Process for reducing sulphate ion concentration in aqueous sodiu

Details Process for reducing sulphate ion concentration in aqueous sodiu Process for reducing sulphate ion concentration in aqueous sodiu

1984-12-10

1986-01-21

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

210702, 210723, 210767, C25B 116

Patent

active

045656126

ABSTRACT:
A process is disclosed for reducing sulphate ion concentration in an aqueous solution comprising sodium hydroxide. The process comprises adding sodium carbonate or bicarbonate to said aqueous solution to form an insoluble sodium carbonate-sodium sulphate double salt, removing said insoluble salt, and recovering a purified aqueous sodium hydroxide solution.

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Chemical Abstracts, vol. 44, p. 920.
Chemical Abstracts, vol. 48, pp. 3131, 9172.

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