Method for making a catalyst

摘要

The invention relates to a method for making a catalyst which contains palladium and/or its compounds and, if desired, additionally gold and/or gold compounds and which contains as activators alkali metal compounds and, if desired, additionally cadmium compounds on a support which is composed of SiO2 or an SiO2-Al2O3 mixture having a surface area of 50-250 m2/g and a pore volume of 0.4-1.2 ml/g and whose particles have a particle size of 4 to 9 mm, 5 to 20% of the pore volume of the support being formed of pores having radii of 200 to 3000 ANGSTROM and 50 to 90% of the pore volume being formed of pores having radii of 70 to 100 ANGSTROM . The support particles are compressed with the aid of an Li, Mg, Al, Zn or Mn salt of a C2-C20 carboxylic acid or a mixture of such salts as binder.