Minerals Engineering, Journal Year: 2024, Volume and Issue: 213, P. 108744 - 108744
Published: May 22, 2024
Language: Английский
Journal of Sustainable Metallurgy, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 21, 2025
Language: Английский
Citations
0
Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131761 - 131761
Published: Jan. 1, 2025
Language: Английский
Citations
0
Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 1795 - 1795
Published: Feb. 20, 2025
The present study developed a novel approach for transforming red mud (RM) into soft magnetic materials (SMMs) applications in advanced electrical devices the form of Fe-Si and Fe-Si-Al alloys. A total ten blends were prepared based on two RMs, three iron oxide additives (Fe2O3, black mill scales), alumina carbonaceous reductants range proportions. Carbothermic reduction was carried out vertical Tamman resistance furnace at 1600–1650 °C 30 min an argon atmosphere; synthetic graphite used as reductant. Reaction products characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray fluorescence (XRF) diffraction (XRD). Significant amounts Fe-rich metallic droplets/regions different grain sizes (0.5 to 500 μm) produced these studies. formation alloys with Si contents from 3.9 6.7 wt.% achieved 8 10 blends; optimal levels SMMs ranged 3.2 6.5 wt.%. There clear evidence (up 1.8 Al) 4 blends. In addition lowering operating challenges associated RM processing, blending RMs presents recycling converting valuable possible emerging renewable energy, storage, vehicles other fields. Along reducing stockpiles across globe, this is expected improve resource efficiency, mitigating environmental impacts while generating economic benefits.
Language: Английский
Citations
0
Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 692, P. 133875 - 133875
Published: April 5, 2024
Language: Английский
Citations
3
Mineral Processing and Extractive Metallurgy Review, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 15
Published: Jan. 22, 2025
This study presents a method for recovering scandium from Indonesian bauxite residue (red mud) through sulfation roasting-assisted water leaching process. Ammonium sulfate, (NH4)2SO4, was chosen as the sulfate source its lower melting point, less corrosivity, decreased toxicity, and potential ammonia recovery. A modified mixing system introduced to improve distribution of (NH4)2SO4 on red mud particles by combining them in water. series experiments were conducted optimize roasting process examining effects (NH4)2SO4/red ratio, temperature, time. Subsequently, optimized while considering effect time liquid-to-solid (L/S) ratio. The roasted showed rapid kinetics, even when using only Under conditions 1/1 (g/g) 700°C, 60 min time, 65°C, min, 10 mL/g (L/S), over 90% recovered, along with 64.4% Al below 8% Fe leaching. These results further corroborated comprehensive analyses such x-ray diffraction (XRD) scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS). offers insights into an alternative, more environmentally friendly Sc recovery mud, promoting sustainable use hazardous waste like mud.
Language: Английский
Citations
0
JOM, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 27, 2025
Language: Английский
Citations
0
Fuel, Journal Year: 2025, Volume and Issue: 394, P. 135128 - 135128
Published: March 18, 2025
Language: Английский
Citations
0
Environmental Research, Journal Year: 2023, Volume and Issue: 245, P. 117970 - 117970
Published: Dec. 22, 2023
Language: Английский
Citations
9
Materials, Journal Year: 2024, Volume and Issue: 17(15), P. 3686 - 3686
Published: July 25, 2024
The addition of rare earth metals to aluminum alloys can effectively improve their corrosion resistance and has been widely used in the aerospace military industries. However, current methods for preparation involve long processing steps, high energy consumption, carbon emissions, which severely constrains development alloys. Its output is further developed. To this end, paper reviews mainstream production processes (precipitation methods, microemulsion roasting-sulfuric acid leaching electrochemical solvent extraction ion exchange methods) provide basic information green smelting help promote smelting. Based on advantages disadvantages each process as well recent research results, optimal parameters efficiency were summarized. Studies have concluded that precipitation method mostly recovery elements related valuable from solid waste; nanosized by doping; treatment raw ores; molten salt electrolysis a more specific method. This environmentally friendly process. results study direction realization reference improving existing
Language: Английский
Citations
3
Separations, Journal Year: 2024, Volume and Issue: 11(8), P. 232 - 232
Published: July 27, 2024
At present, cobalt belongs to what are called critical raw materials due its scarcity and economic importance. Cobalt is a crucial element in the development of new technologies applications for decarbonization, with around 40% consumption being used rechargeable battery materials. Additionally, cobalt-based catalysts production hydrogen fuel cells, this also employed superalloys aerospace power generation industries. For reason, it imperative increase recycling by recovering from secondary sources, such as decommissioned lithium-ion batteries. Among recovery, adsorption reliable alternative allows recovery even at low concentrations aqueous solutions relatively cost. potential adsorbents paper reviews two most promising solutions: zeolitic carbonaceous Regarding materials, maximum capacities reached FAU-type zeolites. In case actual trend obtain activated carbons wide range carbon including waste, capacities, on average, larger than ones allow, many cases, selective separation other ions which present same time lithium.
Language: Английский
Citations
3