Extraction Behavior of Rare Earths in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 5,7-Dichloro-8-Hydroxy Quinoline

2012 ◽  
Vol 189 ◽  
pp. 75-79
Author(s):  
Zhong Wei Pan ◽  
Sheng Guo Zhao ◽  
Tian Ci Wu ◽  
Jin Ding Pan
Keyword(s):  
Ionic Liquid ◽  
Complete Recovery ◽  
Liquid Extraction ◽  
Rare Earth Ions ◽  
Extraction System ◽  
Tetraacetic Acid ◽  
Extraction Percentage ◽  
Extraction Solvent ◽  
Extraction Behavior ◽  
Hydroxy Quinoline

The extraction behavior of five rare earth ions (RE3+) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl-imidazolium hexafluorophosphate ([Bmim]PF6) ionic liquid as extraction solvent and 5,7-dichloro-8-hydroxy quinoline (HQ) as extractant. The extraction percentage of RE3+ using [Bmim]PF6 was less than 8% without HQ. When sufficient HQ was included in IL phase, the extraction percentage of RE3+ could be higher than 99% except La3+. The extracted species in the RE3+-[Bmim]PF6-HQ system was neutral REQ3 and complete recovery of RE3+ extracted into [Bmim]PF6 can be achieved using the mixture of hydrazine hydrate and ethylenediamine tetraacetic acid (EDTA) as stripping agent. [Bmim]PF6 can be recycled in the experiment.

Extraction Behavior of Rare Earths in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and Benzoyl Acetone

2011 ◽  
Vol 335-336 ◽  
pp. 1428-1432 ◽  
Author(s):  
Zhong Wei Pan ◽  
Chang Ma ◽  
Ying Wu Zhang ◽  
Yu Xia Huang ◽  
Xing Lin Chen ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Rare Earth ◽  
Rare Earths ◽  
Liquid Extraction ◽  
Rare Earth Ions ◽  
Extraction System ◽  
Tetraacetic Acid ◽  
Extraction Percentage ◽  
Extraction Solvent ◽  
Extraction Behavior

The extraction behavior of five rare earth ions (RE3+) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl-imidazolium hexafluorophosphate ionic liquid ([Bmim]PF6) as extraction solvent and benzoyl acetone (HA) as extractant. The extraction percentage of RE3+ using [Bmim]PF6 was less than 8% without HA. When sufficient HA was included in IL phase, the extraction percentage of RE3+ could be higher than 98%. The extracted species in the RE3+-[Bmim]PF6-HA system was neutral REA3 and the recovery of RE3+ extracted into [Bmim]PF6 can be achieved using the mixture of hydrazine hydrate and ethylenediamine tetraacetic acid (EDTA) as stripping agent. [Bmim]PF6 can be recycled in the experiment.

Extraction Behavior of Mercury(II) and Cadmium(II) in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 8-Hydroxyl-Quinoline

2011 ◽  
Vol 117-119 ◽  
pp. 1103-1106 ◽  
Author(s):  
Zhong Wei Pan ◽  
Chang Ma ◽  
Hai Long Zhou ◽  
Ting Lian ◽  
Chuan Ye Lai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Metal Ions ◽  
Liquid Extraction ◽  
Extraction System ◽  
Extraction Percentage ◽  
Extraction Solvent ◽  
Extraction Behavior

The extraction behavior of metal ions (Hg2+ and Cd2+, M2+) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl- imidazolium hexafluorophosphate ionic liquid ([Bmim]PF6) as extraction solvent and 8-hydroxyl-quinoline (HQ) as extractant. The extraction percentage of M2+ using [Bmim]PF6 was less than 5% without HQ. When sufficient HQ was included in IL phase, the extraction percentage of M2+ could be higher than 98%. The extracted species in the M2+-[Bmim]PF6-HQ system was neutral MQ2 and the recovery of M2+ extracted into [Bmim]PF6 can be achieved using 0.25 mol•L-1 HNO3 as stripping agent. [Bmim]PF6 can be recycled in the experiment.

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.

Extraction Behavior of Scandium Cation in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 2-Ethylhexyl Phosphonic Acid-2-Ethylhexyl Ester

2011 ◽  
Vol 306-307 ◽  
pp. 1524-1527 ◽  
Author(s):  
Zhong Wei Pan ◽  
Guo Qing Li ◽  
Liang Bao Lin
Keyword(s):  
Ionic Liquid ◽  
Phosphonic Acid ◽  
Liquid Extraction ◽  
Extraction System ◽  
Extraction Solvent ◽  
Extraction Behavior ◽  
Percentage Extraction

The extraction behavior of scandium ion (Sc3+) was investigated using 1-butyl-3-methyl -imidazolium hexafluorophosphate ([Bmim]PF6­) ionic liquid as extraction solvent and 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (P507, HA) as extractant. The extractablity of Sc3+ using [Bmim]PF6­ was less than 5% without P507. When the initial P507 concentration in IL phase was 0.2 mol/L, percentage extraction of 5×10-5 mol·L-1 Sc3+ exceeded 99%. The results showed that the extracted species in the Sc3+­-P507-[Bmim]PF6 system was neutral ScA3 and [Bmim]PF6 solvent could be used repeatedly.

A uranium capture strategy based on self-assembly in a hydroxyl-functionalized ionic liquid extraction system

2019 ◽  
Vol 55 (48) ◽  
pp. 6894-6897 ◽  
Author(s):  
Baihua Chen ◽  
Kaige Wu ◽  
Yanqiu Yang ◽  
Ning Wang ◽  
Yi Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Self Assembly ◽  
Liquid Extraction ◽  
Extraction System ◽  
Functionalized Ionic Liquid ◽  
System P ◽  
One Step ◽  
The One

A novel and efficient uranium capture strategy based on self-assembly is developed in an ionic liquid extraction system, by which the one-step separation and solidification of uranium are realized.

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