Production of halogens in an electrolysis cell with catalytic el

Details Production of halogens in an electrolysis cell with catalytic el Production of halogens in an electrolysis cell with catalytic el

1978-07-06

1980-03-04

Edmundson, F. C.

Chemistry: electrical and wave energy

Processes and products

204128, 204282, 204283, 204290, 204291, C25B 146, C25B 904, C25B 1102, C25B 1308

Patent

active

041916182

ABSTRACT:
A halogen such as chlorine is generated by the electrolysis of aqueous halides in an electrolysis cell which includes an anode and a cathode separated by an ion transporting membrane. At least the cathode, which is a mass of noble metal catalytic particles and particles of a suitable binder, is bonded to the surface of the membrane. An oxygen containing gaseous stream is brought into contact with the bonded cathode to depolarize the cathode and prevent or limit discharge of hydrogen at the cathode, thereby substantially reducing the cell voltage.

REFERENCES:
patent: 2681884 (1954-06-01), Butler
patent: 3528858 (1970-09-01), Hodgdon et al.
patent: 3809630 (1974-05-01), De Nora et al.
patent: 4025405 (1977-05-01), Dotson et al.
patent: 4035254 (1977-07-01), Gritzner
patent: 4086149 (1978-04-01), Martinsons et al.

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