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JPS5723010A - Production of feromagnetic metal small piece comprising iron substantially in needle form - Google Patents

Production of feromagnetic metal small piece comprising iron substantially in needle form

Info

Publication number
JPS5723010A
JPS5723010A JP8453381A JP8453381A JPS5723010A JP S5723010 A JPS5723010 A JP S5723010A JP 8453381 A JP8453381 A JP 8453381A JP 8453381 A JP8453381 A JP 8453381A JP S5723010 A JPS5723010 A JP S5723010A
Authority
JP
Japan
Prior art keywords
feromagnetic
production
small piece
needle form
metal small
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP8453381A
Other languages
English (en)
Inventor
Jiigure Hansuieruku
Hainaa Raihi Hansu
Autsuen Horusuto
Shiyuteku Buerunaa
Reezaa Buerunaa
Hetsutsueru Ekuharuto
Ooringaa Manfureeto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of JPS5723010A publication Critical patent/JPS5723010A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Magnetic Record Carriers (AREA)
JP8453381A 1980-06-04 1981-06-03 Production of feromagnetic metal small piece comprising iron substantially in needle form Pending JPS5723010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803021111 DE3021111A1 (de) 1980-06-04 1980-06-04 Verfahren zur herstellung von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallteilchen

Publications (1)

Publication Number Publication Date
JPS5723010A true JPS5723010A (en) 1982-02-06

Family

ID=6103916

Family Applications (2)

Application Number Title Priority Date Filing Date
JP8453381A Pending JPS5723010A (en) 1980-06-04 1981-06-03 Production of feromagnetic metal small piece comprising iron substantially in needle form
JP1989125722U Expired JPH0431234Y2 (ja) 1980-06-04 1989-10-30

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1989125722U Expired JPH0431234Y2 (ja) 1980-06-04 1989-10-30

Country Status (4)

Country Link
US (1) US4378240A (ja)
EP (1) EP0041142B1 (ja)
JP (2) JPS5723010A (ja)
DE (2) DE3021111A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901027A1 (de) * 1989-01-14 1990-07-26 Studiengesellschaft Kohle Mbh Nadelfoermige eisen-magnetpigmente mit einstellbarer koezitivfeldstaerke und verfahren zu deren herstellung
DE69315935T2 (de) * 1992-09-10 1998-08-27 Kao Corp Verfahren und Vorrichtung zur Herstellung von magnetischen metallischen Teilchen
US5581998A (en) * 1994-06-22 1996-12-10 Craig; Joe D. Biomass fuel turbine combuster
US5666890A (en) * 1994-06-22 1997-09-16 Craig; Joe D. Biomass gasification system and method
US6443213B1 (en) * 2000-05-11 2002-09-03 Pcc Airfoils, Inc. System for casting a metal article using a fluidized bed
KR100977147B1 (ko) * 2007-12-31 2010-08-23 세메스 주식회사 유동층 탄소나노튜브 생성 장치 및 그것을 사용한탄소나노튜브 생성 설비 및 방법
CN102119120B (zh) * 2008-08-08 2013-08-07 株式会社东芝 纳米碳生成装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55157214A (en) * 1979-05-25 1980-12-06 Mitsui Toatsu Chem Inc Manufacture of magnetic recording powder

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033814B (de) * 1953-03-17 1958-07-10 Electro Chimie Metal Verfahren zur Herstellung magnetisierbarer Pulver und Dauermagnete aus solchen Pulvern
US2879154A (en) * 1956-10-02 1959-03-24 Franklin Inst Of The State Of Acicular metal particles and method of making the same
US2947620A (en) * 1957-08-06 1960-08-02 Republic Steel Corp Process of preparing iron powder capable of being rolled directly to sheet form
GB1104852A (en) 1964-05-21 1968-03-06 Jiyuichi Nara Powder-drying apparatus and plant including the same
GB1064406A (en) * 1965-10-23 1967-04-05 Hydrocarbon Research Inc Method of reducing iron oxide
NL6909443A (ja) * 1969-06-20 1970-12-22
FR2076745A5 (en) * 1970-01-27 1971-10-15 Siderurgie Fse Inst Rech Fluidised bed treatment - of powdered materials in two stages
DE2361539C2 (de) * 1973-12-11 1984-06-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur Herstellung eines ferromagnetischen, überwiegend aus Eisen bestehenden Materials
DE2434096C2 (de) 1974-07-16 1985-10-17 Basf Ag, 6700 Ludwigshafen Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung
DE2434058C2 (de) 1974-07-16 1985-12-19 Basf Ag, 6700 Ludwigshafen Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung
US3967986A (en) * 1975-01-27 1976-07-06 U.S. Philips Corporation Method of preparing ferromagnetic material
DE2646348C2 (de) 1976-10-14 1986-08-28 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadelförmigen, ferromagnetischen, im wesentlichen aus Eisen bestehenden Metallteilchen und deren Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern
DE2714588C2 (de) 1977-04-01 1986-06-05 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung nadelförmiger ferromagnetischer Eisenteilchen
DE2743298A1 (de) 1977-09-27 1979-04-05 Basf Ag Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen und verfahren zu deren herstellung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55157214A (en) * 1979-05-25 1980-12-06 Mitsui Toatsu Chem Inc Manufacture of magnetic recording powder

Also Published As

Publication number Publication date
DE3160523D1 (en) 1983-08-04
EP0041142A1 (de) 1981-12-09
US4378240A (en) 1983-03-29
JPH0431234Y2 (ja) 1992-07-28
DE3021111A1 (de) 1981-12-17
EP0041142B1 (de) 1983-06-29
JPH0269938U (ja) 1990-05-28

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