FIELD: chemistry.
SUBSTANCE: invention relates to treatment of a lithium-containing solution to obtain lithium carbonate. Disclosed is use of a complexing compound, which forms soluble complex compounds with calcium and magnesium, as an agent for treating a lithium-containing solution to obtain lithium carbonate. Complexing compound is one of the following: phosphonic acids, nitrile triacetic acid, diamine cyclohexane tetraacetic acid, alkali metal salts of the listed acids or derivatives thereof.
EFFECT: obtaining lithium carbonate with low content of impurities using a simple process scheme.
3 cl, 2 tbl, 1 ex
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