Experiment of Phosphorus and Oxygen Distribution between CaO-SiO&lt;SUB&gt;2&lt;/SUB&gt; MgO-Fe&lt;SUB&gt;t&lt;/SUB&gt;O Slag and Liquid Steel and Estimation of Phosphorus Content at End Point of Top and Bottom Blowing Converter

Usui, Tsutomu; Yamada, Keisuke; Kawai, Yoshihiro; Inoue, Shigeru; Ishikawa, Hiroaki; Nimura, Yoichi

doi:10.2355/tetsutohagane1955.77.10_1641

Cited by 13 publications

(20 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1] or Eq. [5], the applied phosphorus partition L P L 0 P by some researchers [2,3,13,19,20,33,37,40,57,65,[81][82][83] has a close relationship with the dephosphorization mechanism. Thus, the expression of L P L 0 P is applied in this study.…”

Section: Relationship Among Various Expressions Of Phosphorus Partmentioning

confidence: 96%

“…Most models from the literature [2,3,10,13,19,20,21,23,33,37,40,55,57,65,67,69,70] were developed for molten steel dephosphorization by CaO-based slags, while only two models by Kawai et al [26] as well as by Lee and Fruehan [74] were established for hot metal dephosphorization by CaObased slags. As thermodynamic models, the collected 16 models of k P or L P were established under the condition of the slag-metal equilibrium over various temperature ranges.…”

Section: ½4mentioning

confidence: 99%

“…Only several models among the collected 16 models of k P or L P , rather than the entire 16 models, had primarily been evaluated by Yang et al [81][82][83] based on the experimental data of L P for molten steel dephosphorization by the CaO-based slags. In this contribution, the collected 16 models of k P or L P from the literature [2,3,10,13,19,20,21,23,26,33,37,40,55,57,65,67,69,70,74] have critically been evaluated based on the measured [84] results of hot metal dephosphorization at a commercial-scale hot metal pretreatment station as well as the recently proposed dephosphorization mechanism [84] of hot metal by CaO slags. This implies that the reported [84] experimental data of hot metal dephosphorization are applied as a basis to evaluate the collected 16 models of k P or L P .…”

Section: ½4mentioning

confidence: 99%

“…[5a] can also be written in ionic form as [2,3] I M2 1970 [10] I M3 1981 [13] I M4 1982 [19,20] I M5 1982 [21] II M6 1983 [26] I M7 1983 [23] I M8 1984 [33] I M9 1986 [37] I M10 1987 [40] I M11 1991 [57] I M12 1991 [55] II M13 1995 [65] I M14 1996 [67] I M15 2000 [69,70] I M16 2005 [74] I * Term c [2,3] ** I stands for models of the first category; II represent models of the secondary category.…”

Section: B Forms Of Phosphate As Dephosphorization Products In Cao-bmentioning

confidence: 99%

“…Thus, most prediction models of L P in the literature [2,3,10,13,19,20,21,23,26,33,37,40,55,57,65,67,71,72,74] were expressed in various forms of equilibrium quotient or apparent equilibrium constant k P of dephosphorization reaction in Eq. [ Obviously, iron oxide content (pct Fe t O) or total iron content (pct TAEFe) in slags or oxygen content [pct O] in iron-based melts can be applied by researchers to represent the oxidization ability of slags or metallic melts in denominators of various forms of k P in Eq.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Critical Evaluation of Prediction Models for Phosphorus Partition between CaO-based Slags and Iron-based Melts during Dephosphorization Processes

Yang

Chai

et al. 2016

Metall Mater Trans B

View full text Add to dashboard Cite

According to the experimental results of hot metal dephosphorization by CaO-based slags at a commercial-scale hot metal pretreatment station, the collected 16 models of equilibrium quotient k P or phosphorus partition L P between CaO-based slags and iron-based melts from the literature have been evaluated. The collected 16 models for predicting equilibrium quotient k P can be transferred to predict phosphorus partition L P . The predicted results by the collected 16 models cannot be applied to be criteria for evaluating k P or L P due to various forms or definitions of k P or L P . Thus, the measured phosphorus content [pct P] in a hot metal bath at the end point of the dephosphorization pretreatment process is applied to be the fixed criteria for evaluating the collected 16 models. The collected 16 models can be described in the form of linear functions as y ¼ c 0 þ c 1 x, in which independent variable x represents the chemical composition of slags, intercept c 0 including the constant term depicts the temperature effect and other unmentioned or acquiescent thermodynamic factors, and slope c 1 is regressed by the experimental results of k P or L P . Thus, a general approach to developing the thermodynamic model for predicting equilibrium quotient k P or phosphorus partition L P or [pct P] in iron-based melts during the dephosphorization process is proposed by revising the constant term in intercept c 0 for the summarized 15 models except for Suito's model (M3). The better models with an ideal revising possibility or flexibility among the collected 16 models have been selected and recommended. Compared with the predicted result by the revised 15 models and Suito's model (M3), the developed IMCT-L P model coupled with the proposed dephosphorization mechanism by the present authors can be applied to accurately predict phosphorus partition L P with the lowest mean deviation d L P of log L P as 2.33, as well as to predict [pct P] in a hot metal bath with the smallest mean deviation d ½%P of [pct P] as 12.31.

show abstract

Section: Relationship Among Various Expressions Of Phosphorus Partmentioning

confidence: 96%

Section: ½4mentioning

confidence: 99%

Section: ½4mentioning

confidence: 99%

Section: B Forms Of Phosphate As Dephosphorization Products In Cao-bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Critical Evaluation of Prediction Models for Phosphorus Partition between CaO-based Slags and Iron-based Melts during Dephosphorization Processes

Yang

Chai

et al. 2016

Metall Mater Trans B

View full text Add to dashboard Cite

show abstract

Applications of Arcelormittal Thermodynamic Computation Tools to Steel Production

Lehmann

2016

Advances in Molten Slags, Fluxes, and Salts

View full text Add to dashboard Cite

Applications of ArcelorMittal Thermodynamic Computation Tools to Steel Production

Lehmann

2016

Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts

View full text Add to dashboard Cite

Experiment of Phosphorus and Oxygen Distribution between CaO-SiO<SUB>2</SUB> MgO-Fe<SUB>t</SUB>O Slag and Liquid Steel and Estimation of Phosphorus Content at End Point of Top and Bottom Blowing Converter

Cited by 13 publications

References 1 publication

Critical Evaluation of Prediction Models for Phosphorus Partition between CaO-based Slags and Iron-based Melts during Dephosphorization Processes

Critical Evaluation of Prediction Models for Phosphorus Partition between CaO-based Slags and Iron-based Melts during Dephosphorization Processes

Applications of Arcelormittal Thermodynamic Computation Tools to Steel Production

Applications of ArcelorMittal Thermodynamic Computation Tools to Steel Production

Contact Info

Product

Resources

About