FIELD: chemistry.
SUBSTANCE: invention relates to a method of purification of a polluted alkaline solution of amino acid salt. First, carbon dioxide is introduced into the amino acid salt solution, which results in the precipitation of carbonate or its salt, which are filtered. After that, the remaining filtrate is cooled, with amino acid or its salts being crystallised and then filtered. After that, amino acid or its salt are re-dissolved, which results in the regeneration of the purified amino acid salt solution. The invention also relates to a device for the said method realisation.
EFFECT: invention makes it possible to purify the polluted alkaline solution of the amino acid salt on an industrial scale.
26 cl, 5 dwg
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