Solvent extraction of europium(III) from nitrate medium with 4-acyl-isoxazol-5-ones and 4-acyl-5-hydroxy-pyrazoles. Effect of salts and diluents

Arichi, Jaouad; Goetz-Grandmont, G.J.; Brunette, J.P.

doi:10.1016/j.hydromet.2006.04.004

Cited by 32 publications

(17 citation statements)

References 30 publications

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“…At similar conditions, this sorbent possesses very high extraction ability towards Eu(III) and UO 2 2+ cations metals; the extraction capacities are 122.5 and 152.2 mg g −1 , respectively [25,26]. is result is attributed to that phosphonic acid derivatives are more selective towards lanthanides elements [27].…”

Section: Rate Of Kinetics Adsorptionmentioning

confidence: 84%

Sorption Efficiency of a New Sorbent towards Cadmium(II): Methylphosphonic Acid Grafted Polystyrene Resin

Ferrah

Abderrahim

Didi

et al. 2012

Journal of Chemistry

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A new chelating polymeric sorbent has been developed using polystyrene resin grafted with phosphonic acid. After characterization by FTIR and elementary analysis, the new resin has been investigated in liquid-solid extraction of cadmium(II). The results indicated that phosphonic resin could adsorb Cd(II) ion effectively from aqueous solution. The adsorption was strongly dependent on the pH of the medium and the optimum pH value level for better sorption was between 3.2 and 5.2. The influence of other analytical parameters including contact time, amount of resin, metal ion concentration, and the presence of some electrolytes was investigated. The maximum uptake capacity of Cd(II) ions was 37,9 mg·g−1grafted resin at ambient temperature, at an initial pH value of 5.0. The overall adsorption process was best described by pseudo second-order kinetic. When Freundlich and Langmuir isotherms were tested, the latter had a better fit with the experimental data. Furthermore, more than 92% of Cd(II) could be eluted by using 1.0 mol·L−1HCl in one cycle.

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Section: Rate Of Kinetics Adsorptionmentioning

confidence: 84%

Sorption Efficiency of a New Sorbent towards Cadmium(II): Methylphosphonic Acid Grafted Polystyrene Resin

Ferrah

Abderrahim

Didi

et al. 2012

Journal of Chemistry

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“…Finally, it should be noted that the driving force of micelle formation is the repulsion occurring between the hydrophobic chains and the polar medium. The stabilization of the formed micelles in our case occurs due to the hydrogen bonds which were formed between the hydroxyl group of salicylaldehyde moiety of the Schiff base ligands and chloroform [54,55].…”

Section: Determination Of Critical Micelle Concentration (Cmc) In Chlmentioning

confidence: 99%

Synthesis and Characterization of a Novel Series of Amphiphilic Mercapto‐1,2,4‐Triazole Schiff Base Ligands: Investigation of their Behavior in Hydro‐Organic Solutions

Boceiri

Benabdallah

Youcef

et al. 2016

J Surfact & Detergents

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A novel series of four Schiff base amphiphiles derived from 3-mercapto-1,2,4-triazole and different alkyl chains were successfully prepared by a new synthetic three-step method. The chemical structures of the different ligands were characterized by elemental analysis, FT-IR spectroscopy, 1 H-NMR and 13 C-NMR spectra. The effect of the chain length on the solution behavior of the amphiphilic ligands were studied, in both homogeneous and heterogeneous systems, using pH-metric and spectrophotometric methods. Based on the electronic spectroscopy data, some parameters governing their surfactant properties, such as the critical micelle concentration (CMC), the micellization free energy (DG mic ) and the hydrophilic-lipophilic balance (HLB) were evaluated in chloroform and discussed. The behavior of the four Schiff bases in the heterogeneous chloroform-water mixture was then explored through the establishment of their acidity (pK A ) and distribution (Log K d ) constants in 1 M chloride medium and the acidity constants in aqueous medium (pK a ) were deduced. Results showed that an increase of the alkyl chain decreases the distribution of the ligands and increases their acidity. The extractive performance of the Schiff base amphiphiles were investigated towards Ni(II) from a chloride medium at 30°C. The analysis of extraction data revealed that the synthesized Schiff bases exhibit a better and faster extractability than many ligands reported in the literature.

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“…The aqueous phase should be saturated enough to produce the salting-out effect with the added salt. With increasing capacity of the extractant higher salt concentrations in the aqueous phase may increase the extraction percentage (Arichi et al, 2006). The effect of various salts like NaNO 3 , KNO 3 and NH 4 NO 3 on the extraction of 0.01 mol/L La(III) by the use of 0.1 mol/L DEHPA and 0.3 mol/L PC88A has been studied at an initial pH of 3.9 and 4.2 respectively.…”

Section: Effect Of Saltsmentioning

confidence: 99%

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

Acharya

Mishra

Misra³

2015

Hydrometallurgy

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Solvent extraction of europium(III) from nitrate medium with 4-acyl-isoxazol-5-ones and 4-acyl-5-hydroxy-pyrazoles. Effect of salts and diluents

Cited by 32 publications

References 30 publications

Sorption Efficiency of a New Sorbent towards Cadmium(II): Methylphosphonic Acid Grafted Polystyrene Resin

Sorption Efficiency of a New Sorbent towards Cadmium(II): Methylphosphonic Acid Grafted Polystyrene Resin

Synthesis and Characterization of a Novel Series of Amphiphilic Mercapto‐1,2,4‐Triazole Schiff Base Ligands: Investigation of their Behavior in Hydro‐Organic Solutions

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

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