Title:
METHOD FOR RECOVERING Nd2Fe14B PARTICLE FROM BULK-SINTERED Nd-Fe-B MAGNET AND/OR MAGNET SCRAP BY ELECTROCHEMICAL ETCHING
Document Type and Number:
Japanese Patent JP2020084331
Kind Code:
A
Abstract:
To provide a more environmentally friendly and cost-effective method for recycling Nd-Fe-B magnet/Nd-Fe-B magnet scrap after its service life.SOLUTION: In a method for recovering NdFeB particle from a bulk-sintered Nd-Fe-B magnet and/or a magnet scrap, Nd-Fe-B magnet 1 and/or magnet scrap are anodized by using a non-aqueous liquid electrolyte 5, and by the anodization NdFeB particle 6 in the Nd-Fe-B magnet 1 and/or magnet scrap is released. The released NdFeB particle 6 is recovered during and/or after the anodization.SELECTED DRAWING: Figure 1
Inventors:
XU XUAN
STURM SASO
ZUZEK ROZMAN KRISTINA
STURM SASO
ZUZEK ROZMAN KRISTINA
Application Number:
JP2019213434A
Publication Date:
June 04, 2020
Filing Date:
November 26, 2019
Export Citation:
Assignee:
INST JOZEF STEFAN
International Classes:
C25D11/34; B09B3/00; B09B5/00; C22B3/16; C22B3/22; C22B7/00; C22B59/00; C25F3/02; C25F3/06
Domestic Patent References:
| JP2012087329A | 2012-05-10 | |||
| JP2000030919A | 2000-01-28 |
Foreign References:
| WO2018015331A1 | 2018-01-25 |
Attorney, Agent or Firm:
Enami Tomokazu