Desiliconization Reaction of Pig Iron with MnO Containing Blast Furnace Slag under Pressurized and Coke-coexisting Condition
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- YAMAGATA Chisato
- Technical Research Laboratories, Sumitomo Metal Industries, Ltd.
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- KAJIWARA Yoshimasa
- Technical Research Laboratories, Sumitomo Metal Industries, Ltd.
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- SUYAMA Shinichi
- Technical Research Laboratories, Sumitomo Metal Industries, Ltd.
Bibliographic Information
- Other Title
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- コークス共存,加圧下におけるMnO含有高炉スラグによる脱珪反応
- コークス キョウソン カアツカ ニ オケル MnO ガンユウ コウロ スラグ
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Abstract
For the clarification of the mechanism of the desiliconization reaction by the MnO containing slag under pressurized and coke-coexisting condition of blast furnace, fundamental experiments were performed by the use of a pressurized high frequency furnace. Based on the experimental results, a mathematical simulation model with consideration of the direct reduction reaction as the coupled reaction was developed and applied to the quantitative evaluation of the desiliconization reaction by the MnO and FeO containing slag.<BR>The following knowledge was obtained.<BR>1) Under the existence of coke, MnO and FeO are partly consumed by the coupled reaction of direct reduction reaction and the desiliconization reaction is restrained.<BR>2) The increase of pressure, with the presence of coke, results in the indirect enhancement of the desiliconization reaction through the restraint of the direct reduction reaction.<BR>3) The effect of the charging of Mn ore on both the increase of Mn content and the decrease of Si content in pig iron was quantitatively evaluated by a simulation model for blast furnace hearth.
Journal
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- Tetsu-to-Hagane
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Tetsu-to-Hagane 73 (15), 1988-1995, 1987
The Iron and Steel Institute of Japan
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Details 詳細情報について
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- CRID
- 1390001205184429440
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- NII Article ID
- 110001491960
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- NII Book ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL BIB ID
- 3157546
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed