Olivine-based slag from a HCFeMn pilot
by Sophie Graul, Tallinn University of Technology, Tallinn, Estonia and France
During a pyrometallurgy pilot, unusual slags were produced due to a composition that was too rich in calcium and silicon and the excessive presence of fluorine - due to the use of fluorite to fluidify the system.
This led to the formation of a viscous slag rich in massive olivines, stable at high temperatures (above 1300°C). The photo shows marked zonation between the magnesium-rich core (purple) and the manganese-rich rim (orange). Numerous Mn-sulphide dendrites can also be seen (yellow), as well as spinels (black).
Category
Location
- Europe (3778)
- Western Europe (766)
- France (179)
- Exact location (2.0005 E, 48.7676 N)
Tags
- olivine (6)
- microscopy (25)
- sulphides (7)
- mineralogy (45)
- scanning electronic microscope (2)
- thermodymanics (2)
- slag (1)
- pyrometallurgy (1)
- metallurgy (1)
Colours
Image properties
3508 × 2462 px;
image/png; 43.7 MB
Camera:
FEI Quanta 650F
Software: Photoshop
Taken in
2020
Submitted on 19 March 2024
Licence
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
Credit
Sophie Graul (distributed via imaggeo.egu.eu)
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