Method for metathesis of compounds containing an olefinic...

C - Chemistry – Metallurgy – 07 – C

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C07C 11/06 (2006.01)

Patent

CA 2572110

The invention relates to a method for metathesis of one or several reagents comprising a linear or branched hydrocarbon chain containing a double olefinic bond Csp2= Csp2 consisting in reacting said reagent or reagents with a supported metal compound comprising an aluminium oxide-based support to which a tungsten hydride is grafted. Typically, each said reagent or reagents comprises from 2 to 30 carbon atoms. The reagent can be embodied in the form of olefin. The inventive method can be used, for example for producing propylene from ethylene and butane.

ABREGE DESCRIPTIF Procédé de métathèse de composés comportant une double liaison oléfinique, notamment d'oléfines La présente invention concerne un procédé de métathèse d'un ou plusieurs réactifs comportant une chaîne hydrocarbonée linéaire ou ramifiée comportant une double liaison oléfinique Csp2= Csp2, dans lequel on fait réagir ce ou ces réactifs avec un composé métallique supporté comprenant un support à base d'oxyde d'aluminium sur lequel est greffé un hydrure de tungstène. Typiquement, le ou les réactifs comportent chacun de 2 à 30 atomes de carbone. Le réactif peut être notamment une oléfine. Par exemple le procédé produit du propylène à partir d'éthylène et de butène.

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