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Phase Equilibria of SiO2-Ce2O3-CaO-25wt.% Al2O3 System at 1773 K

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Advances in Powder and Ceramic Materials Science 2023 (TMS 2023)

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Abstract

The utilization of rare earth resources, especially secondary resources (e.g., RE-oxide system slag), has been limited by the lack of thermodynamic information. In order to supplement and refine the thermodynamic data related to rare earth, the equilibrium experiments of SiO2-Ce2O3-CaO-25wt.% Al2O3 system phase diagram were carried out at 1773 K by the high-temperature isothermal equilibration/quenching technique in the current paper. The composition of seven phase regions was determined by FE-SEM, XRD, EPMA, and XRF analysis on the samples obtained by high-temperature equilibrium technology at 1773 K, including the primary crystal regions of three compounds (C2AS, 2CaO·SiO2, and CaO·2Ce2O3·3SiO2), three three-phase coexistence regions (L + C2AS + 2CaO·SiO2, L + C2AS + CaO·2Ce2O3·3SiO2, and L + CaO·2Ce2O3·3SiO2 + CeAl11O18), and a liquid region. The phase relations and isotherms of SiO2-Ce2O3-CaO-25wt.% Al2O3 system obtained in current work are beneficial to the recycling of rare earth resources containing cerium.

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References

  1. Mohammed AA, Leonard Z, Michael GP (2012) Economics of rare earth elements in ceramic capacitors. Ceram Int 38:6091–6098

    Article  Google Scholar 

  2. Xu CH, Huang CZ, Ai X (2006) Toughening and strengthening of advanced ceramics with rare earth additives. Ceram Int 32:423–429

    Article  CAS  Google Scholar 

  3. Sadeq MS, Morshidy HY (2019) Effect of mixed rare-earth ions on the structural and optical properties of some borate glasses. Ceram Int 45:18327–18332

    Article  CAS  Google Scholar 

  4. Yuan ZX, Bai G, Wu CY, Zhang ZQ, Ye XJ (1992) Geological features and genesis of the Bayan Obo REE ore deposit. Inner Mongolia China Appl Geochem 7:429–442

    Google Scholar 

  5. Zhang B, Liu CJ, Li CL, Jiang MF (2014) A novel approach for recovery of rare earths and niobium from Bayan Obo tailings. Miner Eng 65:17–23

    Article  CAS  Google Scholar 

  6. Jordens A, Cheng YP, Waters KE (2013) A review of the beneficiation of rare earth element bearing minerals. Miner Eng 41:97–114

    Article  CAS  Google Scholar 

  7. Humphries M (2010) Rare earth element: the global supply chain. Congressional Research Service, Washington, DC

    Google Scholar 

  8. Xu T, Peng HQ (2009) Formation cause, composition analysis and comprehensive utilization of rare earth solid wastes. J Rare earth 27:1096

    Article  Google Scholar 

  9. Tas AC, Akinc M (1994) Phase relations in the system Ce2O3-Ce2Si2O7 in the temperature range 1150℃ to 1970℃ in reducing and inert atmospheres. J Am Ceram Soc 77:2953–2960

    Article  CAS  Google Scholar 

  10. Zhao Z, Chen X, Glaser B, Yan B (2019) Experimental study on the thermodynamics of the CaO-SiO2-Ce2O3 system at 1873 K. Metall Mater Trans B 50:395–406

    Article  CAS  Google Scholar 

  11. Lan X, Gao JT, Du Y, Guo ZC (2020) Thermodynamics and crystallization kinetics of REEs in CaO-SiO2-Ce2O3 system. J Am Ceram Soc 103:2845–2858

    Article  CAS  Google Scholar 

  12. Lan X, Gao JT, Li Y, Guo ZC (2021) Thermodynamics and kinetics of REEs in CaO-SiO2-CaF2-Ce2O3 system: a theoretical basis toward sustainable utilization of REEs in REE-bearing slag. Ceram Int 47:6130–6138

    Article  CAS  Google Scholar 

  13. Lan X, Gao JT, Li Y, Guo ZC (2021) Phase equilibria of CaO–SiO2–CaF2–P2O5–Ce2O3 system and formation mechanism of britholite. Ceram Int 47:11966–11972

    Article  CAS  Google Scholar 

  14. Li DG, Bu Q, Lou T, Sui ZT (2004) Morphology of solidified slag for RE2O3-CaO-SiO2-CaF2-MgO-Al2O3 system. J Iron Steel Res Int 16:30–33

    CAS  Google Scholar 

  15. Ding YG, Wang JS, Wang G, Xue QG (2012) Innovative methodology for separating of rare earth and iron from Bayan Obo complex iron ore. ISIJ Int 52:1772–1777

    Article  CAS  Google Scholar 

  16. Wu Y, Ren G, Ding D, Yang F, Pan S (2012) Energy levels of Ce3+ in Lu0.8Sc0.2BO3 host: a comparison study between x-ray photoelectron spectroscopy and pure optical method. IEEE Trans Nucl Sci 59:2069–2073

    Google Scholar 

  17. Pidol L, Viana B, Kahn-Harari A, Galtayries A, Bessiere A, Dorenbos P (2004) Optical properties and energy levels of Ce3+ in lutetium pyrosilicate scintillator crystal. J Appl Phys 95:7731–7737

    Article  CAS  Google Scholar 

  18. Li M, Zhang T, Wang W, Zhang H, Li R. Experimental study on thermodynamics of CaO-SiO2-Ce2O3 -5wt.% Al2O3 system at 1773 K. TMS (2022)209–223

    Google Scholar 

  19. Won K, Smith A, Zeininger G (2006) Thermodynamic methods for pressure relief system design parameters. Fluid Phase Equilib 241:41–50

    Article  CAS  Google Scholar 

  20. Elwert T, Goldmann D, Schirmer T, Strauss K (2014) Affinity of rare earth elements to silico-phosphate phases in the system Al2O3-CaO-MgO-P2O5-SiO2. Chem Ing Tech 86:840–847

    Article  CAS  Google Scholar 

  21. Gao P, Han Y, Sun Y, Chen C (2012) Research on the reaction behavior of rare earth elements in reduction. Powder Technol Appl IV 454:268–272

    CAS  Google Scholar 

  22. Wang Z, Sun H, Zhang L, Zhu Q (2016) Phase equilibria in the TiO2 rich part of the TiO2-CaO-SiO2-10wt% Al2O3 system at 1773 K and 1873 K. J Alloy Compd 671:137–143

    Article  CAS  Google Scholar 

  23. Gran J, Wang Y, Sichen D (2011) Experimental determination of the liquidus in the high basicity region in the Al2O3(30 mass%)-CaO-MgO-SiO2 system. Calphad 35:249–254

    Article  CAS  Google Scholar 

  24. Verein Deutscher Eisenhuttenleute (1995) SLAG ATLAS 2nd Edition[M]. Verlag Stahleisen GmbH, p 105

    Google Scholar 

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Correspondence to Tongsheng Zhang .

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Li, R., Li, M., Zhang, T., Wang, W. (2023). Phase Equilibria of SiO2-Ce2O3-CaO-25wt.% Al2O3 System at 1773 K. In: Li, B., et al. Advances in Powder and Ceramic Materials Science 2023. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22622-9_7

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