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. 31, 2016
Filed:
Feb. 11, 2013
Goetz Baumgarten, Haltern am See, DE;
Michael Graβ, Haltern am See, DE;
Alfred Kaizik, Marl, DE;
Markus Winterberg, Datteln, DE;
Hans-gerd Lueken, Marl, DE;
Bart Hamers, Horst, NL;
Markus Priske, Mobile, AL (US);
Dirk Fridag, Haltern am See, DE;
Robert Franke, Marl, DE;
Dieter Hess, Marl, DE;
Goetz Baumgarten, Haltern am See, DE;
Michael Graβ, Haltern am See, DE;
Alfred Kaizik, Marl, DE;
Markus Winterberg, Datteln, DE;
Hans-Gerd Lueken, Marl, DE;
Bart Hamers, Horst, NL;
Markus Priske, Mobile, AL (US);
Dirk Fridag, Haltern am See, DE;
Robert Franke, Marl, DE;
Dieter Hess, Marl, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The invention relates to a method for producing a product mixture () by means of the technical hydroformylation of a hydrocarbon stream () that contains isobutene, and for separating the product mixture () that is obtained, as well as to a device for the claimed method and to the use of a claimed device. The problem addressed thereby is that of providing a method and an associated device that allow the amount of high-boiling substances in the product mixture () to be kept as low as possible and thus the yield of the reaction to be increased. The problem is solved by the use of a nano-filtration device (M) for separating the catalyst from the product mixture (), said device having especially high permeability to 3-methylbutanoic acid.