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US 11,951,466 B2Granted
Process for regenerating a catalyst for the hydroformylation of olefins in the gas phase
AssigneeEvonik Oxeno GmbH
InventorsRobert Franke, Linda Arsenjuk, Jessika Schüller, Frank Stenger, Vinzenz Fleischer, Marc Oliver Kristen
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Abstract
The present invention relates to a simple process for regenerating a hydroformylation catalyst consisting of a heterogenized catalyst system on a support consisting of a porous ceramic material. The invention also relates to a process for the start-up of the hydroformylation reaction after regeneration according to the invention.
Claims20
A process for regenerating a hydroformylation catalyst consisting of a heterogenized catalyst system, in a vessel,
- wherein the catalyst system comprises a metal of Group 8 or 9 of the Periodic Table of the Elements and at least one organic phosphorus-containing ligand and is present heterogenized on a support, wherein the support consists of a porous ceramic material and is in the form of granules or in the form of a monolith,
- wherein the process comprises at least the following steps:
- a) filling the vessel with a solution consisting of the phosphorus-containing ligand and a solvent, and allowing it to stand for at least one hour, and
- b) discharging the solution from the vessel.
1 more element
Dependencies are inferred from the claim text.