Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Institut Fran&ccedil;ais Du Petrole

Lucien Saussine

Dominique Commereuc

Yves Chauvin

Francois Hugues

Lionel Magna

Fran&ccedil;ois Hugues

Helene Olivier-Bourbigou

Helene Olivier

Hubert Mimoun

Alain Forestiere

Andre Hirschauer

David Proriol

H&eacute;l&egrave;ne Olivier-Bourbigou

Hélène Olivier-Bourbigou

Yves Glaize

Alain Robine

Pierre Braunstein

Francedillaois Hugues

Virginie Kruger-Tissot

Fredy Speiser

Gerhard Hillebrand

Serge Boivineau

Blaise Didillon

Natacha Touchais

Isabelle Guibard

Stephane Harry

Sebastien Drochon

Jean-Benoit Cazaux

H&eacute;l&egrave;ne Olivier

Fr&eacute;d&eacute;ric Favre

Hélène Olivier

Séverine Guibert

Andr&eacute; Hirschauer

Cedrik Popelin

S&eacute;bastien Drochon

Sébastien Drochon

Sandrine Berard

Pierre Panzarella

Jean P Laloz

Jean J Rouxel

Erick Daire

Jacques G De Luzinais

Severine Guibert

Stéphane Harry

Hélène Olivier Bourbigou

The invention describes a process for oligomerization of the olefins into compounds or into a mixture of compounds of general formula CpH2p with 4&#x2266;p&#x2266;80 that implements a catalytic composition that comprises at least one organometallic complex of an element of group IV that is selected from among titanium, zirconium, or hafnium, whereby said organometallic complex contains at least one aryloxy-type (or phenyloxy-type) ligand that is functionalized by a heteroatom that is selected from among nitrogen, oxygen, phosphorus or sulfur or by an aromatic group.

Process for oligomerization of olefins that uses a catalytic composition that comprises an organometallic complex that contains a phenoxy 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

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 hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst is carried out in a non-aqueous ionic liquid which is a liquid at a temperature below 90&#xb0; C. and comprises at least one ammonium and/or phosphonium and/or sulfonium cation Qand at least one anion A; catalyst recycling is improved by using a ligand selected from the group consisting of Lewis bases and employing a depressurization step between the pressurized reaction step and the step for separating the phases by decanting. At the end of said depressurization step, the organic phase is separated in the decanting step and the non-aqueous ionic liquid containing the catalyst can be re-used.

Hydroformylation process employing a cobalt-based catalyst in a non-aqueous liquid with improved catalyst recycling

A catalyst for the oligomerization of olefins, especially ethylene contains:

Organometallic complexes that comprise bidentate chelating ligands that combine a nitrogen-containing heterocyclic compound with an alcohol and their use for catalyzing the oligomerization of olefins

A catalytic composition for oligomerizing ethylene, in particular to 1-hexene, is obtained by mixing at least one chromium carboxylate characterized in that it also contains a free carboxylic acid in a set proportion, with at least one aryloxy compound of an element M selected from the group formed by magnesium, calcium, strontium and barium, with general formula M(RO)Xin which RO is an aryloxy radical containing 6 to 80 carbon atoms, X is a halogen atom or a hydrocarbyl radical containing 1 to 30 carbon atoms and n is a whole number that can take the values 0 or 1, and with at least one hydrocarbylaluminum compound selected from the group formed by tris(hydrocarbyl)-aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.

Catalytic composition and process for oligomerizing ethylene, in particular to 1-hexene

A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8&#x2033; and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.

Organometallic complexes comprising phosphonite ligands, and their use in catalyzing olefin oligomerization

A vibratory helidcoidal lifting device () suitable for regenerating metathesis catalysts for olefins, comprises a combustion zone () and a calcination zone (), as well as a preheating zone, a zone for stripping hydrocarbons and a zone for cooling the catalyst, but no zone for introducing a gas containing a halogenated compound.

Vibratory helicoidal conveyor for treatment of metathesis catalysts for olefins

A catalytic composition is obtained by mixing at least one chromium compound with at least one aryloxy compound of an element M selected from the group formed by magnesium, calcium, strontium and barium, with general formula M(RO) X , where RO is an aryloxy radical containing 6 to 80 carbon atoms, X is a halogen or a hydrocarbyl radical containing 1 to 30 carbon atoms and n is a whole number that can take values of 0 to 2, and with at least one aluminum compound selected from hydrocarbylaluminum compounds (tris(hydrocarbyl)-aluminum, chlorinated or brominated hydrocarbylaluminum compounds) and aluminoxanes. The catalytic composition can be used in an ethylene oligomerization process, in particular to produce 1-hexene.

Catalytic composition and a process for oligomerizing ethylene, in particular to 1-hexene

Production of high-purity isobutene and propylene from hydrocarbon fractions with four carbon atoms

An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90&deg; C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.

Catalyst based on cobalt and/or rhodium employed in a two-phase medium

The present invention provides a catalyst and a process for metathesis of olefinic C cuts. The catalyst contains rhenium, caesium and delta alumina. The preferred catalyst contains at least one rhenium compound deposited on a support principally composed of alumina, treated at a temperature of more than 750&deg; C., and modified by at least one caesium compound. Thus the duration of the cycle between two regeneration operations is substantially increased. Application to a process for the production of propylene from an olefinic C cut in three steps: selective hydrogenation of butadiene with isomerisation of 1-butene to 2-butene, separation by distillation of the major portion of the isobutene, and metathesis of the cut rich in 2-butene with ethylene.

Rhenium-and caesium-based metathesis catalyst and a process for converting C4 olefinic cuts by metathesis

In an improved process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium employed in a two-phase medium, a catalyst based on cobalt and/or rhodium is used dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90&deg; C., in which the aldehydes formed are slightly soluble or insoluble. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion. At the end of the reaction, the organic phase is generally separated and the ionic non-aqueous solvent phase containing the catalyst can be re-used.

Process for hydroformylation using a catalyst based on cobalt and/or rhodium employed in a two-phase medium

In a process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium co-ordinated by at least one ligand selected from the group formed by nitrogen-containing or phosphorus-containing ligands used in a non-aqueous ionic solvent, which catalyst is liquid at a temperature of less than 90&deg; C., in which the aldehydes formed are not or are only slightly soluble and which comprises at least one quaternary ammonium and/or phosphonium cation Q and at least one anion A , the improvement of the invention consists in that in the cobalt and/or rhodium complex, the ligand also carries an ionic function (Q&prime;) (A&prime;) where Q and Q&prime; and/or A and A&prime; are chemically identical.

Hydroformylation process employing a catalyst based on cobalt and/or rhodium in a non-aqueous ionic solvent

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Croissy sur Seine, France

Lucien Saussine