| abstract |
The invention relates to a process for preparing a supported catalyst, in particular for the polymerization and / or copolymerization of olefins, comprising the steps: a) preparation of a hydrogel; b) milling the hydrogel into a fine particulate hydrogel; c) producing a slurries based on the fine-particle hydrogel; d) drying the slurries comprising the fine particulate hydrogel to obtain the catalyst support; e) production of the supported catalyst by applying at least one transition metal and / or at least one transition metal compound to the support for catalysts and optionally activating, wherein in step b) a fine particle hydrogel is produced, wherein: - At least 5 vol .-% of the particles, based on the total volume of the particles, a particle size in the range of> 0 microns to ≦ 3 microns and / or - At least 40 vol .-% of the particles, based on the total volume of the particles, a particle size in the range of> 0 μum to ≦ 12 microns and / or - At least 75 vol .-% of the particles, based on the total volume of the particles, a particle size in the range of> 0 microns to ≦ 35 microns and wherein, in step e), a carrier for catalysts preparable according to steps a) to d) is used. |