| abstract |
Process for obtaining 1,4-butanediol by catalytic hydrogenation of carbonyl compounds chosen from maleic acid, fumaric acid, succinic acid or esters or aldehydes thereof, or from the gamma-butyrolactone, characterized in that The catalyst is made up of 0.01 to 50% by weight of rhenium and 0 to 20% by weight, respectively based on the total weight of the catalyst, of at least one other metal, chosen from Zn, Cu, Ag , Au, Ni, Fe, Cr, V, on activated carbon, subjected to a previous oxidation treatment, as support. |