Process for the manufacture of an aqueous solution of sodium hyd

Details Process for the manufacture of an aqueous solution of sodium hyd Process for the manufacture of an aqueous solution of sodium hyd

1993-06-08

1995-03-07

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

210650, 210651, 423551, B01D 6144

Patent

active

053954971

ABSTRACT:
Process for the manufacture of an aqueous solution of sodium hydroxide by electrodialysis of an aqueous solution (15) of a sodium salt derived from an acid of pK lower than the pK of carbonic acid, the solution being obtained by circulating an aqueous solution of the said acid (14) and an aqueous solution of sodium carbonate (13) on either side of a cationic membrane (12).

REFERENCES:
patent: 4584077 (1986-04-01), Chlanda et al.
patent: 4592817 (1986-06-01), Chlanda et al.
patent: 4629545 (1986-12-01), Mani et al.
patent: 4636289 (1987-01-01), Mani et al.
patent: 5089102 (1992-02-01), Voss

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