Verfahren zur Herstellung von Aldehyden

摘要

The invention relates to a method for producing aldehydes. According to the inventive method, olefinically unsaturated compounds with 3 to 20 carbon atoms are reacted with carbon monoxide and hydrogen at a temperature of 40 to 200 DEG C and a pressure of 1 to 50 MPa in the presence of an aqueous hydroformylating catalyst system that contains rhodium and arylphosphines. Said catalyst system additionally contains the salts of aromatic sulfonic, carboxylic or phosphonous acids dissolved therein. The invention further relates to a catalyst system that contains rhodium, arylphosphines and the salts of aromatic sulfonic, carboxylic or phosphonous acids.