THERMODYNAMIC STUDY ON THE Sn REMOVAL FROM MOLTEN STEEL BY CaO-SiO2-Al2O3 SLAG.
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| Title: | THERMODYNAMIC STUDY ON THE Sn REMOVAL FROM MOLTEN STEEL BY CaO-SiO |
|---|---|
| Authors: | HAI, Y.-H.1,2, ZHANG, X.1,2 zx91@wust.edu.cn, MA, G.-J.1,2, ZHENG, D.-L.2,3, XU, J.2,3, LIU, M.-K.1,2 liumengke@wust.edu.cn |
| Source: | Archives of Metallurgy & Materials. 2025, Vol. 70 Issue 1, p311-316. 6p. |
| Subjects: | Raw materials, Scrap materials, Thermodynamics, Steel, Steel manufacture |
| Abstract: | The utilization of raw materials such as steel scrap in the steelmaking process might introduce the impurity element Sn, which significantly deteriorates the steel's performance. Therefore, it is necessary to fully understand the mechanism of removing the residual element Sn from the molten steel. This study performed a thermodynamic calculation and investigation of residual element Sn removal in molten steel using the CaO-SiO2-Al2O3 slag. The results show that when the dissolved O content in the molten steel is greater than 0.0005% and the Sn content is less than 0.254%, it is difficult to remove Sn from the molten steel using the CaO-SiO2-Al2O3 slag alone, without incorporating other Sn removal methods. Molten slag can only help remove Sn from molten steel by adsorbing the Sn removal products. When the contents of CaO, SiO2, and Al2O3 are 20~40 wt.%, increasing the SiO2 content of the CaO-SiO2-Al2O3 slag enhances the slag's ability to absorb Sn removal products. However, as the content of Al2O3 or CaO in the slag increases, the slag's Sn capacity decreases dramatically. When the CaO/Al2O3 ratio in the slag is 1 and the SiO2 content is 40%, the Sn capacity reaches a maximum of 2.13×10-7. When the CaO/SiO2 ratio in the slag is 1 and the Al2O3 content is 20%, the Sn capacity reaches a maximum of 1.43×10-7. Meanwhile, when the SiO2/Al2O3 ratio in the slag is 1 and the CaO content is 20%, the Sn capacity reaches its maximum of 4.15×10-7. [ABSTRACT FROM AUTHOR] |
| Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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: 184513740 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: THERMODYNAMIC STUDY ON THE Sn REMOVAL FROM MOLTEN STEEL BY CaO-SiO<subscript>2</subscript>-Al<subscript>2</subscript>O<subscript>3</subscript> SLAG. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22HAI%2C+Y%2E-H%2E%22">HAI, Y.-H.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22ZHANG%2C+X%2E%22">ZHANG, X.</searchLink><relatesTo>1,2</relatesTo><i> zx91@wust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22MA%2C+G%2E-J%2E%22">MA, G.-J.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22ZHENG%2C+D%2E-L%2E%22">ZHENG, D.-L.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22XU%2C+J%2E%22">XU, J.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22LIU%2C+M%2E-K%2E%22">LIU, M.-K.</searchLink><relatesTo>1,2</relatesTo><i> liumengke@wust.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Archives+of+Metallurgy+%26+Materials%22">Archives of Metallurgy & Materials</searchLink>. 2025, Vol. 70 Issue 1, p311-316. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Raw+materials%22">Raw materials</searchLink><br /><searchLink fieldCode="DE" term="%22Scrap+materials%22">Scrap materials</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+manufacture%22">Steel manufacture</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The utilization of raw materials such as steel scrap in the steelmaking process might introduce the impurity element Sn, which significantly deteriorates the steel's performance. Therefore, it is necessary to fully understand the mechanism of removing the residual element Sn from the molten steel. This study performed a thermodynamic calculation and investigation of residual element Sn removal in molten steel using the CaO-SiO2-Al2O3 slag. The results show that when the dissolved O content in the molten steel is greater than 0.0005% and the Sn content is less than 0.254%, it is difficult to remove Sn from the molten steel using the CaO-SiO2-Al2O3 slag alone, without incorporating other Sn removal methods. Molten slag can only help remove Sn from molten steel by adsorbing the Sn removal products. When the contents of CaO, SiO2, and Al2O3 are 20~40 wt.%, increasing the SiO2 content of the CaO-SiO2-Al2O3 slag enhances the slag's ability to absorb Sn removal products. However, as the content of Al2O3 or CaO in the slag increases, the slag's Sn capacity decreases dramatically. When the CaO/Al2O3 ratio in the slag is 1 and the SiO2 content is 40%, the Sn capacity reaches a maximum of 2.13×10-7. When the CaO/SiO2 ratio in the slag is 1 and the Al2O3 content is 20%, the Sn capacity reaches a maximum of 1.43×10-7. Meanwhile, when the SiO2/Al2O3 ratio in the slag is 1 and the CaO content is 20%, the Sn capacity reaches its maximum of 4.15×10-7. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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: BibEntity: Identifiers: – Type: doi Value: 10.24425/amm.2025.152547 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 311 Subjects: – SubjectFull: Raw materials Type: general – SubjectFull: Scrap materials Type: general – SubjectFull: Thermodynamics Type: general – SubjectFull: Steel Type: general – SubjectFull: Steel manufacture Type: general Titles: – TitleFull: THERMODYNAMIC STUDY ON THE Sn REMOVAL FROM MOLTEN STEEL BY CaO-SiO2-Al2O3 SLAG. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: HAI, Y.-H. – PersonEntity: Name: NameFull: ZHANG, X. – PersonEntity: Name: NameFull: MA, G.-J. – PersonEntity: Name: NameFull: ZHENG, D.-L. – PersonEntity: Name: NameFull: XU, J. – PersonEntity: Name: NameFull: LIU, M.-K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 17333490 Numbering: – Type: volume Value: 70 – Type: issue Value: 1 Titles: – TitleFull: Archives of Metallurgy & Materials Type: main |
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