Application of Capillarity of Solid CaO to Dephosphorization of Hot Metals

Tanaka, Toshihiro; Hara, Shigeta; Oguni, Ryosuke; Ueda, Kazunori; Marukawa, Katsukiyo

doi:info:doi/10.2355/isijinternational.41.Suppl_S70

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タイトル	Application of Capillarity of Solid CaO to Dephosphorization of Hot Metals
著者	Tanaka, Toshihiro Tanaka, Toshihiro
	Hara, Shigeta Hara, Shigeta
	Oguni, Ryosuke Oguni, Ryosuke
	Ueda, Kazunori Ueda, Kazunori
	Marukawa, Katsukiyo Marukawa, Katsukiyo
キーワード等	Fe-C-P alloy
	penetration
	molten slag
	capillary phenomena
	4CaOP_20_5
内容	Supplemet
抄録	The penetration behavior of molten slag in solid CaO has been observed when liquid iron alloy containing phosphorus was oxidized by air or oxygen in CaO crucible. It was found from the present experiment that the phosphate was absorbed in the porosities of solid CaO accompanying the penetration of molten FeO slag when the carbon-saturated liquid iron alloy was oxidized at localized position. The phosphate is found to be fixed as 4CaOP_2O_5 from X-ray diffraction. Since the penetration can be evaluated theoretically to proceed much faster than the penetration rate obtained from the experimental results, the oxidation process of liquid iron alloy is considered to be the rate-determining step for the total reaction rate of the dephosphorization process using the capillarity of solid CaO. The application of the capillary phenomena to the dephosphorization of hot metal by solid CaO may be one of the useful engineering processes although the adequate oxidation procedures have to be considered.
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	41
開始ページ	S70
終了ページ	S72
刊行年月	2001
ISSN	09151559
NCID	AA10680712
DOI (出版社版)	info:doi/10.2355/isijinternational.41.Suppl_S70
URL	http://hdl.handle.net/11094/26401
権利情報	© 2001 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.41 P.S70-P.S72
DC.title	Application of Capillarity of Solid CaO to Dephosphorization of Hot Metals
DC.creator	Tanaka, Toshihiro
	Hara, Shigeta
	Oguni, Ryosuke
	Ueda, Kazunori
	Marukawa, Katsukiyo
DC.publisher	日本鉄鋼協会
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2001
DC.identifier	info:doi/10.2355/isijinternational.41.Suppl_S70
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/26401
DC.subject	Fe-C-P alloy
	penetration
	molten slag
	capillary phenomena
	4CaOP_20_5
DC.description	Supplemet
DCTERMS.abstract	The penetration behavior of molten slag in solid CaO has been observed when liquid iron alloy containing phosphorus was oxidized by air or oxygen in CaO crucible. It was found from the present experiment that the phosphate was absorbed in the porosities of solid CaO accompanying the penetration of molten FeO slag when the carbon-saturated liquid iron alloy was oxidized at localized position. The phosphate is found to be fixed as 4CaOP_2O_5 from X-ray diffraction. Since the penetration can be evaluated theoretically to proceed much faster than the penetration rate obtained from the experimental results, the oxidation process of liquid iron alloy is considered to be the rate-determining step for the total reaction rate of the dephosphorization process using the capillarity of solid CaO. The application of the capillary phenomena to the dephosphorization of hot metal by solid CaO may be one of the useful engineering processes although the adequate oxidation procedures have to be considered.
DC.rights	© 2001 ISIJ
citation_title	Application of Capillarity of Solid CaO to Dephosphorization of Hot Metals
citation_author	Tanaka, Toshihiro
	Hara, Shigeta
	Oguni, Ryosuke
	Ueda, Kazunori
	Marukawa, Katsukiyo
citation_publisher	日本鉄鋼協会
citation_language	英語
citation_date	2001
citation_journal_title	ISIJ International
citation_volume	41
citation_firstpage	S70
citation_lastpage	S72
citation_issn	09151559
citation_doi	info:doi/10.2355/isijinternational.41.Suppl_S70
citation_public_url	http://hdl.handle.net/11094/26401
citation_keywords	Fe-C-P alloy
	penetration
	molten slag
	capillary phenomena
	4CaOP_20_5

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