Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Emmanuel Pellier

Helene Olivier-Bourbigou

Dominique Commereuc

Alain Forestiere

Blaise Didillon

Bruno Delfort

Denis Uzio

Francois Hugues

Lionel Magna

Christophe Vallee

David Proriol

Didier Morvan

Hélène Olivier-Bourbigou

Olivia Martin

Claudine Rangheard

The invention concerns a process for the neutralization of a catalytic system for the oligomerization of olefins, said catalytic system comprising at least one halogenated derivative, characterized in that the reaction effluent is brought into contact with at least one nitrile compound.

Process for the neutralization of a catalytic system for the dimerization of olefins containing at least one halogenated derivative

The present invention describes a method of preparing a catalytic composition used for oligomerization, co-dimerization or polymerization of olefins, wherein the compound obtained upon contacting at least one iron compound with at least one nitrogen-containing compound is subjected to an oxidation stage prior to being mixed with an activating agent and optionally with a solvent. The present invention also describes the catalytic composition obtained by means of said preparation method and the use thereof for oligomerization, co-dimerization or polymerization of olefins.

Method of preparing a catalytic composition for dimerization, co-dimerization and oligomerization of olefins

Composition of catalyst and solvent and catalysis processes using this composition

A catalyst comprising at least one support, at least one element from groups 8, 9 or 10 of the periodic table, at least one element from group 14 of the periodic table, at least one element from group 13 of the periodic table, at least one alkali or alkaline-earth metal, and, optionally, at least one halogen in an amount in the range from 0 to 0.2% by weight with respect to the total catalyst weight, the catalyst being characterized in that the accessibility of the element from groups 8, 9 or 10 is more than 50%. The invention also concerns a process for preparing a catalyst and the use of the catalyst in a process for dehydrogenating paraffins containing 3 to 22 carbon atoms per molecule.

Catalyst comprising an element from groups 8, 9 or 10 with good accessibility, and its use in a paraffin dehydrogenation process

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Tupin Semons, France

Emmanuel Pellier