Sorption of uranium(VI) compounds on fibrous anion exchanger surface from aqueous solutions

Sazonova, V. F.; Perlova, O. V.; Perlova, N. A.; Polikarpov, A. P.

doi:10.1134/s1061933x17020132

Cited by 14 publications

(2 citation statements)

References 11 publications

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“…In most circumstances, uranium is extracted from solutions with application of solvent extraction [12], chemical precipitation [13], and adsorption processes [14,15]. Due to the benefits of adsorption processes like low cost and high efficiency, ion exchange process becomes a suitable technique for the recovery of uranium from pregnant leach solutions [16][17][18][19]. To extract uranium in the form of [UO 2 (SO 4 ) 2 ] 2-, anionites have to be used.…”

Section: Methodsmentioning

confidence: 99%

Uranium (VI) Recovery from Black Shale Leaching Solutions Using Ion Exchange: Kinetics and Equilibrium Studies

et al. 2020

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This work studies the removal of uranium ions from chemically leached solutions by sorption using two weak and two strong base anionites. Batch sorption experiments were performed to evaluate the optimum conditions at pH 1.2–2.2, 1.0 g resin dose for 1–12 h contact time at room temperature. These experiments addressed sorption kinetics and sorption isotherm. The maximum sorption capacity reached 55.8 mg/g at room temperature. The kinetics data are well described by the pseudo-second-order kinetic model at initial uranium concentration of 0.62 mg·L−1. To describe sorption kinetics pseudo-first-order, pseudo-second-order and intraparticle diffusion models were proposed. Studies indicated that the sorption of uranium can be fitted by a pseudo-second-order kinetic model very well. Equilibria were described by Langmuir, Freundlich, and Dubinin–Radushkevich equations. The experimental sorption isotherm is successfully described by the Langmuir model.

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Section: Methodsmentioning

confidence: 99%

Uranium (VI) Recovery from Black Shale Leaching Solutions Using Ion Exchange: Kinetics and Equilibrium Studies

et al. 2020

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“…Ïî ñðàâíåíèþ ñ ãðàíóëèðîâàííûìè èîíèòàìè èîíîîáìåííûå âîëîêíà îòëè÷àþòñÿ áîëåå âûñîêîé ñêîðîñòüþ îáìåíà è áîëüøåé äîñòóïíîñòüþ èîíîãåííûõ ãðóïï äëÿ îáìåíèâàþùèõñÿ èîíîâ [8]. Ðàíåå [9,10] íàìè áûëî ïîêàçàíî, ÷òî âîëîêíèñòûå èîíèòû ÔÈÁÀÍ ñ âûñîêîé ñêîðîñòüþ èçâëåêàþò ñîåäèíåíèÿ óðàíà(VI) èç âîäíûõ ðàñòâîðîâ â ñòàòè-÷åñêèõ óñëîâèÿõ, ïðè÷åì ïðè îïòèìàëüíûõ óñëîâèÿõ ïðîâåäåíèÿ ïðîöåññà óðàí èçâëåêàåòñÿ ïðàêòè÷åñêè ïîëíîñòüþ. Îäíàêî èçâåñòíî [11], ÷òî íà ïðàêòèêå áîëåå öåëåñîîáðàçíî îñóùåñòâëÿòü ñîðáöèîííûé (èîíîîáìåííûé) ïðîöåññ â äèíàìè÷åñêèõ óñëîâèÿõ.…”

Section: Recovery and Concentration Of Uranium(vi) Compounds From Nitunclassified

Recovery and concentration of uranium(VI) compounds from nitrate solutions by FIBAN fibrous ion exchangers under dynamic conditions

2019

VKhKhT

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Advanced Carbon Nanomaterials and Their Composites for Removal of U(VI)Compounds from Aqueous Solutions (Review)

Dzyazko

Perlova²,

Martovyi³

2023

Springer Proceedings in Physics

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Sorption of uranium(VI) compounds on fibrous anion exchanger surface from aqueous solutions

Cited by 14 publications

References 11 publications

Uranium (VI) Recovery from Black Shale Leaching Solutions Using Ion Exchange: Kinetics and Equilibrium Studies

Uranium (VI) Recovery from Black Shale Leaching Solutions Using Ion Exchange: Kinetics and Equilibrium Studies

Recovery and concentration of uranium(VI) compounds from nitrate solutions by FIBAN fibrous ion exchangers under dynamic conditions

Advanced Carbon Nanomaterials and Their Composites for Removal of U(VI)Compounds from Aqueous Solutions (Review)

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