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

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2018
2162.pdf (6.435Mb)
Authors
Kamberović, Željko
Ranitović, Milisav
Korać, Marija
Anđić, Zoran
Gajić, Nataša
Đokić, Jovana
Jevtić, Sonja
Article (Published version)
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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 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 recovery
Source:
METALS, 2018, 8, 6
Publisher:
  • 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
[ Google Scholar ]
24
9
URI
https://cherry.chem.bg.ac.rs/handle/123456789/2164
Collections
  • Publikacije / Publications
Institution/Community
Inovacioni centar / Innovation Centre
TY  - 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 . .

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