Asahi Glass Company, Limited

Kohji Saito

Junjiro Iwamoto

Yasuo Sajima

Takahiro Uchibori

Toshihiko Kuno

Hidenori Shibata

Osamu Shiragami

A filter press type ion exchange membrane electrolytic cell which comprises an anode compartment and a cathode compartment partitioned by a cation exchange membrane and which is useful for obtaining a halogen, hydrogen and an alkali metal hydroxide from an alkali metal halide aqueous solution, or oxygen and hydrogen from an aqueous alkaline solution. The filter press type electrolytic cell is characterized by:

Filter press type electrolytic cell

The deterioration of a palladium oxide type anode caused by stopping the operation of a diaphragm type electrolytic cell in the electrolysis of an alkali metal chloride is prevented by increasing the concentration of hypochlorite ions in the anolyte to give a predominant anode potential in short circuit state higher than the reduction potential of palladium oxide.

Method of preventing deterioration of palladium oxide anode

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Chiba, Japan

Kohji Saito