Process for the production of alkali metal chlorate

Details Process for the production of alkali metal chlorate Process for the production of alkali metal chlorate

C - Chemistry, Metallurgy

25

B

204/62.5

C25B 1/26 (2006.01) C01D 3/14 (2006.01)

Patent

CA 1313161

ABTRACT The invention relates to a process for the production of alkali metal chlorates by electrolysis of alkali metal chloride. The electrolyte is prepared by addition of a crystal slurry having a dry content about 50 per cent by weight of the alkali metal chloride depleted reaction solution flowing out from the electrolyser. The crystal slurry has been prepared by dissolving an alkali metal chloride in water whereafter the obtained water solution has been purified and concentrated to the stated dry content of 60-95% by weight, the mother liquor phase from the concentration being withdrawn and purified from sulphate and returned in the addition step.

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