Catalytic compositions based on compounds of rhenium and aluminium, preparation thereof and use thereof for the metathesis of olefins
AssigneeInstitut Francais du Petrole
InventorDominique Commereuc
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Abstract
The present invention concerns new catalytic compositions containing at least one compound of rhenium and aluminium corresponding to the general formula: O.sub.3 Re--O--Al(OR)(L).sub.x --O!.sub.n --ReO.sub.3 in which R is a hydrocarbyl residue, for example alkyl, cycloalkyl, alkenyl, aryl and aryl or cycloalkyl which are substituted, containing from 1 to 40 carbon atoms, which residue can be substituted by alkoxy groups or by halogens, L is the synthesis solvent, x is equal to 0 or 1 and n is an integer of from 1 to 10. The invention also concerns the preparation of such compositions and the use thereof for the metathesis of olefins in a homogeneous phase.
Claims23
A catalyst composition comprising at least one unsupported rhenium/aluminum compound of the formula:
- O.sub.3 Re--O--Al(OR)(L).sub.x --O!.sub.n --ReO.sub.3
- wherein R is aryl of up to 40 carbon atoms, optionally substituted by alkyl, alkoxy or halogen, n is an integer of from 1 to 10, x is equal to 0 or 1 and L represents synthesis solvent.
Dependencies are inferred from the claim text.