Results 21 to 30 of about 4,150 (196)

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

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

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

Lithium perrhenate catalyst for carbon aerogel-based supercapacitor

open access: yesSN Applied Sciences, 2020
Carbon aerogels are unique type of amorphous carbon-based materials with an extraordinary properties including light weight, well-developed and tailored pore structure, high specific surface area, low electrical resistivity and high purity.
Mateusz Ciszewski   +5 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

Comparison of phosphorus-based extractants on manganese separation from citrate leach solutions for recycling of lithium-ion batteries

open access: yesSouth African Journal of Science, 2023
The performance requirements of modern lithium-ion batteries (LIBs) necessitate the use of a number of scarce and strategically sensitive metals such as lithium and cobalt.
Tiaan Punt   +4 more
doaj   +1 more source

Advances in Hydrometallurgy

open access: yesMetals, 2019
The development of new technologies and the increasing demand of mineral resources from emerging countries are responsible for significant tensions in the price of non-ferrous metals [...]
Alexandre Chagnes
doaj   +1 more source

Dictionary‐based weak‐form training for noise‐robust series hybrid models with multiplicative unknowns

open access: yesAIChE Journal, EarlyView.
ABSTRACT Hybrid modeling combines first‐principles equations with a data‐driven subcomponent. Training for the data‐driven part is sensitive to measurement noise when training targets are constructed using pointwise time derivatives. Beyond differentiation errors, hybrid models involve solving an inverse problem to estimate the data‐driven term, which ...
Hangjun Cho   +4 more
wiley   +1 more source

Solubility and related properties in hydrometallurgy [PDF]

open access: yes, 2009
Thermodynamically consistent models based on accurately measured data are required for reliable predictions of equilibria and thermodynamic properties for a wide variety of multicomponent, multiphase systems and reactions relevant to hydrometallurgy ...
Hefter, G., Königsberger, E., May, P.M.
core   +1 more source

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