Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste

• Autorzy: Son S. H. , Park S. C. , Kim J. H. , Kim Y. H. , Lee M. S. , Ahn J.-W.

Identyfikatory

DOI

10.1515/amm-2015-0101

Warianty tytułu

PL

Badanie elektrorafinacji cyny w roztworze kwasu z e-odpadów

• Języki publikacji: EN

Abstrakty

EN

The tin metal could be retractable from wasted tin scrap, sludge, and wasted electroplated solution hydrometallurgical treatment, and purification process. In order to be used as resource of electronic devices, the retracted crude metal should be purified to the extent of higher than 99.9%. In this study, tin electro-refining process was performed to purify the casted tin crude metal at various experimental conditions: at the current density of 3, 5A/dm², and in various electrolytes such as hydrochloric acid, sulfuric acid and methansulfonic acid. Additional experiment was conducted using Rotating Disk Electrode (RDE) in order to investigate the rate determining step of tin electro-refining process. The current efficiency, 65.6%, was achievable at the condition of current density, 5A/dm², and in the electrolyte of Hydrochloric acid. During tin electro-refining process, impurity dissolved from tin crude metal into the electrolyte was analyzed using Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES), and the result showed the concentration of impurity metal gradually increased. Quantitative analysis on casted tin crude metal showed that it consists of tin with 93.9 wt.% and several impurity metals of Ag, Bi, Pb, Cu, and etc. After tin electro-refining process, the purity of tin increased up to 99.985 wt.%.

Słowa kluczowe

EN

electrorefining; tin; electronic waste; recycling; high purity

PL

elektrorafinacja; cyna; odpady elektroniczne; recykling

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1217--1220
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Son S. H.

• Surface Technology R&Bd Group, Korea Institute of Industrial Technology, Incheon, Korea

autor

Park S. C.

• Surface Technology R&Bd Group, Korea Institute of Industrial Technology, Incheon, Korea

autor

Kim J. H.

• Surface Technology R&Bd Group, Korea Institute of Industrial Technology, Incheon, Korea

autor

Kim Y. H.

• Advanced Process and Materials R&Bd Group, Korea Institute of Industrial Technology, Incheon, Korea

autor

Lee M. S.

• Department of Advanced Material Science And Engineering, Mokpo National University, Mokpo-Si, Korea

autor

Ahn J.-W.

• Department of Advanced Material Science Engineering, Daejin University, Pocheon-Si, Korea

Bibliografia

• [1] J. Cui, L. Zhang, J. Hazard. Mater. 158, 228 (2008).
• [2] P. Kaewboonthong, K. Kooptarnond, P. Bunnaul, T. Plookphol, The 5th PSU-UNS International Conference on Engineering and Technology (2011).
• [3] M. A. Abbas, Eng. &Tech. Journal, 30, 3603 (2012).
• [4] J. Willner, A. Fornalczyk, J. Cebulski, K. Janiszewski, Arch. Metall. Mater. 59, 801 (2014).
• [5] A. E. Saba, S. E. Afifi, A. E. El Sherief, Journal of Metal 40, 40 (1988).
• [6] G. Rimaszeki, T. Kulcsar, T. Kekesi, J Appl. Electrochem. 42, 573 (2012).
• [7] G. S. Tzeng, S. H. Lin, Y. Y. Wang, C. C. Wan, J. Appl. Electrochem. 26, 419 (1996).
• [8] P. Ozga, Arch. Metall. Mater. 51, 413 (2006).
• [9] W. M. Haynes, Handbook of Chemistry and Physics: 93rd Edition. Chemical Rubber Company (2012).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.