Production of sodium chlorate

Details Production of sodium chlorate Production of sodium chlorate

1986-03-27

1987-10-27

Tung, T.

Chemistry: electrical and wave energy

Processes and products

23302T, C25B 126, C25B 134

Patent

active

047028050

ABSTRACT:
Process for the production of sodium chlorate by the electrolysis of sodium chloride contaminated with sodium sulphate wherein the sulphate concentration in the system is kept below a pre-selected level. A portion of the mother liquor remaining after crystallizing out some of the sodium chlorate product is selectively further cooled to effect crystallization of some of the sodium sulphate present in the liquor. An acceptable "steady-state" concentration of sulphate ion is established which prevents the deleterious excess sulphate ion build-up in the electrolytic system.

REFERENCES:
patent: 3835001 (1974-09-01), O'Brien
patent: 3883406 (1975-05-01), O'Brien et al.
patent: 4072472 (1978-02-01), Lukes
patent: 4087253 (1978-05-01), Zabotto et al.
patent: 4547197 (1985-10-01), Winkler
patent: 4636376 (1987-01-01), Maloney et al.

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