Abstract
Printed circuit boards (PCBs) comprise various metals such as Cu, Sn, and Pb, as well as platinum group metals. The recovery of metals from PCBs is important not only due to the waste treatment but also for recycling of valuable metals. In the present work, the leaching process of Cu, Sn, and Pb from PCBs was studied using fluoroboric acid and hydrogen peroxide as the leaching agent and oxidant, respectively. Pertinent factors including concentration of acid, temperature, liquid-solid ratio, and concentration of oxidizing agent were evaluated. The results showed 99 pct of copper and 90 pct solder alloy were dissolved at a temperature of 298 K (25 °C) for 180 minutes using 0.6 M HBF4 for the particle size range of 0.15 to 0.4 mm. Moreover, solid/liquid ratio had insignificant effect on the recovery of metals. Kinetics analysis revealed that the chemical control regime governs the process with activation energy 41.25 and 38.9 kJ/mol for copper and lead leaching reactions, respectively.
Similar content being viewed by others
References
Zhan, L., Xu, Z., Environmental Science & Technology, 2008. Vol. 42, pp. 7676-7681.
Kim, E. Y., Kim, M. S., Lee, J. C., Jeong, J., Pandey, B. D., Hydrometallurgy, 2011, Vol. 107, pp. 124-132.
Andrews, D., Raychaudhuri, A., Frias, C. J Power Sources, 2000, Vol. 88, pp. 124-129.
C.E.M. Meskers, C. Hagelüken, S. Salhofer, and M. Spitzbart: in Proceedings of EMC, 2009.
Khaliq, A., Rhamdhani, M.A., Brooks, G. and Masood, S., Resources, 2014, 3(1), pp. 152-79.
Birloaga, I., Coman, V., Kopacek, B., Vegliò, F., Waste Manage, 2014, Vol. 34, pp. 2581-2586.
Yazici, E. Y., & Deveci, H. Hydrometallurgy, 2013, Vol. 139, pp. 30-38.
Cui, J., Zhang, L., J Hazard Mater, 2008. Vol. 158, pp. 228-256.
Sheng, P. P., & Etsell, T. H. Waste Manage Res, 2007. Vol. 25, pp. 380-383.
Kamberovic, Z. J., Association of Metallurgical Engineers of Serbia, 2009, Vol. 15, pp. 231-243.
Tuncuk, A., Stazi, V., Akcil, A., Yazici, E. Y., & Deveci, H. Minerals Engineering, 2012. Vol. 25, pp. 28-37.
Yang, H., Liu, J., & Yang, J., Journal of Hazardous Materials, 2011. Vol. 187, pp. 393-400.
Barakat, M. A., Hydrometallurgy. 1998., Vol. 49, pp. 63-73.
Jha, M. K., Choubey, P. K., Jha, A. K., Kumari, A., Lee, J. C., Kumar, V., & Jeong, J., Waste Manage, 2012, Vol. 32, pp. 1919-1925.
Svehla, G., Vogel’s Qualitative Inorganic Analysis, 7th ed., Pearson Education India, New Delhi, 2008.
N. Dhawan, M. Kumar, V. Kumar, and M. Wadhwa: in Proceedings of the Global Symposium on Recycling, Waste Treatment and Clean Technology (REWAS), Cancun, Mexico, 2008, pp. 12–15.
Jha, M. K., Kumari, A., Choubey, P. K., Lee, J. C., Kumar, V., & Jeong, J., Hydrometallurgy, 2012, Vol. 121, pp. 28-34.
Masavetas, I., Moutsatsou, A., Nikolaou, E., Spanou, S., Zoikis-Karathanasis, A., Pavlatou, E. A., & Spyrellis, N. Global NEST Journal, 2009, Vol. 11, pp. 241-247.
Park, Y. J., Fray, D. J., Journal of Hazardous Materials, 2009, Vol. 164, pp. 1152-1158.
Gibson, R. W., Fray, D. J., Sunderland, J. G., Dalrymple, I. M., Electrochem. Soc. Proc., 2003. Vol. 18, pp. 346-354.
A.C. Tan: Tin and Solder Plating in the Semiconductor Industry. Springer Science & Business Media, 1992.
J.-P. Croue, G.-V. Korshin, and M. Benjamin: Characterization of Natural Organic Matter in Drinking Water. AWWA Research Foundation and American Water Works Association, 1999.
Zhang, X., Guan, J., Guo, Y., Yan, X., Yuan, H., Xu, J., Guo, Z. ACS Sustainable Chemistry & Engineering, 2015. Vol. 3, pp. 1696-1700.
Levenspiel, O., Industrial & Engineering Chemistry Research, 1999. Vol. 38, pp.4140-4143.
Acknowledgment
The authors would like to thank Mr. Y. Nosratzad for his help in performing some of the experiments.
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted June, 2, 2016.
Rights and permissions
About this article
Cite this article
Kavousi, M., Sattari, A., Alamdari, E.K. et al. Leaching Studies for Copper and Solder Alloy Recovery from Shredded Particles of Waste Printed Circuit Boards. Metall Mater Trans B 49, 1464–1470 (2018). https://doi.org/10.1007/s11663-018-1243-6
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11663-018-1243-6