C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/156, 204/57.
C25B 1/46 (2006.01) C25B 9/20 (2006.01) C25B 13/00 (2006.01)
Patent
CA 1225615
ABSTRACT OF THE DISCLOSURE An aqueous solution of an alkali metal chloride is electrolyzed by feeding an aqueous solution of an alkali metal chloride through a passage into a first central compartmental space of a quadrilateral frame accommodating an anode in said first central compartmental space and feeding water or a di- lute aqueous solution of an alkali metal hydroxide through a passage into a second central compartmental space of a quadri- lateral frame accommodating a cathode in said second central compartmental space in a filter-press type electrolytic cell, effecting electrolysis in said cell by applying power to said anode and cathode and removing the product of said electroly- sis through a third passage in each said frames; said cell in- cluding a gas and liquid permeable non-electrode porous layer made of inorganic particles formed on a non-porous cation ex- change membrane in a thickness less than that of the membrane on at least one surface of the membrane; the frames being fas- tened such that at least the surface of the cation exchange membrane having the porous layer is spaced from the anode or the cathode. The present invention provides a process for electrolyzing an aqueous solution of an alkali metal chloride at low cell voltage in an electrolytic cell which can be eas- ily constructed without any serious concern for spacing of the surface of a cation exchange membrane having a non-electrode porous layer from an electrode.
384630
Morimoto Takeshi
Nakao Makoto
Sajima Yasuo
Sato Kimihiko
Asahi Glass Company Ltd.
Marks & Clerk
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