Recovery of Metals from Electronic Waste by Reduction Melting Method
This study investigates application of the reduction melting method to recover metals from electronic wastes. The study began with determination of the optimal conditions for metal recovery from cathode ray tube (CRT) glass by melting under various conditions. The recovery of metallic lead and lead...
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| Format: | Article |
| Language: | English |
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Environmental Research Institute, Chulalongkorn University
2015-02-01
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| Series: | Applied Environmental Research |
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| Online Access: | https://ph01.tci-thaijo.org/index.php/saujournalst/www.tci-thaijo.org/index.php/aer/article/view/30890 |
| _version_ | 1818064970761371648 |
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| author | Pornpaitoon Laosombatthawee Dawan Wiwattanadate Sujarinee Kotchawattana |
| author_facet | Pornpaitoon Laosombatthawee Dawan Wiwattanadate Sujarinee Kotchawattana |
| author_sort | Pornpaitoon Laosombatthawee |
| collection | DOAJ |
| description |
This study investigates application of the reduction melting method to recover metals from electronic wastes. The study began with determination of the optimal conditions for metal recovery from cathode ray tube (CRT) glass by melting under various conditions. The recovery of metallic lead and lead oxide (PbO) remaining in the glass residues for each set of melting condition were compared. It was found that the optimal condition for metallic Pb recovery from the CRT glass was melting the glass at 1200 oC for 1 h and then soaking at precipitation temperature of 500 oC for 1-2 h. Under these conditions, recovery rates of metallic lead from CRT glass reached up to 85-89 %. The optimal conditions identified in this preliminary study were then used to recover metals from a mixture of CRT glass and printed circuit boards (PCBs), as a proxy for electronic waste. Electron Probe Micro Analysis (EPMA) characterization indicated two categories of metal deposits; the first being metallic lead (Pb) and the second as a mixture of copper (Cu), tin (Sn), and antimony (Sb). The study also confirmed that incorporation of PCB did not affect lead recovery from CRT glass.
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| first_indexed | 2024-12-10T14:44:28Z |
| format | Article |
| id | doaj.art-5dcf1db6a4c142798e6a3f7f0aaeb883 |
| institution | Directory Open Access Journal |
| issn | 2287-0741 2287-075X |
| language | English |
| last_indexed | 2024-12-10T14:44:28Z |
| publishDate | 2015-02-01 |
| publisher | Environmental Research Institute, Chulalongkorn University |
| record_format | Article |
| series | Applied Environmental Research |
| spelling | doaj.art-5dcf1db6a4c142798e6a3f7f0aaeb8832022-12-22T01:44:35ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-07412287-075X2015-02-01371Recovery of Metals from Electronic Waste by Reduction Melting MethodPornpaitoon Laosombatthawee0Dawan Wiwattanadate1Sujarinee Kotchawattana2Faculty of Engineering, Chulalongkorn University, Bangkok, ThailandFaculty of Engineering, Chulalongkorn University, Bangkok, ThailandFaculty of Science, Chulalongkorn University, Bangkok, Thailand This study investigates application of the reduction melting method to recover metals from electronic wastes. The study began with determination of the optimal conditions for metal recovery from cathode ray tube (CRT) glass by melting under various conditions. The recovery of metallic lead and lead oxide (PbO) remaining in the glass residues for each set of melting condition were compared. It was found that the optimal condition for metallic Pb recovery from the CRT glass was melting the glass at 1200 oC for 1 h and then soaking at precipitation temperature of 500 oC for 1-2 h. Under these conditions, recovery rates of metallic lead from CRT glass reached up to 85-89 %. The optimal conditions identified in this preliminary study were then used to recover metals from a mixture of CRT glass and printed circuit boards (PCBs), as a proxy for electronic waste. Electron Probe Micro Analysis (EPMA) characterization indicated two categories of metal deposits; the first being metallic lead (Pb) and the second as a mixture of copper (Cu), tin (Sn), and antimony (Sb). The study also confirmed that incorporation of PCB did not affect lead recovery from CRT glass. https://ph01.tci-thaijo.org/index.php/saujournalst/www.tci-thaijo.org/index.php/aer/article/view/30890E-waste recyclingReduction melting methodMetal recovery from e-wastes |
| spellingShingle | Pornpaitoon Laosombatthawee Dawan Wiwattanadate Sujarinee Kotchawattana Recovery of Metals from Electronic Waste by Reduction Melting Method Applied Environmental Research E-waste recycling Reduction melting method Metal recovery from e-wastes |
| title | Recovery of Metals from Electronic Waste by Reduction Melting Method |
| title_full | Recovery of Metals from Electronic Waste by Reduction Melting Method |
| title_fullStr | Recovery of Metals from Electronic Waste by Reduction Melting Method |
| title_full_unstemmed | Recovery of Metals from Electronic Waste by Reduction Melting Method |
| title_short | Recovery of Metals from Electronic Waste by Reduction Melting Method |
| title_sort | recovery of metals from electronic waste by reduction melting method |
| topic | E-waste recycling Reduction melting method Metal recovery from e-wastes |
| url | https://ph01.tci-thaijo.org/index.php/saujournalst/www.tci-thaijo.org/index.php/aer/article/view/30890 |
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