Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards

2018
Authors
Kamberović, ŽeljkoRanitović, Milisav

Korać, Marija

Anđić, Zoran

Gajić, Nataša
Đokić, Jovana

Jevtić, Sonja
Article (Published version)
Metadata
Show full item recordAbstract
This paper presents an experimentally-proved hydrometallurgical process for selective metals recovery from the waste-printed circuit boards (WPCBs) using a combination of conventional and time-saving methods: leaching, cementation, precipitation, reduction and electrowinning. According to the results obtained in the laboratory tests, 92.4% Cu, 98.5% Pb, 96.8% Ag and over 99% Au could be selectively leached and recovered using mineral acids: sulfuric, nitric and aqua regia. Problematic tin recovery was addressed with comprehensive theoretical and experimental work, so 55.4% of Sn could be recovered through the novel physical method, which consists of two-step phase separation. Based on the results, an integral hydrometallurgical route for selective base and precious metals recovery though consecutive steps, (i) Cu, (ii) Sn, (iii) Pb and Ag, and (iv) Au, was developed. The route was tested at scaled-up laboratory level, confirming feasibility of the process and efficiencies of metals rec...overy. According to the obtained results, the proposed hydrometallurgical route represents an innovative and promising method for selective metals recovery from WPCBs, particularly applicable in small scale hydrometallurgical environments, focused on medium and high grade WPCBs recycling.
Keywords:
gold / copper / WPCBs / leaching / physical separation / Tin recoverySource:
METALS, 2018, 8, 6Publisher:
- Mdpi, Basel
Funding / projects:
- Innovative synergy of by-products, waste minimization and clean technologies in metallurgy (RS-34033)
DOI: 10.3390/met8060441
ISSN: 2075-4701
WoS: 000436115600069
Scopus: 2-s2.0-85048459748
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Institution/Community
Inovacioni centar / Innovation CentreTY - JOUR AU - Kamberović, Željko AU - Ranitović, Milisav AU - Korać, Marija AU - Anđić, Zoran AU - Gajić, Nataša AU - Đokić, Jovana AU - Jevtić, Sonja PY - 2018 UR - https://cherry.chem.bg.ac.rs/handle/123456789/2164 AB - This paper presents an experimentally-proved hydrometallurgical process for selective metals recovery from the waste-printed circuit boards (WPCBs) using a combination of conventional and time-saving methods: leaching, cementation, precipitation, reduction and electrowinning. According to the results obtained in the laboratory tests, 92.4% Cu, 98.5% Pb, 96.8% Ag and over 99% Au could be selectively leached and recovered using mineral acids: sulfuric, nitric and aqua regia. Problematic tin recovery was addressed with comprehensive theoretical and experimental work, so 55.4% of Sn could be recovered through the novel physical method, which consists of two-step phase separation. Based on the results, an integral hydrometallurgical route for selective base and precious metals recovery though consecutive steps, (i) Cu, (ii) Sn, (iii) Pb and Ag, and (iv) Au, was developed. The route was tested at scaled-up laboratory level, confirming feasibility of the process and efficiencies of metals recovery. According to the obtained results, the proposed hydrometallurgical route represents an innovative and promising method for selective metals recovery from WPCBs, particularly applicable in small scale hydrometallurgical environments, focused on medium and high grade WPCBs recycling. PB - Mdpi, Basel T2 - METALS T1 - Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards VL - 8 IS - 6 DO - 10.3390/met8060441 ER -
@article{ author = "Kamberović, Željko and Ranitović, Milisav and Korać, Marija and Anđić, Zoran and Gajić, Nataša and Đokić, Jovana and Jevtić, Sonja", year = "2018", abstract = "This paper presents an experimentally-proved hydrometallurgical process for selective metals recovery from the waste-printed circuit boards (WPCBs) using a combination of conventional and time-saving methods: leaching, cementation, precipitation, reduction and electrowinning. According to the results obtained in the laboratory tests, 92.4% Cu, 98.5% Pb, 96.8% Ag and over 99% Au could be selectively leached and recovered using mineral acids: sulfuric, nitric and aqua regia. Problematic tin recovery was addressed with comprehensive theoretical and experimental work, so 55.4% of Sn could be recovered through the novel physical method, which consists of two-step phase separation. Based on the results, an integral hydrometallurgical route for selective base and precious metals recovery though consecutive steps, (i) Cu, (ii) Sn, (iii) Pb and Ag, and (iv) Au, was developed. The route was tested at scaled-up laboratory level, confirming feasibility of the process and efficiencies of metals recovery. According to the obtained results, the proposed hydrometallurgical route represents an innovative and promising method for selective metals recovery from WPCBs, particularly applicable in small scale hydrometallurgical environments, focused on medium and high grade WPCBs recycling.", publisher = "Mdpi, Basel", journal = "METALS", title = "Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards", volume = "8", number = "6", doi = "10.3390/met8060441" }
Kamberović, Ž., Ranitović, M., Korać, M., Anđić, Z., Gajić, N., Đokić, J.,& Jevtić, S.. (2018). Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards. in METALS Mdpi, Basel., 8(6). https://doi.org/10.3390/met8060441
Kamberović Ž, Ranitović M, Korać M, Anđić Z, Gajić N, Đokić J, Jevtić S. Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards. in METALS. 2018;8(6). doi:10.3390/met8060441 .
Kamberović, Željko, Ranitović, Milisav, Korać, Marija, Anđić, Zoran, Gajić, Nataša, Đokić, Jovana, Jevtić, Sonja, "Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards" in METALS, 8, no. 6 (2018), https://doi.org/10.3390/met8060441 . .