Catalytic composition comprising nickel and a ligand of the phosphane complexed with nickel type, and use thereof in a olefin oligomerisation method
AssigneeIfp Energies Nouvelles
InventorsPierre-Alain Breuil, Olivia Chaumet-Martin
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Abstract
The invention concerns a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II) containing a phosphine ligand complexed with nickel, at least one Lewis base, and at least one activating agent selected from the group formed by chlorinated and brominated hydrocarbylaluminium compounds, used alone or as a mixture, in a manner such that the molar ratio of the ensemble of the Lewis base and phosphine ligand complexed with the nickel of the composition to the nickel is in the range 5 to 30. The invention also concerns the use of said catalytic composition.
Claims17
A catalytic composition comprising:
- at least one nickel precursor with an oxidation number of (+II) containing a phosphine ligand complexed with nickel,
- at least one Lewis base that is diethyl ether, methyl tert-butyl ether, tetrahydrofuran, 1,4-dioxane, isoxazole, pyridine, pyrazine, or pyrimidine,
- and at least one activating agent selected from the group formed by chlorinated and brominated hydrocarbylaluminium compounds, used alone or as a mixture,
- in a manner such that the molar ratio of the ensemble of the Lewis base and phosphine ligand provided by the nickel precursor to the nickel provided by said precursor is in the range 6 to 30.
Dependencies are inferred from the claim text.