Results 41 to 50 of about 211 (161)

Effect of process variables on oxidative pressurized acid leaching of copper electrorefining anode slimes

E3S Web of Conferences, 2016
Extraction of Cu, Ni, As and Te from copper electrorefining anode slimes was studied. Such parameters as sulfuric acid concentration, temperature and oxygen partial pressure had a positive effect on the oxidative pressurized acid leaching in the ...
Seisko Sipi, Aromaa Jari, Latostenmaa Petri, Forsen Olof, Lundstrom Mari   +4 more
doaj   +1 more source

Antimony recovery from copper refining electrolyte by membrane electrolysis [PDF]

REM: International Engineering Journal
To produce metallic copper with high quality, it is important to have all impurities present in the electrorefining cell under control. Antimony is present in the copper refining electrolyte as an impurity coming from pyrorefinated anodes.
Belén Garrido, Javiera Lara, Juan Moreno, Alexandre Giacobbo, Eduardo Pino, Gerardo Cifuentes, Andréa Moura Bernardes   +6 more
doaj   +1 more source

Behaviour of Anode Impurities in Copper Electrorefining.

Shigen-to-Sozai, 1991
Many factors which affects the anode passivation during electrolysis were discussed in this paper. These includes the amount of slime and slime adhesiveness. The internal factors which affects the amount of slime include the type, concentration and the form of impurities which exists in the anode.
NOGUCHI, Fumio, IIDA, Yoshihisa, NAKAMURA, Takashi, UEDA, Yasuaki   +3 more
openaire   +2 more sources

Environmental Impact Assessment of Copper‐Alloy Production Using Process Simulation and Semantic Modeling

Advanced Engineering Materials, Volume 27, Issue 8, April 2025.
In the current research, how environmental impacts of products can be tracked through complex production networks using semantic data and environmental impact calculations is demonstrated. Here, the example of secondary copper production and the subsequent production of copper alloys is discussed.
Mohsin Sajjad, Karl Gerald van den Boogaart, Leon Steinmeier, Ashak Mahmud Parvez   +3 more
wiley   +1 more source

Impedimetric determination of low concentration of thiourea in Cu2+ containing acidic media on nanostructured platinum electrode [PDF]

شیمی کاربردی روز, 2015
Nowadays, detection of low concentration of thiourea (TU) in the presence of high amounts of metallic ions is one of the important challenges in different industries, especially electrochemical industries.
Saied Simorgh, Reza Rahmanian, Sayed Ahmad Mozaffari, Mohammad Hasan Armanmehr   +3 more
doaj   +1 more source

Functional Recycling and Reuse of Nd–Fe–B Permanent Magnets from Various Waste Streams for a more Sustainable and Resilient Electromobility

Advanced Engineering Materials, Volume 27, Issue 7, April 2025.
Due to the increasing demand and growing importance of resilient and sustainable supply chains, the use of recycled and reused Nd–Fe–B magnets in e‐mobility applications such as Pedelecs, e‐Scooters, and Hoverboards is being investigated. It can be shown that the corresponding motors with recycled magnets do not exhibit any loss of performance while at
Mario Schönfeldt, Konrad Opelt, Mahmudul Hasan, Michael Gröninger, Dennis Jahnke, Jürgen Gassmann, Oliver Gutfleisch   +6 more
wiley   +1 more source

Deciphering the Electrochemical Activity and Selectivity of Earth‐Abundant Transition Metal‐Based Catalysts for the Alcohol Electrooxidation—Current Status

ChemCatChem, Volume 17, Issue 8, April 15, 2025.
This paper reviews the electrocatalytic activity and selectivity of non‐noble metal‐based catalysts in alternative anode reactions, particularly the glycerol oxidation reaction. It explores mechanistic factors influencing catalytic activity, including metal ions and oxygen species, emphasizing the importance of M─O motifs.
Michael Braun, Corina Andronescu
wiley   +1 more source

Chronoamperometric Cu(II) Analysis at Gold Ultramicroelectrodes in Concentrated Sulfuric Acid Solutions

International Journal of Electrochemical Science, 2017
Chronoamperometric analysis of Cu (II) ion concentration at a gold ultramicroelectrode (UME) is reported. An appropriate potential/time program was selected after the analysis of the corresponding j vs t transients in order to establish a defined value ...
H. Gómez, G. Riveros, D. Ramírez
doaj   +1 more source

Physicochemical vs Electrochemical Technologies for Metal Recovery – Main Insights, Comparison, Complementarity and Challenges

Chemistry–Methods, Volume 5, Issue 3, March 2025.
Different electrochemical and physicochemical methods employed for metal recovery and removal from various sources are presented herein, along with their key performance indicators. The main strengths and weaknesses of each technology are discussed in a comparative manner, when possible.
Stefanos Mourdikoudis, Xochitl Dominguez‐Benetton   +1 more
wiley   +1 more source

A Mature Tool to Address New Challenges: Harnessing Coordination Chemistry for The Sustainable Copper Recovery from Industrial and E‐Waste in The Age of Energy Transition

European Journal of Inorganic Chemistry, Volume 28, Issue 4, February 3, 2025.
Copper is a fundamental transition metal with wide‐ranging applications in chemistry, technology, and society. Its recovery and recycling are vital to support the increasing demands of energy transition and digitalization. In this context, coordination chemistry plays a crucial role in developing sustainable and environmentally friendly processes for ...
Pietro Ostellari, Silvia Gross
wiley   +1 more source