Disclosed is a method for the hydroformylation of olefins comprising 2 to 8
atoms, whereby a) an inflow containing olefins and a gas mixture
containing hydrogen and carbon monoxide are fed into a reaction zone and
reacted in the presence of a hydroformylation catalyst, b) the reaction
product which is released from the raw hydroformylation product is
redirected into the reaction zone during the extraction of a gaseous
recovery flow. The inventive method is characterised in that c) the
recovery flow is brought into intimate contact with a wash liquid in order
to eliminate the unreacted olefins contained therein, the wash liquid
being a vented hydroformylation product, and the olefin-charged wash
liquid and the raw hydroformylation product are redirected for
regeneration. Said inventive method enables unreacted olefins to be
reclaimed to a large extent from the recovery flow.
