2017 Fiscal Year Final Research Report
Development and improvement of boron-selective separation methods using multi-functional resins
| Project/Area Number |
15K05551
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Analytical chemistry
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| Research Institution | Konan University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
CHAYAMA Kenji 甲南大学, 理工学部, 教授 (10188493)
ISHIHARA Koji 早稲田大学, 理工学術院, 教授 (20168248)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 固相抽出 / ホウ素 / 分離技術 / 樹脂開発 |
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| Outline of Final Research Achievements |
Novel hybrid (bifunctional) resins having both chelating ligand and counter cation moieties were investigated to establish effective aqueous boron separation. The hybrid resins having N-methyl-D-glucamine ligand and ammonium parts showed high chemosorption ability of boric acid at pH > ca. 10, whose ability was comparable to or more than that of commercially available boron-removing resins. In contrast, these resins desorbed almost quantitatively at pH 2. The results strongly suggest that the chelating ligand-cation hybrid resins is useful for a “gently pH-controlled” adsorption-desorption process of aqueous boron compounds, where weakly basic (pH 10)/acidic (pH 2) conditions are needed.
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| Free Research Field |
分析化学
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