FIELD: chemistry.
SUBSTANCE: method of extraction isolation of cobalt ions from water solutions includes extraction by means of complex-former and extraction reagent and further registration of extracted component amount. For extraction, composition, containing 65-80 wt % of complex-former mixture - potassium thiocyanate with extraction reagent polyethyleneglycole alkyl ethers of general formula CnH2n+1O(CH2CH2O)mH (n=10-18; m=8-10) with ratio from 0.7:1 to 11:1, remaining part - water, is used.
EFFECT: invention allows to simplify process of cobalt ions isolation due to use of inexpensive components and avoid application of nonfire-proof and toxic substances.
1 dwg, 1 tbl, 3 ex
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