Investigation of Sorption and Separation of Lanthanides on the Ion Exchangers of Various Types

Kołodyńska, Dorota; Hubicki, Zbigniew

doi:10.5772/50857

Cited by 27 publications

(24 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This lack of adsorption of RE(III) on anion exchange resins from pure aqueous H 2 SO 4 solutions has been reported in many other studies (Banks, et al, 1958;Hughes & Carswell, 1970;Jangida, et al, 1965;Korkisch, 1989;Kuroda, et al, 1972;Nagle & Murthy, 1959;Strelow & Bothma, 1967). Kołodyńska and Hubicki (2012)…”

Section: Accepted Manuscriptsupporting

confidence: 64%

The effectiveness of ion exchange resins in separating uranium and thorium from rare earth elements in acidic aqueous sulfate media. Part 1. Anionic and cationic resins

Ang

Nikoloski

2017

Hydrometallurgy

View full text Add to dashboard Cite

Conventional ion exchange resins with different functional groups were evaluated for their potential application in separating uranium U(VI) and thorium Th(IV) from rare earth elements RE(III). The resins studied comprised strong-and weak-base anion exchange resins, and strong-and weak-acid cation exchange resins. The selectivity of these resins to adsorb U(VI) and Th(IV) in the presence of selected RE(III) was examined in sulfuric acid media of varying concentrations. It was evident that the adsorption performance of the resins was acid concentration-dependent. Most candidate resins had potentially feasible selective adsorption at or below 0.1 mol/L H 2 SO 4 (pH ≥ 0.7). Within the group of anion exchange resins, both the strong-and weak-base resins exhibited a similar selectivity with U(VI) adsorbed in preference to RE(III). The difference between them was their adsorption of Th(IV). The weak-base resin with primary amine functional group demonstrated superior separation of Th(IV) from RE(III). For this resin, 78% of U(VI) and 68% of Th(IV) were adsorbed while RE(III) co-adsorption was less than 5% at 0.0005 mol/L H 2 SO 4 (pH 3). In the case of the strong-acid cation exchange resins, Th(IV) and RE(III) were adsorbed in preference to U(VI), i.e., RE(III) > Th(IV) >> U(VI). The weak-acid cation exchange resins, on the other hand, displayed limited adsorption of all elements.

show abstract

Section: Accepted Manuscriptsupporting

confidence: 64%

The effectiveness of ion exchange resins in separating uranium and thorium from rare earth elements in acidic aqueous sulfate media. Part 1. Anionic and cationic resins

Ang

Nikoloski

2017

Hydrometallurgy

View full text Add to dashboard Cite

show abstract

“…There has been an increasing demand for rare earth elements (REE) in the last few decades due to their unique spectroscopic and magnetic properties and wide range of utilization, particularly, in advanced materials (Humphries, 2013;Kołodyńska and Hubicki, 2012). For example, yttrium is used in laser crystals, catalysts, computer monitors, super conductors, and microwave filters.…”

Section: Introductionmentioning

confidence: 99%

“…One of the greatest challenges in the recovery of REE from different sources is their separation from each other, which is very difficult due to their chemical similarity (Kołodyńska and Hubicki, 2012;Xie et al, 2014). Among various separation techniques, solvent extraction can be an effective way to separate REE from solution.…”

Section: Introductionmentioning

confidence: 99%

“…Neodymium is the base of most common solid-state lasers used in material processing and medicine as well as the key element in high strength Nd-B magnet formulations. Dysprosium plays an important role in the manufacturing of laser materials, nuclear reactors, hybrid cars and color television tubes (El-Nadi, 2012;Gupta and Krishnamurthy, 2005;Kołodyńska and Hubicki, 2012;Maestro and Huguenin, 1995;Preston, 1996;Xie et al, 2014;Zhou et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Separation of ND(III), DY(III) and Y(III) by solvent extraction using D2EHPA and EHEHPA

et al. 2015

View full text Add to dashboard Cite

“…So, the enrichment in light isotopes in anthropogenic materials by comparison with terrestrial rocks is likely to be related to an isotopic fractionation during the purification of Nd from the other REEs. Cation exchange is used to obtain individual lanthanides because it is one of the most successful tools to obtain these elements with a high degree of purity (e.g., Spedding et al, 1956;Powell, 1964;Kolodynska and Hubicki, 2012). Several cation exchange resins with various chemical protocols exist to separate the REEs that might be different from one Nd man-made sample to another.…”

Section: Nature Of the Stable Nd Isotopic Variations In Anthropogenic Materialsmentioning

confidence: 99%

Industrially Purified Nd Materials Identified by Distinct Mass-Dependent Isotopic Composition

Bothamy¹,

Galy²

2021

Front. Environ. Chem.

