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. 08, 2012
Filed:
Oct. 28, 2008
Andreas Fischbach, Schwindegg, DE;
Klaus Schmid, Dinslaken, DE;
Christoph Balzarek, Krefeld, DE;
Wolfgang Dukat, Oberhausen, DE;
Sandra Fürmeier, Körle, DE;
Rainer Lukas, Essen, DE;
Horst Scholz, Dinslaken, DE;
Edgar Storm, Oberhausen, DE;
Andreas Fischbach, Schwindegg, DE;
Klaus Schmid, Dinslaken, DE;
Christoph Balzarek, Krefeld, DE;
Wolfgang Dukat, Oberhausen, DE;
Sandra Fürmeier, Körle, DE;
Rainer Lukas, Essen, DE;
Horst Scholz, Dinslaken, DE;
Edgar Storm, Oberhausen, DE;
Oxea GmbH, Oberhausen, DE;
Abstract
Aldehydes are produced by unmodified rhodium catalyzed hydroformylation process in a homogeneous organic phase using a solution of unmodified rhodium catalyst and an organic acid in a total amount, calculated as acid equivalent, of from greater than 3 moles to 3000 moles of acid per mole of rhodium. The organic acid is selected from: saturated aliphatic monocarboxylic acids having from 5 to 13 carbon atoms in the molecule; saturated aliphatic dicarboxylic acids having from 5 to 13 carbon atoms in the molecule; sulphonic acids having from 1 to 12 carbon atoms in the molecule; and combinations thereof. Use of the process can lead to either a significant increase in conversion without reducing selectivity for the desired aldehyde or a reduction in the specific use of rhodium.