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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10252176" target="_blank" >RIV/61989100:27360/22:10252176 - isvavai.cz</a>

Výsledek na webu

<a href="https://ros.edu.pl/images/roczniki/2022/026_ROS_V24_R2022.pdf" target="_blank" >https://ros.edu.pl/images/roczniki/2022/026_ROS_V24_R2022.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.54740/ros.2022.026" target="_blank" >10.54740/ros.2022.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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%. (C) 2022. Author(s).

Název v anglickém jazyce

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

Popis výsledku anglicky

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%. (C) 2022. Author(s).

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

50204 - Business and management

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Rocznik Ochrony Środowiska

ISSN

1506-218X

e-ISSN

—

Svazek periodika

24

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

12

Strana od-do

371-382

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85142869272