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1. (WO2013124176) METHOD AND DEVICE FOR THE HYDROFORMYLATION OF ISOBUTENE AND FOR THE SEPARATION OF THE PRODUCT MIXTURE

Pub. No.:    WO/2013/124176    International Application No.:    PCT/EP2013/052633
Publication Date: Fri Aug 30 01:59:59 CEST 2013 International Filing Date: Tue Feb 12 00:59:59 CET 2013
IPC: C07C 45/50
C07C 45/78
C07C 45/82
C07C 47/02
B01D 61/02
Applicants: EVONIK DEGUSSA GMBH
BAUMGARTEN, Goetz
GRASS, Michael
KAIZIK, Alfred
WINTERBERG, Markus
LUEKEN, Hans-Gerd
HAMERS, Bart
PRISKE, Markus
FRIDAG, Dirk
FRANKE, Robert
HESS, Dieter
Inventors: BAUMGARTEN, Goetz
GRASS, Michael
KAIZIK, Alfred
WINTERBERG, Markus
LUEKEN, Hans-Gerd
HAMERS, Bart
PRISKE, Markus
FRIDAG, Dirk
FRANKE, Robert
HESS, Dieter
Title: METHOD AND DEVICE FOR THE HYDROFORMYLATION OF ISOBUTENE AND FOR THE SEPARATION OF THE PRODUCT MIXTURE
Abstract:
The invention relates to a method for producing a product mixture (2) by means of the technical hydroformylation of a hydrocarbon stream (1) that contains isobutene, and for separating the product mixture (2) 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 (2) 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 (2), said device having especially high permeability to 3-methylbutanoic acid.