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Phase Equilibrium Relationship of CaO-SiO2-La2O3 System and Crystallization Behaviors of RE Phases

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Abstract

Recently, the recovery and utilization of rare earth elements (REEs) from secondary resources have become increasingly important with the rapid consumption of high-grade rare earth resources. There is a certain content of REEs in the blast furnace slag, which mostly are light rare earth elements (LREEs). However, the lack of basic thermodynamic data has caused difficulty for the recovery and utilization. In this study, the thermodynamic equilibria of CaO-SiO2-La2O3 system were systematically investigated with lanthanum (La) as the representative LREE. Three rare earth equilibrium phases of CaxLa4.67-x(SiO4)3O1-0.5 (70 wt.% La2O3), La2Ca3(SiO3)6 (40 wt.% La2O3) and LaxCa2-x(SiO4)O0.5x (20 wt.% La2O3) were identified in this system, and CaxLa4.67-x(SiO4)3O1-0.5× was considered the optimal RE phase for the separation of REEs by comparing the microstructures and chemical compositions. Isothermal phase diagram of CaO-SiO2-La2O3 system at 1300 °C was constructed and the crystallization behavior of CaxLa4.67-x(SiO4)3O1-0.5× phase studied to provide a theoretical basis for the enrichment of REEs and separation of RE phases from the blast furnace slag.

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References

  1. H. Li, F.J. Wei, and R.X. Gao, E3S Web Conf. 257, 01026 (2021).

    Article  Google Scholar 

  2. N. Malhotra, H.S. Hsu, S.T. Liang, M.J.M. Roldan, J.S. Lee, T.R. Ger, and C.D. Hsiao, Animals 10, 1663 (2020).

    Article  Google Scholar 

  3. L.F. Fan, R. Zhu, J.Z. He, and B. Lu, ISIJ Int. 58, 2348 (2018).

    Article  Google Scholar 

  4. N. Dushyantha, N. Batapola, I. Ilankoon, S. Rohitha, R. Premasiri, B. Abeysinghe, N. Ratnayake, and K. Dissanayake, Ore Geol. Rev. 122, 103521 (2020).

    Article  Google Scholar 

  5. P. Meshram, S. Sarkar, and T. Venugopalan, Miner. Metall. Proc. 34, 178 (2017).

    Google Scholar 

  6. S. Ilyas, H. Kim, and R.R. Srivastava, JOM 73, 19 (2021).

    Article  Google Scholar 

  7. A. Shoghian-Alanaghi, A.J. Zamharir, H. Aghajani, and A.T. Tabrizi, Min Metall Explor. 39, 1753 (2022).

    Google Scholar 

  8. A.G. Arbat, E.A. Fesaghandis, A.T. Tabrizi, and H. Aghajani, Trans. Indian Inst. Met. 73, 2355 (2020).

    Article  Google Scholar 

  9. J.L. Wang, P. Zu, S.W. Yi, and Z. Cao, Min. Metall. Explor. 38, 701 (2021).

    Google Scholar 

  10. J. Zhou, X.Q. Wang, L.S. Nie, J.M. McKinley, H.L. Liu, B.M. Zhang, and Z.X. Han, J. Geochem. Explor. 215, 106545 (2020).

    Article  Google Scholar 

  11. H.H. Wang, M. Li, D.L. Zhang, K. Gao, J.F. Li, Z.X. Weng, and W. Xu, J. Rare Earths. 38, 1140 (2020).

    Article  Google Scholar 

  12. I. Ohnuma, and K. Ishida, Tecnol. Metal. Mater. Min. 13, 46 (2016).

    Article  Google Scholar 

  13. X. Zheng, and C.J. Liu, Metall. Mater. Trans. B 52, 3183 (2021).

    Article  Google Scholar 

  14. T.H. Le, A. Malfliet, B. Blanpainn, and M.X. Guo, Metall. Mater. Tran. B 47, 1736 (2016).

    Article  Google Scholar 

  15. M.C. Li, R.S. Li, and T.S. Zhang, Ceram. Int. 48, 31614 (2022).

    Article  Google Scholar 

  16. X. Lan, J.T. Gao, Y. Li, and Z.C. Guo, Ceram. Int. 47, 6130 (2021).

    Article  Google Scholar 

  17. X. Zheng, and C.J. Liu, ISIJ Int. 62, 1091 (2022).

    Article  Google Scholar 

  18. J.Y. Qiu, C.J. Liu, Z.Y. Liu, and Z. Yu, J. Rare Earths. 38, 100 (2020).

    Article  Google Scholar 

  19. C.J. Liu, and J.Y. Qiu, J. Eur. Ceram. Soc. 38, 2090 (2018).

    Article  Google Scholar 

  20. J.Y. Qiu, and C.J. Liu, Metall. Mater. Trans. B. 49, 69 (2018).

    Article  Google Scholar 

  21. X.F. She, H. Zhang, Z.L. An, J.S. Wang, and Q.G. Xue, Ceram. Int. 47, 33805 (2021).

    Article  Google Scholar 

  22. A. Meden, M. Vidmar, A. Golobic, D. Suvorov, and S.D. Skapin, Acta Cryst. A. 71, 334 (2015).

    Article  Google Scholar 

  23. D.Q. Wang, M. Chen, Y. Jiang, S. Wang, Z.X. Zhao, T. Evans, and B.J. Zhao, J. Am. Ceram. Soc. 103, 7299 (2020).

    Article  Google Scholar 

  24. M. Keskar, G. Patkare, M. Shafeeq, R.A. Phatak, and S. Kannan, J. Solid State Chem. 308, 122892 (2022).

    Article  Google Scholar 

  25. N.E. Volkova, K.S. Tolstov, L.Y. Gavrilova, B. Raveau, A. Maignan, and V.A. Cherepanov, J. Am. Ceram. Soc. 104, 2410 (2021).

    Article  Google Scholar 

  26. X.M. Wang, S.Q. Chen, J.X. Hu, F.C. Yin, W. Qiu, Y.B. Sun, and Z.Y. Lin, JOM 74, 4716 (2022).

    Article  Google Scholar 

  27. C.F. Xu, J.P. Tian, Y.Q. Yang, Q.R. Yao, D.D. Ma, Z.F. Gu, G.H. Rao, Q.Y. Su, X.H. Xie, and T.M. Li, JOM 74, 4710 (2022).

    Article  Google Scholar 

  28. M.Y. Zhao, L.Z. Song, and X.B. Fan, The Boundary Theory of Phase Diagrams and Its Application (Springer, Berlin Heidelberg, 2011).

    Book  Google Scholar 

  29. T. Elwert, D.I.D. Goldmann, T. Schirmer, and K. Strauß, Chem. Ing. Tech. 86, 840 (2014).

    Article  Google Scholar 

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Funding

The Project is funded by National Natural Science Foundation of China, Grant no. 51774037, Postdoctoral Research Foundation of China, Grant no. 2021M700393.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology, Xueyuan Road No.30, Haidian District, Beijing, 100083, Beijing, People’s Republic of China

    Jintao Gao, Kairong Xue, Xi Lan & Zhancheng Guo

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  1. Jintao Gao
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  2. Kairong Xue
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  3. Xi Lan
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  4. Zhancheng Guo
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Gao, J., Xue, K., Lan, X. et al. Phase Equilibrium Relationship of CaO-SiO2-La2O3 System and Crystallization Behaviors of RE Phases. JOM 75, 3521–3531 (2023). https://doi.org/10.1007/s11837-023-05903-6

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  • DOI: https://doi.org/10.1007/s11837-023-05903-6

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