Abstract
The reaction between rare earth oxychloride (REOCl) and water was investigated. X-ray diffractometer, volumetric titrations, FTIR spectrograph and scanning electron microscope were used to determine the reaction process and the reaction products. It was found that the reaction could be concluded as follows: 5REOCl(s) + 5H2O(l) = 2RE2(OH)5Cl(s) + RE3+(aq) + 3Cl−(aq). Based on this reaction, a new method for determining the purity of anhydrous rare earth chloride was proposed. Compared with the conventional method, the maximum absolute error decreased from 22 to < 1% and the maximum relative error decreased from 111 to < 4% under the experimental conditions.
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References
Augusto EB, Oliveira HP (2001) Kinetics of chlorination and microstructural changes of xenotime by carbon tetrachloride. Metall Mater Trans B 32(5):785–791. https://doi.org/10.1007/s11663-001-0065-z
Carter A (2013) Chlorination and vapor phase extraction of rare earth element concentrate from the Bear Lodge property. Dissertation, University of Montana
Cho YJ, Yang HC, Eun HC, Kim EH, Kim IT (2006) Characteristics of oxidation reaction of rare-earth chlorides for precipitation in LiCl-KCl molten salt by oxygen sparging. J Nucl Sci Technol 43(10):1280–1286. https://doi.org/10.1080/18811248.2006.9711221
Dhananjaya N, Shivakumara C, Saraf R, Behera S, Nagabhushana H (2015) Comparative study of Eu3+-activated LnOCl (Ln = La and Gd) phosphors and their judd-ofelt analysis. J Rare Earths 33(9):946–953. https://doi.org/10.1016/S1002-0721(14)60510-X
Gaede D (2016) Chlorination and selective vaporization of rare earth elements. Dissertation, University of Montana
Gaede DW, Ruffier BD, Downey JP, Chorney JL, Twidwell LG, Foy RJ, Lyons KM (2015) Chlorination roasting of rare earth element oxides. In: Battle TP et al (eds) Drying, roasting, and calcining of minerals. Springer, Cham, pp 11–18. https://doi.org/10.1007/978-3-319-48245-3_2
Gaviría JP, Bohé AE (2009) The kinetics of the chlorination of yttrium oxide. Metall Mater Trans B 40(1):45–53. https://doi.org/10.1007/s11663-008-9215-x
Haschke JM (1979) Halides. In: Gschneidner KA, Eyring L (eds) Handbook on the physics and chemistry of rare earths, vol 4. North Holland, Amsterdam, pp 89–152
Holcombe CE (1978) Yttria hydroxy-salt binders. J Am Ceram Soc 61(11–12):481–486. https://doi.org/10.1111/j.1151-2916.1978.tb16122.x
Indira L, Kamath PV (1994) Electrogeneration of base by cathodic reduction of anions: novel one-step route to unary and layered double hydroxides (LDHs). J Mater Chem 4(9):1487–1490
Kort KR, Banerjee S (2011) Shape-controlled synthesis of well-defined matlockite LnOCl (Ln: La, Ce, Gd, Dy) nanocrystals by a novel non-hydrolytic approach. Inorg Chem 50(12):5539–5544. https://doi.org/10.1021/ic200114s
Lee SS, Park HI, Joh CH, Byeon SH (2007) Morphology-dependent photoluminescence property of red-emitting LnOCl: Eu (Ln = La and Gd). J Solid State Chem 180(12):3529–3534. https://doi.org/10.1016/j.jssc.2007.10.020
Lee BI, Jeong H, Byeon SH (2014) Oxychloride–hydroxychloride–trihydroxide phase relationships of rare earths in aqueous solution. Inorg Chem 53(10):5212–5221. https://doi.org/10.1021/ic500403v
Meyer G, Garcia E, Corbett JD (1989) The ammonium chloride route to anhydrous rare earth chlorides—the example of YCl3. Inorg Synth 25:146–150. https://doi.org/10.1002/9780470132562.ch35
Okamoto K, Imanaka N, Adachi G (2002) Chloride ion conduction in rare earth oxychlorides. Solid State Ion 154:577–580. https://doi.org/10.1016/S0167-2738(02)00496-4
Pomiro FJ, Fouga GG, Gaviría JP, Bohé AE (2015) Study of the reaction stages and kinetics of the europium oxide carbochlorination. Metall Mater Trans B 46(1):304–315. https://doi.org/10.1007/s11663-014-0196-7
Wendlandt WW (1957) The thermal decomposition of yttrium, scandium, and some rare-earth chloride hydrates. J Inorg Nucl Chem 5(2):118–122. https://doi.org/10.1016/0022-1902(57)80052-9
Xia ZG, Li J, Luo Y, Liao LB (2012) Comparative investigation of green and red upconversion luminescence in Er3+ doped and Yb3+/Er3+ codoped LaOCl. J Am Ceram Soc 95(10):3229–3234. https://doi.org/10.1111/j.1551-2916.2012.05306.x
Xue SF, Wu WY, Bian X, Wu YF (2017) Dehydration, hydrolysis and oxidation of cerium chloride heptahydrate in air atmosphere. J Rare Earths 35(11):1156–1163. https://doi.org/10.1016/j.jre.2017.06.001
Zepf V (2013) Rare earth elements: a new approach to the nexus of supply, demand and use: exemplified along the use of neodymium in permanent magnets. Springer, Berlin, pp 16–18. https://doi.org/10.1007/978-3-642-35458-8
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This work was supported by the Fund of State Key Laboratory of Multiphase Complex Systems (MPCS-2019-A-10).
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Pan, B., Zhang, Z. & Lu, X. Determination and application of the reaction between REOCl (RE = Y, Gd and Sm) and H2O. Chem. Pap. 74, 3987–3993 (2020). https://doi.org/10.1007/s11696-020-01202-5
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DOI: https://doi.org/10.1007/s11696-020-01202-5