Phase transitions during reducing roasting of a leucoxene concentrate with carbon
- Authors: Kop’ev D.Y.1, Anisonyan K.G.1, Goncharov K.V.1, Olyunina T.V.1, Sadykhov G.B.1
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Issue: Vol 2017, No 5 (2017)
- Pages: 357-361
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171474
- DOI: https://doi.org/10.1134/S0036029517050068
- ID: 171474
Cite item
Abstract
The phase transitions during the reducing roasting of a leucoxene concentrate with carbon are studied to obtain an anosovite product. Thermodynamic modeling of the reducing roasting is performed, and the influence of the temperature and the amount of a reducing agent on the reduction of rutile to Ti3O5-based anosovite is studied. Almost complete reduction of rutile to anosovite occurs in a temperature range of 1350–1400°C in the presence of 2.5–5.0% carbon. The Magnéli phases of various compositions are predominantly formed at lower temperatures and smaller amounts of the reducing agent. At temperatures higher than 1400°C and a reducing agent amount >2.5%, rutile reduction results in the formation of anosovite along with an undesirable titanium carbide phase.
About the authors
D. Yu. Kop’ev
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: kopievd@yandex.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
K. G. Anisonyan
Baikov Institute of Metallurgy and Materials Science
Email: kopievd@yandex.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
K. V. Goncharov
Baikov Institute of Metallurgy and Materials Science
Email: kopievd@yandex.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
T. V. Olyunina
Baikov Institute of Metallurgy and Materials Science
Email: kopievd@yandex.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
G. B. Sadykhov
Baikov Institute of Metallurgy and Materials Science
Email: kopievd@yandex.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991