BigPatents India

A multi-pole ion exchange membrane electrolytic bath which is low in electric resistance and simple and which can minimize a pole-to-pole distance by a low-cost movable mechanism to significantly reduce an electrolytic voltage, the electrolytic bath comprising a plurality of chamber frames disposed with cation exchange membranes sandwiched there between, each chamber frame being formed by joining an anode chamber frame with a cathode chamber frame with their respective backgrounds set back to back, each anode chamber frame comprising an anode plate and an anode background which are disposed almost in parallel to each other with a space there between and conductive anode support members disposed between the anode plate and the anode background at specified intervals, each cathode chamber frame comprising a cathode plate and a cathode background which are disposed almost in parallel to each other with a space there between and conductive cathode support members disposed between the cathode plate and the cathode background at specified intervals, characterized in that at least each cathode support member consists of a flexible element which acts to support the cathode plate displacably. (FIG. - 1)