Results 41 to 50 of about 318 (175)

Electrochemistry of Zirconium in Molten Chlorides

International Journal of Electrochemical Science, 2017
In this work, the electrochemical behavior of zirconium was studied on an inert molybdenum electrode at 550 °C in a LiCl-KCl-K2ZrF6 molten salt system, which is considered as an ideal electrolyte for the zirconium electrorefining process.
Liang Xu, Yanping Xiao, Qian Xu, Qiushi Song, Yongxiang Yang   +4 more
doaj   +1 more source

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, Gholamreza Khayati, Mohammadjavad Korasani   +2 more
doaj   +1 more source

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

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

Simulation Analysis of Potential Distribution, Ion Concentration Distribution and Natural Convection in Electrolyte During Copper Electrorefining

Journal of MMIJ
Numerical simulations are widely used to analyze the mass transfer in a cell with the aim of improving the efficiency of electrolysis processes. In this study, galvanostatic electrolysis with CuSO4–H2SO4 aqueous solution as the electrolyte and pure ...
Takumi TAKAICHI, Kohei YABUKI, Hideaki SASAKI   +2 more
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

Pseudo-Closed-Loop Metallurgy and Quality-Adjusted Circularity of Secondary Copper: A Conceptual Framework

Metals
Mass-based circularity indicators, such as ISO 59020:2024, quantify material recovery as a share of total throughput but do not account for chemical composition or functional performance, as a consequence of their sector-agnostic design.
Vesna Alivojvodić, Natalija Dolić, Jelena Zarić Kovačević, Nela Vujović   +3 more
doaj   +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

Analysis of Unit Process Cost for an Engineering-Scale Pyroprocess Facility Using a Process Costing Method in Korea

Energies, 2015
Pyroprocessing, which is a dry recycling method, converts spent nuclear fuel into U (Uranium)/TRU (TRansUranium) metal ingots in a high-temperature molten salt phase. This paper provides the unit process cost of a pyroprocess facility that can process up
Sungki Kim, Wonil Ko, Sungsig Bang
doaj   +1 more source