Effect of Lead and Oxygen on the Passivation of Copper Anodes

Gauthier, Hélène; Manzini, M.; Ghali, Edward

doi:10.1179/cmq.1999.38.1.23

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“…Increase of Pb content facilitates the anode passivation, but it was established that if oxygen is present besides Pb, the anodes will not be passive [8,9]. It is well known that Sn in copper bearing anodes is almost always present as SnO 2 , and rarely in the composite forms of oxides, formed at the copper grain boundaries.…”

Section: Introductionmentioning

confidence: 97%

Behaviour of non-standard composition copper bearing anodes from the copper refining process

Marković¹,

Friedrich²,

Stajić-Trošić³

et al. 2010

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 97%

Behaviour of non-standard composition copper bearing anodes from the copper refining process

Marković¹,

Friedrich²,

Stajić-Trošić³

et al. 2010

Journal of Hazardous Materials

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Challenges for development of technology for prevention of anode passivation during electrorefining of low-grade copper

Sasaki

Okabe

2020

Journal of the Mining and Materials Processing Institute of Jap

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Over the past years, the significance of recycling Cu and its accompanying metals has been increasing. However, the frequency of anode passivation increases during the electrorefining of copper when the copper anode contains a high concentration of impurities. When the amount of secondary materials (scraps) used is increased, the process of electrorefining is frequently troubled because e-waste contains elements that induce anode passivation. Therefore, the development of passivation-prevention technology for low-grade copper anode is essential. This article reviews previous research on the behavior of impurities in the Cu anode and their effects on passivation. The guiding principles for developing passivation-prevention technology are also outlined.

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Effect of Lead and Oxygen on the Passivation of Copper Anodes

Cited by 2 publications

References 7 publications

Behaviour of non-standard composition copper bearing anodes from the copper refining process

Behaviour of non-standard composition copper bearing anodes from the copper refining process

Challenges for development of technology for prevention of anode passivation during electrorefining of low-grade copper

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