Patent ID: 7235703
Filing Date: 2007-06-26
Classification: B01J,C07C

Abstract:
1. A catalytic composition comprising a product devoid of ethylene, propylene and butene, said product resulting from bringing the following three constituents into contact in any order: a) a least one divalent nickel compound of the formula where R 1 is an alkyl, cycloalkyl, alkenyl, aryl, aralkyl or alkaryl radical containing up to 20 carbon atoms; b) at least one hydrocarbylaluminum dihalide wherein said hydrocarbylaluminum dihalide further contains an aluminum trihalide, the mixture of these two compounds having formula AlR c) at least one organic Bronsted acid; and preconditioning a mixture of (a), (b) and (c) obtained in a solvent, in an inert atmosphere at a temperature of 0 to 80° C., for 1 minute to 5 hours.