scholarly journals Synergistic Extraction Equilibrium of Lanthanide(III) Ions with Benzoylacetone and a Neutral Ligand in an Ionic Liquid

2018 ◽  
Vol 25 (2) ◽  
pp. 79-89 ◽  
Author(s):  
Mizuki HATAKEYAMA ◽  
Yoshio NISHIYAMA ◽  
Hirohisa NAGATANI ◽  
Hiroyuki OKAMURA ◽  
Hisanori IMURA
Keyword(s):  
Ionic Liquid ◽  
Synergistic Extraction ◽  
Neutral Ligand ◽  
Extraction Equilibrium

scholarly journals Permeation of AuCl4− Across a Liquid Membrane Impregnated with A324H+Cl− Ionic Liquid

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 363 ◽  
Author(s):  
Francisco José Alguacil ◽  
Félix A. López
Keyword(s):  
Ionic Liquid ◽  
Liquid Membrane ◽  
Extraction Constant ◽  
Hydrodynamic Conditions ◽  
Membrane Diffusion ◽  
Extraction Equilibrium ◽  
Liquid Liquid Extraction ◽  
Flat Sheet ◽  
Boundary Layer Diffusion ◽  
Aqueous Feed

In the system Au(III)-HCl-A324H+Cl−, liquid-liquid extraction experiments were used to define the extraction equilibrium and the corresponding extraction constant; furthermore, the facilitated transport of this precious metal from HCl solutions across a flat-sheet supported liquid membrane was investigated using the same ionic liquid as a carrier, and as a function of different variables: hydrodynamic conditions, concentration of gold(III) (0.01–0.1 g/L), and HCl (0.5–6 M) in the feed phase, and carrier concentration (0.023–0.92 M) in the membrane. An uphill transport equation was derived considering aqueous feed boundary layer diffusion and membrane diffusion as controlling steps. The aqueous diffusional resistance (Δf) and the membrane diffusional resistance (Δm) were estimated from the proposed equation with values of 241 s/cm and 9730 s/cm, respectively. The performance of the present carrier was compared against results yielded by other ionic liquids, and the influence that other metals had on gold(III) transport from both binary or quaternary solutions was also investigated. Gold was finally recovered from receiving solutions as zero valent gold nanoparticles.

Synergistic extraction of Ce(III), Tb(III) and Lu(III) with a mixture of hexafluoroacetylacetone and triphenylphosphineoxide in benzene

2007 ◽  
Vol 95 (12) ◽  
Author(s):  
Moazzaz Ali Rizvi ◽  
Akbar Ali ◽  
Mohammad Saeed Iqbal
Keyword(s):  
Aqueous Solution ◽  
Ionic Strength ◽  
Solvent Extraction ◽  
Chelating Agent ◽  
Triphenylphosphine Oxide ◽  
Synergistic Extraction ◽  
Neutral Ligand ◽  
Trivalent Lanthanides ◽  
Synergistic Solvent Extraction

SummaryThe synergistic solvent extraction of trivalent lanthanides such as Ce(III), Tb(III) and Lu(III) has been studied with a mixture of hexafluoroacetylacetone (HHFA) acting as an acidic chelating agent and triphenylphosphine oxide (TPPO) as a neutral ligand in benzene from aqueous solution of pH 2.5 having ionic strength 0.01 mol dm

Studies on Extraction Equilibrium of Rare Earths in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 1-Phenyl-3-Methyl-4-Benzoyl-Pyrazolone-5

2012 ◽  
Vol 602-604 ◽  
pp. 887-891 ◽  
Author(s):  
Zhong Wei Pan ◽  
Jin Huo Lin ◽  
Wen Jie Li ◽  
Tian Ci Wu ◽  
Jin Ding Pan
Keyword(s):  
Ionic Liquid ◽  
Rare Earths ◽  
Equilibrium Constants ◽  
Complete Recovery ◽  
Liquid Extraction ◽  
Rare Earth Ions ◽  
Extraction System ◽  
Extraction Equilibrium ◽  
Extraction Solvent ◽  
Separation Factors

The extraction equilibrium of four rare earth ions (REn+, n = 3 or 4) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl-imidazolium hexafluorophosphate ([Bmim]PF6) ionic liquid as extraction solvent and 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (HPMBP, HP) as extractant. The extraction percentage could be higher than 99%. The extracted species in the REn+-[Bmim]PF6-HP system was neutral REPn (n = 3 or 4) and complete recovery of REn+ extracted into [Bmim]PF6 can be achieved using diluent HCl as stripping agent. [Bmim]PF6 can be recycled in the experiment. The extraction equilibrium constants and the pH1/2 values of four REs and their separation factors between adjacent rare earths were estimated and comparatively studied.

scholarly journals Synergistic extraction of uranium(VI) with TODGA and hydrophobic ionic liquid mixtures into molecular diluent

2016 ◽  
Vol 164 ◽  
pp. 97-106 ◽  
Author(s):  
A.N. Turanov ◽  
V.K. Karandashev ◽  
M. Boltoeva ◽  
C. Gaillard ◽  
V. Mazan
Keyword(s):  
Ionic Liquid ◽  
Liquid Mixtures ◽  
Synergistic Extraction ◽  
Hydrophobic Ionic Liquid

Separation of cobalt and nickel using inner synergistic extraction from bifunctional ionic liquid extractant (Bif-ILE)

2010 ◽  
Vol 182 (1-3) ◽  
pp. 447-452 ◽  
Author(s):  
Xiaoqi Sun ◽  
Yang Ji ◽  
Lina Zhang ◽  
Ji Chen ◽  
Deqian Li
Keyword(s):  
Ionic Liquid ◽  
Synergistic Extraction ◽  
Cobalt And Nickel

Voltammetric investigation of some lanthanides in neutral ligand-ionic liquid

2020 ◽  
Vol 856 ◽  
pp. 113671 ◽  
Author(s):  
G. Murali Krishna ◽  
Alok Rout ◽  
K.A. Venkatesan
Keyword(s):  
Ionic Liquid ◽  
Neutral Ligand
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