Results 41 to 50 of about 5,009 (173)

Pressure hydrometallurgy: A new chance to non-polluting processes

open access: yesVojnotehnički Glasnik, 2011
A wide spectrum of hydrometallurgical processes offers many promising approaches for industrial application in order to improve the environmental impact of conventional metals productions, or for replacing hydrometallurgical processes whose gas emissions
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Decarbonizing NdFeB sludge recycling: carbon footprint analysis of hydrometallurgy and calcium thermal reduction pathways

open access: yesChemical Engineering Journal. Green and Sustainable
Sintered NdFeB sludge represents a critical, high-abundance secondary resource whose effective recycling is imperative for the sustainable development of the rare earth industry. To clarify green recycling pathways, this study develops a comparative Life
Wei Fan   +10 more
doaj   +1 more source

Experimental Study on the Fine-Grained Uranium Tailings Reinforced by MICP

open access: yesAdvances in Civil Engineering, 2018
Sporosarcina Pasteurii was chosen for the experiment to study the effect and mechanism of fine-grained uranium tailings reinforced by MICP. The biochemical characteristics of strains and microbial immobilization in uranium tailings were analyzed.
Rong Gui   +4 more
doaj   +1 more source

Sustainable Reuse and Recycling of Spent Li‐Ion batteries from Electric Vehicles: Chemical, Environmental, and Economical Perspectives

open access: yesGlobal Challenges, 2023
The rapidly increasing adoption of electric vehicles (EVs) worldwide is causing high demand for production of lithium‐ion batteries (LIBs). Tremendous efforts have been made to develop different components of LIBs in addition to design of battery pack ...
Kanit Hantanasirisakul   +1 more
doaj   +1 more source

Separation of heavy metals from municipal solid waste incineration fly ash: A review

open access: yesEcotoxicology and Environmental Safety
More than 10 million tons of municipal solid waste incineration (MSWI) is discharged annually on the planet, which endangers ecosystem. Separation of heavy metals is a promising method for disposal of MSWI fly ash, which has been studied for decades ...
Hanlin Shen   +7 more
doaj   +1 more source

Hydrometallurgical Process and Economic Evaluation for Recovery of Zinc and Manganese from Spent Alkaline Batteries

open access: yesMetals, 2020
An innovative, efficient, and economically viable process for the recycling of spent alkaline batteries is presented herein. The developed process allows for the selective recovery of Zn and Mn metals present in alkaline batteries. The hydrometallurgical
Lan-Huong Tran   +4 more
doaj   +1 more source

Emergence of Bio-hydrometallurgy to Achieve Sustainable Process Development Goals in Extractive Metallurgy [PDF]

open access: yesE3S Web of Conferences
The stringent environmental regulations and growing awareness of the low-carbon economy are presenting immense challenges to metallurgical operations, one of the major sectors with high emissions.
Ilyas Sadia   +2 more
doaj   +1 more source

Development of Phosphate-Functionalized Magnetic Core–Shell Nanoadsorbent for Rare Earth Element Recovery from LCD Waste

open access: yesNanomaterials
This work describes the development of a core–shell magnetic nanoadsorbent (Fe3O4@TiO2) designed for the selective recovery of rare earth elements (REEs) from electronic waste.
Javiera Catriñir   +5 more
doaj   +1 more source

A Method of Fault Monitoring and Diagnosis for the Thickener in Hydrometallurgy

open access: yesIEEE Access, 2019
Hydrometallurgy is a metallurgical method for processing complex ores and low-grade ores while reducing environmental pollution. The density of the thickening process in hydrometallurgical production is rather poor, and there are many interference ...
Dong Xiao   +7 more
doaj   +1 more source

Selective Lithium Recovery from Spent Lithium Iron Phosphate Batteries Used in Solar Energy Storage

open access: yesBatteries
The growing adoption of lithium iron phosphate (LiFePO4, LFP) batteries in renewable energy storage systems is expected to generate substantial volumes of end-of-life batteries, presenting both waste-management challenges and opportunities for critical ...
Ndivhuwo Nyambeni   +3 more
doaj   +1 more source

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