Selective Extraction of Metal Ions from Aqueous Phase to Ionic Liquids: A Novel Thermodynamic Approach to Separations

ChemPhysChem ◽  
2014 ◽  
Vol 15 (16) ◽  
pp. 3536-3543 ◽  
Author(s):  
Camiel H. C. Janssen ◽  
Antonio Sánchez ◽  
Mark N. Kobrak
Keyword(s):  
Ionic Liquids ◽  
Metal Ions ◽  
Aqueous Phase ◽  
Selective Extraction ◽  
Thermodynamic Approach

scholarly journals Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12398-12422
Author(s):  
Amir Sada Khan ◽  
Taleb H. Ibrahim ◽  
Nabil Abdel Jabbar ◽  
Mustafa I. Khamis ◽  
Paul Nancarrow ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Phenolic Compounds ◽  
Liquid Phase ◽  
Aqueous Phase ◽  
Process Parameters ◽  
Deep Eutectic Solvents

Extraction of phenol from aqueous phase to ionic liquid phase.

Effects of Metal Ions on the Aluminum Electrodeposition from Ionic Liquids

2017 ◽  
Vol 26 (2) ◽  
pp. 685-691 ◽  
Author(s):  
Stefano Caporali ◽  
Stefano M. Martinuzzi ◽  
Peter Von Czarnecki ◽  
Thomas J. S. Schubert ◽  
Ugo Bardi
Keyword(s):  
Ionic Liquids ◽  
Metal Ions

Selective extraction of metal ions associated with humic acids

Talanta ◽  
1982 ◽  
Vol 29 (9) ◽  
pp. 743-749 ◽  
Author(s):  
J. Slavek ◽  
J. Wold ◽  
W.F. Pickering
Keyword(s):  
Metal Ions ◽  
Humic Acids ◽  
Selective Extraction

Applying electrohydrodynamic atomization to enhance mass transfer of metal salts from an aqueous phase towards ionic liquids

2016 ◽  
Vol 80 ◽  
pp. 1-7 ◽  
Author(s):  
Dries Parmentier ◽  
Anna Rybałtowska ◽  
Jasper van Smeden ◽  
Maaike C. Kroon ◽  
Jan C.M. Marijnissen ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Ionic Liquids ◽  
Aqueous Phase ◽  
Metal Salts ◽  
Electrohydrodynamic Atomization ◽  
Enhance Mass

Hydrophobic–hydrophilic ionic liquids for the extraction and determination of metal ions with water-soluble reagents

2015 ◽  
Vol 7 (22) ◽  
pp. 9629-9635 ◽  
Author(s):  
S. V. Smirnova ◽  
T. O. Samarina ◽  
I. V. Pletnev
Keyword(s):  
Ionic Liquids ◽  
Metal Ions ◽  
Water Soluble ◽  
Analytical Reagents

Water-immiscible water-rich ionic liquids + water-soluble analytical reagents = a novel extraction-based platform for the determination of metal ions.

Selective Transport of Water-Soluble Proteins from Aqueous to Ionic Liquid Phase via a Temperature-Sensitive Phase Change of These Mixtures

2012 ◽  
Vol 65 (11) ◽  
pp. 1548 ◽  
Author(s):  
Yuki Kohno ◽  
Nobuhumi Nakamura ◽  
Hiroyuki Ohno
Keyword(s):  
Phase Change ◽  
Aqueous Phase ◽  
Selective Dissolution ◽  
Selective Extraction ◽  
Soluble Proteins ◽  
Water Soluble ◽  
Temperature Sensitive ◽  
Salting Out ◽  
Key Factor ◽  
The Difference

Mixtures of some ionic liquids (ILs) and water show reversible phase change between a homogeneous mixture and phase-separated state by a small change in temperature. Some water-soluble proteins have been migrated from the aqueous to the IL phase. When tetrabutylphosphonium 2,4,6-trimethylbenzenesulfonate was used as an IL, cytochrome c (Cyt.c) was found to be extracted from the water phase to the IL phase. Conversely, both horseradish peroxidase (HRP) and azurin remained in the aqueous phase. This selective extraction was comprehended to be due to the difference in solubility of these proteins in both phases. The separated aqueous phase contained a small amount of IL, which induced the salting-out of Cyt.c. On the other hand, condensed IL phase promoted the salting-in of Cyt.c. As a result, Cyt.c was preferably dissolved in the hydrated IL phase rather than aqueous phase. In the case of HRP, there was only a salting-out profile upon increasing the concentration of IL, which induced selective dissolution of HRP in the aqueous phase. These results clearly suggest that the profile of salting-out and salting-in for proteins is the key factor to facilitate the selective extraction of proteins from aqueous to the IL phase.

scholarly journals The role of transition metal ions on HO<sub>x</sub> radicals in clouds: a numerical evaluation of its impact on multiphase chemistry

2004 ◽  
Vol 4 (1) ◽  
pp. 95-110 ◽  
Author(s):  
L. Deguillaume ◽  
M. Leriche ◽  
A. Monod ◽  
N. Chaumerliac
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Aqueous Phase ◽  
Numerical Evaluation ◽  
Transition Metal Ions ◽  
Cloud Chemistry ◽  
Sensitivity Tests ◽  
Fe Speciation ◽  
Deposition Processes

Abstract. A new modelling study of the role of transition metal ions on cloud chemistry has been performed. Developments of the Model of Multiphase Cloud Chemistry (M2C2; Leriche et al., 2001) are described, including the transition metal ions reactivity emission/deposition processes and variable photolysis in the aqueous phase. The model is then applied to three summertime scenarios under urban, remote and marine conditions, described by Ervens et al. (2003). Chemical regimes in clouds are analyzed to understand the role of transition metal ions on cloud chemistry and especially, on HxOy chemistry, which consequently influences the sulphur and the VOCs chemistry in droplets. The ratio of Fe(II)/Fe(III) exhibits a diurnal variation with values in agreement with the available measurements of Fe speciation. In the urban case, sensitivity tests with and without TMI chemistry, show an enhancement of OH concentration in the aqueous phase when TMI chemistry is considered.

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