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Korean J. Met. Mater.
2022;60(10):751-759. Published online 2022 Sep 29
DOI:
https://doi.org/10.3365/KJMM.2022.60.10.751
Abstract
The smelting reduction of spent LIBs produces metallic alloys containing Co, Cu, Fe, Mn, and Ni. These metallic alloys can be completely dissolved by 2 M HCl solution containing H
2
O
2
as an oxidizing agent. Extraction of the leaching solution with D2EHPA results in a Fe(III) free raffinate. In this work,.....
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Web of Science 5
Crossref 3
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도금폐액에 함유된 팔라듐의 아연치환물 염산침출액에서 상용화추출제를 이용한 용매추출로 팔라듐(II)과 아연(II)의 분리
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송시정, Viet Nhan Hoa Nguyen, 이만승
Korean J. Met. Mater.
2022;60(3):188-197. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.188
Abstract
The demand for palladium (Pd) has increased and this has made it necessary to recover pure Pd from diverse secondary resources. To recover the small amount of Pd(II) present in spent electroplating solutions, Pd(II) is concentrated by cementation with zinc metal. In this work, a hydrometallurgical process consisting of leaching.....
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Web of Science 5
Crossref 5
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황산용액에서 상용화 추출제에 의한 팔라듐(II)과 아연(II)의 분리
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송시정, Viet Nhan Hoa Nguyen, 이만승
Korean J. Met. Mater.
2022;60(2):132-140. Published online 2022 Jan 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.2.132
Abstract
Spent electroplating solutions contain a small amount of Pd(II). This Pd(II) can be concentrated by cementation with zinc metal powder. In order to recover pure palladium, a hydrometallurgical process consisting of leaching followed by solvent extraction was developed in this work. First, suitable extractants for the selective extraction of Pd(II).....
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Web of Science 2
Crossref 2
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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
Abstract
Ionic liquids have emerged in hydrometallurgy as potential extractants for metals. In this work, the interactions of ALiCY (R
4
N
+
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.....
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Web of Science 7
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Cyanex 272와 Aliquat 336으로 제조한 이온성액체로 염산용액에서 추출과 세정에 의한 터븀(III) 및 디스프로슘(III)의 분리
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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
Abstract
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.....
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Web of Science 1
Crossref 1
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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
Abstract
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,.....
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Web of Science 25
Crossref 23
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염산용액에서 Cyanex 272 및 혼합용매와 이온성 액체에 의한 Tb(III)의 용매추출
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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
Abstract
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
Crossref 10
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경희토류 혼합용액에서 PC88A와 Cyanex 572에 의한 La, Ce, Pr, Nd, Sm의 추출·분리 거동 비교
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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
Abstract
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.....
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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
Abstract
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
Crossref 1
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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
Abstract
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
Crossref 5
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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
Abstract
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
Crossref 16
Smelting & Refining
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진한 염산용액에서 Alamine 336과 LIX 63의 용매추출에 의한 레늄(VII)과 바나듐(V)의 분리
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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
Abstract
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
Crossref 4
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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
Abstract
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 >.....
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