Browse > Article

A Novel Process for Extracting Valuable Metals from Waste Electric and Electronic Scrap Using Waste Copper Slag by a High temperature Melting Method  

Kim, Byung-Su (Minerals & Materials Processing Division, Korea Institute of Geoscience & Mineral Resources(KIGAM))
Lee, Jae-Chun (Minerals & Materials Processing Division, Korea Institute of Geoscience & Mineral Resources(KIGAM))
Lee, Kwang-Ho (Production & Technology Team, LS-Nikko Copper Inc.)
Publication Information
Resources Recycling / v.16, no.3, 2007 , pp. 27-33 More about this Journal
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.
Keywords
Waste electric and electronic scrap; Waste copper slag; Copper; Tin; Recycling;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 R. G. Reddy, and R. K. Mishra, 1987: Recover${\gamma}$ of Precious Metals by PyrometaUurgical Processing of Electronic Scrap, Precious Metals 1987, Proceedings of 10th IPMI Conference', Brussels, Belgium, pp.135-145
2 Verein Deutscher Eisenhttenleute(Ed.), 1995: Slag Atlas 2nd Edition, p. 370, Verlag Stahleisen GmbH, Dusseldorf, Germany
3 Byung-Su Kim et al. 2004: A Process for Extracting Precious Metals from Spent Printed Circuit Boards and Automobile Catalysts, JOM, 56(12), pp.55-58
4 George R. St. Pierre(Ed), 1961: Physical Chemistry of Process Metallurgy, Part 1, Pittsburgh, PA, pp. 175
5 UNEP report, 2004: E-waste, the hidden side of IT equipment manufacture and use, http://www.grid.unep.ch/product/publication/download/ew_ewaste.en.pdf
6 Private communication LS-Nikko Copper Incorporation, Uljin-gun, Ulsan, Korea, September, 2006
7 Verein Deutscher Eisenhttenleute(Ed.), 1981: Schlackenatlas, p. 68, Verlag Stahleisen m.b.H., Dusseldorf, Germany
8 Kemori N., Shibata Y. and Tomono M., 1986: Measurements of Oxygen Pressure in a Copper Flash Smelting Furnace by an Emf Method, Metall. Trans. B, 17B, pp.111-117
9 A. Bernardes et al., 1997: Recycling of Printed Circuit Boards by Melting with Oxidising/Reducing Top Blowing Process, EPD Congress, Brajendra Mishra(Ed.), TMS, Warrendale, PA, pp.363
10 Private communication Korea-Zinc Incorporation, Uljingun, Ulsan, Korea, August, 2005
11 Byung-Su Kim, Jae-Chun Lee, and Seung-Pil Seo, 2003:Recovery of Precious Metals from Obsolete Printed Circuit Boards by Smelting Reduction, The Korea Society for Geosystem Engineering, 40(3), pp.184-190
12 J. E. Hoffmann, 1992: Recovering Precious Metals from Electric Scrap, JOM, 44(7), pp.43-48
13 B. C. Ban, C. M. Kim, Y. I. Kim, and D. S. Kim, 2002: Recovery of Precious Metals from Waste PCB and Auto Catalyst Using Arc Furnace, J of Korean Inst. of Resources Recycling, 11(6), pp.3-11
14 Jae-chun Lee, Jin-ki Jeong, Jung-il Yang, Hun-Sang Chung, 1998: Technology for Recovering Valuable Metals from Printed Circuit Boards (PCBs) of the Used Personal Computer, J of Korean Inst. of Resources Recycling, 7(3), pp.58-66
15 Elaine. Y. L. Sun, 1991: The Recovery of Metals from Electric Scrap, JOM, 43(4), pp.53-61