- Tytuł:
- Study of the Mechanochemical Reduction of Ilmenite Concentrate by Addition of Aluminum
- Autorzy:
-
Achimovičová, M.
Gock, E.
Turianicová, E.
Kostova, N.
Velinov, N.
Kaňuchová, M.
Baláž, P. - Powiązania:
- https://bibliotekanauki.pl/articles/1382742.pdf
- Data publikacji:
- 2014-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
77.84.Cg
81.20.Wk
81.20.Ev
82.33.Pt - Opis:
- Mechanochemical reduction of ilmenite concentrate $(FeTiO_{3})$ with elemental aluminum powder was performed by high-energy milling in an industrial eccentric vibratory ball mill ESM 656-0.5 ks (Siebtechnik, Germany). The mechanochemically reduced ilmenite with various times of milling was characterized by X-ray diffraction analysis, which confirmed the presence of the $Al_2O_3$ and $Fe_2Ti$ phases after 120 min of milling. Thermal analysis evidenced the completion of a mechanochemical reduction during milling. After 360 min of milling, the $Fe_2Ti$ phase decomposed to α-(Fe,Ti) alloy, which was proven by $\text{}^{57}Fe$ Mössbauer spectroscopy. X-ray photoelectron spectroscopy detected the amorphous TiO phase in product after mechanochemical reduction, which is in accordance with thermodynamic prediction. Decreasing of specific surface area after 60 min of milling resulted from growing layers of the solid products of $FeTiO_3$ mechanochemical reduction.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 4; 867-870
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł