Recycling of Gold From Waste Electrical and Electronic Equipment by Electrorefining of Copper

• Autorzy: Wędrychowicz Maciej , Piotrowicz Andrzej , Gabryelewicz Izabela , Stryjski Roman , Krupa Patryk , Okoniewska Oliwia , Besta Petr , Samolejová Andrea

Identyfikatory

DOI

10.54740/ros.2022.026

• Języki publikacji: EN

Abstrakty

EN

This article presents the methods of processing gold-plated pins from, among others, used computer equipment and discusses the research results on the recovered metal. Due to the relatively small structure of the pins and the fact that the gold layer is only a few microns thick, recovering gold from them constitutes a significant challenge. On the other hand, gold is a precious metal which enables the collective removal of other metals to obtain pure gold. The suggested method involves compacting the gold-plated pins into an anode form and carrying out the electro-refining process. Metals, such as copper, tin and iron, pass into the anode sludge from which they can be extracted or serve as a commercial intermediate sold to smelter plants. The anode sludge was melted in the flame of an oxy-acetylene torch in a graphite crucible by adding borax. As a result of the melting, several metallic precipitates were obtained. Then they were hot-incorporated into a sample with a diameter of 30 mm and a height of 12 mm. Eventually, a pure gold alloy sample was obtained, which contains Cu 40.69%, Sn 9.61% and Au 48.58%.

Słowa kluczowe

EN

gold electro-refining; e-waste; gold recovery

• Wydawca: Politechnika Koszalińska
• Czasopismo: Rocznik Ochrona Środowiska
• Rocznik: 2022
• Tom: Tom 24
• Strony: 371--382
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Wędrychowicz Maciej

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

• https://orcid.org/0000-0002-6203-229X

autor

Piotrowicz Andrzej

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

autor

Gabryelewicz Izabela

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

• https://orcid.org/0000-0002-0691-4108

autor

Stryjski Roman

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

• https://orcid.org/0000-0001-9191-2889

autor

Krupa Patryk

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

• https://orcid.org/0000-0002-8388-0175

autor

Okoniewska Oliwia

• Faculty of Mechanical Engineering, Institute of Materials and Biomedical Engineering Department of Metallurgy and Materials Engineering, University of Zielona Góra, Poland

autor

Besta Petr

• Department of Economics and Management in Industry, Faculty of Materials Science and Technology, VŠB – Technical University of Ostrava, Czech Republic

• https://orcid.org/0000-0001-6309-708X

autor

Samolejová Andrea

• Department of Economics and Management in Industry, Faculty of Materials Science and Technology, VŠB – Technical University of Ostrava, Czech Republic

• https://orcid.org/0000-0001-9418-1583

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).