FIELD: chemistry.
SUBSTANCE: invention relates to an expansible anode which is suitable for installation in chloro-alkali electrolysis cells, to methods of preparing said anode, to a chloro-alkali electrolysis cell having said anode and a chloro-alkali electrolysis process in the said electrolysis cell. The expansible anode which is placed between cathode elements fitted with a diaphragm has a current-collecting rod joined to several elastic expanders and two main movable surfaces attached to said elastic expanders. Said movable surfaces have subassemblies consisting of a bearing sheet, parallel vertical profiles attached to said bearing sheet, having a catalyst coating for releasing chlorine, and a fine-meshed screen without a catalyst coating in contact with peaks of said parallel vertical profiles.
EFFECT: reduced electrical power consumption and improved quality of obtained chlorine.
30 cl, 10 dwg
