Hydrogeneringskatalysator, især til anvendelse ved fremstilling af aromatiske ketoner, og fremgangsmåde til dens fremstilling.

摘要

A new catalyst comprises palladium metal on a substrate consisting solely of ferric hydroxides, ferric carbonates, basic ferric carbonates or mixtures thereof, the gram-atomic proportion of palladium to ferric iron being in the range of 3 to 8 gram-atoms of palladium for each gram-atom of ferric iron; and is prepared by adding a palladium-containing and a ferric-containing compound to an aqueous medium so that the solution contains palladous and ferric ions in the above proportion, and subjecting the solution to the action of an alkaline material and a reducing agent.