Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag

[Image: see text] FactSage simulation, X-ray diffraction (XRD), and scanning electron microscopy (SEM) coupled to energy-dispersive spectroscopy (EDS) analyses were performed to explore the combined influence of SiO(2) and O(2) on the crystallization behavior of modified Ti-bearing blast furnace sla...

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Autores principales: Han, Jiqing, Zhang, Jiahao, Zhang, Jing, Chen, Xiao, Zhang, Li, Tu, Ganfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178345/
https://www.ncbi.nlm.nih.gov/pubmed/32337425
http://dx.doi.org/10.1021/acsomega.0c00014
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author Han, Jiqing
Zhang, Jiahao
Zhang, Jing
Chen, Xiao
Zhang, Li
Tu, Ganfeng
author_facet Han, Jiqing
Zhang, Jiahao
Zhang, Jing
Chen, Xiao
Zhang, Li
Tu, Ganfeng
author_sort Han, Jiqing
collection PubMed
description [Image: see text] FactSage simulation, X-ray diffraction (XRD), and scanning electron microscopy (SEM) coupled to energy-dispersive spectroscopy (EDS) analyses were performed to explore the combined influence of SiO(2) and O(2) on the crystallization behavior of modified Ti-bearing blast furnace slag. The results of FactSage simulation showed that an increase in the added amount of SiO(2) was beneficial to the conversion of Ti-bearing minerals into simple titanium oxides. An increase in oxidation time was conducive to the transformation of low-valent titanium oxides to tetravalent titanium oxide. Therefore, Ti components were precipitated only in the form of rutile under the optimal added amount of SiO(2) (40 g) and the optimum oxidation time (126 s). The results of XRD and SEM analyses were well in agreement with the results of FactSage simulation. Moreover, the mechanism of formation of rutile and glassy phases was discussed.
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spelling pubmed-71783452020-04-24 Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag Han, Jiqing Zhang, Jiahao Zhang, Jing Chen, Xiao Zhang, Li Tu, Ganfeng ACS Omega [Image: see text] FactSage simulation, X-ray diffraction (XRD), and scanning electron microscopy (SEM) coupled to energy-dispersive spectroscopy (EDS) analyses were performed to explore the combined influence of SiO(2) and O(2) on the crystallization behavior of modified Ti-bearing blast furnace slag. The results of FactSage simulation showed that an increase in the added amount of SiO(2) was beneficial to the conversion of Ti-bearing minerals into simple titanium oxides. An increase in oxidation time was conducive to the transformation of low-valent titanium oxides to tetravalent titanium oxide. Therefore, Ti components were precipitated only in the form of rutile under the optimal added amount of SiO(2) (40 g) and the optimum oxidation time (126 s). The results of XRD and SEM analyses were well in agreement with the results of FactSage simulation. Moreover, the mechanism of formation of rutile and glassy phases was discussed. American Chemical Society 2020-04-06 /pmc/articles/PMC7178345/ /pubmed/32337425 http://dx.doi.org/10.1021/acsomega.0c00014 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Han, Jiqing
Zhang, Jiahao
Zhang, Jing
Chen, Xiao
Zhang, Li
Tu, Ganfeng
Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title_full Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title_fullStr Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title_full_unstemmed Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title_short Combined Effect of SiO(2) and O(2) on the Crystallization Behavior of Modified Ti-Bearing Blast Furnace Slag
title_sort combined effect of sio(2) and o(2) on the crystallization behavior of modified ti-bearing blast furnace slag
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178345/
https://www.ncbi.nlm.nih.gov/pubmed/32337425
http://dx.doi.org/10.1021/acsomega.0c00014
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