Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste
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...
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Sciendo
2015-06-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0101/amm-2015-0101.xml?format=INT |
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doaj-art-de0906add75e4076ae5d7aa51ddaf9e02018-09-02T21:24:39ZengSciendoArchives of Metallurgy and Materials2300-19092015-06-016021217122010.1515/amm-2015-0101amm-2015-0101Study On The Electro-Refining Of Tin In Acid Solution From Electronic WasteSon Seong Ho0Park Sung Cheol1Kim Jin Hwa2Kim Yong Hwan3Lee Man Seung4Ahn Jae-Woo5 SURFACE TECHNOLOGY R SURFACE TECHNOLOGY R SURFACE TECHNOLOGY R ADVANCED PROCESS AND MATERIALS R DEPARTMENT OF ADVANCED MATERIAL SCIENCE AND ENGINEERING, MOKPO NATIONAL UNIVERSITY, MOKPO-SI, KOREA DEPARTMENT OF ADVANCED MATERIAL SCIENCE ENGINEERING, DAEJIN UNIVERSITY, POCHEON-SI, KOREAThe 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.%.http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0101/amm-2015-0101.xml?format=INTElectro-refiningTinElectronic wasteRecyclingHigh purity |
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| language |
English |
| format |
Article |
| author |
Son Seong Ho Park Sung Cheol Kim Jin Hwa Kim Yong Hwan Lee Man Seung Ahn Jae-Woo |
| spellingShingle |
Son Seong Ho Park Sung Cheol Kim Jin Hwa Kim Yong Hwan Lee Man Seung Ahn Jae-Woo Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste Archives of Metallurgy and Materials Electro-refining Tin Electronic waste Recycling High purity |
| author_facet |
Son Seong Ho Park Sung Cheol Kim Jin Hwa Kim Yong Hwan Lee Man Seung Ahn Jae-Woo |
| author_sort |
Son Seong Ho |
| title |
Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste |
| title_short |
Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste |
| title_full |
Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste |
| title_fullStr |
Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste |
| title_full_unstemmed |
Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste |
| title_sort |
study on the electro-refining of tin in acid solution from electronic waste |
| publisher |
Sciendo |
| series |
Archives of Metallurgy and Materials |
| issn |
2300-1909 |
| publishDate |
2015-06-01 |
| description |
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.%. |
| topic |
Electro-refining Tin Electronic waste Recycling High purity |
| url |
http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0101/amm-2015-0101.xml?format=INT |
| _version_ |
1612624773250023424 |