scholarly journals Extraction of iridium(iv) from aqueous solutions using hydrophilic/hydrophobic ionic liquids

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48260-48266 ◽  
Author(s):  
Nicolas Papaiconomou ◽  
Isabelle Billard ◽  
Eric Chainet
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Metal Complexes ◽  
Distribution Coefficients ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Anionic Metal Complexes ◽  
Hydrophobic Ionic Liquids ◽  
P Removal

Removal of iridium(iv) using hydrophilic or hydrophobic ionic liquids was studied. IrCl62− anionic metal complexes were precipitated out from water using bromide-based ionic liquids, yielding water-insoluble salts with low Ks values. Liquid–liquid extraction of Ir(iv) using [NTf2]-based ionic liquids yielded distribution coefficients up to 70 with [OMIM][NTf2] at pH 2.

Liquid-liquid extraction of cobalt(II) and zinc(II) from aqueous solutions using novel ionic liquids as an extractants

2020 ◽  
Vol 307 ◽  
pp. 112955 ◽  
Author(s):  
Aneta Łukomska ◽  
Anna Wiśniewska ◽  
Zbigniew Dąbrowski ◽  
Urszula Domańska
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction

Liquid-liquid extraction of chlorophenols from wastewater using hydrophobic ionic liquids

2019 ◽  
Vol 294 ◽  
pp. 111680 ◽  
Author(s):  
R. Sulaiman ◽  
I. Adeyemi ◽  
S.R. Abraham ◽  
S.W. Hasan ◽  
I.M. AlNashef
Keyword(s):  
Ionic Liquids ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Hydrophobic Ionic Liquids

scholarly journals Liquid-Liquid Extraction of Ferric Ions Into the Ionic Liquids

2021 ◽  
Author(s):  
Katerina Cubova ◽  
Miroslava Semelova ◽  
Mojmir Nemec ◽  
Vit Benes
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Liquid Extraction ◽  
Ferric Ions ◽  
Imidazolium Ionic Liquids ◽  
Liquid Liquid Extraction ◽  
Oxalic Acids ◽  
Extracting Agents

(200 words) Imidazolium ionic liquids containing acetylacetone, thenoyltrifluoroacetone, or 8-hydroxyquinoline, respectively, were used as the extracting agents for the separation of traces of iron (III) from its aqueous solutions with or without citric and oxalic acids. The results show that 8-hydroxyquinoline in imidazolium ionic liquids extract iron quantitatively from all the tested solutions including complexing ones, regardless indications of unexpected iron behavior/speciation.

Room Temperature Ionic Liquids as Novel Media for Zn Ions Extraction from Aqueous Solutions

2012 ◽  
Vol 1380 ◽  
Author(s):  
Leticia E. Hernández Cruz ◽  
Felipe Legorreta García ◽  
Ana M. Herrera González
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Extraction Process ◽  
Distribution Coefficients ◽  
Liquid Extraction ◽  
Metal Extraction ◽  
High Affinity ◽  
Low Viscosity ◽  
Liquid Liquid Extraction ◽  
Zn Ions

ABSTRACTWastewaters often contain offensive cations. Because of their high affinity for water, it is difficult to remove those using conventional solvents for liquid- liquid extraction [1]. Hydrophobic ionic liquids may provide a useful extraction process. Because the properties of ionic liquids are turnable, it may be possible to identify some ionic liquids that have low viscosity, very low solubility in water, and high affinity for select metal ions [2]. In this sense in this work liquid- liquid extraction of dilute Zn ions from water was performed near room temperature with two ionic liquids (IL). Distribution coefficients are reported for Zn ions extracted with bromide 1-hexyl-pyridinium and bromide 1-octyl-pyridinium diluted in decanol. The extraction has been studied, and these confirmed that the metal extraction proceeds via a cation – exchange mechanism. Furthermore, stripping of Zn (II) from ILs into an aqueous phase by sulfuric acid (1 M) and recycling of the extracting ILs phase was successfully accomplished.

Efficient extraction of gold from water by liquid–liquid extraction or precipitation using hydrophobic ionic liquids

2014 ◽  
Vol 38 (11) ◽  
pp. 5573-5581 ◽  
Author(s):  
Stéphanie Boudesocque ◽  
Aminou Mohamadou ◽  
Laurent Dupont
Keyword(s):  
Ionic Liquids ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Efficient Extraction ◽  
Hydrophobic Ionic Liquids

Tetrahalogenoaurate anions have been successfully removed from water using betaine derivative cationic ionic liquids, by precipitation using hydrophilic ionic liquids or by liquid–liquid extraction with hydrophobic ionic liquids.

scholarly journals Liquid-Liquid Extraction of Ferric Ions into the Ionic Liquids

Minerals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 11
Author(s):  
Katerina Cubova ◽  
Miroslava Semelova ◽  
Mojmir Nemec ◽  
Vit Benes
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Liquid Extraction ◽  
Ferric Ions ◽  
Imidazolium Ionic Liquids ◽  
Liquid Liquid Extraction ◽  
Oxalic Acids ◽  
Extracting Agents

Imidazolium ionic liquids containing acetylacetone, thenoyltrifluoroacetone, or 8-hydroxyquinoline, respectively, were used as the extracting agents for the separation of traces of iron (III) from its aqueous solutions with or without citric and oxalic acids. The results show that 8-hydroxyquinoline in imidazolium ionic liquids extract iron quantitatively from all the tested solutions including complexing ones, regardless of indications of unexpected iron behavior/speciation.

Liquid–liquid extraction of neodymium ions from aqueous solutions of NdCl3 by phosphonium-based ionic liquids

2016 ◽  
Vol 171 ◽  
pp. 263-269 ◽  
Author(s):  
Mrutyunjay Panigrahi ◽  
Mariusz Grabda ◽  
Dmytro Kozak ◽  
Arunkumar Dorai ◽  
Etsuro Shibata ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction
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