Reduction behavior of iron in the red mud

Red mud or bauxite residue contains significant quantities of industrial metals such as Fe, Al, and Ti, as well as rare earth elements such as Sc, Ce, and La. The authors performed a laboratory-scale project dealing with stepwise recovery of valuable elements from two bauxite residues, namely Irania...

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Autores principales:	Eray S., Keskinkilic E., Topkaya Y.A., Geveci A.
Formato:	article
Lenguaje:	EN
Publicado:	Technical Faculty, Bor 2021
Materias:	red mud iron solid-state reduction Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/5585022c72094e80a9ae538ec0b3c7dc
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spelling	oai:doaj.org-article:5585022c72094e80a9ae538ec0b3c7dc2021-11-22T11:04:01ZReduction behavior of iron in the red mud1450-53392217-717510.2298/JMMB210227039Ehttps://doaj.org/article/5585022c72094e80a9ae538ec0b3c7dc2021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100039E.pdfhttps://doaj.org/toc/1450-5339https://doaj.org/toc/2217-7175Red mud or bauxite residue contains significant quantities of industrial metals such as Fe, Al, and Ti, as well as rare earth elements such as Sc, Ce, and La. The authors performed a laboratory-scale project dealing with stepwise recovery of valuable elements from two bauxite residues, namely Iranian red mud (IRM) and Turkish red mud (TRM). The first stage involved the recovery of iron which was present in large quantities in red mud. Two different methods were investigated for this purpose: 1) solid state reduction followed by wet magnetic separation and 2) smelting. In the scope of this paper, some results of pyrometallurgical part of this project are presented. According to solid-state reduction experiments, it was found that more excess coal was needed for IRM (35%) than for TRM (15%) to maximize iron reduction. Temperature had significant effect on the reduction process and metallization increased from about 70% to about 95% when the temperature was raised from 1000 to 1200°C. Metallization degree was reported to be slightly higher for IRM (96.2%) than for TRM (94.1%). The results demonstrated that a high degree of iron metallization can be achieved regardless of the chemical and mineralogical composition of the bauxite residue sample.Eray S.Keskinkilic E.Topkaya Y.A.Geveci A.Technical Faculty, Borarticlered mudironsolid-state reductionMining engineering. MetallurgyTN1-997ENJournal of Mining and Metallurgy. Section B: Metallurgy, Vol 57, Iss 3, Pp 431-437 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	red mud iron solid-state reduction Mining engineering. Metallurgy TN1-997
spellingShingle	red mud iron solid-state reduction Mining engineering. Metallurgy TN1-997 Eray S. Keskinkilic E. Topkaya Y.A. Geveci A. Reduction behavior of iron in the red mud
description	Red mud or bauxite residue contains significant quantities of industrial metals such as Fe, Al, and Ti, as well as rare earth elements such as Sc, Ce, and La. The authors performed a laboratory-scale project dealing with stepwise recovery of valuable elements from two bauxite residues, namely Iranian red mud (IRM) and Turkish red mud (TRM). The first stage involved the recovery of iron which was present in large quantities in red mud. Two different methods were investigated for this purpose: 1) solid state reduction followed by wet magnetic separation and 2) smelting. In the scope of this paper, some results of pyrometallurgical part of this project are presented. According to solid-state reduction experiments, it was found that more excess coal was needed for IRM (35%) than for TRM (15%) to maximize iron reduction. Temperature had significant effect on the reduction process and metallization increased from about 70% to about 95% when the temperature was raised from 1000 to 1200°C. Metallization degree was reported to be slightly higher for IRM (96.2%) than for TRM (94.1%). The results demonstrated that a high degree of iron metallization can be achieved regardless of the chemical and mineralogical composition of the bauxite residue sample.
format	article
author	Eray S. Keskinkilic E. Topkaya Y.A. Geveci A.
author_facet	Eray S. Keskinkilic E. Topkaya Y.A. Geveci A.
author_sort	Eray S.
title	Reduction behavior of iron in the red mud
title_short	Reduction behavior of iron in the red mud
title_full	Reduction behavior of iron in the red mud
title_fullStr	Reduction behavior of iron in the red mud
title_full_unstemmed	Reduction behavior of iron in the red mud
title_sort	reduction behavior of iron in the red mud
publisher	Technical Faculty, Bor
publishDate	2021
url	https://doaj.org/article/5585022c72094e80a9ae538ec0b3c7dc
work_keys_str_mv	AT erays reductionbehaviorofironintheredmud AT keskinkilice reductionbehaviorofironintheredmud AT topkayaya reductionbehaviorofironintheredmud AT gevecia reductionbehaviorofironintheredmud
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Reduction behavior of iron in the red mud

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