PHASE SEPARATION OF ORGANIC-WATER SYSTEM

PROBLEM TO BE SOLVED: To provide a method for separating an organic phase and an aqueous phase produced by an esterification. SOLUTION: At least one organic polymeric, anionic and water-soluble flocculant is used in a method for the phase separation of an organic-aqueous system containing unreacted residues of a carboxylic acid anhydride, a carboxylic acid or an alcohol used for producing an acrylate, a diacrylate, a (poly)ester acrylate or a (poly)ether acrylate and an acrylate which are substantially monomers. The flocculant is selected from a functional high-molecular weight polymer containing a carboxylic acid, a sulfonic acid, a phosphoric acid and/or a phosphonic acid functional groups and an anionic-modified polyacrylamide is preferred. The anionic flocculant has 4-22 Mda molecular weight.