Oxygen-consuming chlor alkali cell configured to minimize...

Details Oxygen-consuming chlor alkali cell configured to minimize... Oxygen-consuming chlor alkali cell configured to minimize...

2006-08-01

2006-08-01

Bell, Bruce F. (Department: 1746)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S263000, C204S265000, C204S266000

Reexamination Certificate

active

07083708

ABSTRACT:
Oxygen-consuming zero gap chlor-alkali cell was configured to minimize peroxide formation. The cell included an ion-exchange membrane that divided the cell into an anode chamber including an anode and a cathode chamber including an oxygen gas diffusion cathode. The cathode included a single-piece of electrically conducting graphitized carbon cloth. Catalyst and polytetrafluoroethylene were attached to only one side of the cloth. When the cathode was positioned against the cation exchange membrane with the catalyst side away from the membrane, electrolysis of sodium chloride to chlorine and caustic (sodium hydroxide) proceeded with minimal peroxide formation.

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