Effect of P_2O_5 Addition on the Rate of CO_2 Dissociation on the Surface of Fe_tO-base Molten Oxides
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概要
- 論文の詳細を見る
For clarification of the surface active effect of P2O5 in the reaction kinetics and mechanism of the various metallurgical processes, the effect of P2O5 addition on the reaction rate of CO2 dissociation on the surface of the FetO, FetO-CaO (mol%FetO : mol%CaO=6 : 4), FetO-SiO2 (mol%FetO : mol%SiO2=7 : 3), and FetO-CaO-SiO2 (mol%FetO=35, mol%CaO/mol%SiO2=1.13-1.27 and 1.36-1.47) melts was investigated at 1773 K with PCO2/PCO=1 by using isotope exchange technique. The rate constant decreased with increasing P2O5 content of melts and the residual rate constant was observed at high P2O5 content. However, the change of the Fe3+/Fe2+ ratio of molten oxide was not observed. Results were analyzed by using “site blockage model” of P2O5, and it was concluded that the rate controlling step of CO2 dissociation was the dissociation reaction of adsorbed CO2 molecule on the surface of molten oxides.
- 社団法人 日本鉄鋼協会の論文
- 2004-09-15
著者
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Tsukihashi Fumitaka
Graduate School of Frontier Sciences, The University of Tokyo
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Tsukihashi Fumitaka
Graduate School Of Frontier Sciences The University Of Tokyo
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Matsuura Hiroyuki
Center For Iron And Steelmaking Research Department Of Materials Science And Engineering Carnegie Me
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MATSUURA Hiroyuki
Graduate School of Frontier Sciences, The University of Tokyo
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ISHIDA Ikutora
Graduate School of Engineering, the University of Tokyo
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Matsuura Hiroyuki
Graduate School Of Frontier Sciences The University Of Tokyo
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Ishida Ikutora
Graduate School Of Engineering The University Of Tokyo
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Tsukihashi Fumitaka
Graduate School Of Frontier Science The University Of Tokyo
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