FIELD: processing of industrial solutions. SUBSTANCE: scandium and lanthanides were separated from element impurities by extraction with a mixture of naphthenic acids and di-2-ethylhexylphosphoric acid in kerosene taken at concentration 1-2 and 0.2-0.5 mole/l, respectively. Range pH at extraction is 1.2-1.5. Then extract is treated successively with mineral acids: hydrochloric acid at concentration 1-1.5 and 6 mole/l, hydrofluoric acid solution at concentration 3.5-4.5 mole/l. EFFECT: increased effectiveness of separation. 7 tbl
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