Selective Extraction of Scandium from Transition Metals by Synergistic Extraction with 2-Thenoyltrifluoroacetone and Tri-<i>n</i>-octylphosphine Oxide
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- ZHAO Zhigang
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- KUBOTA Fukiko
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- KAMIYA Noriho
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University Center for Future Chemistry, Kyushu University
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- GOTO Masahiro
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University Center for Future Chemistry, Kyushu University
Bibliographic Information
- Other Title
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- Selective Extraction of Scandium from Transition Metals by Synergistic Extraction with 2-Thenoyltrifluoroacetone and Tri-n-octylphosphine Oxide
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Abstract
There has been an increasing demand for scandium (Sc). However the supply is insufficient because the separation and recovery of Sc as a byproduct from ores is difficult. In this study, extraction and separation of Sc3+ from a sulfuric acid solution containing transition metals such as Al3+, Fe3+, Mn2+, Co2+, Ni2+ and Zn2+ was investigated using a β-diketone, HTTA and a neutral extractant, TOPO. Due to the synergistic effect with the two extractants, Sc3+ was effectively and selectively separated even from Fe3+, the separation of which is difficult with HTTA alone. The extraction mechanism was examined and it was revealed that Sc3+ is extracted with three HTTA and one TOPO molecules. Scandium was readily stripped from the extracting phase by 1 M sulfuric acid. The potential use of the combination of the β-diketone with TOPO for the recovery of Sc3+ in a refining process was demonstrated.
Journal
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- Solvent Extraction Research and Development, Japan
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Solvent Extraction Research and Development, Japan 23 (2), 137-143, 2016
Japan Association of Solvent Extraction
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Details 詳細情報について
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- CRID
- 1390282680717637632
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- NII Article ID
- 130005152881
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- NII Book ID
- AA11114608
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- ISSN
- 21884765
- 13417215
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- NDL BIB ID
- 027448429
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed