FREMGANGSMAATE TIL BEHANDLING AV EN OPPLOESNING INNEHOLDENDE EDDIKSYRE I NAERVAER AV HALOGEN

The invention relates to a process for the treatment of a solution containing acetic acid in the presence of halogens. The aim of the invention is to produce a process which makes it possible to reduce the chemical oxygen demand of this solution. This aim is achieved using a process consisting in: a) treating this solution with a solution (10) which makes it possible to reduce the halogens to halides, b) bringing, in an extraction column (2), the solution to be treated into contact with an organic solvent (8) for extraction of the acetic acid containing essentially a trialkyl phosphate and a hydrocarbon, and c) bringing, in a reextraction column (4), the solvent (14) laden with acetic acid into contact with a basic solution (16) capable of neutralising the solvent and of reextracting the sodium acetate (20) formed. This process is intended more particularly to be used in the organic synthesis industry.