Results 1 to 10 of about 210 (163)
Copper Cathode Contamination by Nickel in Copper Electrorefining [PDF]
Metals, 2021 Nickel behavior has a significant role in the electrorefining of copper, and although it has been extensively studied from the anode and electrolyte point of view over the past decades, studies on nickel contamination at the cathode are limited.
Mika Sahlman +2 more
doaj +6 more sources
Electrorefining Process of the Non-Commercial Copper Anodes [PDF]
Metals, 2021 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
Radmila Markovic +6 more
doaj +6 more sources
Novel Additives in Copper Electrorefining—Small Laboratory Scale [PDF]
MaterialsThis research aimed to evaluate the effectiveness of new organic substances, including a novel ionic liquid based on polyhexamethylenebiguanidine, polyhexamethyleneguanidine, and safranin in the copper electrorefining process. Experiments were conducted on a small laboratory scale using industrial copper anodes.
Patrycja Kowalik +2 more
exaly +4 more sources
Journal of ChemistryThe copper electrorefining performance in acidified copper sulfate solution utilizing the potential-dynamic polarization technique was established. This was inspected through measurement and comparison of limiting current-cathode potential relationship ...
F. M. A. Abouzeid, S. Alshammery
doaj +3 more sources
Electrorefining of copper and anode passivation
Journal of MMIJ, 2020 In the process of electrorefining of copper, application of higher current density increases the tendency of anode passivation. The passivation disrupts the sound operation of the electrorefining process, reducing the current efficiency and the quality ...
Hideaki SASAKI +2 more
doaj +3 more sources
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 Mechanism of Nodular Growth in Copper Electrorefining
Journal of MMIJ, 2020 The mechanism of nodulation in copper electrorefining process was investigated by experimental method and simulation, in particular as for its growth in height.
Ken ADACHI +6 more
doaj +3 more sources
Viscosity and density models for copper electrorefining electrolytes [PDF]
E3S Web of Conferences, 2016 Peer ...
Kalliomäki Taina +3 more
doaj +3 more sources
Metals, 2018 Increasing current density is one of the main methods for improving the productivity of copper electrorefining. However, in the conventional bottom-inlet/top-outlet mode, an increase in current density leads to a deterioration of the surface quality of ...
Hongdan Wang +3 more
doaj +3 more sources
Selective Recovery of Critical Minerals from Simulated Electronic Wastes Via Reaction-Diffusion Coupling. [PDF]
ChemSusChemWe achieve the facile separation of Fe, Dy, and Nd from model solutions of electronic waste using reaction‐diffusion coupling. Using a suite of X‐ray imaging, characterization, atomistic, and continuum simulations, we develop a predictive model for the distribution of the components in the reaction medium.
Wang Q +10 more
europepmc +2 more sources