Dephosphorization mechanism and phase change in the reduction of converter slag

In the steelmaking process, the remained converter slag with P-containing materials is harmful to the molten steel in the next furnace. By the slag-splashing process with air blowing, P in the molten slag can be reduced and separated from the slag in the form of gas. In this paper, the reduction exp...

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Autores principales:	Xue Yuekai, Tian Peng, Li Chenxiao, Zhou Chaogang, Zhao Dingguo, Wang Shuhuan
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	steelmaking converter slag gasification dephosphorization ore phase Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248
Acceso en línea:	https://doaj.org/article/3b1521dc0862402aba4605b8dc24c3ab
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spelling	oai:doaj.org-article:3b1521dc0862402aba4605b8dc24c3ab2021-12-05T14:10:50ZDephosphorization mechanism and phase change in the reduction of converter slag2191-032410.1515/htmp-2020-0058https://doaj.org/article/3b1521dc0862402aba4605b8dc24c3ab2021-07-01T00:00:00Zhttps://doi.org/10.1515/htmp-2020-0058https://doaj.org/toc/2191-0324In the steelmaking process, the remained converter slag with P-containing materials is harmful to the molten steel in the next furnace. By the slag-splashing process with air blowing, P in the molten slag can be reduced and separated from the slag in the form of gas. In this paper, the reduction experiments of converter slag were carried out by flowing N2 at high temperatures, and the P-containing gas formed in this process was cooled and collected in water. It is found that the P gas was mainly composed of P2, which matched well with the results predicted by the FactSage7.2 calculation. The reaction mechanism of gasification dephosphorization in molten slag was analyzed, which was mainly proceeded on the surface of the slag. SEM-EDS and XRD were used to detect and characterize the samples. The ore phase of the converter slag and the gasification dephosphorization slag was determined, and the phase change was analyzed and compared.Xue YuekaiTian PengLi ChenxiaoZhou ChaogangZhao DingguoWang ShuhuanDe Gruyterarticlesteelmakingconverter slaggasification dephosphorizationore phaseTechnologyTChemical technologyTP1-1185Chemicals: Manufacture, use, etc.TP200-248ENHigh Temperature Materials and Processes, Vol 40, Iss 1, Pp 253-264 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	steelmaking converter slag gasification dephosphorization ore phase Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248
spellingShingle	steelmaking converter slag gasification dephosphorization ore phase Technology T Chemical technology TP1-1185 Chemicals: Manufacture, use, etc. TP200-248 Xue Yuekai Tian Peng Li Chenxiao Zhou Chaogang Zhao Dingguo Wang Shuhuan Dephosphorization mechanism and phase change in the reduction of converter slag
description	In the steelmaking process, the remained converter slag with P-containing materials is harmful to the molten steel in the next furnace. By the slag-splashing process with air blowing, P in the molten slag can be reduced and separated from the slag in the form of gas. In this paper, the reduction experiments of converter slag were carried out by flowing N2 at high temperatures, and the P-containing gas formed in this process was cooled and collected in water. It is found that the P gas was mainly composed of P2, which matched well with the results predicted by the FactSage7.2 calculation. The reaction mechanism of gasification dephosphorization in molten slag was analyzed, which was mainly proceeded on the surface of the slag. SEM-EDS and XRD were used to detect and characterize the samples. The ore phase of the converter slag and the gasification dephosphorization slag was determined, and the phase change was analyzed and compared.
format	article
author	Xue Yuekai Tian Peng Li Chenxiao Zhou Chaogang Zhao Dingguo Wang Shuhuan
author_facet	Xue Yuekai Tian Peng Li Chenxiao Zhou Chaogang Zhao Dingguo Wang Shuhuan
author_sort	Xue Yuekai
title	Dephosphorization mechanism and phase change in the reduction of converter slag
title_short	Dephosphorization mechanism and phase change in the reduction of converter slag
title_full	Dephosphorization mechanism and phase change in the reduction of converter slag
title_fullStr	Dephosphorization mechanism and phase change in the reduction of converter slag
title_full_unstemmed	Dephosphorization mechanism and phase change in the reduction of converter slag
title_sort	dephosphorization mechanism and phase change in the reduction of converter slag
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/3b1521dc0862402aba4605b8dc24c3ab
work_keys_str_mv	AT xueyuekai dephosphorizationmechanismandphasechangeinthereductionofconverterslag AT tianpeng dephosphorizationmechanismandphasechangeinthereductionofconverterslag AT lichenxiao dephosphorizationmechanismandphasechangeinthereductionofconverterslag AT zhouchaogang dephosphorizationmechanismandphasechangeinthereductionofconverterslag AT zhaodingguo dephosphorizationmechanismandphasechangeinthereductionofconverterslag AT wangshuhuan dephosphorizationmechanismandphasechangeinthereductionofconverterslag
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Dephosphorization mechanism and phase change in the reduction of converter slag

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