Results 11 to 20 of about 211 (161)
Toward Zero Waste Mining: Circular Economy of Copper Slags. [PDF]
Glob ChallMining and metal extraction processes generate over 90% of global waste. With the rapid increase in population and urbanization, the demand for geotechnical applications and construction materials constantly increases and can absorb the entire quantity of slags generated.
Mitrašinović A, Kamberović Ž, Yu D.
europepmc +2 more sources
The Behaviour of Low Arsenic Copper Anodes at High Current Density in Electrorefining [PDF]
Archives of Metallurgy and Materials, 2023 Arsenic is the only beneficial impurity for copper electrorefining through inhibiting anode passivation and the formation of floating slimes. The behaviour of copper anodes with different content of arsenic were studied at high current density (>280 A/m ...
Xuyong Zhang +3 more
doaj +1 more source
International Journal of Electrochemical Science, 2022 This paper studies the kinetic process of cation discharge in the flow field of a forced-flowing electrolyte during copper electrorefining. Through electrochemical methods such as rotating disk electrodes, linear sweep voltammetry curves and cathodic ...
Wenyu Feng +5 more
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Metals, 2021 Flash furnace electrostatic precipitator dust (FF-ESP dust) is a recycle stream in some primary copper production facilities. This dust contains high amounts of copper.
Michael Caplan +3 more
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Journal of MMIJ, 2020 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 ...
Hideaki SASAKI, Toru H. OKABE
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Going Beyond Silver in Ethylene Epoxidation with First‐Principles Catalyst Screening
Angewandte Chemie, Volume 135, Issue 31, August 1, 2023., 2023 Using computational screening of the periodic table for ethylene epoxidation catalysts, Ag/CuPb, Ag/CuCd, and Ag/CuTl were identified as superior catalysts. The inclusion of surface oxidation, side reactions and epoxide decomposition is shown to be paramount to avoid erroneous predictions.
Matej Huš +5 more
wiley +2 more sources
A sustainable approach to replace bleed stream in electrical refining of copper
Materials Letters: X, 2022 Despite extensive studies on electrorefining to remove impurities from copper production units, bleeding electrolytes is the most popular method for controlling impurities due to low operating costs.
Mohammadreza Shojaei +2 more
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Effect of Glue, Thiourea, and Chloride on the Electrochemical Reduction in CuSO4–H2SO4 Solutions
Metals, 2023 The effect of glue, thiourea, and chloride on the kinetics of copper reduction in CuSO4–H2SO4 solutions of copper composition, and temperatures like those used in the copper electrorefining plants, were studied.
Érika D. Nevárez-Llamas +3 more
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Distribution and Control of Arsenic during Copper Converting and Refining
Metals, 2022 Arsenic content in copper concentrates is continuously increasing worldwide. It is desirable to remove arsenic from copper in the earlier stages of copper making due to the deposition of arsenic to cathode copper during the electrorefining process ...
Feiyan Xu +5 more
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Materials Proceedings, 2023 In this work, electrodialysis (ED) and electro-electrodialysis (EED) were investigated as technologies for the recovery of Sb from wastes and effluents generated during the pyrometallurgical processing of copper sulfide minerals and the ...
Manuel César Martí-Calatayud +6 more
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