C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 45/50 (2006.01) B01J 23/46 (2006.01) B01J 31/40 (2006.01) C07C 27/22 (2006.01) C07C 47/04 (2006.01)
Patent
CA 2357856
Disclosed is a process for manufacturing an aldehyde having 3 to 21 carbon atoms by hydroformylation of a corresponding olefin using a rhodium catalyst, wherein a discharge of a hydroformylation reactor (a) is separated into a gaseous phase and a liquid phase, (b) the liquid phase is separated into a top fraction containing unconverted olefins and aldehydes and a bottom fraction containing the rhodium catalyst, and (c) the bottom fraction is cooled below the temperature of the discharge of the hydroformylation reactor and a gas containing carbon monoxide is fed in. By this process, the rhodium catalyst is barely deactivated during its regeneration.
Buschken Wilfried
Kaizik Alfred
Rottger Dirk
Totsch Walter
Trocha Martin
Fetherstonhaugh & Co.
Oxeno Olefinchemie Gmbh
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