Artikel
Pre-processing of coal combustion fly ash by classification for enrichment of rare earth elements
Fly ash from the combustion of coal shows potential as a source of valuable metals like the rare earth elements (REEs). These are present in the fly ash at low concentrations. Thus, simple dry pre-processing methods that can produce REE-enriched fractions from the fly ash could improve the feasibility of subsequent extraction processes. The performed air classification experiments with a coal combustion fly ash showed a certain size dependence of the REE concentrations. In the different size fractions the REEs were enriched or depleted. Thereby, the different groups of REEs showed differences in their behavior. In the finest size fraction all REEs were enriched by a factor of 1.05 to 1.65. In contrast, in the coarsest size fraction and in the second finest size fraction all REEs were depleted (0.63 to 0.78 and 0.58 to 0.92). In the medium size fraction the concentrations were close to those in the fly ash and in the second largest size fraction the light REEs (La, Ce, Pr, Nd and Sm) were enriched by a factor of 1.19 to 1.35, while the concentrations of the other REEs were similar as in the fly ash. Thus, air classification shows some potential as a simple dry pre-processing step for the separation of REE-enriched fractions from the bulk of a coal fly ash.
- Sprache
-
Englisch
- Erschienen in
-
Journal: Energy Reports ; ISSN: 2352-4847 ; Volume: 4 ; Year: 2018 ; Pages: 660-663 ; Amsterdam: Elsevier
- Klassifikation
-
Wirtschaft
- Thema
-
Classification
Coal combustion
Fly ash
Particle size
Rare earth elements
- Ereignis
-
Geistige Schöpfung
- (wer)
-
Lanzerstorfer, Christof
- Ereignis
-
Veröffentlichung
- (wer)
-
Elsevier
- (wo)
-
Amsterdam
- (wann)
-
2018
- DOI
-
doi:10.1016/j.egyr.2018.10.010
- Handle
- Letzte Aktualisierung
-
10.03.2025, 11:42 MEZ
Datenpartner
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Objekttyp
- Artikel
Beteiligte
- Lanzerstorfer, Christof
- Elsevier
Entstanden
- 2018
Ähnliche Objekte (12)
Grate-Fired Biomass Combustion Plants Using Forest Residues as Fuel: Enrichment Factors for Components in the Fly Ash
Fly ash formation and deposition during pulverized fuel combustion : numerical and experimental investigations
Mechanically Treated Fly Ash from Fluidized Bed Combustion of Peat, Wood, and Wastes in Concrete
Shear strength behavior of organic soils treated with fly ash and fly ash-based geopolymer
Ash formation and ash properties in fluidized bed coal combustion
Effects of biomass combustion on the formation of fly ash and their utilization from suspension-fired boilers
Analysis of Changes in Thermomechanical Properties and Structure of Polyamide Modified with Fly Ash from Biomass Combustion
Recovery of metals and other beneficial products from coal fly ash: a sustainable approach for fly ash management
Residual and ecological risk assessment of heavy metals in fly ash from co-combustion of excess sludge and coal
Microstructure Characteristics of Fly Ash Concrete with Rice Husk Ash and Lime Stone Powder
Efficiency of rice husk ash and fly ash as reactivity materials in sustainable concrete
Technical and radiological characterisation of fly ash and bottom ash from thermal power plant
Grate-Fired Biomass Combustion Plants Using Forest Residues as Fuel: Enrichment Factors for Components in the Fly Ash
Fly ash formation and deposition during pulverized fuel combustion : numerical and experimental investigations
Mechanically Treated Fly Ash from Fluidized Bed Combustion of Peat, Wood, and Wastes in Concrete
Shear strength behavior of organic soils treated with fly ash and fly ash-based geopolymer
Ash formation and ash properties in fluidized bed coal combustion
Effects of biomass combustion on the formation of fly ash and their utilization from suspension-fired boilers
Analysis of Changes in Thermomechanical Properties and Structure of Polyamide Modified with Fly Ash from Biomass Combustion
Recovery of metals and other beneficial products from coal fly ash: a sustainable approach for fly ash management
Residual and ecological risk assessment of heavy metals in fly ash from co-combustion of excess sludge and coal
Microstructure Characteristics of Fly Ash Concrete with Rice Husk Ash and Lime Stone Powder
Efficiency of rice husk ash and fly ash as reactivity materials in sustainable concrete
Technical and radiological characterisation of fly ash and bottom ash from thermal power plant
Grate-Fired Biomass Combustion Plants Using Forest Residues as Fuel: Enrichment Factors for Components in the Fly Ash
Fly ash formation and deposition during pulverized fuel combustion : numerical and experimental investigations
Mechanically Treated Fly Ash from Fluidized Bed Combustion of Peat, Wood, and Wastes in Concrete
Shear strength behavior of organic soils treated with fly ash and fly ash-based geopolymer
Ash formation and ash properties in fluidized bed coal combustion
Effects of biomass combustion on the formation of fly ash and their utilization from suspension-fired boilers
Analysis of Changes in Thermomechanical Properties and Structure of Polyamide Modified with Fly Ash from Biomass Combustion
Recovery of metals and other beneficial products from coal fly ash: a sustainable approach for fly ash management
Residual and ecological risk assessment of heavy metals in fly ash from co-combustion of excess sludge and coal
Microstructure Characteristics of Fly Ash Concrete with Rice Husk Ash and Lime Stone Powder
Efficiency of rice husk ash and fly ash as reactivity materials in sustainable concrete