Solvent extraction of La(III) and Nd(III) from nitrate solutions with 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester

Kao, Hsiang‐Chien; Yen, Pei-Shin; Juang, Ruey‐Shin

doi:10.1016/j.cej.2006.03.024

Cited by 63 publications

(31 citation statements)

References 18 publications

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“…The extractability of the system increases in the following order: lanthanum(III) < < europium(III). The increase in extraction percent from lanthanum(III) to europium(III); is due to an increase in the acidity of these elements, related to the systematic reduction in the ionic radii in the lanthanide series from lanthanum(III) to lutetium (III), known as the lanthanidic contraction phenomenon.The same behavior was found in many studies, for the extraction of rare earth elements by organophosphorus extractants [8,[16][17][18][19].…”

Section: Salting Effect On Extraction Of Lanthanum (Iii) and Europiumsupporting

confidence: 55%

Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

Boulenouar

Kaid²,

Abbes³

et al. 2016

SERDJ

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The solvent extraction of lanthanum(III) and europium(III) by aminooctyldimethylene diphosphonic acid from nitrate media was investigated. The extraction percent of lanthanum(III) and europium(III) was measured as a function of various parameters such as: volume ratio, shaking time, the concentration of aminooctyldimethylene diphosphonic acid, ionic strength and media pH. The metal concentration in the aqueous phase before and after extraction was determined spectrophotometrically by the Arsenazo III method. The extracted species and equilibrium extraction equations were determined by the slope analysis method. It was found that adding KNO 3 at a concentration of 0.1 M significantly enhances the extraction yield for lanthanum(III) and europium(III). Decreasing the media pH caused a gradual decrease of extraction yields. The obtained results showed that extraction of lanthanum(III) and europium(III) from nitrate media using aminooctyldimethylene diphosphonic acid in chloroform is quantitative under well-defined conditions.

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Section: Salting Effect On Extraction Of Lanthanum (Iii) and Europiumsupporting

confidence: 55%

Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

Boulenouar

Kaid²,

Abbes³

et al. 2016

SERDJ

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“…Under comparable conditions, PC88A shows superior separation efficiency for Nd(III) and La(III) from nitrate solutions than DEHPA in kerosene (Kao et al, 2006). The separation factor of Nd(III) over La(III) increased with increasing the initial metal concentration ratio of Nd(III) and La(III).…”

Section: Separation Studiesmentioning

confidence: 87%

Studies on extraction and separation of La(III) with DEHPA and PC88A in petrofin

Acharya

Mishra

Misra³

2015

Hydrometallurgy

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“…A first overview of the evolution in time of the extraction process shows that neodymium extraction yield increases as a function of time, where the time needed for magnetic nanoparticles to adsorb the maximum Nd(III) is 30 min for both sizes. This short contact time is very interesting for liquid-solid extraction, because in the literature, most studies were done with liquid-liquid extraction such as the studies cited in these references [27][28][29][30][31][32]. …”

Section: Effect Of Contact Timementioning

confidence: 98%

Neodymium(III) removal by functionalized magnetic nanoparticles

Miraoui

Didi

Villemin

2015

J Radioanal Nucl Chem

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In this paper, neodymium removed by liquidsolid extraction is made by magnetic nanoparticles functionalized by the poly(aminoethylene N-methyl 1-formic acid, 1-phosphonic acid) (PAEMFP), with two different sizes. For a quantity of 0.01 g of magnetic particles some parameters were studied. Optimal extraction yield was achieved in a initial pH equal at 7.0 for fine particles and pH 6.0 for the large particles. The experimental capacity obtained was 25 mg g -1 for larges particles and 23 mg g -1 for fines particles. The quantitative elution study of neodymium(III) can be realized with acetic acid 0.5 mol L -1 after 120 min of shaking for two sizes.

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Solvent extraction of La(III) and Nd(III) from nitrate solutions with 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester

Cited by 63 publications

References 18 publications

Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

Studies on extraction and separation of La(III) with DEHPA and PC88A in petrofin

Neodymium(III) removal by functionalized magnetic nanoparticles

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