FIELD: chemistry.
SUBSTANCE: invention relates to extraction of radioactive elements from a mixture. Ore or ore concentrate is treated with at least one alkanesulphonic acid and at least one additional acid selected from a group consisting of hydrochloric acid, nitric acid, amide-sulphonic acid and mixtures thereof.
EFFECT: method enables to reduce concentration of radioactive elements contained in ore or ore concentrate to values allowing to use said ores or concentrates.
12 cl, 3 tbl
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