Institut Francais Du Pe'trole

H&eacute;l&egrave;ne Olivier

Dominique Commereuc

Lucien Saussine

Robert Stern

G&eacute;rard Hillion

Fr&eacute;d&eacute;ric Favre

Katja Siepen

A nickel catalytic system that makes it possible to obtain branched compounds from fatty substances by reacting simple olefins on polyunsaturated esters, which may or may not be conjugated, is described. The compounds that are obtained may be hydrogenated and used as lubricant bases or may be transformed according to known procedures into compounds of acid, alcohol, amine or amide type, used in varied applications.

Process for the codimerization of fatty substance dienes and olefins that are catalyzed by nickel complexes

A process for treatment of metathesis catalysts for olefins comprises sending the particles of catalysts through at least one vibratory helicoidal conveyor, subject the particles over at least a portion of their path and preferably over a large portion of their path to a temperature profile, and bringing the particles into contact with at least one fluid over at least a portion of their path. A vibratory helicoidal lifting device (,) makes it possible to regenerate metathesis catalysts for olefins: it 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.

Treatment of metathesis catalysts for olefins in a vibratory helicoidal conveyor

Process for the preparation of an ionic compound, Q,A,liquid at less than 150&deg; C., wherein a trialkyloxonium of the anion is reacted with an amine in a hydrocarbon solvent. The aforesaid ionic compound can be used as a solvent in numerous catalytic reactions.

Growing community of inventors

Rueil Malmaison, France

Hélène Olivier

Growing community of inventors

Rueil Malmaison, France

H&eacute;l&egrave;ne Olivier

Hélène Olivier