FIELD: chemistry.
SUBSTANCE: invention relates to granular polymers and their use for removing oxoanions from aqueous solutions. Granular polymers based on polyacrylate functionalized with quaternized diethylenetriamine for the removal of chromium (VI) oxoanions are proposed, wherein polyacrylate granular polymers are produced based on an acrylic monomer fraction of 70 wt. % or more, and at least one multifunctional ethylene unsaturated compound in the amount of 1-20 wt. % relatively to the total amount of monomers. A method for producing the specified granular polymers, the use of the proposed polymers for removing chromium (VI) oxoanions from aqueous solutions and a corresponding method for removing chromium (VI) oxoanions from aqueous solutions are also proposed.
EFFECT: proposed granular polymers are ion exchangers with an improved capacity for chromium (VI) oxoanions.
10 cl, 1 dwg, 2 tbl
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