groups; and c) a second ligand having the general formula (II): (R)(R)P-X′-P(R)(R)  (II) where X′ is a bridging group containing nitrogen and R, R, R and R are hydrocarbyl groups. The present invention also relates to a catalyst system comprising the catalyst precursor composition of the present invention and a cocatalyst.