Acidic leaching of copper and tin from used consumer equipment

  • Dusan Orac Technical University of Kosice, Faculty of Metallurgy, Department of Non-Ferrous Metals and Waste Treatment
  • Tomas Havlik Technical University of Kosice, Faculty of Metallurgy, Department of Non-Ferrous Metals and Waste Treatment
  • Anja Maul RWTH Aachen University, Department of Processing and Recycling, Aachen, Germany
  • Mattias Berwanger RWTH Aachen University, Department of Processing and Recycling, Aachen, Germany

Abstract


This work is focused on studying thermal pretreatment and leaching of copper and tin from printed circuit boards (PCBs) from used consumer equipment. Thermal treatment experiments were realized with and without presence of oxygen at 300 °C, 500 °C, 700 °C and 900 °C for 30 minutes. Leaching experiments were performed at 80 °C in 2M HCl in two stages. The first stage consisted of classic leaching experiments of samples without and after thermal treatment. The second stage consisted of oxidative leaching experiments (blowing of air or oxygen) with the aim to intensify metals leaching. The results of thermal treatment experiments show that maximal mass loss after burning (combustion) was 53 % (700 °C) and after pyrolysis 47 % (900 %). Oxidative leaching resulted in complete dissolution of copper and tin after 60. or 90 minutes of thermally treated samples. Pyrolysis and combustion have positive effects on metals dissolution in comparison with samples without thermal pretreatment. Moreover, the dissolution of metals is more effective and needs shorter leaching time.

References

N. I. Onwughara, I. C.Nnorom, O. C. Kanno, R. C Chukwuma, Int J Environ Sci Dev, 1 (4) (2010) 290–297.

Eurostat, available on website <http://epp.eurostat.ec.europa.eu/portal/page/portal/waste/key_ waste_streams/waste_electrical_electronic_equipment_weee>.

D. Orac, T. Havlik, F. Kukurugya, A. Miskufova, A., Takacova, Metall, 5 (2011) 211–217.

E-y. Kim, M-s. Kim, J-ch. Lee, J. Jeong, B. D. Pandey, Hydrometallurgy, 107 (2011) 124–132.

V. H. Ha, J. Lee, J. Jeong, H. T. Hai, M. K. Jha, J Hazard Mater, 178 (2010) 1115–1119.

T. Havlik, D. Orac, M. Petranikova, A. Miskufova, F. Kukurugya, Z. Takacova, J Hazard Mater, 183 (2010) 866–873.

J. Y. Li, L. Huang, 4th International Conference, Bioinformatics and Biomedical Engineering (ICBBE), June 18-20, Chengdu, China, 2010, p. 1–4.

Y. J. Park, D. J. Fray, J Hazard Mater, 164 (2009) 1152–1158.

F. Xie, H. Lia, Y. Ma, Ch. Li, T. Cai, Z. Huang, G. Yuan, J Hazard Mater, 170 (2009) 430–435.

L. A. Castro, A. H. Martins, Braz J Chem Eng, 2009, 26(4): 649–657.

Z. Ping, F. ZeYun, L. Jie, L. Qiang, Q. GuangRen, Z. Ming, J Hazard Mater, 166 (2009) 746–750.

T. Oishi, K. Koyama, W. Alam, M. Tahala, J.-C. Lee, Hydrometallurgy, 89 (2007) 82–88.

P. P. Sheng, T. H. Etsell, Waste Manage Res, 25 (2007) 380–383.

H. Madenoglu, H. Ege University, Graduate School of Natural and Applied Sciences, Department of Chemical Engineering, Master Thesis, 2005.

P. Quinet, J. Proost, A. Van Lierde, Miner Metall Proc, 22 (2005) 17–22.

Ch. J. Oh, S. O. Lee, H. S. Yang, T. J. Ha, M. J. Kim, J Air Waste Manag Assoc, 53 (2003) 897–902.

A. Mecucci, K. Scott, J Chem Technol Biot, 77 (2002) 449–457.

F.-R. Xiu, F.- S. Zhang, J Hazard Mater, 233-234 (2012) 200–206.

F.-R. Xiu, Y. Qi, F.-S. Zhang, Waste Manage, 33 (2013) 1251–1257.

M. K. Jha, P. K. Choubey, A. K. Jha, A. Kumari, J.-ch. Lee, Waste Manage, 32 (2012) 1919–1925.

J.-g. Yang, Y.-t Wu, J. Li, Hydrometallurgy, 121-124 (2012) 1–6.

A. Tuncuk, V. Stazi, A. Akcil, E. Y. Yazici, H. Deveci, Miner Eng, 25 (2012) 28–37.

J. Cui, E. Forssberg, Waste Manage, 27 (2007) 415–424.

J. Cui, L. Zhang, J Hazard Mater, 158 (2008) 228–256.

T. Havlik, Hydrometallurgy – Principles and applications, Woodhead Publ. Ltd., Cambridge, ISBN 978-1-84569-407-4, 2008, p. 536.

HSC chemistry®, ver. 6.0 – software Outotec Research Oy.

Published
2015/12/18
How to Cite
Orac, D., Havlik, T., Maul, A., & Berwanger, M. (2015). Acidic leaching of copper and tin from used consumer equipment. Journal of Mining and Metallurgy, Section B: Metallurgy, 51(2), 153-161. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/7249
Issue
Vol. 51 No. 2 (2015)
Section
Original Scientific Paper

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