Process for the selective oligomerization of ethylene

Details Process for the selective oligomerization of ethylene Process for the selective oligomerization of ethylene

C - Chemistry, Metallurgy

07

C

C07C 2/32 (2006.01)

Patent

CA 2427094

Process for the selective oligomerization of ethylene to give .alpha.-olefins essentially consisting of C4 to C8, characterized in that it is carried out in the presence of a catalytic system comprising the complex having general formula (II): (L)M(Y)n wherein L represents the ligand having general formula (I) M represents a transition metal; Y is selected from groups of an anionic nature bound to the metal as anion in ionic couple or with a covalent bond of the ".sigma." type.

L'invention concerne un procédé pour l'oligomérisation sélective de l'éthylène pour produire des .alpha.-oléfines consistant essentiellement en C¿4? à C¿8?, lequel procédé est caractérisé en ce qu'il est mis en oeuvre en présence d'un système catalytique comprenant le complexe représenté par la formule générale (II) dans laquelle L représente le ligand représenté par la formule générale (I), M représente un métal de transition, Y est choisi dans des groupes de nature anionique liés au métal en tant qu'anion dans un couple ionique ou avec une liaison covalente de type ".sigma.".

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