Uranium extraction with modified sorbents
DOI:
https://doi.org/10.31643/2020/6445.30Keywords:
natural sorbents, modification, uranium sorption, organomineralAbstract
Hydrometallurgical processing of uranium-containing raw materials generates a significant amount of liquid industry-related waste, namely waste solutions that require disposal. Sorption is known as one of the most effective methods for purifying liquid matters contaminated with radionuclides. Various modification options are being developed for the purpose of using natural sorbents and increasing their sorption capacity. The authors proposed the methods for modifying natural aluminosilicate and coal-mineral raw materials. Zeolite found at the Kusmurun deposit and shungite from the Koksu deposit were selected for the research. The methods are based on obtaining solid-phase extractants. It was proposed to modify natural sorbents with a mixture of tributyl phosphate and di2-ethylhexyl phosphoric acid in kerosene, as well as a mixture of phosphoric acid and polyacrylamide. It was demonstrated that the first method is preferable for zeolite, and the second one for shungite. The research addressed the sorption properties of modified sorbents in static and dynamic modes. Uranium sorption isotherms were plotted. The maximum sorption capacity and the Langmuir constant were calculated. The research allowed synthesizing an organopolymer based on shungite, glycidyl methacrylate, orthophosphoric, and hydroxyethyl diphosphoric acids. Its sorption properties were studied under dynamic conditions. Its sorption capacity was assessed in comparison with modified natural sorbents
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Bagdaulet K. Kenzhaliyev, Tatiana Yu. Surkova, Ainur N. Berkinbayeva, Zamzagul D. Dosymbayeva, Ainur A. Mukhanova, Bekzat E. Abdikerim Development of a method оf modifying а natural sorbent for uranium extraction // Journal of Chemical Technology and Metallurgy, 55, 5. –2020. –P. 1041-1046.(In Eng.).
Kenzhaliev B.K., Surkova T.Yu., Berkinbayeva A.N. To the question of the intensification of the processes of uranium extraction from refractory raw materials // Journal Metalurgija. –2019. –No.1-2. ISSN 0543-5846.(In Eng.).
Milyutin V.V., Gelis V.M., Penzin P.A. Sorbtsionno-selektivnyye kharakteristiki neorganicheskikh sorbentov i ionoobmennykh smol po otnosheniyu k tseziyu i strontsiyu [Sorption-selective characteristics of inorganic sorbents and ion-exchange resins with respect to cesium and strontium]// Radiokhimiya =Radiochemistry. –1993. –V.35. –No.3. –P.76-82.(In Rus.).
Dunaeva A.N., Mironenko M.V. Sorbtsiya tseziya nekotorymi glinistymi mineralami [Cesium sorption by some clay minerals]// Geokhimiya = Geochemistry. –2000. –No.2. –P.213-221.(In Rus.).
Myasoedova G.V., Nikashina V.A., Molochnikova N.P., Lileyeva L.V. Svoystva novykh tipov voloknistykh sorbentov s amidoksimnymi i gidrazinovymi gruppami [Properties of new fibrous sorbent types with amidoxime and hydrazine groups]// Zhurnal analiticheskoy khimii = Journal of Analytical Chemistry.–2000. –V.55. –No.6. –P.611-615.(In Rus.).
Donald, I. W. The immobilization of high-level radioactive waste using ceramics and glasses (Review) / I. W. Donald, R. N. Metcalfe, R. N. J. Taylor // J. Mater. Sci. –1997. –V. 32. –P. 5851–5887.(In Eng.).
Druzhinina T.V., Smolenskaya L.M., Struganova M.A. Sorbtsiya tyazhelykh metallov iz model'nykh rastvorov aminosoderzhashchim khemosorbtsionnym poliamidnym voloknom [Heavy metal sorption from model solutions by an amine-containing chemisorption polyamide fiber]// Zhurnal prikladnoy khimii = Journal of Applied Chemistry. 2003. –V.76. –No.12. –P.1976–1980.(In Rus.).
Ma, W., Brown, P. W., & Komarneni, S. (1998). Characterization and cation exchange properties of zeolite synthesized from fly ashes. Journal of Materials Research, 13(1), 3–7.(In Eng.). https://doi.org/10.1557/jmr.1998.0001
Panasyugin A.S., Troftmenko N.E., Masherova N.P., Ratko A.I., Golikova N.I. Sorbtsiya radionuklidov [Radionuclide sorption]// Radiokhimiya = Radiochemistry. –1993. –V.66. –No.9. –P. 2119-2122. (In Rus.).
Samoilov V.I., Saduakasova A.T., Zelenin V.I., Kulenova N.A. Issledovaniye protsessa sorbtsii urana iz ozernoy vody s ispol'zovaniyem prirodnykh sorbentov i produktov ikh modifikatsii [Studying the process of uranium sorption from lake water using natural sorbents and products of their modification]// Gornyy informatsionno-analiticheskiy byulleten' = Mining Informational and Analytical Bulletin. –2016. –No.4. –P.283–291.(In Rus.).
Kenzhaliyev, B. K. (2019). Innovative technologies providing enhancementof nonferrous, precious, rare and rare earth metals extraction. Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ / Complex Use of Mineral Resources / Mineraldik Shikisattardy Keshendi Paidalanu, 3(310), 64–75. (In Eng.). https://doi.org/10.31643/2019/6445.30
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