Patent ID: 6649560
Filing Date: 2003-11-18
Classification: B01J,C07C

Abstract:
A bulk catalyst comprising chromium and nickel, obtained by impregnation of an amorphous chromium III oxide with a solution of a nickel compound,wherein the chromium oxide used exhibits a BET specific surface of greater than 150 m2/g and a pore volume of greater than 0.15 ml/g, wherein the catalyst is dried under an inert gas or under air at a temperature of between 100 and 350Â° C. and then activated with HF, and wherein the HF is first introduced diluted in air or, optionally, in an inert gas at a temperature ranging from 150 to 200Â° C. and then pure HF at a temperature of less than 400Â° C.; further wherein the Ni/Cr atomic ratio is between 0.02 and 0.4:1.