Chlor-alkali electrolysis cell

Details Chlor-alkali electrolysis cell Chlor-alkali electrolysis cell

1978-09-14

1979-11-06

Andrews, R. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204266, C25B 900

Patent

active

041735242

ABSTRACT:
An improved process and apparatus for pH control and energy savings in chlor-alkali electrolyis cells is disclosed wherein a fuel cell type spaced porous catalytic anode is utilized to chemically oxidize a controlled, sub stoichiometric amount of hydrogen to provide hydrogen ions to a recirculating anolyte. The pH is monitored and the flow of hydrogen fuel adjusted to provide a resultant desired pH in the range of about 2 to about 4. Optionally, hydrogen gas produced at the cell cathode may comprise the fuel supply and a spaced porous catalytic cathode may be employed for hydrogen supply control and depolarization.

REFERENCES:
patent: 2193323 (1940-03-01), Nitzschke et al.
patent: 3124520 (1964-03-01), Juda
patent: 3262868 (1966-07-01), Juda
patent: 3793163 (1974-02-01), Dotson
patent: 4035254 (1977-07-01), Gritzner
patent: 4035255 (1977-07-01), Gritzner
patent: 4093531 (1978-06-01), Babinsky et al.

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