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Interface behavior and oxidation consolidation mechanism of titanium-bearing iron sand particles with ball-milling pretreatment.

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Title: Interface behavior and oxidation consolidation mechanism of titanium-bearing iron sand particles with ball-milling pretreatment.
Authors: Zhao, Wei1 (AUTHOR), Yan, Bingji1 (AUTHOR), Li, Peng1 (AUTHOR), Chen, Dong1 (AUTHOR) chend@suda.edu.cn, Guo, Hongwei1 (AUTHOR), Liu, Zhenggen2 (AUTHOR), Chu, Mansheng1,2,3 (AUTHOR) chums@smm.neu.edu.cn
Source: Powder Technology. Jan2022:Part A, Vol. 396, p366-377. 12p.
Subjects: Iron powder, Crystal defects, Compressive strength, Iron, Sand, Ferric oxide
Abstract: The titanium-bearing iron sand (TIS) riches Fe, Ti and V elements and exhibits great value in ironmaking. The agglomeration of TIS is difficult due to complex mineralogical characteristics. In this study, the ball-milling pretreatment was conducted to improve the particle interface characteristics and promote the oxidation-consolidation behavior of TIS. The results show that the transition of TIS from spherical to polyhedral structure could disaggregate the interlocked gangue and iron oxide and produce large amounts powders adhering on the TIS surface, which promotes the interface behavior and increase the molten slag formation in oxidation-roasting. Besides, the introduced lattice defects of titanium hematite accelerate the oxidation and recrystallization behaviors, thereby strengthening consolidation and increasing the TIS pellet compressive strength with lowering bentonite addition. After ball-milling pretreatment and preparation parameters optimization, the TIS pellet exhibits favorable compressive strength, reducibility and softening-melting behavior, fully meeting the BF smelting requirements. [Display omitted] • Ball-milling pretreatment was proposed to strengthen the agglomeration of TIS. • The physical structure transition promotes interface behavior of TIS particles. • The lattice defects of titanium hematite promote TIS pellet oxidation consolidation. • The compressive strength of TIS pellet reaches 3700 N with 1.0 wt% bentonite addition. [ABSTRACT FROM AUTHOR]
Copyright of Powder Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 153900920
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Interface behavior and oxidation consolidation mechanism of titanium-bearing iron sand particles with ball-milling pretreatment.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Wei%22">Zhao, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Bingji%22">Yan, Bingji</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Peng%22">Li, Peng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Dong%22">Chen, Dong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chend@suda.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Hongwei%22">Guo, Hongwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zhenggen%22">Liu, Zhenggen</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chu%2C+Mansheng%22">Chu, Mansheng</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> chums@smm.neu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Powder+Technology%22">Powder Technology</searchLink>. Jan2022:Part A, Vol. 396, p366-377. 12p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Iron+powder%22">Iron powder</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+defects%22">Crystal defects</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Iron%22">Iron</searchLink><br /><searchLink fieldCode="DE" term="%22Sand%22">Sand</searchLink><br /><searchLink fieldCode="DE" term="%22Ferric+oxide%22">Ferric oxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The titanium-bearing iron sand (TIS) riches Fe, Ti and V elements and exhibits great value in ironmaking. The agglomeration of TIS is difficult due to complex mineralogical characteristics. In this study, the ball-milling pretreatment was conducted to improve the particle interface characteristics and promote the oxidation-consolidation behavior of TIS. The results show that the transition of TIS from spherical to polyhedral structure could disaggregate the interlocked gangue and iron oxide and produce large amounts powders adhering on the TIS surface, which promotes the interface behavior and increase the molten slag formation in oxidation-roasting. Besides, the introduced lattice defects of titanium hematite accelerate the oxidation and recrystallization behaviors, thereby strengthening consolidation and increasing the TIS pellet compressive strength with lowering bentonite addition. After ball-milling pretreatment and preparation parameters optimization, the TIS pellet exhibits favorable compressive strength, reducibility and softening-melting behavior, fully meeting the BF smelting requirements. [Display omitted] • Ball-milling pretreatment was proposed to strengthen the agglomeration of TIS. • The physical structure transition promotes interface behavior of TIS particles. • The lattice defects of titanium hematite promote TIS pellet oxidation consolidation. • The compressive strength of TIS pellet reaches 3700 N with 1.0 wt% bentonite addition. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Powder Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.powtec.2021.11.008
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 366
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      – SubjectFull: Iron powder
        Type: general
      – SubjectFull: Crystal defects
        Type: general
      – SubjectFull: Compressive strength
        Type: general
      – SubjectFull: Iron
        Type: general
      – SubjectFull: Sand
        Type: general
      – SubjectFull: Ferric oxide
        Type: general
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      – TitleFull: Interface behavior and oxidation consolidation mechanism of titanium-bearing iron sand particles with ball-milling pretreatment.
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            NameFull: Zhao, Wei
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            NameFull: Yan, Bingji
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            NameFull: Li, Peng
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            NameFull: Guo, Hongwei
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            NameFull: Liu, Zhenggen
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            – D: 10
              M: 01
              Text: Jan2022:Part A
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              Y: 2022
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              Value: 396
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