The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Nov. 30, 2021
Oxea Gmbh, Monheim am Rhein, DE;
Dennis Vogelsang, Dülmen, DE;
OXEA GmbH, , DE;
Abstract
The present invention relates to a process for the preparation of polycyclic aliphatic dialdehydes by hydroformylation of polycyclic aliphatic diolefins in the presence of synthesis gas over an organophosphorus ligand modified metal catalyst system having a transition metal of the 8-10subgroup, wherein the hydroformylation is carried out by means of a water-soluble diphosphine or triarylphosphine complex catalyst at a pressure of greater than or equal to 0.5 MPa and less than or equal to 10 MPa and at a temperature of greater than or equal to 70° C. and less than or equal to 150° ° C. in a homogeneous liquid reaction phase, the homogeneous liquid phase comprising at least one non-aqueous solvent, diolefin and/or mono- and/or dialdehydes thereof as reaction products and an aqueous catalyst solution, the proportions of these components in the solution being controlled so as to obtain a single-phase solution under the reaction conditions.