Continuous hydroformylation process with catalyst substitution

US12006282B2 · kind B2 · utility

Assignee

• OQ Chemicals GmbH · DE

Inventors

• Alexander Hensel · Essen, DE
• Ruben Fernandez Diaz · Dinslaken, DE
• Wolfgang Greb · Dinslaken, DE
• Jörg Botterhuis · Marl, DE
• Gregor MEIER · Duisburg, DE

Key dates

• Filing date: Jul 21, 2020
• Grant date: Jun 11, 2024
• Expiry date: May 1, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/464
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a continuous two-phase hydroformylation process for the production of aldehydes from olefins by means of carbon monoxide, hydrogen and a transition metal catalyst in a reaction zone, the transition metal being in the form of a water-soluble catalyst complex, wherein the process comprising the following steps once or several times:a) hydroformylating by reacting the olefins, carbon monoxide and hydrogen over a water-soluble transition metal catalyst comprising water-soluble organophosphorus ligands in the reaction zone;b) reducing the concentration of the olefins in the reaction zone by reducing the olefin feed to the reaction zone and withdrawing at least a portion of the catalyst solution from the reaction system, wherein the catalyst solution withdrawal and olefin concentration reduction substeps may occur in this or reverse order, simultaneously or sequentially; c) feeding a solvent, a transition metal source and water-soluble organophosphorus ligands to the reaction system, wherein the feeding of the components may occur simultaneously or in any order sequentially; d) increasing the concentration of the olefins in the reaction zone by increasi…