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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Korean J. Met. Mater.
2024;62(3):204-211. Published online 2024 Feb 28
DOI:
https://doi.org/10.3365/KJMM.2024.62.3.204
Abstract
Bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) is known to selectively extract Au(III) from dilute to concentrated hydrochloric acid solutions. Therefore, Cyanex 272 can be employed in the separation of Au(III) from the hydrochloric acid leaching solutions of secondary resources containing gold metal. This work identified the extraction reaction of Au(III) by Cyanex.....
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SDS 계면활성제 첨가에 따른 14 캐럿 백색 금합금의 티오우레아 스트리핑의 효과
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김익규, 김광배, 송오성
Korean J. Met. Mater.
2020;58(7):447-452. Published online 2020 Jul 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.7.447
Abstract
A stripping solution with thiourea, iron(III) sulfate, and sodium dodecyl sulfate(SDS) was employed to strip Ni-based 14 karat white gold alloys, and the formation of the NiS byproduct and elimination of passivation were investigated in the presence of 0.0-0.2 g/L SDS. White gold alloy samples with a flat shape were.....
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Web of Science 1
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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.....
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Crossref 16
Corrosion & Surface Treatment
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금도금의 전류효율에 미치는 과황산칼륨 첨가의 영향
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손인준, 손호상, 김경태
Korean J. Met. Mater.
2016;54(9):652-658. Published online 2016 Sep 5
DOI:
https://doi.org/10.3365/KJMM.2016.54.9.652
Abstract
In this study, the effect of potassium persulfate on current efficiency for gold plating was investigated using electrochemical techniques. The current efficiency in the low-current-density range greatly decreased when potassium persulfate was added to the gold plating solution. However, the current efficiency in the high-current-density range did not change with.....
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