Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe

Tanaka, Toshihiro; Ogiso, Yumi; Ueda, Mitsuru; Lee, Joonho

doi:info:doi/10.2355/isijinternational.50.1071

このアイテムのアクセス数:69件（2021-01-24 13:21 集計）

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タイトル	Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe
著者	Tanaka, Toshihiro Tanaka, Toshihiro
	Ogiso, Yumi Ogiso, Yumi
	Ueda, Mitsuru Ueda, Mitsuru
	Lee, Joonho Lee, Joonho
キーワード等	refining
	desulfurization
	capillary
	molten slag
抄録	In order to carry out the de-sulfurization of liquid Fe, solid CaO is usually used as a flux, but some of solid CaO particles are not melted into molten slag, and all CaO are not always used for the refining. We have investigated how to use the solid CaO directly and efficiently for the above refining processes. Solid CaO particles have small capillary tubes from their surface to inside. When a molten slag is wetted with solid CaO, the molten slag containing some impurities such as CaS and P_2O_5 is expected to penetrate into those capillary tubes. Although chemical reactions in solid phase are generally believed to be very slow due to slow diffusion in solid phase, those impurities are absorbed in solid CaO rapidly by capillary force and they are removed from molten steels. We named this refining process as Capillary Refining. In the present paper, we have tried to apply capillary refining to de-sulfurization of liquid Fe and carbon-saturated liquid Fe by using molten CaO–Al_2O_3 and CaO–SiO_2–MgO–Al_2O_3 slags.
公開者	日本鉄鋼協会
公開者の別表記	The Iron and Steel Institute of Japan
公開者 (ヨミ)	ニホン　テッコウ　キョウカイ
掲載誌名	ISIJ INternational
巻	50
号	8
開始ページ	1071
終了ページ	1077
刊行年月	2010
ISSN	09151559
NCID	AA10680712
DOI	info:doi/10.2355/isijinternational.50.1071
URL	http://hdl.handle.net/11094/26385
権利情報	© 2010 ISIJ
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	ISIJ INternational.50(8) P.1071-P.1077
DC.title	Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe
DC.creator	Tanaka, Toshihiro
	Ogiso, Yumi
	Ueda, Mitsuru
	Lee, Joonho
DC.publisher	日本鉄鋼協会
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2010
DC.identifier	info:doi/10.2355/isijinternational.50.1071
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/26385
DC.subject	refining
	desulfurization
	capillary
	molten slag
DCTERMS.abstract	In order to carry out the de-sulfurization of liquid Fe, solid CaO is usually used as a flux, but some of solid CaO particles are not melted into molten slag, and all CaO are not always used for the refining. We have investigated how to use the solid CaO directly and efficiently for the above refining processes. Solid CaO particles have small capillary tubes from their surface to inside. When a molten slag is wetted with solid CaO, the molten slag containing some impurities such as CaS and P_2O_5 is expected to penetrate into those capillary tubes. Although chemical reactions in solid phase are generally believed to be very slow due to slow diffusion in solid phase, those impurities are absorbed in solid CaO rapidly by capillary force and they are removed from molten steels. We named this refining process as Capillary Refining. In the present paper, we have tried to apply capillary refining to de-sulfurization of liquid Fe and carbon-saturated liquid Fe by using molten CaO–Al_2O_3 and CaO–SiO_2–MgO–Al_2O_3 slags.
DC.rights	© 2010 ISIJ
citation_title	Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe
citation_author	Tanaka, Toshihiro
	Ogiso, Yumi
	Ueda, Mitsuru
	Lee, Joonho
citation_publisher	日本鉄鋼協会
citation_language	英語
citation_date	2010
citation_journal_title	ISIJ INternational
citation_volume	50
citation_issue	8
citation_firstpage	1071
citation_lastpage	1077
citation_issn	09151559
citation_doi	info:doi/10.2355/isijinternational.50.1071
citation_public_url	http://hdl.handle.net/11094/26385
citation_keywords	refining
	desulfurization
	capillary
	molten slag

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