Ifp Energies Nouvelles

Institut Francais Du Pe'trole

David Proriol

Helene Olivier-Bourbigou

Lionel Magna

Claudine Rangheard

Lucien Saussine

Stephane Harry

Denis Uzio

Gerard Hillion

Pierre-Alain Breuil

Natacha Touchais

Hélène Olivier-Bourbigou

Christophe Gautreau

Laurent Savary

Emmanuel Pellier

Fabien Grasset

Sandrine Berard

Cedrik Popelin

Stéphane Harry

The invention pertains to a composition that comprises at least one chromium precursor, at least one heteroatomic ligand, and, optionally, at least one activator. The invention also pertains to the method for preparation of the composition in accordance with the invention and the use of said composition in a method for oligomerization of olefins.

Catalytic composition based on chromium and a ligand based on phosphine and its use in a method for producing octenes

The invention describes a process for oligomerization of olefins into compounds or into a mixture of compounds of general formula CHwith 4&#x2266;p&#x2266;80 that employs a catalytic composition that comprises at least one organometallic complex of an element of group IV that is selected from titanium, zirconium, and hafnium, wherein the organometallic complex contains at least one alkoxy-type ligand that is functionalized by a heteroatom selected from nitrogen, oxygen, phosphorus and sulfur, or by an aromatic group.

Process for oligomerization of olefins that uses a catalytic composition that comprises an organometallic complex that contains an alkoxy ligand that is functionalized by a heteroatom

A process for producing a base for a fuel from a C2 ethanol feedstock, by a first stage for oligomerization of the feedstock into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbons, and contains a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that contains a metal precursor of titanium, zirconium, hafnium, nickel and/or iron, a second stage for oligomerization of a portion of the effluent that is obtained from stage a), into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbon atoms, and containing a C10-C24 fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system.

Process for the production of a fuel base from an ethylene feedstock implementing at least one oligomerization stage in the presence of a homogeneous catalytic system

This invention describes a process for the preparation of a catalytic composition that can be used for oligomerization, codimerization, or polymerization of olefins. This invention also describes the catalytic composition that can be obtained by said process for the preparation and its use for oligomerization, codimerization, or polymerization of olefins.

Process for the preparation of a catalyst composition for dimerization, codimerization and oligomerization of olefins

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

The present invention describes novel nitrogen-containing organic compounds obtained by reacting a compound X of substituted pyridine type comprising at least one ketone function with a compound Y belonging to the aminoquinoleine family and derivatives thereof. Said organic compounds can be used as precursors in a catalytic composition.

Nitrogen-containing organic compounds usable as catalytic composition precursors

In a method for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst, used in a non-aqueous ionic liquid, liquid at a temperature below 100&#xb0; C. and comprising at least one cation Qand at least one anion A, said method comprising at least a stage of reaction under pressure and at least a stage of separation of the phases by decantation, recycling of the catalyst is improved: At the end of this process, the organic phase containing the reaction products can be recovered and the ionic liquid phase containing the catalyst can be recycled to the hydroformylation reactor.

Hydroformylation method involving a cobalt-based catalyst in a non-aqueous ionic liquid

A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group formed by liquid salts with general formula QA(in which Qrepresents a quaternary ammonium and/or quaternary phosphonium and Arepresents any anion which can form a liquid salt below 90&#xb0; C.).

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Brignais, France

David Proriol