| abstract |
The invention relates to a catalyst for hydrogenating unsaturated hydrocarbons which contains, on a support, catalytically effective quantities of Pd and, optionally, of Ag. The catalyst is characterized in that the support is provided in the form of a shaped body having a trilobal cross-section, whereby the lobes are provided with continuous openings. The catalyst can be produced according to a method in which the support is impregnated with a solution consisting of the salts of Pd and, optionally, of Ag. These salts are reduced using a reducing agent, whereupon the support impregnated in such a manner is washed, dried and calcined, and if the reaction is incomplete, the oxides of Pd and Ag that are still present are reduced to the corresponding metals by heating them in a hydrogenous atmosphere. |