Development of eco-friendly separation techniques for critical metals based on liquid-liquid and solid-liquid extraction systems.
| Project/Area Number |
25420806
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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 |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Kyushu University |
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Principal Investigator |
Kubota Fukiko 九州大学, 工学研究院, 助教 (60294899)
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| Co-Investigator(Kenkyū-buntansha) |
後藤 雅宏 九州大学, 工学研究院, 教授 (10211921)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | レアメタル / 分離回収 / 抽出 / 吸着 / イオン交換 / 希土類 / 貴金属 / リサイクル |
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| Outline of Final Research Achievements |
Critical metals such as precious metals and rare earth metals are of great importance due to their wide application in various high-tech industries. A highly efficient and eco-friendly separation technique for the recovery of such metals from various resources is required. In this study, novel separation systems based on solvent extraction were developed using ionic liquids (ILs) and novel extractants, which we designed for the critical metals. The ILs were evaluated as an extractant without dilution for the separation of precious metals. A novel amic acid extractant, D2EHAG was shown to be effective for the recovery of the critical metals. These extractants were prepared as an adsorbent or ion exchange resin. It was demonstrated that it was important to create the reaction site favorable for a metal extraction at liquid-liquid or solid-liquid interface for the efficient extraction of the metal ion.
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Report
(5 results)
Research Products
(52 results)
