Process for the preparation of supported catalysts
AssigneeBasell Polyolefine GmbH
InventorsShahram Mihan, Volker Fraaije, Harald Schmitz
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Abstract
The present invention refers to a process for the preparation of supported catalysts for the polymerization of olefins comprising at least a late transition metal complex, wherein the process comprises two steps. In the first step a catalytically active component comprising at least one late transition metal complex, optionally in the presence of one or more cocatalysts is mixed with a support; and in the second step the obtained mixture is treated at a reduced pressure under a flow of inert gas at a temperature equal to or below 40° C. to obtain a supported catalyst. The method is especially useful for the preparation of dual supported catalysts, useful in the gas-phase polymerization of olefins.
Claims7
A process for preparing a supported catalyst solid for the polymerization of olefins, the process comprising the following steps:
- preparing in a first step a mixture containing a catalytically active component comprising at least one late transition metal complex, a solvent, and a support;
- and
- treating in a second step the obtained mixture at a reduced pressure under a flow of inert gas at a temperature below 40° C. to obtain a supported catalyst.
Dependencies are inferred from the claim text.