Results 41 to 50 of about 1,897 (212)

Numerical and Experimental Study of Packed Bed Heat Transfer on the Preheating of Manganese Ore with Air up to 600 °C

Metals
This work studies heat transport in the fluid–solid interface of a packed bed to demonstrate the feasibility of preheating lumpy manganese ores to 600 °C with air at 750 °C.
Sifiso Nation Sambo, Lina Hockaday, Tumisang Seodigeng, Quinn Gareth Reynolds   +3 more
doaj   +1 more source

Toward Single‐Crystal Upcycling of Degraded Lithium‐Ion Battery Cathodes

EcoEnergy, EarlyView.
This review first summarizes the degradation mechanisms of polycrystalline cathodes, emphasizing the role of grain boundaries and rock‑salt phase formation. It then highlights the main optimization pathways (surface reconstruction, rapid structural repair, PC‑to‑SC transformation, and interface engineering) and the three conversion methods (SSU, MSAU ...
Israel Ebou Chabi, Xue Liu, Wen Luo, Yi Wang, Rui Xu, Jundong Lu, Jean‐Jacques Gaumet, Liqiang Mai   +7 more
wiley   +1 more source

Hygienic assessment of layout and sanitary engineering solutions in copper pyrometallurgy [PDF]

, 2011
The comparative characteristics of the building and planning and sanitary engineering solutions (ventilation) for pyrometallurgy copper companies, taking into account the technology and regional distribution of the plants, are presented.
Адриановский, В. И., Lipatov, G. Y., Adrianovskiy, V. I., Липатов, Г. Я.   +3 more
core  

Sustainable Revival of Spent Lithium Iron Phosphate Cathodes in Li‐Ion Batteries: Recycling and Surface Engineering Approaches

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration of the lifecycle of LiFePO4 cathodes. Lithiation and delithiation reactions happen through its discharging and charging processes. Recycling pathways including hydrometallurgy, pyrometallurgy, and direct regeneration enable sustainable reuse of spent LFP materials. Surface modification approaches (carbon, polymer, and metal/metal
Yan He, Ruigang Wang
wiley   +1 more source

Selective Preferential Separation and Extraction of Rhodium: A Review

Metals
Due to its extensive industrial applications and high market prices, as well as low mining yield, the recovery of rhodium from various secondary resources is becoming increasingly urgent for addressing its supply issues.
Haitao Zhou, Zhizhuo Yang, Xiaofei Meng, Xiaoping Zou, Yingping Jiang, Kun Huang   +5 more
doaj   +1 more source

Multifunctional Oleylamine Enables Direct Regeneration of Spent Lithium Iron Phosphate Cathodes through Coupled Lattice and Interface Repair

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multifunctional oleylamine‐assisted solvothermal strategy is introduced for coupled lattice and interface repair of S‐LFP cathodes. Benefiting from its strongly coordinating amine groups and long hydrophobic alkyl chains, oleylamine simultaneously acts as an intrinsic reductant, defect‐repair mediator, morphology stabilizer, and carbon/nitrogen ...
Yuan Feng, Ziyan Liu, Ruiqi Gao, Shidong Li, Zhenhang Zhong, Hao Zhang, Meichen Zhu, Ao Liu, Xuanpeng Wang, Kang Han, Chaojiang Niu, Jiashen Meng   +11 more
wiley   +1 more source

CF Pyro: Impressions of Applying Carbon Fibers at Semi-Industrial Scale as Reductant in Pyrometallurgy

, 2023
The increasing use of carbon fiber reinforced polymers (CFRP), as lightweight materials essential for the transformation, demands for a safe treatment option of carbon fiber (CF) containing waste streams. Because of their low reactivity towards oxidation
Loose, Florian
core  

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials

Small, EarlyView.
In this work, new membranes based on charged & nanoporous nanosheets with unprecedented selectivity to silver versus a wide range of other metallic ions are reported. Furthermore, a demonstrated and lead specific intralamellar lead pathway is demonstrated. A potential applicability for ubiquitous silver in WEEE is validated.
Sarah M. Chevrier, Thibault Rosier, Bo Han, Lina Cherni, Fabien L. Olivier, Hélène Isnard, Jean‐Christophe P. Gabriel   +6 more
wiley   +1 more source

Microwave‐Assisted Leaching and Mixed Oxalates Precipitation as Closed‐Loop NMC532 Recycling Process

ChemElectroChem, Volume 13, Issue 21, 3 November 2026.
This work presents a microwave‐assisted hydrometallurgical organic‐acid‐based recycling process for NMC cathode using mixed oxalates as precursors, that results in being straightforward and effective. Selected mixed‐metals oxalates are used to close the recycling loop and recover NMC532 crystalline structure through a solid‐state relithiation procedure,
Cristina Gatti, Maria Giuseppina Motta, Mahnoor Khan, Emilio Pafumi, Chiara Ferrara   +4 more
wiley   +1 more source

The reduction of zinc oxide by carbon [PDF]

, 1924
In spite of the fact that the reduction of zinc oxide by carbon is the fundamental reaction upon which the pyrometallurgy of zinc is based, there is a decided lack of accurate knowledge concerning the mechanism of the reaction, the temperature at which ...
Zeller, George August
core   +1 more source