Measurement of the Activity Coefficients of P and Mn in Carbon-Saturated Fe-P-Mn-C Alloy

Dong Jun Shin; Xu Gao; Shigeru Ueda; Shin ya Kitamura

doi:10.1007/s11663-019-01520-4

Measurement of the Activity Coefficients of P and Mn in Carbon-Saturated Fe-P-Mn-C Alloy

Dong Jun Shin, Xu Gao, Shigeru Ueda, Shin ya Kitamura

Center for Mineral Processing and Metallurgy (CMPM)

Research output: Contribution to journal › Article

Abstract

The thermodynamic properties of the Fe-P-Mn-C(sat.) alloy, which is obtained following the reduction of steelmaking slag or manganese ore, are not adequately clarified. Thus, the current study involved measuring the activity coefficients of both Mn and P in the alloy system. The Fe-P-Mn-C (sat.) alloy (2.5 to 15.2 mass pct of P and 2.9 to 12.8 mass pct of Mn) was equilibrated with Ag in a graphite crucible at 1673 K, and thus several thermodynamic data were obtained as follows: Interaction parameters: εMn(C sat.)P=-4.72±0.27,(XMn<0.06,XP<0.25,1673K), εC(C sat.)P=6.09±0.15,(XMn<0.06,XP<0.25,1673K). C solubility: XC[in Fe-P-Mn-C(sat.)]=0.19e-(6.09XP-0.47XMn). Activity coefficient: lnγMn[in Fe-P-Mn-C(sat.)]=-4.72XP-0.47XC-0.87, lnγP[in Fe-P-Mn-C(sat.)]H-lnγP[in Fe-P-C]H=εPMnXMn=-4.72XMn, and lnγP[in Fe-P-Mn-C(sat.)]H=-4.72XMn+4.26XP+6.09XC. In addition, a comparison with the results obtained by previous studies on the selective reduction of steelmaking slag indicated that the activity coefficients of P and Mn obtained in the study were applicable.

Original language	English
Pages (from-to)	825-833
Number of pages	9
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	50
Issue number	2
DOIs	https://doi.org/10.1007/s11663-019-01520-4
Publication status	Published - 2019 Apr 15

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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Shin, D. J., Gao, X., Ueda, S., & Kitamura, S. Y. (2019). Measurement of the Activity Coefficients of P and Mn in Carbon-Saturated Fe-P-Mn-C Alloy. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 50(2), 825-833. https://doi.org/10.1007/s11663-019-01520-4

@article{4402e75046374609bbeb53bced3c5798,

title = "Measurement of the Activity Coefficients of P and Mn in Carbon-Saturated Fe-P-Mn-C Alloy",

abstract = "The thermodynamic properties of the Fe-P-Mn-C(sat.) alloy, which is obtained following the reduction of steelmaking slag or manganese ore, are not adequately clarified. Thus, the current study involved measuring the activity coefficients of both Mn and P in the alloy system. The Fe-P-Mn-C (sat.) alloy (2.5 to 15.2 mass pct of P and 2.9 to 12.8 mass pct of Mn) was equilibrated with Ag in a graphite crucible at 1673 K, and thus several thermodynamic data were obtained as follows: Interaction parameters: εMn(C sat.)P=-4.72±0.27,(XMn<0.06,XP<0.25,1673K), εC(C sat.)P=6.09±0.15,(XMn<0.06,XP<0.25,1673K). C solubility: XC[in Fe-P-Mn-C(sat.)]=0.19e-(6.09XP-0.47XMn). Activity coefficient: lnγMn[in Fe-P-Mn-C(sat.)]=-4.72XP-0.47XC-0.87, lnγP[in Fe-P-Mn-C(sat.)]H-lnγP[in Fe-P-C]H=εPMnXMn=-4.72XMn, and lnγP[in Fe-P-Mn-C(sat.)]H=-4.72XMn+4.26XP+6.09XC. In addition, a comparison with the results obtained by previous studies on the selective reduction of steelmaking slag indicated that the activity coefficients of P and Mn obtained in the study were applicable.",

author = "Shin, {Dong Jun} and Xu Gao and Shigeru Ueda and Kitamura, {Shin ya}",

year = "2019",

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day = "15",

doi = "10.1007/s11663-019-01520-4",

language = "English",

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journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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TY - JOUR

T1 - Measurement of the Activity Coefficients of P and Mn in Carbon-Saturated Fe-P-Mn-C Alloy

AU - Shin, Dong Jun

AU - Gao, Xu

AU - Ueda, Shigeru

AU - Kitamura, Shin ya

PY - 2019/4/15

Y1 - 2019/4/15

N2 - The thermodynamic properties of the Fe-P-Mn-C(sat.) alloy, which is obtained following the reduction of steelmaking slag or manganese ore, are not adequately clarified. Thus, the current study involved measuring the activity coefficients of both Mn and P in the alloy system. The Fe-P-Mn-C (sat.) alloy (2.5 to 15.2 mass pct of P and 2.9 to 12.8 mass pct of Mn) was equilibrated with Ag in a graphite crucible at 1673 K, and thus several thermodynamic data were obtained as follows: Interaction parameters: εMn(C sat.)P=-4.72±0.27,(XMn<0.06,XP<0.25,1673K), εC(C sat.)P=6.09±0.15,(XMn<0.06,XP<0.25,1673K). C solubility: XC[in Fe-P-Mn-C(sat.)]=0.19e-(6.09XP-0.47XMn). Activity coefficient: lnγMn[in Fe-P-Mn-C(sat.)]=-4.72XP-0.47XC-0.87, lnγP[in Fe-P-Mn-C(sat.)]H-lnγP[in Fe-P-C]H=εPMnXMn=-4.72XMn, and lnγP[in Fe-P-Mn-C(sat.)]H=-4.72XMn+4.26XP+6.09XC. In addition, a comparison with the results obtained by previous studies on the selective reduction of steelmaking slag indicated that the activity coefficients of P and Mn obtained in the study were applicable.

AB - The thermodynamic properties of the Fe-P-Mn-C(sat.) alloy, which is obtained following the reduction of steelmaking slag or manganese ore, are not adequately clarified. Thus, the current study involved measuring the activity coefficients of both Mn and P in the alloy system. The Fe-P-Mn-C (sat.) alloy (2.5 to 15.2 mass pct of P and 2.9 to 12.8 mass pct of Mn) was equilibrated with Ag in a graphite crucible at 1673 K, and thus several thermodynamic data were obtained as follows: Interaction parameters: εMn(C sat.)P=-4.72±0.27,(XMn<0.06,XP<0.25,1673K), εC(C sat.)P=6.09±0.15,(XMn<0.06,XP<0.25,1673K). C solubility: XC[in Fe-P-Mn-C(sat.)]=0.19e-(6.09XP-0.47XMn). Activity coefficient: lnγMn[in Fe-P-Mn-C(sat.)]=-4.72XP-0.47XC-0.87, lnγP[in Fe-P-Mn-C(sat.)]H-lnγP[in Fe-P-C]H=εPMnXMn=-4.72XMn, and lnγP[in Fe-P-Mn-C(sat.)]H=-4.72XMn+4.26XP+6.09XC. In addition, a comparison with the results obtained by previous studies on the selective reduction of steelmaking slag indicated that the activity coefficients of P and Mn obtained in the study were applicable.

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U2 - 10.1007/s11663-019-01520-4

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VL - 50

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EP - 833

JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

SN - 1073-5615

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