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:
May. 03, 2016
Filed:
Sep. 09, 2013
Applicant:
Dow Technology Investments Llc, Midland, MI (US);
Inventors:
Glenn A. Miller, South Charleston, WV (US);
Thomas C. Eisenschmid, Cross Lanes, WV (US);
Michael A. Brammer, Lake Jackson, TX (US);
Rick B. Watson, Missouri City, TX (US);
Assignee:
Dow Technology Investments LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/30 (2006.01); C07C 45/50 (2006.01);
U.S. Cl.
CPC ...
C07C 45/505 (2013.01);
Abstract
A process for stabilizing a phosphite ligand against degradation in a hydroformylation reaction fluid, said process comprising adding an epoxide to the reaction fluid, and further comprising separating one or more phosphorus acidic compounds from the reaction fluid by treating the reaction fluid with an aqueous buffer solution under conditions sufficient to neutralize and remove at least some amount of the phosphorus acidic compounds from the reaction fluid.