Results 21 to 30 of about 1,632 (176)

Rhenium(VII) Compounds as Inorganic Precursors for the Synthesis of Organic Reaction Catalysts

open access: yesMolecules, 2019
Rhenium is an element that exhibits a broad range of oxidation states. Synthesis paths of selected rhenium compounds in its seventh oxidation state, which are common precursors for organic reaction catalysts, were presented in this paper.
Katarzyna Leszczyńska-Sejda   +9 more
doaj   +1 more source

Recovery of sodium from alumina-extracted fly ash using concentrated sodium carbonate solution [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2018
A novel method for the recovery of sodium from alumina-extracted fly ash (AEFA) using concentrated Na2CO3 solution is presented. Sodium was efficiently extracted from AEFA, which was mainly composed of NaCaHSiO4.
Wang Z.   +4 more
doaj   +1 more source

Advances in Mineral Processing and Hydrometallurgy

open access: yesMetals, 2021
A Special Issue of Metals was commissioned that was devoted to aspects of Mineral Processing and Hydrometallurgy [...]
Corby G. Anderson, Hao Cui
doaj   +1 more source

Leaching of Metals from Spent Lithium-Ion Batteries

open access: yesRecycling, 2017
The recycling of valuable metals from spent lithium-ion batteries (LIBs) is becoming increasingly important due to the depletion of natural resources and potential pollution from the spent batteries.
Miamari Aaltonen   +3 more
doaj   +1 more source

Circular Recycling Strategies for LFP Batteries: A Review Focusing on Hydrometallurgy Sustainable Processing

open access: yesMetals, 2023
The exponential growth of electric and hybrid vehicles in the last five years forecasts a waste problem when their batteries achieve end-of-life. Li-ion batteries for vehicles have been assembled using materials from natural resources (as Li, Fe, Al, Cu ...
David da Silva Vasconcelos   +3 more
doaj   +1 more source

Sensing Organophosphorus Compounds with SWCNT Films

open access: yesSensors, 2021
Promising electrical properties of single-walled carbon nanotubes (SWCNTs) open a spectrum of applications for this material. As the SWCNT electronic characteristics respond well to the presence of various analytes, this makes them highly sensitive ...
Mika Sahlman   +2 more
doaj   +1 more source

Material Flow Analysis of Lithium-Ion Battery Recycling in Europe: Environmental and Economic Implications

open access: yesBatteries, 2023
This study aimed at a quantitative analysis of the material flows associated with End of Life (EoL) lithium-ion batteries’ (LIBs) materials in Europe. The European electric vehicles fleet in 2020 was taken as a case study, assuming a 10-year lifetime for
Martina Bruno, Silvia Fiore
doaj   +1 more source

Bioleaching of Chalcopyrite-bornite and Chalcopyrite-pyrite Mixed Ores in The Presence of Moderately Thermophilic Microorganisms

open access: yesInternational Journal of Electrochemical Science, 2017
In this work, bioleaching of chalcopyrite-pyrite and chalcopyrite-bornite mixed ores in the presence of moderately thermophilic microorganisms (A.caldus, L.ferriphilum and mixed culture) were carried out.
Yulin Huang   +9 more
doaj   +1 more source

REVIEW OF THE IRON RECOVERY PROCESSES FROM LADEN LEACH LIQUORS IN HYDROMETALLURGY [PDF]

open access: yesSustainable Extraction and Processing of Raw Materials Journal, 2020
. Iron is usually present in higher concentrations in the laden solutions and its removal and elimination to a stable phase is a severe problem in hydrometallurgy. This article analyses and compares the processes of solvent extraction and ion exchange as
Plamen Georgiev   +4 more
doaj   +1 more source

The Effect of the Redox Potential of Aqua Regia and Temperature on the Au, Cu, and Fe Dissolution from WPCBs

open access: yesRecycling, 2017
Constant growth in waste electrical and electronic equipment (WEEE) levels necessitates the development of new, commercially viable recycling processes.
Heini Elomaa   +6 more
doaj   +1 more source

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