| abstract |
PCT No. PCT/EP82/00058 Sec. 371 Date Jul. 23, 1982 Sec. 102(e) Date Jul. 23, 1982 PCT Filed Mar. 23, 1982 PCT Pub. No. WO82/03625 PCT Pub. Date Oct. 28, 1982.In the oxidation of reactive aromatics with molecular oxygen in carboxylic acid solution in the presence of a catalyst consisting of a cobalt compound and possibly with addition of a manganese and a bromine compound suitable as Co-catalyst, an inactivation of the catalyst system readily occurs. This is prevented in that after each reaction cycle the catalyst is reactivated by treatment with a strong oxidant and the water formed in the reaction is removed by distillation. |