低温低碱度脱磷渣中磷的富集行为

doi:10.1007/s12613-020-2036-x

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Jan. 2021

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文章导航 > 矿物冶金与材料学报（英文） > 2021 > 28(1): 66-75

Ge-fan Ye, Jian Yang, Run-hao Zhang, Wen-kui Yang, and Han Sun, Behavior of phosphorus enrichment in dephosphorization slag at low temperature and low basicity, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 66-75. https://doi.org/10.1007/s12613-020-2036-x

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Ge-fan Ye, Jian Yang, Run-hao Zhang, Wen-kui Yang, and Han Sun, Behavior of phosphorus enrichment in dephosphorization slag at low temperature and low basicity, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 66-75. https://doi.org/10.1007/s12613-020-2036-x

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低温低碱度脱磷渣中磷的富集行为

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Behavior of phosphorus enrichment in dephosphorization slag at low temperature and low basicity

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Abstract

At low basicity and low temperature, the dephosphorization behavior and phosphorus distribution ratio (L_P) between slag and molten steel in the double slag and remaining slag process were studied with a 180 t basic oxygen furnace industrial experiment. The dephosphorization slags with different basicities were quantitatively analyzed. At the lower basicity range of 0.9–2.59, both L_P and dephosphorization ratio were increased as the basicity of dephosphorization slag increased. Dephosphorization slag consisted of dark gray P-rich, light gray liquid slag, and white Fe-rich phases. With increasing basicity, not only did the morphologies of different phases in the dephosphorization slag change greatly, but the area fractions and P₂O₅ content of the P-rich phase also increased. The transfer route of P during dephosphorization can be deduced as hot metal → liquid slag phase + Fe-rich phase → P-rich phase.
- dephosphorization;
- basicity;
- phosphorus-rich phase;
- slag;
- converter steelmaking

