| Identification of Complex Ions of Nb(V)in FLINAK-O~(2-)System by Infrared Spectra |
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| 引用本文： | 王新东,段淑贞,ChristensenE.,BjerrumN.J.. Identification of Complex Ions of Nb(V)in FLINAK-O~(2-)System by Infrared Spectra[J]. 稀有金属(英文版), 1993, 0(3) |
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| 作者姓名： | 王新东 段淑贞 ChristensenE. BjerrumN.J. |
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| 作者单位： | University of Science and Technology Beijing Beijing 100083，China，University of Science and Technology Beijing，Beijing 100083，China，The Technical University of Denmark，2800-Lyngby，Denmark，The Technical University of Denmark，2800-Lyngby，Denmark |
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| 摘 要： | The FT-IR spectra for K_2NbF_7-FLINAK-O~(2-) solution were measured and compared with the spectraof crystalline K_2NbF_7 and K_2NbOF_6.The results show that the niobium fluoro-complex and/oroxyfluoro-complex ions are presented in these solutions.NbF_7~(2-) complex ion is the predominant species inNb(V)-FLINAK solution(not considering oxide impurity).The influence of O~(2-) on the oxyfluoro-complexions shows that NbOF_6~(3-) as a stable monooxyfluoro-complex anion presented in FLINAK-O~(2-) systemsand the number of NbOF_6~(3-) species are increased with increasing of O~(2-) when molar ratio of O~(2-)/Nb(V)is less than 1.
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Identification of Complex Ions of Nb(V)in FLINAK-O~(2-)System by Infrared Spectra |
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| Wang Xindong Duan Shuzhen University of Science and Technology Beijing,Beijing ,ChinaChristensen E. Bjerrum N.J. Identification of Complex Ions of Nb(V)in FLINAK-O~(2-)System by Infrared Spectra[J]. Rare Metals, 1993, 0(3) |
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| Authors: | Wang Xindong Duan Shuzhen University of Science Technology Beijing Beijing ChinaChristensen E. Bjerrum N.J |
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| Affiliation: | Wang Xindong Duan Shuzhen University of Science and Technology Beijing,Beijing 100083,ChinaChristensen E. Bjerrum N.J. The Technical University of Denmark,2800-Lyngby,Denmark. |
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| Abstract: | The FT-IR spectra for K_2NbF_7-FLINAK-O~(2-) solution were measured and compared with the spectra of crystalline K_2NbF_7 and K_2NbOF_6.The results show that the niobium fluoro-complex and/or oxyfluoro-complex ions are presented in these solutions.NbF_7~(2-) complex ion is the predominant species in Nb(V)-FLINAK solution(not considering oxide impurity).The influence of O~(2-) on the oxyfluoro-complex ions shows that NbOF_6~(3-) as a stable monooxyfluoro-complex anion presented in FLINAK-O~(2-) systems and the number of NbOF_6~(3-) species are increased with increasing of O~(2-) when molar ratio of O~(2-)/Nb(V) is less than 1. |
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| Keywords: | Infrared spectra Niobium Fluoride melt Complex ion |
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