Title:
METHOD FOR PRODUCING COBALT FERRITE PARTICLES AND COBALT FERRITE PARTICLES PRODUCED BY SAME
Document Type and Number:
WIPO Patent Application WO/2020/217982
Kind Code:
A1
Abstract:
Provided are magnetic particles (cobalt ferrite) having a uniform particle size with a µm-scale average particle size. Desired cobalt ferrite particles are obtained by subjecting a cobalt ferrite precursor to a heating treatment in the presence of a sulfite salt.
Inventors:
MURATANI NAOKI (JP)
ARAI TSUBASA (JP)
KISHIMOTO AKIRA (JP)
ARAI TSUBASA (JP)
KISHIMOTO AKIRA (JP)
Application Number:
PCT/JP2020/015761
Publication Date:
October 29, 2020
Filing Date:
April 08, 2020
Export Citation:
Assignee:
NITTETSU MINING CO LTD (JP)
International Classes:
C01G49/00; C01G51/00; H01F1/34
Domestic Patent References:
WO1996028269A1 | 1996-09-19 |
Foreign References:
CN109574087A | 2019-04-05 | |||
CN101774646A | 2010-07-14 | |||
JPH0527481A | 1993-02-05 | |||
JP2016221807A | 2016-12-28 | |||
JP2017020539A | 2017-01-26 | |||
JP2004346272A | 2004-12-09 | |||
JP4138344B2 | 2008-08-27 | |||
JPH0324412B2 | 1991-04-03 | |||
JPS6047722A | 1985-03-15 | |||
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JPH05275224A | 1993-10-22 | |||
JP4113045B2 | 2008-07-02 | |||
JPH11131102A | 1999-05-18 |
Other References:
NGUYEN VIET LONG, YANG YONG, TERANISHI TOSHIHARU, THI CAO MINH, CAO YANQIN, NOGAMI MASAYUKI: "Synthesis and magnetism of hierarchical iron oxide particles", MATERIALS AND DESIGN, vol. 86, 1 December 2015 (2015-12-01), pages 797 - 808, XP055758704, ISSN: 0264-1275, DOI: 10.1016/j.matdes.2015.07.157
See also references of EP 3960706A4
See also references of EP 3960706A4
Attorney, Agent or Firm:
MOEGI PATENT OFFICE (JP)
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