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RECOVERY OF GOLD AND SILVER FROM PRINTED CIRCUIT BOARDS (PCBS)
Abstract
Recovery of gold and other valuable metals from electronic scrap involves a complex metallurgical flow sheet and requires state- of-the-art recovery technologies that are available in large-scal e, integrated smelter-refinery opera tions. At the end of their use, electronic and other el ectrical product scrap offer an important recycling potential for the secondary supply of gold and silver into the market. With gold concentrations reaching 200-250 g/t for computer circuit boards, this scrap is an вЂurban mine’ that is significantly richer in gold than the sources of the primary ores today. The paper gives methods of gold and silver recovery from printed circular board. The methods of purification are given and they separate gold from the impurities (tin, copper and nickel). The obtained gold and silver have 99,99% quality.
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B. R. Babu, A. K. Parande, Electrical an d electronic waste: global environmental problem, http://wmr.sagepub.com
S. Herat, Internationa l regulations and treaties on electronic waste (e-waste), International Journal of Environmental Engineering, 1 (4), 2009, 335 - 351
Recast of the WEEE and RoHS Directives proposed in 2008, http://ec.europa.eu/environment/waste/weee/index _en.htm
C. W. Corty, Sustainable Recycling of Electronic Scrap,
http://www.cfsd.org.uk/seeba/TD/reports/PCBStudy.pdf.
S. Zhang, E. Forssberg, Mechanical separation-oriented characterization of elec- tronic scrap, Resour. Conserv. Recycl. 21 (1997) 247-269
S.Zhang, E. Forssberg, B. Arvidson, W. Moss, Aluminum recovery from electronic scrap by high-force eddy-current separators, Resour. Conserv. Recycl. 23 (1998) 225-
W.J. Hall, P.T. Williams, Separation and recovery of materials from scrap printed circuit boards, Resour. Conserv. Recycl. 51 (2007) 691-709
K. Gloe, P. Mühl, M. Knothe, Recovery of precious metals from electronic scrap, inparticular from waste products of the thick-layer technique, Hydrometallurgy 25(1990)99-110
T. Oishi, K. Koyama, H. Konishi, M. Tanaka, J.C. Lee, Influence of ammonium salt on electrowinning of copper from ammoniacal alkaline solutions, Electrochim. Acta 53 (2006) 127-132.
D. Pilone, G.H. Kelsall, Prediction and measurement of multi-metal electrode- position rates and efficiencies in aqueous aci dic chloride media, Electrochim. Acta 51 (2006) 3802-3808
Y.J. Park, D. J. Fray, Recovery of hi gh purity precious metals from printed circuit boards, Journal of Hazardous Materials, 164, (2009.), 1152-1158
Kirk-Othmer Encyclopedia of Chemical Technology, 4th ed., John Wiley & Sons, New York, 1998.
M. Goosey, R. Kellner, A Scoping study end-of-life printed circuit boards, Intellect and the Department of Trade and Industry, Makati City, 2002
Ž. Kamberovi ć , M. Kora ć, D. Ivši ć, V. Nikoli ć, M.Ranitović, Hydrometallurgical process for extraction of metals from electr onic waste-part I: material characteization and process option selection, MJoM Vol 15 (4) 2009 p. 231 -243
S. Dragulovi ć, S.Dimitrijević, B. Pešovski, Review of price for refnment gold contact scrap of electronic computers, 13 th International Research TMT 2009., Hammamet, Tunisia ISBN 1840-4944, UDK 621:001.892)(063)(082),www.tmt2009.ba
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