Behaviors of Interfacial Tension and Reaction Mechanism of Surface Active Species in Metal Extraction System by D2 EHPA.
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- Kim Hiroyoshi
- Dept. of Chem. Eng., Himeji Institute of Technology
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- Kanki Tatsuo
- Dept. of Chem. Eng., Himeji Institute of Technology
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- Asano Tsuyoshi
- Dept. of Chem. Eng., Himeji Institute of Technology
Bibliographic Information
- Other Title
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- D2EHPAによる金属イオン抽出系における界面張力の挙動と界面活性種の反応機構
- D2EHPA ニヨル キンゾク イオン チュウシュツケイ ニ オケル カイメン
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Abstract
Interfacial tensions of D 2 EHPA in benzene/aqueous solution systems were measured by the Wilhelmy plate method. Measurments were carried out for a metal ion-free system and for a system with cupric or ferric ion dissolved. In consequence, it is made clear that 1) the adsorption process is very rapid and the extractant can exist as a monomer or its dehydrogenized anion at the interface, 2) in cupric ion extraction systems, 1 : 2 complexes are formed but no intermediate metal-ligand complexes can exist at the interface, and 3) in ferric ion extraction systems, 1 : 2 intermediate complexes are formed and can adsorb with monomer extractants at the interface. The respective actual behaviors of the interfacial tension are shown to be explained well by Gibbs equation with the aid of the reaction model deduced from present experimental insights.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 22 (4), 837-845, 1996
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390282679487054464
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- NII Article ID
- 10002669179
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- NII Book ID
- AN00037234
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- COI
- 1:CAS:528:DyaK28XktlKgtL0%3D
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- ISSN
- 13499203
- 0386216X
- http://id.crossref.org/issn/0386216X
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- NDL BIB ID
- 3995440
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed