scholarly journals Non-aqueous solvent extraction of indium from an ethylene glycol feed solution by the ionic liquid Cyphos IL 101: speciation study and continuous counter-current process in mixer–settlers

RSC Advances ◽  
2020 ◽  
Vol 10 (41) ◽  
pp. 24595-24612 ◽  
Author(s):  
Clio Deferm ◽  
Bieke Onghena ◽  
Viet Tu Nguyen ◽  
Dipanjan Banerjee ◽  
Jan Fransaer ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solvent Extraction ◽  
Ethylene Glycol ◽  
Feed Solution ◽  
Aqueous Solvent ◽  
Speciation Study ◽  
Cyphos Il 101 ◽  
Glycol Solution ◽  
Counter Current ◽  
Insight Into

Speciation studies give insight into the mechanism of non-aqueous solvent extraction of indium from ethylene glycol solution by the ionic liquid Cyphos IL 101.

scholarly journals Separation of rare-earth ions from ethylene glycol (+LiCl) solutions by non-aqueous solvent extraction with Cyanex 923

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45351-45362 ◽  
Author(s):  
Nagaphani Kumar Batchu ◽  
Tom Vander Hoogerstraete ◽  
Dipanjan Banerjee ◽  
Koen Binnemans
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Ethylene Glycol ◽  
Rare Earths ◽  
Rare Earth Ions ◽  
Aqueous Solvent ◽  
Cyanex 923

Mixtures of rare earths are separation by non-aqueous solvent extraction with two immiscible organic phases.

scholarly journals Metal extraction from a deep eutectic solvent, an insight into activities

2020 ◽  
Vol 22 (19) ◽  
pp. 11012-11024 ◽  
Author(s):  
Peng Cen ◽  
Kastriot Spahiu ◽  
Mikhail S. Tyumentsev ◽  
Mark R. St. J. Foreman
Keyword(s):  
Solvent Extraction ◽  
Ethylene Glycol ◽  
Metal Complexes ◽  
Deep Eutectic Solvent ◽  
Metal Extraction ◽  
Insight Into

By using the SIT equation and solvent extraction to consider activities of chloride and metal complexes in the aqueous and ethylene glycol layers, it is figuratively like viewing the system through a special lens which makes everything clearer.

Highly selective separation of individual platinum group metals (Pd, Pt, Rh) from acidic chloride media using phosphonium-based ionic liquid in aromatic diluent

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62717-62728 ◽  
Author(s):  
Viet Tu Nguyen ◽  
Jae-chun Lee ◽  
Alexandre Chagnes ◽  
Min-seuk Kim ◽  
Jinki Jeong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solvent Extraction ◽  
High Purity ◽  
Selective Separation ◽  
Platinum Group Metals ◽  
Aromatic Solvent ◽  
Acidic Chloride ◽  
Platinum Group ◽  
Cyphos Il 101

An effective solvent extraction-based method has been developed to recover individually platinum group metals (Pd, Pt, and Rh) with high purity from acidic chloride media using phosphonium-based ionic liquid Cyphos IL 101 in aromatic solvent.

scholarly journals Non-aqueous solvent extraction of rare-earth nitrates from ethylene glycol to n-dodecane by Cyanex 923

2017 ◽  
Vol 174 ◽  
pp. 544-553 ◽  
Author(s):  
Nagaphani Kumar Batchu ◽  
Tom Vander Hoogerstraete ◽  
Dipanjan Banerjee ◽  
Koen Binnemans
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Ethylene Glycol ◽  
Rare Earth Nitrates ◽  
Aqueous Solvent ◽  
Cyanex 923

Deacification of High Acid-Containing Crude by Solvent Extraction under Ultrasonic Irradiation

2014 ◽  
Vol 521 ◽  
pp. 638-643
Author(s):  
Hong Guan Wu ◽  
Hai Feng Li ◽  
Guo Xian Yu
Keyword(s):  
Reaction Time ◽  
Solvent Extraction ◽  
Ethylene Glycol ◽  
Ultrasonic Irradiation ◽  
Weight Ratio ◽  
Acid Value ◽  
Naphthenic Acids ◽  
Extraction Solvent ◽  
Glycol Solution ◽  
Temperature Time

