TY  - JOUR
AU  - Jovanović, Gvozden
AU  - Bugarčić, Mladen
AU  - Petronijević, Nela
AU  - Stopić, Srećko
AU  - Friedrich, Bernd
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Sokić, Miroslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/621
AB  - Electric waste from numerous devices that are put out of use every day has some form of printed circuit board that contains precious and valuable metals in their components. In order to extract these metals, the printed circuit boards were crushed and pyrolyzed into powder. The fine pyrolyzed printed circuit board (PPCB) powder was separated into fractions, and the fine metallic fraction was used as a raw material for metal leaching extraction. In order to better understand how various metal species react in leaching media, several leaching agents were used (sulfuric acid, nitric acid, glycine, and acid mine drainage-AMD) alone, and with the addition of hydrogen peroxide. Additionally, the influence of the S/L ratio and leaching temperature were investigated in sulfuric acid leaching solutions, as this is the one most widely used. In one case, the reactor was heated in a thermal bath, while in the other, it was heated in an ultrasonic bath. Lastly, several experiments were conducted with a (consecutive) two-pronged leaching approach, with and without applied pretreatment. The aim of this paper is to give a multifocal and detailed approach to how metals such as Al, Cu, Co, Zn, Sn, and Ca behave when extracted from fine PPCB powder. However, some attention is given to Nd, Pd, Pb, and Ba as well. One of the main findings is that regardless of the pretreatment or the sequence of leaching media applied, consecutive two-pronged leaching cannot be used for selective metal extraction. However, AMD was found to be suitable for selective leaching with very limited applications.
PB  - MDPI, Basel
T2  - Metals
T1  - A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching
IS  - 12
VL  - 12
DO  - 10.3390/met12122021
UR  - conv_961
ER  - 

@article{
author = "Jovanović, Gvozden and Bugarčić, Mladen and Petronijević, Nela and Stopić, Srećko and Friedrich, Bernd and Marković, Branislav and Stanković, Srđan and Sokić, Miroslav",
year = "2022",
abstract = "Electric waste from numerous devices that are put out of use every day has some form of printed circuit board that contains precious and valuable metals in their components. In order to extract these metals, the printed circuit boards were crushed and pyrolyzed into powder. The fine pyrolyzed printed circuit board (PPCB) powder was separated into fractions, and the fine metallic fraction was used as a raw material for metal leaching extraction. In order to better understand how various metal species react in leaching media, several leaching agents were used (sulfuric acid, nitric acid, glycine, and acid mine drainage-AMD) alone, and with the addition of hydrogen peroxide. Additionally, the influence of the S/L ratio and leaching temperature were investigated in sulfuric acid leaching solutions, as this is the one most widely used. In one case, the reactor was heated in a thermal bath, while in the other, it was heated in an ultrasonic bath. Lastly, several experiments were conducted with a (consecutive) two-pronged leaching approach, with and without applied pretreatment. The aim of this paper is to give a multifocal and detailed approach to how metals such as Al, Cu, Co, Zn, Sn, and Ca behave when extracted from fine PPCB powder. However, some attention is given to Nd, Pd, Pb, and Ba as well. One of the main findings is that regardless of the pretreatment or the sequence of leaching media applied, consecutive two-pronged leaching cannot be used for selective metal extraction. However, AMD was found to be suitable for selective leaching with very limited applications.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching",
number = "12",
volume = "12",
doi = "10.3390/met12122021",
url = "conv_961"
}

Jovanović, G., Bugarčić, M., Petronijević, N., Stopić, S., Friedrich, B., Marković, B., Stanković, S.,& Sokić, M.. (2022). A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching. in Metals
MDPI, Basel., 12(12).
https://doi.org/10.3390/met12122021
conv_961

Jovanović G, Bugarčić M, Petronijević N, Stopić S, Friedrich B, Marković B, Stanković S, Sokić M. A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching. in Metals. 2022;12(12).
doi:10.3390/met12122021
conv_961 .

Jovanović, Gvozden, Bugarčić, Mladen, Petronijević, Nela, Stopić, Srećko, Friedrich, Bernd, Marković, Branislav, Stanković, Srđan, Sokić, Miroslav, "A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching" in Metals, 12, no. 12 (2022),
https://doi.org/10.3390/met12122021 .,
conv_961 .