Institut Francais Du Pe'trole

Saudi Basic Industries Corporation

Societe Nationale Elf Aquitaine (production)

Institut Fran.cedilla.ais Du Petrole

Institut Fran&ccedil;ais Du P&eacute;trole

Institut Fran&ccedil;ais Du Petrole

Dominique Commereuc

Yves Chauvin

Lucien Saussine

Alain Forestiere

Francois Hugues

Helene Olivier

Fran&ccedil;ois Hugues

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

Jean Cosyns

Helene Olivier-Bourbigou

Gerard Leger

Dominique Le Pennec

Bernard Torck

Jean-Alain Chodorge

Andre Hirschauer

Didier Duee

Yves Glaize

Daniel Cruypelinck

Andre Sugier

Robert Stern

Jean Gaillard

Stephane Harry

Francedillaois Hugues

Nhu H Phung

Nhuong Le Quan

Hélène Olivier

Christine Travers

Lionel Magna

Jean Alain Chodorge

Sebastien Drochon

François Hugues

Fr&eacute;d&eacute;ric Favre

H&eacute;l&egrave;ne Olivier

Serge Boivineau

Gerhard Hillebrand

Gerard Provin

Vincent Coupard

Blaise Didillon

Jean-Francois Le Page

Paul Mikitenko

Pierre Boucot

Dang V Quang

Pierre Amigues

Igor Tkatchenko

B&eacute;atrice Fischer

Isabelle Guibard

Fr&eacute;d&eacute;ric Hoffmann

G&eacute;rard Hillion

Olivia Martin

Emmanuel Pellier

Georges Vidouta

Philippe Mege

Andr&eacute; Hirschauer

Katja Siepen

Fran&ccedil;ois Hughes

S&eacute;bastien Drochon

Pierre Panzarella

Jean-Pierre Soufflet

Dominique Reffet

Claude Seite

Didier Prouteau

Francois Hagues

Adberrahim Taouli

An improved catalytic composition for oligomerization, in particular dimerization, of monoolefins comprises the product resulting from bringing the following three constituents into contact in any order: the catalytic composition being pre-conditioned in a solvent before using it for oligomerization.

Catalytic composition and its application to olefin oligomerization

Composition of catalyst and solvent and catalysis processes using this composition

An improved catalytic composition for oligomerization, in particular dimerization, of monoolefins comprises the product resulting from bringing the following three constituents into contact in any order:

In a process for liquid phase carbonylation of alcohols by carbon monoxide, the carbonylation reaction is carried out in a reaction zone at a temperature of 50&#xb0; C. to 150&#xb0; C. at a pressure in the range 0.5 MPa to 20 MPa in the presence of at least one catalyst comprising at least one rhodium and/or iridium complex and a halogenated promoter in at least one non-aqueous ionic liquid comprising at least one salt with general formula QA, in which Qrepresents a quaternary ammonium and/or a quaternary phosphonium cation, said salt having a melting point of less than 90&#xb0; C.; the non-aqueous ionic liquid containing at least the major portion of the catalyst is separated; and the separated non-aqueous ionic liquid containing at least the major portion of the catalyst is returned to the reaction zone.

Process for carbonylating alcohols, employing a catalyst based on rhodium or iridium in a non-aqueous ionic liquid, with efficient catalyst recycling

For the selective production of propylene from an olefinic Cfraction, a process is implemented that successively comprises: The advantage of this process is to produce in a very selective way polymerization-quality propylene from all of the olefinic compounds of a Cfraction, including isobutene.

Process for selective production of propylene from hydrocarbon fractions with four carbon atoms

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

A catalytic composition comprising at least one nickel compound mixed or complexed with at least one tertiary phosphine or a phosphite 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 into contact with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, is useful for dimerizing, co-dimerizing and oligomerizing olefins. Functional groups include, but are not limited to, an amine, a cyclic amine, a nitrogen-containing heterocycle, an ester, an acid, an alcohol, a quaternary ammonium, a quaternary phosphonium, a sulfonium, a sulfonate or a phosphonate group.

Catalytic composition for dimerizing, co-dimerizing and oligomerizing olefins

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

A catalytic composition for the dimerization, the codimerization or the oligomerization of olefins is obtained by bringing into contact at least one nickel compound that contains a heterocyclic carbene with at least one hydrocarbylaluminum halide and optionally at least one organic solvent. It is used in a process of dimerization, codimerization or oligomerization of olefins.

Catalytic composition and process for dimerization, codimerization and oligomerization of olefins

A process is described for carrying out olefin oligomerisation in two catalysis steps of different types, using an organic feed containing at least one olefin. The cut to be treated, containing at least one olefin (C ), is introduced into a first reaction zone where, in a first step, it undergoes catalytic oligomerisation either of the homogeneous liquid phase type, or of the heterogeneous type with a solid support. The effluent produced is generally sent to a heat exchanger traversed by a cold liquid, the effluent thus being cooled before being sent to a second reaction zone where it undergoes catalytic oligomerisation in a liquid&mdash;liquid two-phase medium, the invention being characterized in that at least an ethylenic hydrocarbon containing 3 to 5 carbon atoms per molecule is added to the inlet to the second reaction zone.

Sequence of processes for olefin oligomerisation

A process for carrying out a reaction on an organic feed, for example dimerization, co-dimerization, oligomerization or metathesis of olefins, as described in which the catalyst is a catalytic metal compound dissolved in a non-aqueous ionic medium which is not or is only slightly miscible with hydrocarbons. The reaction is carried out in a system comprising at least two treatment loops each comprising at least one reaction zone and at least one zone for separating the organic and polar phases between which the polar medium containing the catalytic metal compound, and the organic phase circulate. Fresh polar phase is injected into the second loop and used polar phase is eliminated from the first loop. The hydrocarbon to be transformed is injected into the first loop and the products are withdrawn from the second loop. The invention also concerns a unit for carrying out the process.

Process and unit for carrying out a reaction on an organic feed, such as dimerization or metathesis, in the presence of a polar phase containing a catalyst

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

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Meudon, France

Dominique Commereuc