Results 21 to 30 of about 168,935 (268)

Purification of Aluminium Cast Alloy Melts through Precipitation of Fe-Containing Intermetallic Compounds

open access: yesMetals, 2018
Aluminium secondary materials are often contaminated by impurities such as iron. As the alloy properties are affected by impurities, it is necessary to refine aluminium melts. The formation of Fe intermetallics in aluminium melts can be used to develop a
Marina Gnatko   +3 more
doaj   +1 more source

Recycling Potential of Lithium–Sulfur Batteries—A First Concept Using Thermal and Hydrometallurgical Methods

open access: yesMetals, 2020
High-energy battery systems are gaining attention in the frame of global demands for electronic devices and vehicle electrification. This context leads to higher demands in terms of battery system properties, such as cycle stability and energy density ...
Lilian Schwich   +2 more
doaj   +1 more source

Advance in ultrasonic spray pyrolysis (USP) for the synthesis of gold nanoparticles [PDF]

open access: yesVojnotehnički Glasnik, 2020
Introduction/purpose: Ultrasonic spray pyrolysis (USP) is usually used for the preparation of submicronic and nanosized gold powders. This is a simple method for a synthesis from an aerosol containing dissolved metallic salts such as gold chloride ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Computation-assisted analyzing and forecasting on impurities removal behavior during zone refining of antimony

open access: yesJournal of Materials Research and Technology, 2020
High purity antimony (Sb) gains nowadays a rising interest for high-tech applications. Zone refining is commonly used as a reliable final purification step to achieve higher purity levels of Sb. However, the removal of arsenic (As) - the most troublesome
Xiaoxin Zhang   +4 more
doaj   +1 more source

Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part)

open access: yesMetals, 2023
The results obtained from the work on a concept of a recycling process for NdFeB magnets to recover rare earth elements for remanufacturing similar magnets are presented.
Hanwen Chung   +5 more
doaj   +1 more source

Refining Principles and Technical Methodologies to Produce Ultra-Pure Magnesium for High-Tech Applications

open access: yesMetals, 2019
During the last decade, magnesium-based medical implants have become the focal point of a large number of scientific studies due to their perceived favorable properties.
Seifeldin R. Mohamed   +2 more
doaj   +1 more source

Recovery of cobalt from primary and secondary materials - an overiew / Извлечение кобальта из первичных и вторичных материалов - обзор / Izdvajanje kobalta iz primarnih i sekundarnih materijala - pregled [PDF]

open access: yesVojnotehnički Glasnik, 2020
Introduction/purpose: Cobalt is a strategic metal for industrial application. Cobalt recovery from oxidic ores such as laterite and sulphidic ores, and from secondary materials during acidic treatment and precipitation is a highly used strategy ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Hydrogen Reduction of Tellurium Oxide in a Rotary Kiln, Initial Approaches for a Sustainable Process

open access: yesCrystals
In the recycling of semiconductor materials like Bi2Te3 or CdTe, TeO2 may form as a by-product that can be directly reduced to recover metallic Te. The hydrogen reduction of TeO2 offers an eco-friendly alternative to conventional carbothermic reduction ...
Hanwen Chung   +3 more
doaj   +1 more source

Deposition of silica in hydrometallurgical processes / Отложение кремния в гидрометаллургических процессах / Taloženje silicijum-dioksida u hidrometalurškim procesima [PDF]

open access: yesVojnotehnički Glasnik, 2020
Introduction/purpose: Dissolution of nonferrous metals from oxidic ores such as laterite, high silicon bauxite and eudialyte during acidic treatment was connected with silica gel formation.
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Degradation Mechanism of Nickel-Cobalt-Aluminum (NCA) Cathode Material from Spent Lithium-Ion Batteries in Microwave-Assisted Pyrolysis

open access: yesMetals, 2018
Recycling of Li-Ion Batteries (LIBs) is still a topic of scientific interest. Commonly, spent LIBs are pretreated by mechanical and/or thermal processing. Valuable elements are then recycled via pyrometallurgy and/or hydrometallurgy.
Fabian Diaz   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy