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Interactions Between Ionic Liquid (ALiCY) and TBP and their Use in Hydrometallurgy for Extracting Co(II) and Ni(II)
Thanh Tuan Tran, Man Seung Lee
Korean J. Met. Mater. 2020;58(6):423-432.   Published online 2020 May 14
DOI: https://doi.org/10.3365/KJMM.2020.58.6.423

Ionic liquids have emerged in hydrometallurgy as potential extractants for metals. In this work, the interactions of ALiCY (R4N+A-) synthesized by Aliquat336 and Cyanex272, and a mixture of ALiCY and TBP, were analyzed using extraction data and FT-IR spectroscopy. Co(II) and Ni(II) were extracted from two HCl concentrations (1.0×10-4 and..... More

Separation of Tb(III) and Dy(III) from Chloride Solution by Extraction and Scrubbing with Ionic Liquid Prepared with Cyanex 272 and Aliquat 336
Cyanex 272와 Aliquat 336으로 제조한 이온성액체로 염산용액에서 추출과 세정에 의한 터븀(III) 및 디스프로슘(III)의 분리
Chang Geun Oh, Seong Ho Son, Man Seung Lee
오창근, 손성호, 이만승
Korean J. Met. Mater. 2019;57(8):499-505.   Published online 2019 Jul 8
DOI: https://doi.org/10.3365/KJMM.2019.57.8.499

Terbium and dysprosium are rare earth elements which are employed in the manufacture of advanced materials. Separating Tb(III) and Dy(III) is very complicated because their chemical properties are similar. In order to develop a separation process based on solvent extraction, extraction and scrubbing experiments were conducted using weak hydrochloric solutions..... More

Extraction Behavior of Hydrogen Ion by an Ionic Liquid Mixture of Aliquat 336 and Cyanex 272 in Chloride Solution
Minh Nhan Le, Seong Ho Son, Man Seung Lee
Korean J. Met. Mater. 2019;57(3):162-169.   Published online 2019 Feb 8
DOI: https://doi.org/10.3365/KJMM.2019.57.3.162

During the extraction of metal ions from a weak acidic chloride solution by ionic liquids consisting of an organophosphorus extractant and Aliquat 336, the equilibrium pH is sometimes observed to be higher than the initial pH. To compare the hydrogen ion extraction behavior of tertiary and quaternary amines, Alamine 336,..... More

                           Cited By 3
Solvent Extraction of Tb(III) from Hydrochloric Acid Solution with Cyanex 272, Its Mixture and Ionic Liquid
염산용액에서 Cyanex 272 및 혼합용매와 이온성 액체에 의한 Tb(III)의 용매추출
Chang Geun Oh, Man Seung Lee
오창근, 이만승
Korean J. Met. Mater. 2018;56(12):870-877.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.870

Cyanex 272 shows the highest separation factor for the rare earth elements from hydrochloric acid solution among the organophosporus acidic extractants, D2EHPA and PC 88A. Solvent extraction of Tb(III) from weak hydrochloric acid solution with an initial pH 3 to 6 was compared with Cyanex 272, its mixture with Alamine..... More

                           Cited By 8
Comparison of the Extraction and Separation Behavior of La, Ce, Pr, Nd, Sm from Light Rare Earth Mixed Solutions by PC88A and Cyanex 572
경희토류 혼합용액에서 PC88A와 Cyanex 572에 의한 La, Ce, Pr, Nd, Sm의 추출·분리 거동 비교
Yeon-Chul Cho, Joo-eun Lee, Hong-Il So, Jae-Woo Ahn, Hong-in Kim, Jin-young Lee
조연철, 이주은, 소홍일, 안재우, 김홍인, 이진영
Korean J. Met. Mater. 2018;56(2):146-154.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.146

Solvent extraction of La, Ce, Pr, Nd and Sm from chloride solutions was studied using PC88A and Cyanex 572 as the extractants. Our results indicated that the acidity of the aqueous solution and saponification degree had some effect on the percentage extraction of metal ions. The distribution coefficient of the..... More

Separation of Rhenium (VII) and Vanadium (V) from Hydrochloric Acid Solutions by Solvent Extraction
Thi Hong Nguyen, Hoai Thanh Truong, Man Seung Lee
Korean J. Met. Mater. 2017;55(10):724-731.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.724

The separation of Re(VII) and V(V) by solvent extraction with TBP was investigated by varying the HCl, metal and chloride ion concentrations. Re(VII) was selectively extracted over V(V) from the HCl solution. The highest separation between Re(VII) and V(V) occurred at a concentration of 2.0 M HCl. The extraction reaction..... More

Solvent Extraction of Tungsten(VI) from Moderate Hydrochloric Acid Solutions with LIX 63
Hoai Thanh Truong, Yong Hwan Kim, Man Seung Lee
Korean J. Met. Mater. 2017;55(6):405-411.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.405

The solvent extraction of tungsten(VI) from hydrochloric acid solutions using 5,8-diethyl- 7-hydroxydodecan-6-one oxime (LIX 63) was analyzed in solutions having an initial pH range from 2 to 5, by varying the concentration of metal and extractant. In our experimental range, the cationic exchange reaction as well as the solvation reaction..... More

         Cited By 2
Separation and Recovery of Precious Metals from Leach Liquors of Spent Electronic Wastes by Solvent Extraction
Thi Hong Nguyen, Lingyun Wang, Man Seung Lee
Korean J. Met. Mater. 2017;55(4):247-255.   Published online 2017 Apr 6
DOI: https://doi.org/10.3365/KJMM.2017.55.4.247

Solvent extraction was employed to recover precious metals (Au (III), Pd (II) and Pt (IV)) from the leach solution of spent electronic wastes containing Cu (II), Cr (III) and Fe (III). First, pure Fe (III) and Au (III) were recovered by simultaneous extraction with Cyanex 923 followed by selective stripping..... More

         Cited By 10
Smelting & Refining
Separation of Rhenium(VII) and Vanadium(V) from concentrated HCl solution by solvent extraction with Alamine 336 and LIX 63
진한 염산용액에서 Alamine 336과 LIX 63의 용매추출에 의한 레늄(VII)과 바나듐(V)의 분리
Ji-Won Baek, Man-Seung Lee
백지원, 이만승
Korean J. Met. Mater. 2017;55(1):31-38.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.31

Solvent extraction experiments were performed with Re(VII) and V(V) from concentrated HCl solutions. In this work, Alamine 336 and LIX 63 were employed as the basic and cationic extractants. At an HCl concentration range from 1 to 5 M, Re(VII) was selectively extracted by Alamine 336, while V(V) was selectively..... More

         Cited By 3
Solvent Extraction of Pr and Nd from Chloride Solution by Mixtures of Acidic Extractants and LIX 63
Yang Liu, Ho Seok Jeon, Man Seung Lee
Korean J. Met. Mater. 2016;54(8):592-597.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.592

Mixtures of acidic extractants and LIX 63 were employed to improve the extraction efficiency of Pr and Nd from chloride solutions. The effect of the composition of the extractant mixtures has been studied. The order of metal extraction by single acidic extractant was D2EHPA > PC88A > Cyanex 272 >..... More

         Cited By 5
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