ELECTROCHEMICAL RECOVERING METHOD OF SALTS AND DEVICE THEREFOR

摘要

PURPOSE: To provide a method and device for electrochemically recovering salts containing no impurities more economically than a conventional salts recovering. CONSTITUTION: A gas diffusion electrode 27 is used as an anode of an electrolytic cell 21 separated into an anode chamber 23, an intermediate chamber 24 and a cathode chamber 26 by an anion exchange membrane 22 and a cation exchange membrane 25 and a salt solution supplied to the intermediate chamber 24 is electrolyzed and recovered while supplying gaseous hydrogen and steam to the anode. Since the anode chamber 23 different from an electrolytic cell using a conventional gas diffusion anode is constituted only of a gas chamber, the device is made compact.