TWI221299B - Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet - Google Patents

Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet Download PDF

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Publication number
TWI221299B
TWI221299B TW91115649A TW91115649A TWI221299B TW I221299 B TWI221299 B TW I221299B TW 91115649 A TW91115649 A TW 91115649A TW 91115649 A TW91115649 A TW 91115649A TW I221299 B TWI221299 B TW I221299B
Authority
TW
Taiwan
Prior art keywords
rare earth
magnet
sludge
earth magnet
metal
Prior art date
Application number
TW91115649A
Other languages
English (en)
Inventor
Koichi Hirota
Takehisa Minowa
Original Assignee
Shinetsu Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Application granted granted Critical
Publication of TWI221299B publication Critical patent/TWI221299B/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B59/00—Obtaining rare earth metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C22B7/002—Dry processes by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Description

1221299 A8 B8 C8 D8 六、申請專利範圍 9 ·如申請專利範圍第8項之R - F e - B系稀土類磁 鐵廢料及/或熔渣之再熔解方法，其爲使用所得之R - F e - B系稀土類合金，將該合金粉碎，成形，燒結以得到 稀土類燒結磁鐵者。 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）
TW91115649A 2001-07-10 2002-07-10 Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet TWI221299B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001209203 2001-07-10
JP2001209207 2001-07-10

Publications (1)

Publication Number Publication Date
TWI221299B true TWI221299B (en) 2004-09-21

Family

ID=26618431

Family Applications (1)

Application Number Title Priority Date Filing Date
TW91115649A TWI221299B (en) 2001-07-10 2002-07-10 Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet

Country Status (6)

Country Link
US (2) US6960240B2 (zh)
EP (1) EP1275741B1 (zh)
KR (1) KR100853089B1 (zh)
CN (1) CN1265002C (zh)
DE (1) DE60227612D1 (zh)
TW (1) TWI221299B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401704B (zh) * 2004-06-22 2013-07-11 Shinetsu Chemical Co R-Fe-B rare earth permanent magnet material
TWI417906B (zh) * 2005-03-23 2013-12-01 Shinetsu Chemical Co 機能分級式稀土族永久磁鐵

