Results 51 to 60 of about 3,982,690 (195)

Synergistic extraction of critical metals from the oxalic leachate of spent FCC catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces an improved hydrometallurgy process utilizing a synergistic approach to improve metal recovery from secondary sources of critical metals. It provides a more efficient alternative to traditional single‐extractant methods for separating critical metals from spent refinery catalysts.
Silindile Gumede, Amir H. Mohammadi, Mbuyu G. Ntunka   +2 more
wiley   +1 more source

Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso, Lorena Alcaraz, Olga Rodríguez‐Largo, Félix A. López   +3 more
wiley   +1 more source

An environmental friendly Na2CO3-roasting decomposition strategy for the mixed rare earth concentrate

, 2016
The decomposition of the mixed RE (rare earth) concentrate bastnaesite (RECO3F) and monazite (REPO4) has been investigated extensively for a few decades.
Pan, Feng, Liu, Huizhou, Zhao, Junmei
core   +1 more source

Recovery and Repurposing of End‐of‐Life Graphitic Anodes for Green Lithium‐Ion Batteries

EcoEnergy, EarlyView.
This review summarizes the degradation mechanisms of spent graphite anodes in lithium‐ion batteries and highlights key recycling, regeneration, and modification strategies, including hydrometallurgical and pyrometallurgical approaches. It also discusses recent advances in surface engineering, structural regulation, and material hybridization, offering ...
Wei Wei, Weiguo Liu, Jiangqi Zhou
wiley   +1 more source

Study the Impact of Roasting Temperature on the Ceramic Corundum (SG) Abrasives

, 2011
In this paper, the property of the ceramic corundum (SG) abrasives are studied with the way of roasting the ceramic corundum (SG) abrasives in the different roasting temperature, and using microscope, the change pattern of the ceramic corundum (SG ...
Wen Jie Fan, Fang Liu
core   +1 more source

Optimization of microwave-assisted roasting: Box-behnken design for oxidation of sulfide minerals and control of atmospheric sulfur in refractory gold ore pretreatment

Case Studies in Chemical and Environmental Engineering
Response Surface Methodology and Box-Behnken Design have been applied to optimize microwave-assisted roasting of refractory gold ore. The roasting is used as a pretreatment for refractory gold ore to increase gold recovery during leaching.
Abdul Hapid, Siti Zullaikah, Mahfud Mahfud, Adji Kawigraha, Mifta Ulul Azmi, Irwan Haryanto, Haswi Purwandanu Soewoto, Alchris Woo Go, Suttichai Assabumrungrat   +8 more
doaj   +1 more source

Study on roasting process of zircon-silica sol ceramic mould [PDF]

China Foundry, 2011
Dry stock of silica sol ceramic mould was prepared by using of colloidal moulding technique with an optimized vacuum drying process. Effect of roasting process on the shrinkage rate and compressive strength of zircon-silica sol ceramic mould, and the ...
Zhang Yeming, Zeng Ming, Hu Li
doaj  

Niobium‐Based Chalcogenides as Emerging Electrode Materials for Rechargeable Batteries

EcoEnergy, EarlyView.
This review highlights recent advances in Nb‐based TMCs, covering their structure‐property relationships, synthesis strategies, electrochemical mechanisms, and energy‐storage applications. Emerging approaches including defect engineering, operando characterization, DFT modeling, and AI‐assisted design are discussed to accelerate the development of high‐
Narasimharao Kitchamsetti, Ana L. F. de Barros, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Roasting optimization of robusta coffee beans and their effect on the antioxidant related compound [PDF]

BIO Web of Conferences
Coffee is known for its flavor and antioxidant effects. Roasting may change the characteristics of caffeic, chlorogenic, ferulic, and sinapic acids. While temperature and time are key factors affecting coffee’s aroma, flavor, and taste, airflow during ...
Prajna Deyla, Wagiman, Supartono Wahyu, Wikarta Jumeri M.   +3 more
doaj   +1 more source

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