| abstract |
The invention relates to a process for the selective catalytic hydrogenation of the carbonyl group of aromatic aldehydes of the form where X can be a carboxyl group, a methyl group or a halogen to the corresponding alcohols and methyl compounds. The catalytic hydrogenation is carried out with the addition of a solvent, optionally in the presence of organic acids, on a shaped supported catalyst comprising a platinum group metal on a support made of titanium oxide in the presence of hydrogen at hydrogen partial pressures of 5 to 50 bar and temperatures of 100 to 300 ° C. . |