FIELD: chemistry.
SUBSTANCE: invention relates to more environmentally friendly method of metal extraction from concentrated solution or, in particular, extraction of monovalent metals from solutions, which contain polyvalent metals in large concentrations. Concentrated solution, which contains, at least one monovalent metal and at least one polyvalent metal, is prepared. Monovalent metal is extracted by passing concentrated solution above resin, functionalised by sulfonic groups. After that, elution of monovalent metal is performed.
EFFECT: increased efficiency.
10 cl, 6 dwg, 3 ex
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