Process for selective dimerization of propylene principally into branched dimers
AssigneeInstitut Francais du Petrole
InventorsDominique Commereuc, Dominique Le Pennec, Helene Olivier-Bourbigou
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Abstract
In order to carry out selective dimerization of propylene principally into branched dimers, a catalytic composition resulting from at least partly dissolving a nickel compound mixed or complexed with a tertiary phosphine carrying a functional group is used in a medium resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide and optionally at least one organometallic aluminum compound.
Claims19
A process for selective dimerization of propylene principally into branched dimers characterized in that the propylene is brought into contact with a catalytic composition comprising at least one nickel compound mixed or complexed with at least one tertiary phosphine carrying a functional group, at least partly dissolved in a non aqueous medium with an ionic nature resulting from bringing at least one aluminum halide (product B) into contact with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide (product A).
Dependencies are inferred from the claim text.