FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy and can be used in extraction from steel melting slag of eluated calcium. In the method steel-smelting slag is subjected to magnetic separation for removal from the steel melting slag of the compound containing iron, steel-smelting slag is subjected to hydration treatment and steel melting slag subjected to magnetic separation and hydration treatment is brought in contact with water solution containing carbon dioxide.
EFFECT: invention enables to elute calcium from steel-smelting slag in greater amount into aqueous solution containing carbon dioxide.
7 cl, 8 dwg, 3 tbl
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