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- Title
High-Resolution Transmission Electron Microscopy Study of a Powder River Basin Coal-Derived Fly Ash.
- Authors
Hower, James C.; Berti, Debora; Winkler, Christopher R.; Qian, Dali; Briot, Nicolas J.
- Abstract
Examination of a fly ash derived from the combustion of a low-S, subbituminous Powder River Basin coal by Scanning Electron Microscopy (SEM) and High-resolution Transmission Electron Microscopy (HRTEM), both supplemented by Energy-dispersive X-ray spectroscopy (EDS), showed that the fly ashes were dominated by amorphous phases, Ca-rich plagioclase feldspars, Mg-rich phases, complex Ca-Mg-Al-Si-Ti-Fe grains, and trace amounts of REE-rich particles. Many of the particles were rimmed by a Ca-S, possibly a sulfate. HRTEM-EDS examination of a REE-rich particle proved it to be a mix of light- and heavy-rare earth minerals mixed with amorphous phases.
- Subjects
FLY ash; TRANSMISSION electron microscopy; WATERSHEDS; RARE earth metals; COAL basins; POWDERS
- Publication
Minerals (2075-163X), 2022, Vol 12, Issue 8, p975
- ISSN
2075-163X
- Publication type
Article
- DOI
10.3390/min12080975