An advanced study on the hydrometallurgical processing of waste computer printed circuit boards to extract their valuable content of metals

Birloaga, Ionela; Coman, Virginia; Kopacek, Peter; Vegliò, Francesco

doi:10.1016/j.wasman.2014.08.028

Cited by 155 publications

(59 citation statements)

References 19 publications

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“…The presented results are in line with the ones described by the experts within the scientific literature [25,35,37,45]. However, it is important to point out that a direct comparison with the results coming from the literature is not possible due to two reasons.…”

supporting

confidence: 87%

“…However, the same economic principles can be used to also assess other refining methods, without twisting the overall value of the work. Hydrometallurgy is the optimal choice to implement field and mobile plants, given both its high sustainability level in comparison to other metal refining methods and the flexibility level of related plants [35][36][37].…”

Section: Wpcb Recycling Processmentioning

confidence: 99%

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Challenges in Waste Electrical and Electronic Equipment Management: A Profitability Assessment in Three European Countries

2016

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Waste electrical and electronic equipment (WEEE) is known as an important source of secondary raw materials. Since decades, its treatment allowed to recover great amounts of basic resources. However, the management of electronic components embedded in WEEE still presents many challenges. The purpose of the paper is to cope with some of these challenges through the definition of an economic model able to identify the presence of profitability within the recovery process of waste printed circuit boards (WPCBs). To this aim, a set of common economic indexes is used within the paper. Furthermore, a sensitivity analysis on a set of critical variables is conducted to evaluate their impact on the results. Finally, the combination of predicted WEEE volumes (collected during the 2015-2030 period) in three European countries (Germany, Italy and the United Kingdom) and related economic indexes quantify the potential advantage coming from the recovery of this kind of waste in the next future.

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supporting

confidence: 87%

Section: Wpcb Recycling Processmentioning

confidence: 99%

Challenges in Waste Electrical and Electronic Equipment Management: A Profitability Assessment in Three European Countries

2016

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“…Along with the development of legislation and recycling systems, many researchers have focused on WEEE recovery for resource conservation and environmental protection, developing recycling technologies, such as pyrolysis (Chen et al, 2014;Lin and Chiang, 2014), biometallurgy (Bas et al, 2013;Lee and Pandey, 2012), mechanical-physical technology (Cui and Forssberg, 2003;Li et al, 2014), hydrometallurgy (Birloaga et al, 2014) and pyrometallurgy (van Heukelem et al, 2004).…”

Section: Weee Recycling Technologiesmentioning

confidence: 99%

Challenges in legislation, recycling system and technical system of waste electrical and electronic equipment in China

et al. 2015

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“…The proposed technologies include mainly pyrometallurgy (Cayumil et al, 2014;Flandinet et al, 2012), hydrometallurgy (Fogarasi et al, 2015;Tuncuk et al, 2012;Birloaga et al, 2014), bio-technology (Rodrigues et al, 2015;Pant et al, 2012;Zhu et al, 2011), and mechanical methods (Chao et al, 2011;Duan et al, 2009). Among these technologies, hydrometallurgical processes with relatively low capital costs, no gas/dust formation, operational selectivity and suitability for small scale applications are propitious alternatives for the treatment of waste PCBs (Birloaga et al, 2013;Xiu et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

A novel recovery method of copper from waste printed circuit boards by supercritical methanol process: Preparation of ultrafine copper materials

Xiu

Weng

et al. 2017

Waste Management

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a b s t r a c tIn this study, supercritical methanol (SCM) process was successfully used for the preparation of ultrafine copper materials from waste printed circuit boards (PCBs) after nitric acid pretreatment. Waste PCBs were pretreated twice in nitric acid. Sn and Pb were recovered by the first nitric acid pretreatment. The leach liquor with a high concentration of copper ions after the second nitric acid leaching was subjected to SCM process. The mixture of Cu and Cu 2 O with poor uniformity of particle size was formed due to the effect of ferric iron contained in the leach liquor of waste PCBs, while more uniform and spherical Cu particles with high monodispersity and smaller size could be prepared after the removal of Fe. The size of Cu particles increased obviously with the decline of SCM temperature, and particles became highly aggregated when the reaction temperature decreased to 300°C. The size of Cu particles decreased markedly with the decrease of initial concentration of copper ion in the leach liquor of waste PCBs. It is believed that the process developed in this study is simple and practical for the preparation of ultrafine copper materials from waste PCBs with the aim of recycling these waste resources as a high value-added product.

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An advanced study on the hydrometallurgical processing of waste computer printed circuit boards to extract their valuable content of metals

Cited by 155 publications

References 19 publications

Challenges in Waste Electrical and Electronic Equipment Management: A Profitability Assessment in Three European Countries

Challenges in Waste Electrical and Electronic Equipment Management: A Profitability Assessment in Three European Countries

Challenges in legislation, recycling system and technical system of waste electrical and electronic equipment in China

A novel recovery method of copper from waste printed circuit boards by supercritical methanol process: Preparation of ultrafine copper materials

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