Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Hélène Olivier-Bourbigou

Alain Forestiere

Yves Chauvin

Bruno Delfort

Lucien Saussine

Lionel Magna

Vincent Lecocq

Christophe Vallee

Natacha Touchais

David Proriol

Gérard Hillion

Didier Morvan

Catherine Santini

Emmanuel Pellier

Virginie Kruger-Tissot

Claudine Rangheard

Pierre Dixneuf

Christine Bibal

Sandrine Berard

Cedrik Popelin

Stéphane Harry

Cyril Thuriez

In order to produce both an olefinic fraction and a composition of diacids or diesters of fats, a process is carried out which comprises, in succession: Of particular application to an oleic sunflower oil, an oleic rapeseed oil or to a mixture of mono-alcohol esters of said oils, whereupon the process can produce both an olefinic fraction (mainly composed of 1-decene) and a composition of diesters or diacids wherein, in general, over half of the chains is constituted by unsaturated Cchains (mainly composed of octadecene-9 1,18-iacid or diester) and to recycle the ethylene employed.

Process for co-producing olefins and diesters or diacids starting from unsaturated fats

A process is described in which an unsaturated fat is reacted in a homometathesis reaction in the presence of at least one non-aqueous ionic liquid to produce both an olefinic fraction and a composition of monoalcohol diesters or diacids. Particular application to a mixture of esters of an oleic sunflower seed oil or an oleic rapeseed oil, the process producing both an olefinic fraction and a composition of monoalcohol diesters or diacids wherein, in general, more than half of its chains is constituted by unsaturated Cchains.

Process for co-producing olefins and diesters or diacids by homomethathesis of unsaturated fats in non-aqueous ionic liquids

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 composition for use in dimerizing, co-dimerizing or oligomerizing olefins comprises: The composition can also comprise a nitrogen-containing ligand. It can be used in dimerizing, co-dimerizing, oligomerizing and in polymerizing olefins.

Catalyst composition for dimerizing, co-dimerizing, oligomerizing and polymerizing olefins

A catalyst composition for use in dimerizing, co-dimerizing or oligomerizing olefins results from dissolving a nickel compound, optionally mixed or complexed with a ligand, in a medium resulting from mixing:

Catalyst composition containing an aluminoxane for dimerizing, co-dimerizing and oligomerizing olefins

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Rueil Malmaison, France

Hélène Olivier-Bourbigou