The article studies the properties of obtaining anionite based on a triple copolymer of glycidylmethacrylate, styrene and Acrylonitrile and its suction of strontium ions. The composition and structure of the obtained anion was determined by infrared spectroscopy, were also studied basic physicochemical properties of the resulting anion. Anionite, presented on the basis of GMA-ST-ACN, is promising in the field of ion exchange process and is used for the extraction of strontium ions from aqueous solutions in the field of hydrometallurgy. The work is devoted to a review of the preparation of cross-linked polyelectrolytes, the extraction of strontium (II) ions using anionites. The possibilities of obtaining new nitrogen-containing anion exchangers based on a copolymer of glycidyl methacrylate (GMA), styrene (St) and acrylonitrile (ACN) have been studied. The optimal synthesis conditions were found and the physicochemical properties of the ion exchanger were investigated. Methods for the preparation of new anionites based on a copolymer of glycidyl methacrylate (GMA) with polyethylene polyimines (PEI) have been developed.
The physicochemical properties of a composite material for the separation of cerium from sulfuric acidchloride solutions have been studied. The nanocomposite polyaniline (60 wt%) / CNT CNT was obtained by polymerizing an aniline oxidizer on the CNT surface. The morphological and structural characteristics of the material were obtained using scanning electron microscopy. The optimal synthesis conditions have been identified.
The purposeful synthesis of polymeric chelate-forming sorbents, distinguished by high efficiency, selectivity of action, cost-effectiveness, is one of the promising directions in the field of increasing selectivity of the sorption processes. The paper aims at the synthesis of new ionic compounds, based on the copolymers of glycidyl methacrylate and chelating agent - oxyethylidenediphosphonic acid. The preparation of the insoluble complex sorbents by the method of a chemical modification with the introduction of a soluble complexone, hydroxyethylidenediphosphonic acid, widely used in the industry and heat engineering, into the polymer matrix has been studied. The ways of obtaining new ion-exchange resins, based on a double copolymer of glycidyl methacrylate, methyl methacrylate and oxyethylenediphosphonic acid complexon, have been developed. The optimal mode for obtaining the ion exchangers, based on a double copolymer of glycidyl methacrylate, methyl methacrylate and oxyethylenediphosphonic acid, is the mass ratio of copolymer:acid 1.0:1.0, at a temperature of 90 0C, and heating during 10 hours. The yield of ion exchangers makes up 78-80%. The composition and structure of the obtained ionites have been identified by the infrared spectroscopy and elemental analysis. The static exchange capacity for 0.1 М NaOH solution is 5.92 mg-eq/g. It has been found that the obtained ionite has a satisfactory chemical resistance to various acids, alkalis and oxidants, the loss of the static exchange capacity does not exceed 7%. The resulting ionite can be used as a sorption material for the industrial wastewater treatment from various metal ions.
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