AN IMPROVED PROCESS FOR OXIDIZING AROMATIC COMPOUNDS CONTAINING REACTIVE CARBON-HYDROGEN BONDS

摘要

pAn inactivation of the catalytic system easily occurs during the oxidation of reactive aromatics by means of molecular oxygen, in a carboxylic acid solution and in presence of a catalyst which, consists itself of a cobalt compound with optional addition of a manganese compound and a bromine compound, which are appropriate as co-catalyst. This inactivation of the catalytic system may be avoided by the treatment of the catalyst, after each reaction cycle, by means of a strong oxidation agent, reactivating the catalyst; the water produced by the reaction will be eliminated by distillation./p[WO8203625A1]