PHYSICO-CHEMICAL AND SORPTION PROPERTIES OF ANIONITE BASED ON ANILINE, EPICHLOROHYDRIN AND POLYETHYLENE POLYAMINE IN RELATION TO STRONTIUM (II) IONS

Abstract

A multifunctional anion exchanger based on aniline, epichlorohydrin and polyethylene polyamine was synthesized. The composition, structure, and thermal stability were studied using IR spectroscopy, elemental analysis, and thermogravimetric analysis. The process of extracting strontium ions by classical polarography was studied and the dependence of the sorption of strontium (II) ions in static mode was found depending on the acidity of solutions, the concentration of metal ions and the duration of contact of the ionite with the SrCl2 solution. It was found that the resulting ion exchanger has high sorption properties in relation to strontium ions. The scientific novelty of the study is that the sorption dependence on Sr2+ ions synthesized by ionite was studied for the first time. The practical significance of this work is to develop an anion exchanger with increased recovery capacity, which can successfully solve the problems of cleaning process effluents of non-ferrous metallurgy from strontium (II) ions.

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