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JP5437544B2 (ja) * 2001-06-11 2014-03-12 株式会社三徳 二次電池用負極の製造法
KR100516512B1 (ko) * 2003-10-15 2005-09-26 자화전자 주식회사 본드자석용 마이크로 결정구조의 고보자력 자석분말제조방법 및 이에 의해 제조된 자석분말
JP4747562B2 (ja) 2004-06-25 2011-08-17 株式会社日立製作所 希土類磁石及びその製造方法、並びに磁石モータ
JP4654709B2 (ja) * 2004-07-28 2011-03-23 株式会社日立製作所 希土類磁石
CN1898757B (zh) * 2004-10-19 2010-05-05 信越化学工业株式会社 稀土永磁材料的制备方法
MY141999A (en) * 2005-03-23 2010-08-16 Shinetsu Chemical Co Functionally graded rare earth permanent magnet
TWI364765B (en) * 2005-03-23 2012-05-21 Shinetsu Chemical Co Rare earth permanent magnet
TWI413136B (zh) * 2005-03-23 2013-10-21 Shinetsu Chemical Co 稀土族永久磁體
JP4796788B2 (ja) * 2005-05-10 2011-10-19 株式会社日立製作所 コアレスモータ
US7559996B2 (en) * 2005-07-22 2009-07-14 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine
JP2007116088A (ja) * 2005-09-26 2007-05-10 Hitachi Ltd 磁性材料，磁石及び回転機
US7955443B2 (en) * 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
JP4605396B2 (ja) * 2006-04-14 2011-01-05 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4753030B2 (ja) * 2006-04-14 2011-08-17 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4656323B2 (ja) * 2006-04-14 2011-03-23 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4840606B2 (ja) * 2006-11-17 2011-12-21 信越化学工業株式会社 希土類永久磁石の製造方法
JP5359192B2 (ja) * 2007-11-12 2013-12-04 パナソニック株式会社 異方性永久磁石型モータ
JP5273241B2 (ja) * 2009-02-27 2013-08-28 国立大学法人大阪大学 Ｒｅ−ｔｍ系混合物からの希土類元素の回収方法
CN103898400B (zh) * 2012-12-31 2016-08-10 比亚迪股份有限公司 一种回收钕铁硼磁性材料的方法
WO2014205002A2 (en) 2013-06-17 2014-12-24 Miha Zakotnik Magnet recycling to create nd-fe-b magnets with improved or restored magnetic performance
CN104651612B (zh) * 2013-11-19 2017-06-20 荆门市格林美新材料有限公司 熔融稀土废料回收稀土的方法
JP6229846B2 (ja) * 2014-03-28 2017-11-15 三菱マテリアル株式会社 希土類元素と鉄の分離回収方法
DE102014206223A1 (de) 2014-04-01 2015-10-01 Fme Freiberger Metallrecycling Und Entwicklungsdienstleistungen Gmbh Verfahren zur Rückgewinnung Seltener Erden aus Seltene Erden-haltigen Zusammensetzungen
WO2016014110A1 (en) * 2014-07-21 2016-01-28 Iowa State University Research Foundation, Inc. Recovering heavy rare earth metals from magnet scrap
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
DE102014224015B4 (de) 2014-11-25 2019-07-04 Fme Freiberger Metallrecycling Und Entwicklungsdienstleistungen Gmbh Verfahren zur Rückgewinnung Seltener Erden aus Seltene Erden-haltigen Leuchtstoffen
CN104388684A (zh) * 2014-12-11 2015-03-04 内蒙古科技大学 一种稀土综合废料制取稀土氧化物熔渣的方法以及从熔渣中浸出稀土的方法
US10715837B2 (en) * 2015-03-13 2020-07-14 At&T Intellectual Property I, L.P. Determination of a service office of a media content distribution system to record a media content item with a network recorder
CN107275029B (zh) * 2016-04-08 2018-11-20 沈阳中北通磁科技股份有限公司 一种用钕铁硼废料生产的高性能钕铁硼永磁铁及制造方法
CN107275024B (zh) * 2016-04-08 2018-11-23 沈阳中北通磁科技股份有限公司 一种含有氮化物相的高性能钕铁硼永磁铁及制造方法
CN107275025B (zh) * 2016-04-08 2019-04-02 沈阳中北通磁科技股份有限公司 一种含铈钕铁硼磁钢及制造方法
CN108359798A (zh) * 2017-06-03 2018-08-03 江西离子型稀土工程技术研究有限公司 一种快速高效回收利用钕铁硼废料的方法
KR102411584B1 (ko) * 2018-10-22 2022-06-20 주식회사 엘지화학 소결 자석의 제조 방법 및 소결 자석
KR102589893B1 (ko) * 2019-09-26 2023-10-16 주식회사 엘지화학 소결 자석의 제조 방법 및 소결 자석
KR102261143B1 (ko) * 2020-07-02 2021-06-07 성림첨단산업(주) 희토류 영구자석의 제조방법

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401704B (zh) * 2004-06-22 2013-07-11 Shinetsu Chemical Co R-Fe-B rare earth permanent magnet material
TWI417906B (zh) * 2005-03-23 2013-12-01 Shinetsu Chemical Co 機能分級式稀土族永久磁鐵

Also Published As

Publication number Publication date
KR20030007079A (ko) 2003-01-23
US20060000522A1 (en) 2006-01-05
EP1275741A1 (en) 2003-01-15
CN1407121A (zh) 2003-04-02
US7204891B2 (en) 2007-04-17
KR100853089B1 (ko) 2008-08-19
CN1265002C (zh) 2006-07-19
EP1275741B1 (en) 2008-07-16
US6960240B2 (en) 2005-11-01
DE60227612D1 (de) 2008-08-28
US20030106615A1 (en) 2003-06-12

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