METHOD OF PURIFYING A CHLORIDE SOLUTION FROM IRON Russian patent published in 2020 - IPC C22B3/26 C01G49/10 C22B7/00 

Abstract RU 2725322 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to hydrometallurgy and can be used for purification from iron of chloride solutions formed during processing of copper-nickel raw material and during hydrochloric acid leaching of polymetallic raw material. Treatment of a chloride solution containing not less than 200 g/l of chlorine ions, an extractant in the form of a mixture containing aliphatic alcohols with number of carbon atoms of 8–12 and aliphatic ketones with number of carbon atoms of 8–11, wherein alcohols and ketones are taken in volume ratio 1:0.2–4.0.

EFFECT: method increases degree of purification of chloride solution from iron to 99_9 % and is more ecological due to use of nontoxic components of extraction mixtures.

6 cl, 5 ex

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RU 2 725 322 C1

Authors

Kasikov Aleksandr Georgievich

Sokolov Artem Yurevich

Shchelokova Elena Anatolevna

Dates

2020-07-02Published

2020-02-18Filed