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[1]	Y. Ogawa, M. Yano, S.-Y. Kitamura, and H. Hirata, Development of the continuous dephosphorization and decarburization process using BOF, Steel Res. Int., 74(2003), No. 2, p. 70. doi: 10.1002/srin.200300163
[2]	N. Sasaki, Y. Ogawa, S. Mukawa, and K.-I. Miyamoto, Improvement in hot-metal dephosphorization, Nippon Steel Tech. Rep., 104(2013), p. 26.
[3]	M. Kobayashi, K. Isobe, and M. Arai, Technical progress in steelmaking and casting for special bar and wire steel at muroran works, Nippon Steel Tech. Rep., 394(2012), p. 119.
[4]	X.H. Wang, G.S. Zhu, H.B. Li, and Y.C. Lü, Investigation on “slag-remaining + double-slag” BOF steelmaking technology, China Metall., 23(2013), No. 4, p. 40.
[5]	X. Yang, F.M. Sun, J.L. Yang, F. Liu, K.S. Cheng, and J. H. Wang, Optimization of low phosphorus steel production with double slag process in BOF, J. Iron Steel Res. Int., 20(2013), No. 8, p. 41. doi: 10.1016/S1006-706X(13)60139-9
[6]	Z.H. Tian, B.H. Li, X.M. Zhang, and Z.H. Jiang, Double slag operation dephosphorization in BOF for producing low phosphorus steel, J. Iron Steel Res. Int., 16(2009), No. 3, p. 6. doi: 10.1016/S1006-706X(09)60036-4
[7]	J.F. Lü, Z.N. Jin, H.Y. Yang, L.L. Tong, G.B. Chen, and F.X. Xiao, Effect of the CaO/SiO2 mass ratio and FeO content on the viscosity of CaO–SiO₂–“FeO”–12wt%ZnO–3wt%Al₂O₃ slags, Int. J. Miner. Metall. Mater., 24(2017), No. 7, p. 756. doi: 10.1007/s12613-017-1459-5
[8]	S. Kitamura, H. Shibata, K. Shimauchi, and S. Saito, The importance of dicalcium-silicate on hot metal dephosphorization reaction, Revue De Métallurgie, 105(2008), No. 5, p. 263. doi: 10.1051/metal:2008040
[9]	K. Ito, M. Yanagisawa, and N. Sano, Phosphorus distribution between solid 2CaO·SiO₂ and molten CaO–SiO₂–FeO–Fe₂O₃ slags, Tetsu-To-Hagané, 68(1982), No. 2, p. 342. doi: 10.2355/tetsutohagane1955.68.2_342
[10]	S. Kitamura, H. Shibata, and N. Maruoka, Kinetic model of hot metal dephosphorization by liquid and solid coexisting slags, Steel Res. Int., 79(2008), No. 8, p. 586. doi: 10.1002/srin.200806170
[11]	L. Lin, Y.P. Bao, M. Wang, H.M. Zhou, and L.Q. Zhang, Influence of SiO₂ modification on phosphorus enrichment in P bearing steelmaking slag, Ironmaking Steelmaking, 40(2013), No. 7, p. 521. doi: 10.1179/1743281212Y.0000000074
[12]	J.Y. Li, M. Zhang, M. Guo, and X.M. Yang, Enrichment mechanism of phosphate in CaO–SiO₂–FeO–Fe₂O₃–P₂O₅ steelmaking slags, Metall. Mater. Trans. B, 45(2014), No. 5, p. 1666. doi: 10.1007/s11663-014-0085-0
[13]	X. Gao, H. Matsuura, and F. Tsukihashi, Phase equilibrium for the CaO–SiO₂–FeO–P₂O₅ system at 1673 K for dephosphorization with multi phase flux, J. Iron Steel Res. Int., 18(2011), Suppl. 2, p. 84.
[14]	X. Gao, H. Matsuura, I. Sohn, W.L. Wang, D.J. Min, and F. Tsukihashi, Phase relationship for the CaO–SiO₂–FeO–5 mass% P₂O₅ system with oxygen partial pressure of 10⁻⁸ atm at 1673 and 1623 K, Mater. Trans., 54(2013), No. 4, p. 544. doi: 10.2320/matertrans.M-M2013801
[15]	S. Kitamura, S. Saito, K. Utagawa, H. Shibata, and D.G.C. Robertson, Mass transfer of P₂O₅ between liquid slag and solid solution of 2CaO·SiO₂ and 3CaO·P₂O₅, ISIJ Int., 49(2009), No. 12, p. 1838. doi: 10.2355/isijinternational.49.1838
[16]	S.L. Xie, W.L. Wang, Z.C. Luo, and D.Y. Huang, Mass transfer behavior of phosphorus from the liquid slag phase to solid 2CaO·SiO₂ in the multiphase dephosphorization slag, Metall. Mater. Trans. B, 47(2016), No. 3, p. 1583. doi: 10.1007/s11663-016-0622-0
[17]	R. Inoue and H. Suito, Phosphorous partition between 2CaO·SiO₂ particles and CaO–SiO₂–Fe_tO slags, ISIJ Int., 46(2006), No. 2, p. 174. doi: 10.2355/isijinternational.46.174
[18]	K. Shimauchi, S. Kitamura, and H. Shibata, Distribution of P₂O₅ between solid dicalcium silicate and liquid phases in CaO–SiO₂–Fe₂O₃ system, ISIJ Int., 49(2009), No. 4, p. 505. doi: 10.2355/isijinternational.49.505
[19]	X. Yang, H. Matsuura, and F. Tsukihashi, Reaction behavior of P₂O₅ at the interface between solid 2CaO·SiO₂ and liquid CaO–SiO₂–FeO_x–P₂O₅ slags saturated with solid 5CaO·SiO₂·P₂O₅ at 1573 K, ISIJ Int., 50(2010), No. 5, p. 702. doi: 10.2355/isijinternational.50.702
[20]	X. Yang, H. Matsuura, and F. Tsukihashi, Dissolution behavior of solid 5CaO·SiO₂·P₂O₅ in CaO–SiO₂–FeO_x slag, Mater. Trans., 51(2010), No. 6, p. 1094. doi: 10.2320/matertrans.M-M2010810
[21]	X. Yang, H. Matsuura, and F. Tsukihashi, Condensation of P₂O₅ at the interface between 2CaO·SiO₂ and CaO–SiO₂–FeO_x–P₂O₅ slag, ISIJ Int., 49(2009), No. 9, p. 1298. doi: 10.2355/isijinternational.49.1298
[22]	C.M. Du, X. Gao, S. Ueda, and S. Kitamura, Distribution of P₂O₅ and Na₂O between solid solution and liquid phase in the CaO–SiO₂–Fe₂O₃–P₂O₅–Na₂O slag system with high P₂O₅ content, Metall. Mater. Trans. B, 49(2018), No. 1, p. 181. doi: 10.1007/s11663-017-1151-1
[23]	L. Lin, Y.P. Bao, C. Gu, W. Wu, and J.Q. Zeng, Distribution of P₂O₅ between P-rich phase and matrix phase in P-bearing steelmaking slag, High Temp. Mater. Proc., 37(2018), No. 7, p. 655. doi: 10.1515/htmp-2016-0151
[24]	F. Pahlevani, S. Kitamura, H. Shibata, and N. Maruoka, Distribution of P₂O₅ between solid solution of 2CaO·SiO₂–3CaO·P₂O₅ and liquid phase, ISIJ Int., 50(2010), No. 6, p. 822. doi: 10.2355/isijinternational.50.822
[25]	K. Ito and M. Terasawa, Utilization of multiphase fluxes for the dephosphorization of hot metal, Steel Res. Int., 80(2009), No. 10, p. 733.
[26]	T. Hamano, S. Fukagai, and F. Tsukihashi, Reaction mechanism between solid CaO and FeO_x–CaO–SiO₂–P₂O₅ slag at 1573 K, ISIJ Int., 46(2006), No. 4, p. 490. doi: 10.2355/isijinternational.46.490
[27]	X. Gao, H. Matsuura, I. Sohn, W.L Wang, D.J. Min, and F. Tsukihashi, Phase relationship of CaO–SiO₂–FeO–5 mass pct P₂O₅ system with low oxygen partial pressure at 1673 K (1400°C), Metall. Mater. Trans. B, 43(2012), No. 4, p. 694. doi: 10.1007/s11663-012-9651-5
[28]	S.L. Xie and W.L. Wang, Crystallization kinetics study of the (2CaO·SiO₂–3CaO·P₂O₅) solid solution in the multiphase dephosphorization flux, Steel Res. Int., 87(2016), No. 3, p. 376. doi: 10.1002/srin.201500080
[29]	G.W. Healy, New look at phosphorus distribution, J. Iron Steel Inst. (London), 208(1970), No. 7, p. 664.
[30]	H. Suito and R. Inoue, Phosphorus distribution between MgO-saturated CaO–Fe_tO–SiO₂–P₂O₅–MnO slags and liquid iron, Trans. Iron Steel Inst. Jpn., 24(1984), No. 1, p. 40. doi: 10.2355/isijinternational1966.24.40
[31]	K. Ide and R.J. Fruehan, Evaluation of phosphorus reaction equilibrium in steelmaking, Iron Steelmaker, 27(2000), No. 12, p. 65.
[32]	X.F. Zhang, I.D. Sommerville, and J.M. Toguri, Equation for the equilibrium distribution of phosphorus between basic slags and steel, Trans. Iron Steel Soc. AIME, 6(1985), p. 29.
[33]	H.M. Zhou, Y.P. Bao, and L. Lin, Effect of P₂O₅ on rich phosphorus phase of CaO–SiO₂–Fe_tO–P₂O₅ slag, China Metall., 23(2013), No. 1, p. 45.
[34]	S.L. Xie, W.L. Wang, D.Y. Huang, H.C. Li, and Y. Du, Clarification of the dissolution of solid CaO and the phosphorus-enrichment capability of calcium silicates in the multiphase slag based on the ion and molecule coexistence theory, Steel Res. Int., 89(2018), No. 2, art. No. 1700317. doi: 10.1002/srin.201700317

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低温低碱度脱磷渣中磷的富集行为

Behavior of phosphorus enrichment in dephosphorization slag at low temperature and low basicity

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