Semiempirical Model for the Solubility of Rare Earth Oxides in. Molten Fluorides

Transcription

1 Supporting information Semiempirical Model for the Solubility of Rare Earth Oxides in Molten Fluorides Xiaoling Guo a *, Zhi Sun a,b *, Jilt Sietsma a, Yongxiang Yang a a Department of Materials Science and Engineering, Delft University of Technology Mekelweg, 68 CD Delft, The Netherlands b National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing , China *Corresponding authors: Xiaoling Guo (shelley_goo@msn.com; x.guo-1@tudelft.nl) and Zhi Sun (zhisun@16.com) S1

2 Table S1 Solubility of rare earth oxides in fluoride melts Solubility, solubility, REO Melt Temperature, K mol.% wt.% Y O 3 5YF 3-75LiF 50YF 3-50LiF YF 3-65LiF YF 3-35LiF YF 3-50NaF 5YF 3-75NaF LiF-15MgF -4BaF YF 3-80LiF 5YF 3-75LiF S

3 REO Melt Temperature, K Solubility, mol.% solubility, wt.% YF 3-60LiF 50YF 3-50LiF La O 3 41LaF 3-59LiF LaF 3-65LiF-5BaF LiF-15MgF -4BaF LiF NaF KF LiF-11.5NaF-4KF LiF-5AlF NaF-5AlF KF-5AlF LiF-49ZrF NaF-49.5ZrF S3

4 REO Melt Temperature, K Solubility, mol.% solubility, wt.% KF-4ZrF CeF 3-66LiF-8BaF LiF-15MgF -4BaF CeO NaF-5AlF Pr O 3 81LiF-15MgF -4BaF LiF-5MgF LiF-18MgF -6CaF LiF-14MgF -9CaF LiF-10MgF -1CaF LiF-6.5MgF -15.5CaF LiF-18MgF -3BaF LiF-15MgF -4BaF LiF-11MgF -6BaF LiF-7MgF -8BaF Nd O 3 3NdF 3-77LiF NdF 3-7LiF NdF 3-66LiF NdF 3-76LiF-4BaF NdF 3-77LiF-BaF NdF 3-7LiF-4BaF NdF 3-7LiF-BaF S4

5 REO Melt Temperature, K Solubility, mol.% solubility, wt.% NdF 3-66LiF-5BaF NdF 3-66LiF-BaF NdF 3-76LiF-19CaF NdF 3-7LiF-18CaF NdF 3-64LiF-16CaF NdF 3-85LiF NdF LiF NdF 3-70LiF NdF LiF-11.MgF NdF LiF-5.6MgF NdF 3-59.LiF-10.8MgF NdF LiF-.7MgF NdF 3-69LiF-1MgF NdF 3-58LiF NdF 3-50LiF NdF 3-40LiF LiF-15MgF -4BaF Sm O 3 51LiF-49ZrF NaF-49.5ZrF S5

6 Solubility, solubility, REO Melt Temperature, K mol.% wt.% Ho O 3 58KF-4ZrF LiF-15MgF -4BaF LiF-49ZrF NaF-49.5ZrF 4 58KF-4ZrF Eu O Gd O Dy O LiF-15MgF -4BaF Er O Tm O Yb O s 1. Bratland, D. On the Possible Electrowinning of Yt-Al Alloys. The Solubility of Yttria and of Alumina in Molten Mixtures of Yttrium Fluoride and Lithium Fluoride. Light Metals , 1, S6

7 . Du, S.; Wu, M.; Du, F.; Liu, Y. Solubility of Rare Earth Oxides in Alkali and Alkali-Earth Metal Fluoride Melts. Chin. Rare Earths 1987, 8 (), (a) Morrice, E.; Reddy, R. G. In Solubility and Activity Coefficient of Y O 3 in Fluoride Melts, Rare Earths, Extraction, Preparation and Applications sponsored, Las Vegas, Nevada, Bautista, R. G.; Wong, M. M., Eds. TMS: Las Vegas, Nevada, 1989; pp ; (b) Reddy, R. G.; Kumar, S. G. Solubility and Thermodynamic Properties of Y O 3 in LiF-YF 3 Melts. Metall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci. 1994, 5 (1), Porter, B. B. E. A. Determination of Oxide Solubility in Molten Fluorides; U.S. Dept. of the Interior, Bureau of Mines: Washington, DC, Ambrová, M.; Jurišová, J.; Danielik, V.; Gabčová, J. On the Solubility of Lanthanum Oxide in Molten Alkali Fluorides. J. Therm. Anal. Calorim. 008, 91 (), Ambrová, M.; Jurišová, J. Solubilities of Lanthanum Oxide in Fluoride Melts Part I. Solubility in M 3 AlF 6 (M=Li, Na, K). Thermochim. Acta 006, 443 (1), Pshenichny, R. N.; Omelchuk, A. A. Interaction of Rare-Earth Oxides with Binary Molten Mixtures of Zirconium and Alkali Metal Fluorides. Russ. J. Inorg. Chem. 01, 57 (1), Dewing, E. W.; Haarberg, G. R.; Rolseth, S.; Ronne, L.; Thonstad, J.; Aalberg, N. The Chemistry of Solutions of CeO in Cryolite Melts. Metall. Mater. Trans. B- Proc. Metall. Mater. Proc. Sci. 1995, 6 (1), Wu, W.; Sun, J.; Hai, L.; Gao, H. Nd O 3 Solubility in Fluoride Melt. Chin. Rare Earths 1991, 1 (3), Murphy, J.; Dysinger, D.; Chambers, M. Electrowinning Neodymium Metal from Chloride and Oxide-Fluoride Electrolytes. In Trace and Reactive Metals: Processing and Technology, Reddy, R. G., Ed. 1995; pp S7

8 11. Stefanidaki, E.; Photiadis, G. M.; Kontoyannis, C. G.; Vik, A. F.; Ostvold, T. Oxide Solubility and Raman Spectra of NdF 3 -LiF-KF-MgF -Nd O 3 Melts. J. Chem. Soc., Dalton Trans. 00, (11), Hu, X. Study on Ionic Structure and Its Application of NdF 3 -LiF-Nd O 3 System Melts. Doctoral dissertation, Northeastern University, 008. S8