View full text Add to dashboard Cite

Rare earth elements (REEs) are considered emerging anthropogenic pollutants. Anthropogenic lanthanum, cerium, samarium, and gadolinium alone, or excess of all the REEs have already been reported in the environment. In addition, it is only a matter of time for neodymium (Nd) of anthropogenic origin to be reported disseminated in the environment, given its growing demand for new technologies and its use in permanent magnets of wind turbine. So far, only in a few cases was the addition of anthropogenic Nd detected in soils and sediments by the measurements of REE concentrations. For this reason, we propose to use the Nd isotopic composition to help the distinction of pollution. The isotopic tracing of Nd using variations in the abundance of 143Nd from the radioactive decay of 147Sm (Nd-radiogenic composition) is one option. Here, we expand the Nd isotopic fingerprinting by the investigation of the stable Nd isotopic composition expressed as δxNd, the relative permil (%0) deviation from the isotopic composition of the pure Nd JNdi-1 reference standard. The measurement of δxNd used a MC-ICPMS (multi-collector inductively coupled plasma mass spectrometry) with sample-standard bracketing technique, allowing the determination of precise and accurate Nd isotopic variations. Our results show that Nd-magnets (Neo) and man-made purified Nd materials are not significantly different on average (respectively, δ148Nd of −0.105 ± 0.023 and −0.120 ± 0.141%0). More importantly, they are different from terrestrial rocks (δ148Nd of −0.051 ± 0.031%0). Moreover, the Nd-radiogenic composition of Neo can be highly variable, even when they come from a single supplier. In addition, the study of all Nd stable isotopic compositions demonstrates that irrespective of their natural origin (witnessed by their Nd-radiogenic composition), all Nd from rocks and man-made materials are related by mass-dependent isotopic fractionation laws. We also have defined a parameter, the Δ148−150Nd′, allowing the distinction of thermodynamic isotopic fractionation (the Δ148−150Nd′ is invariant) from kinetic isotopic fractionation (the Δ148−150Nd′ is negatively correlated with the δ148Nd). Such covariation is observed for anthropogenic materials that could be seen as small deficit in 150Nd (around 5 ppm/%0/amu), but too small to be consistent with nuclear field effect. On the other hand, the anthropogenic material defines a covariation in the Δ148−150Nd'–δ148Nd space in full agreement with the theoretical expectation from mass-dependent kinetic isotopic fractionation. The mass-dependent fractionation of Nd by chromatographic separation is also consistent with a kinetic isotopic fractionation. The purification of Nd from other light REEs by industrial processes involves chromatographic separation and, therefore, is likely to produce anthropogenic Nd with low values for δ148Nd associated with high values for Δ148−150Nd′. Both are resolvable with current MC-ICPMS technology and could be useful to trace incoming anthropogenic pollution in the environment. In soils, the combination of low values for δ148Nd with high values for Δ148−150Nd′ is likely to be an unambiguous pollution signal from the degradation in the environment of Neo or other industrial products, especially if this is associated with an Nd-radiogenic composition inconsistent with the surrounding rocks and soils. In contrast, the industrial residue of Nd purification could be characterized by high δ148Nd with low values for Δ148−150Nd′, and the leak or the discharge of such residue could also be unambiguously distinguished.

show abstract

Investigation of Sorption and Separation of Lanthanides on the Ion Exchangers of Various Types

Cited by 27 publications

References 100 publications

The effectiveness of ion exchange resins in separating uranium and thorium from rare earth elements in acidic aqueous sulfate media. Part 1. Anionic and cationic resins

The effectiveness of ion exchange resins in separating uranium and thorium from rare earth elements in acidic aqueous sulfate media. Part 1. Anionic and cationic resins

Separation of ND(III), DY(III) and Y(III) by solvent extraction using D2EHPA and EHEHPA

Industrially Purified Nd Materials Identified by Distinct Mass-Dependent Isotopic Composition

Contact Info

Product

Resources

About