• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of fibrous adsorbent synthesized by radiation-induced graft polymerization for rare earth recovery

Research Project

Project/Area Number 17K00632
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental conscious materials and recycle
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Hoshina Hiroyuki  国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 先端機能材料研究部, 主幹研究員 (60446416)

Co-Investigator(Kenkyū-buntansha) 瀬古 典明  国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 先端機能材料研究部, 上席研究員 (10354953)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords金属吸着材 / レアアース / 抽出剤 / 放射線グラフト重合 / 繊維状不織布 / 資源回収 / レアアース(希土類) / 高分子吸着材 / 量子ビーム / 環境材料
Outline of Final Research Achievements

A fibrous adsorbent containing 2-ethylhexyl hydrogen-2-ethylhexylphosphonate (EHEP), a solvent extractant with a high affinity for rare earth for their efficient recovery. The adsorbent was synthesized by introducing methacrylate monomers with long alkyl chain onto non-woven fabric with radiation induced graft polymerization and the subsequent loading of EHEP by hydrophobic interactions. The adsorbent showed high adsorption capacity and selectivity for rare earths such as scandium and dysprosium, under acidic conditions. In addition, by introducing octadecyl methacrylate having long alkyl chains as the graft chain, the extractant could be loaded in a stable state and can therefore be used repeatedly.

Academic Significance and Societal Importance of the Research Achievements

本研究における高分子基材への抽出剤の担持方法は、放射線グラフト重合と疎水性相互作用とを相補的に組み合わせた担持方法であるため、分子構造が異なる様々な抽出剤にも応用展開が可能であり、多種多様な金属吸着材の創出に繋がることから学術的意義は大きい。また、抽出剤を付与した吸着材は夾雑金属が共存する条件においても、目的とする金属を選択的に吸着できることから、都市鉱山や環境水からのレアアース回収への適用が可能であり、金属資源の産出に繋がる成果であることから社会的に大きな意義がある。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water2021

    • Author(s)
      Hiroyuki Hoshina, Jinhua Chen, Haruyo Amada, Noriaki Seko
    • Journal Title

      polymers

      Volume: 13 Issue: 7 Pages: 1163-1163

    • DOI

      10.3390/polym13071163

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chain Entanglement of 2-Ethylhexyl Hydrogen-2-Ethylhexylphosphonate into Methacrylate-Grafted Nonwoven Fabrics for Applications in Separation and Recovery of Dy (III) and Nd (III) from Aqueous Solution2020

    • Author(s)
      Hiroyuki Hoshina, Jinhua Chen, Haruyo Amada, Noriaki Seko
    • Journal Title

      polymers

      Volume: 12 Issue: 11 Pages: 2656-2656

    • DOI

      10.3390/polym12112656

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Development of Adsorbent for Rare Earth Recovery Synthesized by Radiation Graft Polymerization2020

    • Author(s)
      Hiroyuki Hoshina, Haruyo Amada, Noriaki Seko
    • Organizer
      The 10th International Membrane Science and Technology Conference (IMSTEC2020)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of fibrous grafted adsorbent having 2-ethylhexyl hydrogen-2-ethylhexylphosphonate as a functional group2018

    • Author(s)
      Hiroyuki Hoshina
    • Organizer
      The 12th SPSJ International Polymer Conference(IPC2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi