Thyssenkrupp Uhde Chlorine Engineers (japan) Ltd.

Kawasaki Jukogyo Kabushiki Kaisha

Tosoh Corporation

Thyssenkrupp Nucera Japan Ltd.

Koji Kawanishi

Akiyoshi Manabe

Yuji Kamei

Terumi Hashimoto

Yoshiyuki Kodama

Fumio Sadahiro

Kenichiro Igashira

Takehiro Oiwa

Sachio Kaneko

Shota Shinohara

Nanase Ishikawa

Provided are an anode for an ion exchange membrane electrolyzer which enables an aqueous solution of an alkali metal chloride to be electrolyzed at a lower voltage than a conventional anode and allows the concentration of an impurity gas included in an anode gas to be reduced and an ion exchange membrane electrolyzer using the same. The anode is an anode for an ion exchange membrane electrolyzer to be used in an ion exchange membrane electrolyzer that is separated by an ion exchange membrane into an anode chamber and a cathode chamber. The anode for an ion exchange membrane electrolyzer comprises at least one perforated flat metal plate(expanded metal) and the thickness of the perforated flat metal plate(expanded metal) ranges from 0.1 to 0.5 mm and the ratio of the short way SW to the long way LW (SW/LW) ranges from 0.45 to 0.55. The short way SW is preferably not more than 3.0 mm.

Anode for ion exchange membrane electrolysis vessel, and ion exchange membrane electrolysis vessel using same

Provided is an alkaline water electrolyzer in which leakage of aqueous alkali solutions is prevented. The alkaline water electrolyzerincludes an anode chamber framedefining an anode chamber; a cathode chamber framedefining a cathode chamber; a porous diaphragmdisposed between the anode and cathode chamber framesandand partitioning the anode and cathode chambersand; an anode gasketdisposed on the anode chamber frame; and a cathode gasketdisposed on the cathode chamber frame, wherein when the anode and cathode chamber framesandare fastened, the porous diaphragmis held between the anode and cathode chamber framesandvia the anode and cathode gasketsandand the anode and cathode gasketsandare in contact with each other around the peripheral edge of the porous diaphragmby compressing the anode and cathode gasketsand

Alkaline water electrolysis device

Provided are an elastic cushion member and an ion exchange membrane electrolyzer using the same, which elastic cushion member can be installed even in an ion exchange membrane electrolyzer having such a small gap between an electrode and an electrode current collecting plate that a conventional elastic cushion member cannot be arranged therein. An elastic cushion member () has a pair of corrosion-resistant metal thin plates () arranged at a distance in parallel fashion and a fixing member () which fixes the pair of corrosion-resistant metal thin plates () and comprises a metal elastic body () wound between the pair of corrosion-resistant metal thin plates (). The fixing member () is attached to the pair of corrosion-resistant metal thin plates () in a manner that enables detachment of the fixing member therefrom. The metal elastic body () is preferred to be a metal coil body. It is also preferable that each of the corrosion-resistant metal thin plates () is provided with a slippage prevention means.

Elastic cushion material and ion exchange membrane electrolytic cell utilizing same

Growing community of inventors

Tamano, Japan

Koji Kawanishi