SUPPORTED CATALYST CONTAINING RHENIUM AND ALUMINUM, PREPARATION METHOD AND APPLICATION TO OLEFIN METATHESIS

摘要

Catalyst supported on rhenium and also containing aluminum introduced by a compound of formula (RO) q AlR'r with R remains hydrocarbyl of 1 to 40 carbon atoms, R 'remains alkyl of 1 to 20 carbon atoms, q and r equal to 1 or 2 with q + r = 3. BR/ Process for the preparation of a catalyst comprising the following stages: impregnation of a rhenium compound on a porous support constituted by refractory oxides and / or alumino -silicates having an acidic, neutral or basic character, calcination at a temperature of 200 to 950 deg.C, impregnation with said aluminum compound. Application to the metathesis of olefins.