Open Access
Metals, volume 9, issue 12, pages 1313
Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud
Zinoveev Dmitry
1
,
Grudinsky Pavel
1
,
Zakunov Andrey
1, 2
,
Semenov Artem
1
,
Panova Maria
1
,
Valeev Dmitry
3, 4
,
Kondratiev Alex
4
,
Dyubanov Valery
1
,
Petelin Alexander
2
Publication type: Journal Article
Publication date: 2019-12-06
Metals and Alloys
General Materials Science
Abstract
Red mud is a by-product of alumina production from bauxite ore by the Bayer method, which contains considerable amounts of valuable components such as iron, aluminum, titanium, and scandium. In this study, an approach was applied to extract iron, i.e., carbothermic reduction roasting of red mud with sodium and potassium carbonates followed by magnetic separation. The thermodynamic analysis of iron and iron-free components’ behavior during carbothermic reduction was carried out by HSC Chemistry 9.98 (Outotec, Pori, Finland) and FactSage 7.1 (Thermfact, Montreal, Canada; GTT-Technologies, Herzogenrath, Germany) software. The effects of the alkaline carbonates’ addition, as well as duration and temperature of roasting on the iron metallization degree, iron grains’ size, and magnetic separation process were investigated experimentally. The best conditions for the reduction roasting were found to be as follows: 22.01% of K2CO3 addition, 1250 °C, and 180 min of duration. As a generalization of the obtained data, the mechanism of alkaline carbonates’ influence on iron grain growth was proposed.
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Zinoveev D. et al. Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud // Metals. 2019. Vol. 9. No. 12. p. 1313.
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Zinoveev D., Grudinsky P., Zakunov A., Semenov A., Panova M., Valeev D., Kondratiev A., Dyubanov V., Petelin A. Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud // Metals. 2019. Vol. 9. No. 12. p. 1313.
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TY - JOUR
DO - 10.3390/met9121313
UR - https://doi.org/10.3390%2Fmet9121313
TI - Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud
T2 - Metals
AU - Zinoveev, Dmitry
AU - Zakunov, Andrey
AU - Semenov, Artem
AU - Dyubanov, Valery
AU - Petelin, Alexander
AU - Panova, Maria
AU - Kondratiev, Alex
AU - Grudinsky, Pavel
AU - Valeev, Dmitry
PY - 2019
DA - 2019/12/06 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 1313
IS - 12
VL - 9
SN - 2075-4701
ER -
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@article{2019_Zinoveev,
author = {Dmitry Zinoveev and Andrey Zakunov and Artem Semenov and Valery Dyubanov and Alexander Petelin and Maria Panova and Alex Kondratiev and Pavel Grudinsky and Dmitry Valeev},
title = {Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud},
journal = {Metals},
year = {2019},
volume = {9},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {dec},
url = {https://doi.org/10.3390%2Fmet9121313},
number = {12},
pages = {1313},
doi = {10.3390/met9121313}
}
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Zinoveev, Dmitry, et al. “Influence of Na2CO3 and K2CO3 Addition on Iron Grain Growth during Carbothermic Reduction of Red Mud.” Metals, vol. 9, no. 12, Dec. 2019, p. 1313. https://doi.org/10.3390%2Fmet9121313.