Al<SUB>2</SUB>O<SUB>3</SUB>, CaO, MgOを含むウスタイト, マグネタイト, ヘマタイトの還元速度について
書誌事項
- タイトル別名
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- On the Rate of the Reduction of Wustite, Magnetite, and Hematite Containing Al<SUB>2</SUB>O<SUB>3</SUB>, CaO, and MgO
- Al2O3,CaO,MgOを含むウスタイト,マグネタイト,ヘマタイトの還元速度について
- Al2O3 CaO MgO オ フクム ウスタイト マグネタイト ヘマタイト
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抄録
The effects of some foreign oxides on the rate limiting step of the reduction of pellets from wustite to metallic iron and the values of rate parameters are studied.<BR>It is confirmed that the reduction behavior of those pellets is represented by an unreacted core model or an uniform reaction model depending on the kinds of foreign oxides and iron oxides as starting materials. The mixed rate control equation of mass transfer in the gas phase, intraparticle gas diffusion, and chemical reaction can be applied to any iron oxide containing CaO and hematite and magnetite containing Al2O3. On the other hand, the reduction rate of the pure iron oxides, wustite containing Al2O3 and any iron oxides containing MgO is controlled by the oxygen diffusion in the metallic iron shell.<BR>These results are suggested by the conclusion of our previous studies that wustite grains are reduced nontopochemically and pellets are reduced topochemically when those complex oxides consisting of iron oxides and any foreign oxide precipitate in wustite during reduction.
収録刊行物
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- 鉄と鋼
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鉄と鋼 65 (12), 1692-1701, 1979
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680130662016
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- NII論文ID
- 110001487872
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
- http://id.crossref.org/issn/00211575
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- NDL書誌ID
- 2066560
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可