Electrorefining process of the non-commercial copper anodes
Authors
Marković, Radmila
Krstić, Vesna

Friedrich, Bernd

Stopić, Srećko

Stevanović, Jasmina

Stevanović, Zoran
Marjanović, Vesna
Article (Published version)
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The electrorefining process of the non-commercial Cu anodes was tested on the enlarged laboratory equipment over 72 h. Cu anodes with Ni content of 5 or 10 wt.% and total content of Pb, Sn, and Sb of about 1.5 wt.% were used for the tests. The real waste solution of sulfuric acid character was a working electrolyte of different temperatures (T1 = 63 ± 2 °C and T2 = 73 ± 2 °C). The current density of 250 A/m2 was the same as in the commercial process. Tests were confirmed that those anodes can be used in the commercial copper electrorefining process based on the fact that the elements from anodes were dissolved, the total anode passivation did not occur, and copper is deposited onto cathodes. The masses of cathode deposits confirmed that the Cu ions from the electrolyte were also deposited onto cathodes. The concentration of Cu, As, and Sb ions in the electrolyte was decreased. At the same time, the concentration of Ni ions was increased by a maximum of up to 129.27 wt.%. The major crys...talline phases in the obtained anode slime, detected by the X-ray diffraction analyses, were PbSO4, Cu3As, SbAsO4, Cu2O, As2O3, PbO, SnO, and Sb2O3.
Keywords:
Anode slime / Electrorefining / High content / Ni / Non-commercial copper anode / Passivation / Pb / Sb / Sn / Waste solutionSource:
Metals, 2021, 11, 8, 1187-Publisher:
- MDPI
Funding / projects:
DOI: 10.3390/met11081187
ISSN: 2075-4701
WoS: 000689573200001
Scopus: 2-s2.0-85111099716
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IHTMTY - JOUR AU - Marković, Radmila AU - Krstić, Vesna AU - Friedrich, Bernd AU - Stopić, Srećko AU - Stevanović, Jasmina AU - Stevanović, Zoran AU - Marjanović, Vesna PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4751 AB - The electrorefining process of the non-commercial Cu anodes was tested on the enlarged laboratory equipment over 72 h. Cu anodes with Ni content of 5 or 10 wt.% and total content of Pb, Sn, and Sb of about 1.5 wt.% were used for the tests. The real waste solution of sulfuric acid character was a working electrolyte of different temperatures (T1 = 63 ± 2 °C and T2 = 73 ± 2 °C). The current density of 250 A/m2 was the same as in the commercial process. Tests were confirmed that those anodes can be used in the commercial copper electrorefining process based on the fact that the elements from anodes were dissolved, the total anode passivation did not occur, and copper is deposited onto cathodes. The masses of cathode deposits confirmed that the Cu ions from the electrolyte were also deposited onto cathodes. The concentration of Cu, As, and Sb ions in the electrolyte was decreased. At the same time, the concentration of Ni ions was increased by a maximum of up to 129.27 wt.%. The major crystalline phases in the obtained anode slime, detected by the X-ray diffraction analyses, were PbSO4, Cu3As, SbAsO4, Cu2O, As2O3, PbO, SnO, and Sb2O3. PB - MDPI T2 - Metals T1 - Electrorefining process of the non-commercial copper anodes VL - 11 IS - 8 SP - 1187 DO - 10.3390/met11081187 ER -
@article{ author = "Marković, Radmila and Krstić, Vesna and Friedrich, Bernd and Stopić, Srećko and Stevanović, Jasmina and Stevanović, Zoran and Marjanović, Vesna", year = "2021", abstract = "The electrorefining process of the non-commercial Cu anodes was tested on the enlarged laboratory equipment over 72 h. Cu anodes with Ni content of 5 or 10 wt.% and total content of Pb, Sn, and Sb of about 1.5 wt.% were used for the tests. The real waste solution of sulfuric acid character was a working electrolyte of different temperatures (T1 = 63 ± 2 °C and T2 = 73 ± 2 °C). The current density of 250 A/m2 was the same as in the commercial process. Tests were confirmed that those anodes can be used in the commercial copper electrorefining process based on the fact that the elements from anodes were dissolved, the total anode passivation did not occur, and copper is deposited onto cathodes. The masses of cathode deposits confirmed that the Cu ions from the electrolyte were also deposited onto cathodes. The concentration of Cu, As, and Sb ions in the electrolyte was decreased. At the same time, the concentration of Ni ions was increased by a maximum of up to 129.27 wt.%. The major crystalline phases in the obtained anode slime, detected by the X-ray diffraction analyses, were PbSO4, Cu3As, SbAsO4, Cu2O, As2O3, PbO, SnO, and Sb2O3.", publisher = "MDPI", journal = "Metals", title = "Electrorefining process of the non-commercial copper anodes", volume = "11", number = "8", pages = "1187", doi = "10.3390/met11081187" }
Marković, R., Krstić, V., Friedrich, B., Stopić, S., Stevanović, J., Stevanović, Z.,& Marjanović, V.. (2021). Electrorefining process of the non-commercial copper anodes. in Metals MDPI., 11(8), 1187. https://doi.org/10.3390/met11081187
Marković R, Krstić V, Friedrich B, Stopić S, Stevanović J, Stevanović Z, Marjanović V. Electrorefining process of the non-commercial copper anodes. in Metals. 2021;11(8):1187. doi:10.3390/met11081187 .
Marković, Radmila, Krstić, Vesna, Friedrich, Bernd, Stopić, Srećko, Stevanović, Jasmina, Stevanović, Zoran, Marjanović, Vesna, "Electrorefining process of the non-commercial copper anodes" in Metals, 11, no. 8 (2021):1187, https://doi.org/10.3390/met11081187 . .