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:
Nov. 10, 2009
Filed:
Oct. 14, 2004
Martin Volland, Heidelberg, DE;
Thomas Mackewitz, Römerberg, DE;
Wolfgang Ahlers, Worms, DE;
Ansgar Schäfer, Karlsruhe, DE;
Wolfgang Richter, Wachenheim, DE;
Rocco Paciello, Bad Dürkheim, DE;
Martin Volland, Heidelberg, DE;
Thomas Mackewitz, Römerberg, DE;
Wolfgang Ahlers, Worms, DE;
Ansgar Schäfer, Karlsruhe, DE;
Wolfgang Richter, Wachenheim, DE;
Rocco Paciello, Bad Dürkheim, DE;
BASF Aktiengesellschaft, , DE;
Abstract
The invention relates to a method for the continuous production of aldehydes by the isomerising hydroformylation in a homogenous phase of olefin compositions by means of a synthesis gas, in the presence of a homogeneous rhodium catalyst that is complexed with an organophosphorus ligand containing oxygen atoms and/or nitrogen atoms and a free ligand. The production is carried out at high temperature and high pressure in a multi-stage reaction system consisting of at least two reaction zones. According to the method, the olefin composition is first reacted in a first reaction zone or a group of several first reaction zones at a total pressure of between 10 and 40 bar, using a synthesis gas with a CO/Hmolar ratio of between 4:1 and 1:2 until a 40 to 95% conversion of the α-olefins is obtained.