A5023557219- Extraction and Separation Processes
- Metallurgical Processes and Thermodynamics
- Iron and Steelmaking Processes
- Recycling and Waste Management Techniques
- Metal Extraction and Bioleaching
- Molten salt chemistry and electrochemical processes
- Advancements in Battery Materials
- Minerals Flotation and Separation Techniques
- Bauxite Residue and Utilization
- Recycling and utilization of industrial and municipal waste in materials production
- Materials Engineering and Processing
- Coal Combustion and Slurry Processing
- Mineral Processing and Grinding
- Thermochemical Biomass Conversion Processes
- Inorganic Fluorides and Related Compounds
- Thermal and Kinetic Analysis
- Glass properties and applications
- Radioactive element chemistry and processing
- Silicon and Solar Cell Technologies
- Combustion and flame dynamics
- Semiconductor materials and interfaces
- Geochemistry and Elemental Analysis
- Fiber-reinforced polymer composites
- Silicon Nanostructures and Photoluminescence
- Coal and Its By-products
Delft University of Technology
2016-2025
Anhui University of Technology
2011-2021
Wuhan University of Science and Technology
2017-2020
Materials Science & Engineering
2010-2019
Norwegian University of Science and Technology
2019
Northeastern University
2010-2017
421 Hospital of PLA
2017
Research Institute of Petroleum Exploration and Development
2016
Universidad del Noreste
2012
End-of-life recycling is promoted by OECD countries as a promising strategy in the current global supply crisis surrounding rare earth elements (REEs) so that dependence on China, dominant supplier, can be decreased. So far feasibility and potential yield of REE has not been systematically evaluated. This paper estimates annual waste flows neodymium dysprosium from permanent magnets, main deployment these critical REEs, during 2011-2030 period. The focus three key magnet flows: wind...
Critical metals are significantly important in the preparation of high-tech materials associated with applications on, e.g., renewable energy, sustainable engineering and cleaner production. This importance together supply risk to a substantial extent within European Union (EU) has pushed their recovery from waste being highlighted. Electronic waste, usually end-of-life electronic products, is notable secondary resource for this purpose because its distinctive features. A range critical...
In recent years, recovery of metals from electronic waste within the European Union has become increasingly important due to potential supply risk strategic raw material and environmental concerns. Electronic waste, especially a mixture end-of-life products variety sources, is inherently high complexity in composition, phase, physiochemical properties. this research, closed-loop hydrometallurgical process was developed recover valuable metals, i.e., copper precious an industrially processed...
Sulphur removal in the ironmaking and oxygen steelmaking process is reviewed. A sulphur balance made for of Tata Steel IJmuiden, Netherlands. There are four stages where can be removed: blast furnace (BF), during hot metal (HM) pretreatment, converter secondary metallurgy (SM) treatment. For a low activity basic slag required. In BF typically 90% removed; still, HM contains about 0.03% sulphur. Different desulphurisation processes used worldwide. With co-injection or Kanbara reactor,...
Abstract Cobalt is considered a key metal in the energy transition, and demand expected to increase substantially by 2050. This for an important part because of cobalt use (electric vehicle) batteries. study investigated environmental impacts production how these could change future. We modeled possible future developments supply chain using four variables: (v1) ore grade, (v2) primary market shares, (v3) secondary (v4) transition. These variables are driven two metal‐demand scenarios, which...
With rapid growth in the use of NdFeB magnets and growing concerns for environmental protection as well conservation rare earths (REs), recycling magnet scrap is becoming a hot issue current society. In this study, it demonstrated that can be selectively extracted using molten MgCl2–KCl salts at temperatures 600–1200 °C. After crushing to granules, was subjected chlorides dry argon atmosphere. The reaction process between directly observed high-temperature contact angle measuring instrument...
A closed loop room temperature electrochemical process for selective recovery of REEs from NdFeB magnet waste.
In this manuscript, we demonstrate a room temperature electrochemical process for efficiently recycling NdFeB magnet waste. First, the waste was completely leached with HCl and then, in-situ oxidation performed to selectively oxidize Fe(II) in leachate Fe(III). Finally, oxalic acid added directly electro-oxidized which precipitated more than 98% of rare earth elements as rare-earth oxalates. The calcination oxalates produced mixed oxides 99.2% purity marketable Fe(III) solution by-product....
The recovery of neodymium from post-consumer products is gaining significant interest. To study the recycling feasibility in end-of-life (EOL) computer hard disc drives (HDDs), NdFeB magnets were collected using a steel grate during commercial shredding, followed by thermal demagnetisation, grinding and screening to yield an upgraded scrap. Two metallurgical extraction routes investigated. first high temperature molten slag H2SO4 leaching at room temperature. Both CaO–SiO2–Al2O3 CaO–CaF2...
NdFeB magnets are used in wind turbines and hybrid electric vehicles instrumental progression toward a low-carbon economy. Recycling rare-earth elements (REEs) from magnet waste is an important step building sustainable REE supply chain. In this study, we describe electrochemical process to selectively extract REEs at room temperature. First, electrolysis pretreatment was performed convert the present into respective hydroxides. A dual anode system where taken as along with inert reactor....
In the smelting cyclone of HIsarna process, both thermal decomposition and gaseous reduction iron ore contribute to expected pre-reduction degree about 20%. However, fine melting process in is extremely fast it very difficult differentiate between reduction. This study focused on mechanism under different conditions. Firstly, theoretical evaluation has been conducted based thermodynamics, then laboratory investigation was three stages with reactors: TGA-DSC, electrically heated horizontal...
The adsorption of Ga(III) and V(V) onto an amidoxime resin (LSC700) has been investigated. parameters studied include the effects contact time, initial metal ions concentration, temperature by batch method. capacity for was found to be 29.24 22.60 mg/g, respectively. kinetics LSC700 could well elucidated with Lagergren-second-order equation. Langmuir isotherm fitted experimental data well, indicating a homogeneous adsorption. Thermodynamic parameters, involving ΔG, ΔH, ΔS were also...