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Advances in Understanding of Unit Operations in Non-ferrous Extractive Metallurgy 2021



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Autore: Stopic Srecko Visualizza persona
Titolo: Advances in Understanding of Unit Operations in Non-ferrous Extractive Metallurgy 2021 Visualizza cluster
Pubblicazione: Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022
Descrizione fisica: 1 electronic resource (266 p.)
Soggetto topico: Technology: general issues
History of engineering & technology
Mining technology & engineering
Soggetto non controllato: zirconium
eudialyte
hydrometallurgy
basic sulfate precipitation
macroporous polymer
goethite
factorial design
desorption
tailings reprocessing
early stage cost estimation
magnetic separation
leaching
flotation
silica
ultrasonic spray pyrolysis
synthesis
acid mine drainage
red mud
neutralization
immobilization
precipitation
nitinol
continuous vertical cast (CVC), NiTi rod
atomic layer deposition
corrosion properties
potentiodynamic test
electrochemical impedance spectroscopy
rare earth elements
recycling
NdFeB
magnet
non-ferrous metals
cavitation erosion
optical microscopy
electron microscopy
atomic force microscopy
aluminium
thin-layer electrolysis
molten salts
halides
capillary cell
electrorefining
non-commercial copper anode
waste solution
high content
Ni
Pb
Sn
Sb
passivation
anode slime
pentlandite
oxidation
reaction mechanism
phase analysis
silver
copper
nanoparticles
antibacterial
MnO2
cobalt oxide Co3O4
perovskite materials
oxygen reduction in alkaline media
electrocatalyst
Pt catalyst
nanocomposite
mixed oxides
NiAl2O4
ZnAl2O4
electrocatalysis
nanocatalyst
noble metal nanoparticles
leachate
metal ions extraction
selectivity
Fe removal
electrodeposition
conductometry
Persona (resp. second.): FriedrichBernd
StopicSrecko
Sommario/riassunto: Unit metallurgical operations processes are usually separated into three categories: 1) hydrometallurgy (leaching, mixing, neutralization, precipitation, cementation, and crystallization); 2) pyrometallurgy (roasting and smelting); and 3) electrometallurgy (aqueous electrolysis and molten salt electrolysis). In hydrometallurgy, the aimed metal is first transferred from ores and concentrates to a solution using a selective dissolution (leaching or dry digestion) under an atmospheric pressure below 100 °C and under a high pressure (40-50 bar) and high temperature (below 270°C) in an autoclave. The purification of the obtained solution was performed using neutralization agents such as sodium hydroxide and calcium carbonate or more selective precipitation agents such as sodium carbonate and oxalic acid. The separation of metals is possible using a liquid/liquid process (solvent extraction in mixer-settler) and solid–liquid (filtration in filter-press under high pressure). Crystallization is the process by which a metallic compound is converted from a liquid into a solid crystalline state via a supersaturated solution. The final step is metal production using electrochemical methods (aqueous electrolysis for basic metals such as copper, zinc, silver, and molten salt electrolysis for rare earth elements and aluminum). Advanced processes, such as ultrasonic spray pyrolysis and microwave-assisted leaching, can be combined with reduction processes in order to produce metallic powders.
Titolo autorizzato: Advances in Understanding of Unit Operations in Non-ferrous Extractive Metallurgy 2021  Visualizza cluster
Formato: Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione: Inglese
Record Nr.: 9910585936703321
Lo trovi qui: Univ. Federico II
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