Separation of Neodymium and Dysprosium by Flocculation Method for the Recovery of Rare-earth Elements from Waste Magnets

• Murakami Hajime

  Hitachi Research Laboratory, Hitachi Ltd.

• Sasaki Hiroshi

  Hitachi Research Laboratory, Hitachi Ltd.

• Yasuda Toshio

  Hitachi Research Laboratory, Hitachi Ltd.

• Yamamoto Hiroki

  Hitachi Research Laboratory, Hitachi Ltd.

• Takashina Akiko

  Institute of Applied Beam Science, Ibaraki University

• Kohzuma Takamitsu

  Institute of Applied Beam Science, Ibaraki University

抄録

The flocculation method using polymer materials and water solvent was applied to the separation of Nd and Dy. Dy was precipitated preferentially from Dy and Nd mixture solution by poly(allylamine) and adipic acid as flocculation agents. The recovery ratio of Dy was 80%, and the purity of Dy was 76% by optimization of the molar ratio of the amino group of poly(allylamine) to rare-earth metal ions.

収録刊行物

• Chemistry Letters

  Chemistry Letters 44 (7), 1028-1030, 2015

  公益社団法人 日本化学会

キーワード

• General Chemistry

詳細情報

• CRID: 1390001204588385920
• NII論文ID: 130005085170
• DOI: 10.1246/cl.150315
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/44/7/1028/55644869/cl.150315.pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可