MEHRSTUFIGES VERFAHREN ZUR HERSTELLUNG VON OXO- ALDEHYDEN UND/ODER ALKOHOLEN

摘要

A multistage cobalt- or rhodium catalyzed hydroformylation of 6-24C olefins to alcohols and aldehydes comprises hydroformylation, catalyst removal, separation of the mixture into a low boiling fraction containing olefins and a sump fraction containing aldehyde and alcohol, reaction of the low boiling fraction in further process stages and combining all sump fractions from all process stages. A multistage cobalt- or rhodium catalyzed hydroformylation of 6-24C olefins to alcohols and aldehydes comprises: (A) hydroformylation of the olefin to a conversion of 20-98%; (B) removal of the catalyst from the resulting reaction mixture; (C) separation of the resulting reaction mixture into a low boiling fraction containing olefins and paraffins and a sump fraction containing aldehyde and alcohol; and (D) reaction of the low boiling fraction containing olefin in further process stages comprising steps (A), (B) and (C) and combining all sump fractions from step (C) of all process stages.