A catalyst for the catalytic hydrogenation of 1,4 - butynediol at 1,4 butanediol -

摘要

P catalyst for the catalytic hydrogenation of 1,4 - butynediol hoch2 c = cch2 oh 1,4 butanediol - hoch2 ch2 - ch2 ch2 oh which consists essentially of ruthenium and of palladium in a weight ratio of the ruthenium, palladium, of more than 1: 1 and in particular of 4: 1). / p & & p & this catalyst makes it possible to carry out this hydrogenation at temperatures and under moderate pressures. / p