FIELD: separation of catalyst from solution containing this catalyst by means of electrodialysis through membrane. SUBSTANCE: method is used in reaction of molecular oxidation in homogeneous phase. Method consists in separation of homogeneous catalyst dissolved in medium containing at least one dihydric aliphatic acid; this catalyst contains cobalt and separation of this catalyst is effected by means of electrodialysis through membrane. EFFECT: enhanced efficiency of separation. 9 cl, 6 tbl
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