Electrolytic cell with cation exchange membrane and gas...

Details Electrolytic cell with cation exchange membrane and gas... Electrolytic cell with cation exchange membrane and gas...

C - Chemistry, Metallurgy

25

B

204/52.5

C25B 1/46 (2006.01) C25B 1/00 (2006.01) C25B 3/00 (2006.01) C25B 9/20 (2006.01)

Patent

CA 1088456

ABSTRACT OF THE DISCLOSURE In an electrolytic cell having a cation exchange membrane as a diaphragm partitioning said cell into cathode and anode chambers, electrolysis of an aqueous electrolyte solution is conducted while generating gas at the anode by maintaining the pressure within the cathode chamber higher than that within the anode chamber. Some difficulties caused when electrolyzing an aqueous alkali metal halide solution to form alkali metal hydroxide in the cathode chamber are overcome by adjusting the anolyte to a pH <3.5. A preferred electro- lytic cell for use in the process is also disclosed.

221570

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