Method of electrolyzing brine

Details Method of electrolyzing brine Method of electrolyzing brine

1976-10-22

1978-09-19

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 116, C25B 126, C25B 1308, C25B 1508

Patent

active

041152182

ABSTRACT:
A practical method of electrolyzing sodium chloride brine on a commercial scale, obtaining in good yield a caustic product exceptionally low in salt content, is provided. The process necessarily involves working with a brine of lower calcium-ion content than is ordinarily used, using dimensionally stable anodes, using, preferably but not necessarily, a heat-treated ion-exchange membrane as a separator within the cell, and periodically taking action to reduce the cell voltage, by reducing the current or interrupting it, alone or with a concomitant flushing of the catholyte portion of the cell.

REFERENCES:
patent: 3341441 (1967-09-01), Giuffrida et al.
patent: 3897320 (1977-08-01), Cook
patent: 3988223 (1976-10-01), Hirozawa
patent: 4040919 (1977-08-01), Eng

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