2021 Fiscal Year Final Research Report
Material separation utilizing magneto-Archimedes levitation under a high magnetic field gradient.
| Project/Area Number |
19K12403
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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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| Review Section |
Basic Section 64030:Environmental materials and recycle technology-related
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
Miura Osuke 東京都立大学, システムデザイン研究科, 教授 (50281241)
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| Co-Investigator(Kenkyū-buntansha) |
小方 聡 東京都立大学, システムデザイン研究科, 准教授 (50315751)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 磁気アルキメデス浮上 / 高勾配磁気分離 |
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| Outline of Final Research Achievements |
In this study, in order to separate and recover valuable substances from a solid mixture under a low magnetic field, the magnetic Archimedes levitation force is significantly increased by using a high magnetic field gradient generated by optimally arranging ferromagnetic materials in the magnetic field. The improvement and the uniformity of the magnetic field in the horizontal direction were realized. For further practical use, we examined a continuous separation and recovery system using a race track type magnet. As a result, in a relatively low magnetic field, a system that stably floats major metals and plastic pieces of several tens to 0.1 mm in a manganese chloride aqueous solution to a unique position within 5 seconds and separates and recovers them in a flow field. We also applied a similar method in the horizontal direction to develop a method for separating a specific substance from a free-falling solid mixture by magnetic force.
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| Free Research Field |
超伝導材料・超伝導応用・磁気力応用
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では物質固有な物理定数である密度と磁化率のみをパラメーターとして重力と磁気力を駆動力とする「磁気アルキメデス浮上」に着目し、物理的手法のみによる混合物からの物質の選択分離・回収の実現を目指した。超伝導マグネットの磁場中心に強磁性体円柱を格子状に安定浮上配置させるという独自の手法を用い、磁気力ファクターを大幅に増大させ、レーストラック型NbTi超伝導マグネットがオープン空間に発生する強い磁気力を利用した物質の連続磁気浮上分離回収システムを考案した。これにより混合物からの有価金属回収や構造異性体、たんぱく質、各種抗体を装飾した磁気ビーズなど様々な有価物質の効率的な分離回収が可能となる。
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