Preparing alkali metal hydroxide by water splitting and hydrolys

Details Preparing alkali metal hydroxide by water splitting and hydrolys Preparing alkali metal hydroxide by water splitting and hydrolys

1981-12-03

1983-07-05

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204103, 204128, 204129, 204180P, 204296, C25B 116, C25B 122

Patent

active

043916805

ABSTRACT:
A two-compartment water splitter having alternating cation and bipolar membranes is used to remove alkali metal cations from an aqueous alkali metal chloride solution so as to produce an acidified salt solution. The coproduct is a base such as NaOH or KOH. The acidified salt solution may then be fed to a membrane or diaphragm electrolytic cell for production of chlorine and alkali metal hydroxide.

REFERENCES:
patent: 3654125 (1972-04-01), Leitz
patent: 3844927 (1974-10-01), Smith
patent: 3905886 (1975-09-01), Wang
patent: 4024043 (1977-05-01), Dege et al.
patent: 4219396 (1980-08-01), Gancy et al.

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