A compounded deacidificant was used for deacidification of domestic Bei-Jiang crude. In this work, its formulation was optimized in detail. Effect of reaction temperature, time and the ratio to crude oil was examined. Acceleration by using ultrasonic irritation in deacidification process was investigated. Our results revealed a deacificant composed of ethylene glycol as neutralization agent and cyclohexylamine as extraction solvent not only provided an excellent deacidificcation extent, but also no emulsion problem appeared. 30% cyclohexylamine-containing ethylene glycol solution has the best performance. Deacidification extent reached 85% and higher at a solvent and oil weight ratio of 15%.Ultrasonic wave played an accerleration role, resulting in a shorter reaction time. Naphthenic acids and solvent components were recovered by using vacuum distillation.The recovery rate for solvent components were 99.3% for ethylene and 96.6% for cyclohexylamine respectively. The purity of recovered naphthenic acids was rather high, reaching a acid value of 167.

scholarly journals Cobalt(ii)/nickel(ii) separation from sulfate media by solvent extraction with an undiluted quaternary phosphonium ionic liquid

RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 35992-35999 ◽  
Author(s):  
Bieke Onghena ◽  
Stijn Valgaeren ◽  
Tom Vander Hoogerstraete ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquid ◽  
Solvent Extraction ◽  
Phosphonium Ionic Liquid ◽  
Cyphos Il 101

Co(ii) is separated from Ni(ii) in sulfate media by extraction with the ionic liquid Cyphos IL 101 in its chloride and thiocyanate form.

scholarly journals Recovery of Copper(II) and Silver(I) from Nitrate Leaching Solution of Industrial Dust via Solvent Extraction with LIX63

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1300
Author(s):  
Pan-Pan Sun ◽  
Tae-Young Kim ◽  
Hyeon Seo ◽  
Sung-Yong Cho
Keyword(s):  
Nitric Acid ◽  
Solvent Extraction ◽  
Metal Ions ◽  
Nitrate Leaching ◽  
Extraction Efficiency ◽  
Feed Solution ◽  
Industrial Dust ◽  
Complete Extraction ◽  
Leaching Solution ◽  
Counter Current

A nitrate leachate containing Cu(II), Ag(I), Ni(II), Mg(II), and Al(III) was obtained during the leaching of industrial dust, which arises during the pyrometallurgy of spent camera modules. To separate and recover Cu(II) and Ag(I) from the leaching solution, solvent extraction experiments using 5,8-diethyl-7-hydroxydodecan-6-oxime (LIX63) were conducted. LIX63 was found to selectively extract Cu(II) and Ag(I) over other metal ions (Ni(II), Mg(II), and Al(III)) at low nitric acid concentrations. The extraction efficiency of Cu(II) was more affected than that of Ag(I) by the acidity of the feed solution and the LIX63 concentration in the organic phase. Cu(II) and Ag(I) were simultaneously extracted using 2 mol/L LIX63. Cu(II) was separated from the loaded LIX63 via stripping with 4 mol/L HNO3, whereas Ag(I) was recovered via stripping with 0.1 mol/L thiourea after the removal of Cu(II). McCabe–Thiele diagrams for the extraction and stripping of Cu(II) and Ag(I) were constructed. The complete extraction of Cu(II) and Ag(I) was confirmed via counter-current extraction. Moreover, stripping simulation tests confirmed that higher than 99.99% of Cu(II) and 99.2% of Ag(I) were stripped. The purities of Cu(II) and Ag(I) in the recovered solution were 95.2% and 99.993%, respectively. A process flow chart for the recovery of Cu(II) and Ag(I) from the nitrate leachate of the target industrial dust was also provided.

Dynamics of Ion Locking in Doubly Polymerized Ionic Liquids

2020 ◽  
Author(s):  
Swati Arora ◽  
Julisa Rozon ◽  
Jennifer Laaser
Keyword(s):  
Dielectric Constant ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ion Pairs ◽  
Polymer Chains ◽  
Ion Motion ◽  
Charged Species ◽  
Broadband Dielectric Spectroscopy ◽  
Covalently Linked ◽  
Insight Into

<div>In this work, we investigate the dynamics of ion motion in “doubly-polymerized” ionic liquids (DPILs) in which both charged species of an ionic liquid are covalently linked to the same polymer chains. Broadband dielectric spectroscopy is used to characterize these materials over a broad frequency and temperature range, and their behavior is compared to that of conventional “singly-polymerized” ionic liquids (SPILs) in which only one of the charged species is attached to the polymer chains. Polymerization of the DPIL decreases the bulk ionic conductivity by four orders of magnitude relative to both SPILs. The timescales for local ionic rearrangement are similarly found to be approximately four orders of magnitude slower in the DPILs than in the SPILs, and the DPILs also have a lower static dielectric constant. These results suggest that copolymerization of the ionic monomers affects ion motion on both the bulk and the local scales, with ion pairs serving to form strong physical crosslinks between the polymer chains. This study provides quantitative insight into the energetics and timescales of ion motion that drive the phenomenon of “ion locking” currently under investigation for new classes of organic electronics.</div>

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