Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties

The sintering pot test was used to investigate the effect of MgO/Al2O3 ratio in the range of 1.2 to 2.2 on the sintering behavior of iron ore. The main characterization methods of X-ray diffraction (XRD) and scanning electron microscopyenergy disperse spectroscopy (SEM-EDS) were employed. The result...

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Main Authors: Ju J.-T., Tang C.-M., Pang Z.-G., Xing X. -D., Ji G.-H.
Format: Article
Language:English
Published: University of Belgrade, Technical Faculty, Bor 2021-01-01
Series:Journal of Mining and Metallurgy. Section B: Metallurgy
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000034J.pdf
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author Ju J.-T.
Tang C.-M.
Pang Z.-G.
Xing X. -D.
Ji G.-H.
author_facet Ju J.-T.
Tang C.-M.
Pang Z.-G.
Xing X. -D.
Ji G.-H.
author_sort Ju J.-T.
collection DOAJ
description The sintering pot test was used to investigate the effect of MgO/Al2O3 ratio in the range of 1.2 to 2.2 on the sintering behavior of iron ore. The main characterization methods of X-ray diffraction (XRD) and scanning electron microscopyenergy disperse spectroscopy (SEM-EDS) were employed. The results showed that the strength, yield, and reducibility of sinter initially increased and then decreased with increasing MgO/Al2O3 ratio from 1.2 to 2.2. The index would reach the peak value with the strength of 70.6% and the yield of 83.81%, respectively, when MgO/Al2O3 ratio was 1.8. The reduction index would reach the peak value of 88.54% with MgO/Al2O3 ratio of 1.6. The FeO content, solid fuel consumption, and the RDI+3.15 of sinter increased dramatically with increasing MgO/Al2O3 ratio. When MgO/Al2O3 ratio was up to 2.2, the solid fuel consumption and RDI+3.15 reached a maximum value of 61.93 kg/t and 96.1%, respectively. The form of SFCA was acicular when MgO/Al2O3 ratio was less than 1.6 and then transformed to plate-like which content also reduced. The magnetite increased while hematite decreased with enhancing MgO/Al2O3 ratio.
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id doaj-art-d9ebd4d77f01408ab93867d981c4dfc1
institution Kabale University
issn 1450-5339
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language English
publishDate 2021-01-01
publisher University of Belgrade, Technical Faculty, Bor
record_format Article
series Journal of Mining and Metallurgy. Section B: Metallurgy
spelling doaj-art-d9ebd4d77f01408ab93867d981c4dfc12025-02-02T22:40:56ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-01571213010.2298/JMMB200330034J1450-53392000034JEffect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical propertiesJu J.-T.0Tang C.-M.1Pang Z.-G.2Xing X. -D.3Ji G.-H.4School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China + Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi'an, Shaanxi, ChinaSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China + Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi'an, Shaanxi, ChinaSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China + Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi'an, Shaanxi, ChinaSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China + Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi'an, Shaanxi, ChinaSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China + Metallurgical Engineering Technology Research Center of Shaanxi Province, Xi'an, Shaanxi, ChinaThe sintering pot test was used to investigate the effect of MgO/Al2O3 ratio in the range of 1.2 to 2.2 on the sintering behavior of iron ore. The main characterization methods of X-ray diffraction (XRD) and scanning electron microscopyenergy disperse spectroscopy (SEM-EDS) were employed. The results showed that the strength, yield, and reducibility of sinter initially increased and then decreased with increasing MgO/Al2O3 ratio from 1.2 to 2.2. The index would reach the peak value with the strength of 70.6% and the yield of 83.81%, respectively, when MgO/Al2O3 ratio was 1.8. The reduction index would reach the peak value of 88.54% with MgO/Al2O3 ratio of 1.6. The FeO content, solid fuel consumption, and the RDI+3.15 of sinter increased dramatically with increasing MgO/Al2O3 ratio. When MgO/Al2O3 ratio was up to 2.2, the solid fuel consumption and RDI+3.15 reached a maximum value of 61.93 kg/t and 96.1%, respectively. The form of SFCA was acicular when MgO/Al2O3 ratio was less than 1.6 and then transformed to plate-like which content also reduced. The magnetite increased while hematite decreased with enhancing MgO/Al2O3 ratio.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000034J.pdfmgo/al2o3ratiosinteringstrengthmetallurgical properties
spellingShingle Ju J.-T.
Tang C.-M.
Pang Z.-G.
Xing X. -D.
Ji G.-H.
Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
Journal of Mining and Metallurgy. Section B: Metallurgy
mgo/al2o3ratio
sintering
strength
metallurgical properties
title Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
title_full Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
title_fullStr Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
title_full_unstemmed Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
title_short Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering behavior and metallurgical properties
title_sort effect of high mgo al2o3ratio 1 2 to 2 2 on sintering behavior and metallurgical properties
topic mgo/al2o3ratio
sintering
strength
metallurgical properties
url http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000034J.pdf
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AT xingxd effectofhighmgoal2o3ratio12to22onsinteringbehaviorandmetallurgicalproperties
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