| abstract |
The present invention comprises from 5 to 100% by weight of copper oxide, preferably from 40 to 90% by weight and an element of Al, Si, Zn, Pd, La, Ce, Groups IIIA to VIIIA and Groups IA to IIA C 4 , characterized in that it comprises 0 to 95%, preferably 10 to 60%, by weight of at least one metal, or compound thereof, as an active composition, said composition being deposited in the form of a thin layer on an inert support. A catalyst for the hydrogenation of dicarboxylic acids and / or derivatives thereof, preferably maleic anhydride, in the gas phase. |