廢銅슬래그를 活用한 廢電氣電子 스크랩으로부터 有價金屬 高溫鎔融抽出 工程 開發
A Novel Process for Extracting Valuable Metals from Waste Electric and Electronic Scrap Using Waste Copper Slag by a High Temperature Melting Method
2
조회
0
다운로드
13
인용
0
참고문헌
키워드
초록
구리, 주석 등의 유가금속을 다량 함유하고 있는 폐전기전자 스크랩으로부터 유가금속을 회수하는 것은 자원 재활용 측면에서 매우 중요하다. 본 연구에서는 폐동슬래그를 슬래그 형성제로 활용하여 폐전기전자 스크랩으로부터 유가금속을 추출하기 위한 새로운 공정이 제시되었다. 제안된 공정은 슬래그 형성제로 동 제련소에서 배출되는 폐동슬래그를 재활용한다는 장점이 있다. 각 실험에서는 일정한 비율로 혼합된 폐전기전자 스크랩과 폐동슬래그의 혼합시료를 보조 슬래그 형성제인 CaO와 함께 고온 용융되었다. 실험 결과 폐전기전자 스크랩에 함유된 구리와 주석이 Cu-Fe-Sn 합금상으로 각각 95% 이상, 85% 이상 추출되었다.
Abstract
It is very important in the view point of resource recycling to recover valuable metals such as copper and tin from waste electric and electronic scrap. The waste electric and electronic scrap contains significant amounts of copper, tin, and so on. In this study, a new process for extracting copper and tin contained in the waste electric and electronic scrap using waste copper slag which is generated from the melting furnace of copper smelter was presented. Advantage of the proposed process is to reuse waste copper slag instead of new fluxes as slag formatives. In each experiment, the waste electric and electronic scrap and waste copper slag were melted inputting suitable amount of CaO as an additional flux. Up to 95 % of copper and 85 % of tin in the raw material were extracted in a Cu-Fe-Sn alloy phase.
참고문헌 (13)
- "the hidden side of IT equipment manufacture and use" (2004)
- Jae-chun Lee, "Technology for Recovering Valuable Metals from Printed Circuit Boards (PCBs) of the Used Personal Computer", 7(3), pp.58~66 (1998)
- Elaine. Y. L. Sun, "The Recovery of Metals from Electric Scrap", pp.53~61 (1991)
- J. E. Hoffmann, "Recovering Precious Metals from Electric Scrap", pp.43~48 (1992)
- "Private communication Korea-Zinc Incorporation" (2005)
- R. G. Reddy, "Recovery of Precious Metals by Pyrometallurgical Processing of Electronic Scrap Proceedings of 10th IPMI Conference", pp.135~145 (1987)
- A. Bernardes, "Recycling of Printed Circuit Boards by Melting with Oxidising", Reducing Top Blowing Process, 1997, 363~
- B. C. Ban, "Recovery of Precious Metals from Waste PCB and Auto Catalyst Using Arc Furnace", 11(6), pp.3~11 (2002)
- Byung-Su Kim, "Recovery of Precious Metals from Obsolete Printed Circuit Boards by Smelting Reduction", 40(3), pp.184~190 (2003)
- Byung-Su Kim, "A Process for Extracting Precious Metals from Spent Printed Circuit Boards and Automobile Catalysts", 56(12), pp.55~58 (2004)
- Kemori N, "Measurements of Oxygen Pressure in a Copper Flash Smelting Furnace by an Emf Method", pp.111~117 (1986)
- George R. St. Pierre, "Physical Chemistry of Process Metallurgy", pp.175~ (1961)
- George R. St. Pierre, "Physical Chemistry of Process Metallurgy", pp.175~ (1961)