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Thermodynamic Study on Acid Decomposition Process of Cerium and Terbium Oxides AITranslate

School of Metallurgy and Chemistry Engineering, Jiangxi University of Technology;School of Metallurgy and Chemistry Engineering, Jiangxi University of Technology;School of Metallurgy and Chemistry Engineering, Jiangxi University of Technology;School of Metallurgy and Chemistry Engineering, Jiangxi University of Technology
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

Theφ-pH diagrams of acid decomposition process of oxides of cerium and terbium at 298.15 K were studied by thermodynamic calculation.The results show that CeO2 and TbO2are difficult to be directly decomposed by acid,but they can be transformed into Ce^3+and Tb^3+by acid decomposition in a reductive environment.Compared with CeO2 and TbO2,Ce2O3 and Tb2O3can be directly decomposed into Ce^3+and Tb^3+by acid with high pH value,which actualizes the extraction of cerium and terbium.

KeyWords AITranslate

waste rare earth phosphor cerium terbium thermodynamics acid decomposition φ-pH diagram

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Basic Information:

DOI:

Chinese Library Classification Number:TF845[冶金工程—有色金属冶金]

Citation Information:

Theφ-pH diagrams of acid decomposition process of oxides of cerium and terbium at 298.15 K were studied by thermodynamic calculation.The results show that CeO2 and TbO2are difficult to be directly decomposed by acid,but they can be transformed into Ce^3+and Tb^3+by acid decomposition in a reductive environment.Compared with CeO2 and TbO2,Ce2O3 and Tb2O3can be directly decomposed into Ce^3+and Tb^3+by acid with high pH value,which actualizes the extraction of cerium and terbium.

quote

GB/T 7714-2015 [1] LIANG Yong, LI Yong-kang, XUE Li-yan, et al. Thermodynamic Study on Acid Decomposition Process of Cerium and Terbium Oxides[J]. Rare Metals and Cemented Carbides, 2017(1): 8-10.
MLA [1] LIANG Yong, et al., "Thermodynamic Study on Acid Decomposition Process of Cerium and Terbium Oxides." Rare Metals and Cemented Carbides, no. 1, 2017, pp. 8-10.
APA [1] LIANG Yong, LI Yong-kang, XUE Li-yan, & GUO Dou-dou. (2017). Thermodynamic Study on Acid Decomposition Process of Cerium and Terbium Oxides. Rare Metals and Cemented Carbides(1), 8-10.
IEEE [1] LIANG Yong, LI Yong-kang, XUE Li-yan, and GUO Dou-dou, "Thermodynamic Study on Acid Decomposition Process of Cerium and Terbium Oxides," Rare Metals and Cemented Carbides, no. 1, pp. 8-10, 2017. keywords: {waste rare earth phosphor;cerium;terbium;thermodynamics;acid decomposition;φ-pH diagram}