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:
Apr. 07, 2026
Filed:
Feb. 23, 2022
Dow Technology Investments Llc, Midland, MI (US);
Jason F. Giles, Missouri City, TX (US);
Glenn A. Miller, South Charleston, WV (US);
Dow Technology Investments LLC, Midland, MI (US);
Abstract
This disclosure relates to continuous hydroformylation processes. In one aspect, a continuous hydroformylation process comprises: (a) contacting CO, H, and at least one olefin in the presence of a hydroformylation catalyst in a reaction fluid in at least two reaction zones under hydroformylation conditions sufficient to form at least one aldehyde product, wherein the hydroformylation catalyst comprises a catalytic metal and a ligand and wherein a reaction temperature in the first reaction zone is controlled using a first heat exchanger; and (b) recovering at least a portion of the hydroformylation catalyst from a product stream and recycling at least a portion of the recovered hydroformylation catalyst through the first reaction zone. The heat evolution in the first reaction zone is reduced by reducing the reaction rate in the first reaction zone and increasing the reaction rate in a downstream reaction zone to insure sufficient heat removal capacity remains on the heat exchanger in the first reaction zone to insure stable control of the reaction at a target reaction temperature.