SYNTHESIS AND STUDYING OF NITROGEN AND OXYGEN-CONTAINING COMPLEXING SORBENTS DURING THE SORPTION OF SOME D-METALS

The purpose of the work is the synthesis and study of sorbents that form stable complex compounds with high sorption properties for the concentration and separation of various rare and non-ferrous metals during wastewater treatment of industrial and hydrometallurgical enterprises. To achieve this goal, a polymer ligand containing nitrogen and oxygen based on aminoacetic acid, epoxy resin and polyethylene polyamine was synthesized and studied. The article analyzes the surface morphology and elemental analysis of a polymer ligand obtained by covalent addition of an amino acid to an epoxy matrix, static and dynamic exchange. Using IR spectroscopy methods, the structure of the resulting sorbent was established and proposed. The structural and sorption properties of the sorbent were determined by the Brunauer, Emmett and Teller (BET) method, based on the absorption of water vapor at low pressure, and it was found that the resulting sorbent is mesoporous and has high sorption properties. When studying the static exchange ability of sorbents synthesized on the basis of amino acids, it was found that the sorbent obtained on the basis of aminoacetic acid has the greatest ability.