Investigation of sorption behaviors of La, Pr, Nd, Sm, Eu and Gd on D2EHPA-impregnated XAD7 resin in nitric acid medium

Sert, Şenol; Altaş, Yüksel; Tel, H.; İnan, Süleyman; Çetinkaya, Berkan; Sengül, S.; Özkan, Bekir

doi:10.1080/01496395.2019.1708107

Cited by 9 publications

(11 citation statements)

References 20 publications

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“…Additional examples include PC88A infused styrene-divinyl benzene copolymer for Gd(III) and Tb(III) chromatographic separation (PARK et al, 2005), Octacarboxymethyl-C-methylcalix 4-resorcinarene impregnated Amberlite XAD-16 for La(III), Ce(III), and Y(III) preconcentration (Gok et al, 2007); XAD-4 infused with tri-n-octylmethylammonium chloride (Aliquat-336) in benzene for Ln(III) and Gd(III) (Elsofany, 2008); microporous polymer infused with phosphorus podands bearing two Ph 2 P(O)CH 2 C(O)NH for REEs (Turanov et al, 2008); Cyanex272-2-ethylhexyl phosphoric acid-2-ethylhexyl ester (P507) impregnated resin for HREEs (Liao et al, 2010); TOPS-99 infused Amberlite XAD-4 to extracted Tb (Kumar et al, 2011), βglycerophosphate impregnated Amberlite XAD 7 for La(III) (Gabor et al, 2016); di-(2-ethylhexyl)phosphinic acid (P227) impregnated XAD-7HP for HREEs ; and HDEHP impregnated XAD-7 for REEs (Sert et al, 2021). (Lee et al, 2009(Lee et al, , 2010b.…”

Section: Organic Polymer-based Supportsmentioning

confidence: 99%

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Adsorption-based Separation and Recovery of Rare Earth Elements

Patel¹,

Karamalidis²

2023

Preprint

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Section: Organic Polymer-based Supportsmentioning

confidence: 99%

“…The SIR P227 infused XAD-7HP showed selectivity series of Fe . Another adsorbent, HDEHP-XAD-7 showed selectivity series Gd > Eu > Sm > Nd > Pr > La with separation factors achieved Gd/La separation factors of >140 (Sert et al, 2021).…”

Section: Organic Polymer-based Supportsmentioning

confidence: 99%

Adsorption-based Separation and Recovery of Rare Earth Elements

Patel¹,

Karamalidis²

2023

Preprint

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“…Among these various methods, the adsorption process using solvent-impregnated resins (SIR) demonstrated an efficient, effective, and economical technology 21 . In this method, the surface of the resin is impregnated with a chelating solvent, usually containing the organic compounds of the cavity, and the ion exchange process is performed by it 22 . SIRs have the properties of ion exchange resins and solvent extraction methods simultaneously 19 , 23 .…”

Section: Introductionmentioning

confidence: 99%

Ce(ΙΙΙ) and La(ΙΙΙ) ions adsorption through Amberlite XAD-7 resin impregnated via CYANEX-272 extractant

Yarahmadi

Khani

Nasiri

et al. 2023

Sci Rep

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The goal of this paper is to investigate the ability of Amberlite XAD-7 (AXAD-7) resin impregnated with CYANEX-272 (di-2,4,4-trimethylpentyl phosphonic acid) to remove cerium (Ce(ΙΙΙ)) and lanthanum (La(ΙΙΙ)) ions from aqueous solutions in the batch scheme. The prepared adsorbent material was determined utilizing FTIR, SEM–EDX, and BET methods. The impact of three individual process variable factors involving feed solution pH (2–6), adsorbent dose (0.05–0.65), and process temperature (15–55 °C) on the simultaneous removal of Ce(ΙΙΙ) and La(ΙΙΙ) ions was evaluated via response surface methodology (RSM) according to the central composite design (CCD). The modeling of Ce(ΙΙΙ) and La(ΙΙΙ) ions adsorption was performed using the quadratic model and was evaluated using a coefficient of determination for both ions. The optimization data revealed that the adsorption amount of Ce(ΙΙΙ) and La(ΙΙΙ) ions removal under optimal conditions were 99.75% and 69.98%, respectively. Equilibrium and kinetic investigations were also conducted to define the removal performance of the calculated adsorbent for Ce(ΙΙΙ) and La(ΙΙΙ) ions removal. Various isotherms models such as Langmuir, Freundlich, Temkin, and Sips were examined at 25 °C to analyze the equilibrium isotherm data. The data revealed that the Sips approach is compatible with the experimental data. The highest adsorption capacity of the resin for Ce(ΙΙΙ) and La(ΙΙΙ) ions were 11.873 mg g−1 and 7.324 mg g−1, correspondingly. The kinetic study of the Ce(ΙΙΙ) and La(ΙΙΙ) adsorption process was conducted via pseudo-first-order, pseudo-second-order, and intraparticle diffusion models(IDMs). Based on the data obtained, kinetic data were fitted well to a pseudo-second-order rate correlation. According to the obtained results, the (AXAD-7) resin impregnated with CYANEX-272 performed well in removing both Ce(ΙΙΙ) and La(ΙΙΙ) ions from aqueous solutions with well stability during several adsorption–desorption cycles and well regeneration and excellent metallic ions recovery.

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“…These high-molecular synthetic compounds with a three-dimensional gel and macroporous structure, which contain functional groups of an acidic or basic nature, capable of ion exchange reactions. Modern sorption technologies for extraction of rare-earth metals in hydrometallurgy are commonly based on application of ion-exchangers [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. As objects of the study widely used industrial ion-exchange resins Amberlite IR120 (cation exchanger) and AB-17-8 (anion exchanger) were chosen as macromolecular sorbents [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction

Jumadilov¹,

Totkhuskyzy

Malimbayeva

et al. 2021

Materials

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The aim of the work is to provide a comparative study of influence of ionic radii of neodymium and scandium ions on their sorption process from corresponding sulfates by individual ion exchangers Amberlite IR120, AB-17-8 and interpolymer system Amberlite IR120-AB-17-8. Experiments were carried out by using the following physicochemical methods of analysis: conductometry, pH-metry, colorimetry, and atomic-emission spectroscopy. Ion exchangers in the interpolymer system undergo remote interactions with a further transition into highly ionized state. There is the formation of optimal conformation in the structure of the initial ion exchangers. A significant increase of ionization of the ion-exchange resins occurs at molar ratio of Amberlite IR120:AB-17-8 = 5:1. A significant increase of sorption properties is observed at this ratio due to the mutual activation of ion exchangers. The average growth of sorption properties in interpolymer system Amberlite IR120:AB-17-8 = 5:1 is over 90% comparatively to Amberlite IR120 and almost 170% comparatively to AB-17-8 for neodymium ions sorption; for scandium ions sorption the growth is over 65% comparatively to Amberlite IR120 and almost 90% comparatively to AB-17-8. A possible reason for higher sorption of neodymium ions in comparison with scandium ions is maximum conformity of globes of internode links of Amberlite IR120 and AB-17-8 after activation to sizes of neodymium sulfate in an aqueous medium.

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Investigation of sorption behaviors of La, Pr, Nd, Sm, Eu and Gd on D2EHPA-impregnated XAD7 resin in nitric acid medium

Cited by 9 publications

References 20 publications

Adsorption-based Separation and Recovery of Rare Earth Elements

Adsorption-based Separation and Recovery of Rare Earth Elements

Ce(ΙΙΙ) and La(ΙΙΙ) ions adsorption through Amberlite XAD-7 resin impregnated via CYANEX-272 extractant

Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction

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