Method of regenerating used water-soluble hydroformylation catalysts and of stabilizing water-soluble hydroformylation catalysts to be freshly used

摘要

The invention relates to a method of regenerating used water-soluble hydroformylation catalysts and/or of stabilizing water-soluble hydroformylation catalysts to be freshly used that contain rhodium, cobalt or iridium and arylphosphines by adding the salts of aromatic sulfonic, carboxylic or phosphonous acids.