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. 29, 2005
Filed:
Jun. 27, 2001
Helmut Walz, Ludwigshafen, DE;
Willi Schönmann, Limburgerhof, DE;
Rolf Müller, Dannstadt-Schauernheim, DE;
Roland Krokoszinski, Weisenheim a.Berg, DE;
Helmut Walz, Ludwigshafen, DE;
Willi Schönmann, Limburgerhof, DE;
Rolf Müller, Dannstadt-Schauernheim, DE;
Roland Krokoszinski, Weisenheim a.Berg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Olefins having from 2 to 8 carbon atoms are hydroformylated in a process in which (i) an olefin-containing feed in which a proportion of a saturated hydrocarbon having from 2 to 8 carbon atoms is present and also carbon monoxide and hydrogen are fed into a reaction zone and reacted in the presence of a hydroformylation catalyst, (ii) a stream consisting essentially of unreacted olefin and saturated hydrocarbon is separated off from the output from the reaction zone, (iii) the stream is separated into an olefin-enriched fraction and an olefin-depleted fraction by rectification, and (iv) at least part of the olefin-enriched fraction is recirculated to the reaction zone.