Spent brine concentration using microwave energy

Details Spent brine concentration using microwave energy Spent brine concentration using microwave energy

1979-12-21

1981-05-12

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, 203100, C25G 134

Patent

active

042670268

ABSTRACT:
A process for the concentration of spent brine from the membrane electrolytic cell which comprises removing spent brine containing dissolved chlorine from the membrane electrolytic cell, feeding the spent brine to a concentration zone, applying microwave energy to the spent brine to produce concentrated brine and a gaseous mixture of chlorine and steam, feeding the concentrated brine and the gaseous mixture to a separation zone, separating the gaseous mixture from the concentrated brine, and returning the concentrated brine to the membrane electrolytic cell.
Process reduces the operating and equipment costs while effectively recovering chlorine and brine values.

REFERENCES:
patent: 3209812 (1965-10-01), Sargeant
patent: 3577322 (1971-05-01), Nesbitt et al.
patent: 3607667 (1971-09-01), Knapp et al.
"Chlorine . . . ", Sconce, Rheinhold, 1962, pp. 132-136.

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