FIELD: chemistry.
SUBSTANCE: present invention relates to sorption hydrometallurgy of uranium. Described is a pyridine ionite based on a copolymer of styrene and divinylbenzene for sorbing uranium from solutions and pulp, distinguished by that the initial polymer matrix of the ionite additionally contains methacrylic acid in amount of 3.0-6.0 wt %.
EFFECT: obtaining an ionite with improved desorption characteristics; improved cost-performance ratio of the sorption-desorption process of extracting uranium from a solution.
2 cl, 3 tbl, 2 ex
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