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- Sobandi AHMAD
- Graduate Student, Division of Chemical and Materials Engineering, Muroran Institute of Technology
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- Katayama Hiroshi G.
- Department of Materials Science and Engineering, Muroran Institute of Technology
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- Momono Tadashi
- Department of Materials Science and Engineering, Muroran Institute of Technology
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The oxidation-reduction equilibrium of manganese in the CaO-MntO-SiO2(-MgO-Al2O3) slag system has been investigated as functions of slag composition, oxygen partial pressure and temperature. <br> In the range of oxygen partial pressure of 3.04 to 21.28 kPa and temperature of 1573 to 1673 K, the (%Mn3+)/(%Mn2+) ratio was determined and expressed by the following equation:<br><br>log(%Mn3+)/(%Mn2+)=0.86{(%CaO)+(%MgO)+0.436(%MntO)+0.126 (%Al2O3)}/(%SiO2)+0.22 logPO<sub>2</sub>(Pa)+2860/T-4.44<br><br> The value of standard enthalpy change for the oxidation of Mn2+ to Mn3+ was determined to be -55 kJ/mol. The manganite capacity, CMnO<sub>x</sub>, has also been arranged as a function of slag composition and temperature. Furthermore, on the basis of the present experimental data, the values of optical basicity of component oxides were estimated and compared with those reported by the other investigators.
収録刊行物
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- ISIJ International
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ISIJ International 38 (1), 9-15, 1998
一般社団法人 日本鉄鋼協会
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詳細情報
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- CRID
- 1390282681428100864
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- NII論文ID
- 10002458153
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- NII書誌ID
- AA10680712
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- COI
- 1:CAS:528:DyaK1cXhslerurY%3D
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- ISSN
- 13475460
- 09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可