Abstract: A countercurrent extraction column for a liquid-liquid extraction of two phases which are insoluble in each other with simultaneous electrolysis. The column comprises an outer tube, an inner tube within the outer tube, with the inner tube dividing the column into an inner anode chamber and an outer cathode chamber which encloses the anode chamber without the use of a diaphragm. A plurality of bores establish communication between the anode chamber and the cathode chamber. An anode is provided in the anode chamber and a cathode is provided in the cathode chamber. A hollow sheet metal cylinder is disposed around the inner tube in the area of the bores between the cathode chamber and the anode chamber. The cylinder acts as a cathode cylinder member and is chargeable in its interior by one of the phases through bores located at the top of the cathode cylinder. Sheet metal strips are attached in a radially inwardly extending manner to the interior surface of the cathode cylinder.