Method for concentrating aqueous caustic alkali solution

Details Method for concentrating aqueous caustic alkali solution Method for concentrating aqueous caustic alkali solution

1976-10-18

1978-05-23

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 134

Patent

active

040909328

ABSTRACT:
Heated substances, e.g. electrolytes or gases from electrodes, formed during electrolysis of an alkali halide in an electrolytic cell using a cation exchange membrane to separate anode and cathode chambers are used effectively as heat source for heating an aqueous caustic alkali solution to be concentrated in an evaporator.

REFERENCES:
patent: 3403083 (1968-09-01), Currey et al.
patent: 3909378 (1975-09-01), Walmsley
patent: 3954579 (1976-05-01), Cook et al.

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