SORPTION OF LANTHANUM(III) IONS ON IMPREGNATED SOLID EXTRACTANTS
Jaloliddin Q. ABDURASHIDOVTadjigul R. ODAMOVANational University of Uzbekistan, Tashkent, UzbekistanMaksim KamarouBelarusian State Technological University, Minsk, BelarusZuhra Ch. KADIROVATashkent Institute of Chemical Technology, Uzbekistan Japan Innovation Center of Youth, Tashkent, UzbekistanShahlo DaminovaNational University of Uzbekistan, Tashkent, Uzbekistan
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The aim of this work was to obtain solid extractants by impregnating the organic reagent 1-phenyl-1,3-butadione (BNA) onto carriers based on styrene-divinylbenzene copolymers (PAD600, PAD400) as well as activated carbon, and to investigate the sorption isotherms of La³⁺ ions under static conditions. The structure of the sorbents before and after La³⁺ ion sorption was studied using SEM-EDX and IR spectroscopy. The parameters of sorption extraction of La³⁺ ions, including extraction degree, sorbent capacity, and distribution coefficient, were evaluated. It was established that the PAD600-BNA sorbent exhibits the most favorable sorption properties toward La3+ ions.
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