JPH0475641B2 - - Google Patents

Info

Publication number
JPH0475641B2
JPH0475641B2 JP58139512A JP13951283A JPH0475641B2 JP H0475641 B2 JPH0475641 B2 JP H0475641B2 JP 58139512 A JP58139512 A JP 58139512A JP 13951283 A JP13951283 A JP 13951283A JP H0475641 B2 JPH0475641 B2 JP H0475641B2
Authority
JP
Japan
Prior art keywords
feooh
iron
weight
metal
hydrogen
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.)
Expired - Lifetime
Application number
JP58139512A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5944809A (ja
Inventor
Shutetsuku Uerunaa
Rudorufu Peetaa
Zaruneki Uiruherumu
Reezaa Uerunaa
Kofuakusu Ieene
Yakushu Herumuuto
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 JPS5944809A publication Critical patent/JPS5944809A/ja
Publication of JPH0475641B2 publication Critical patent/JPH0475641B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP58139512A 1982-07-31 1983-08-01 実質的に鉄より成る針状フエロ磁性金属粒子の製造法 Granted JPS5944809A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823228669 DE3228669A1 (de) 1982-07-31 1982-07-31 Verfahren zur herstellung nadelfoermiger, im wesentlichen aus eisen bestehender ferromagnetischer metallteilchen
DE3228669.4 1982-07-31

Publications (2)

Publication Number Publication Date
JPS5944809A JPS5944809A (ja) 1984-03-13
JPH0475641B2 true JPH0475641B2 (enExample) 1992-12-01

Family

ID=6169825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58139512A Granted JPS5944809A (ja) 1982-07-31 1983-08-01 実質的に鉄より成る針状フエロ磁性金属粒子の製造法

Country Status (4)

Country Link
US (1) US4439231A (enExample)
EP (1) EP0105110B1 (enExample)
JP (1) JPS5944809A (enExample)
DE (2) DE3228669A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181210A (ja) * 1984-02-27 1985-09-14 Fuji Photo Film Co Ltd 強磁性金属粉末の製造方法
JPS6161404A (ja) * 1984-08-31 1986-03-29 Sony Corp 金属磁性粉末の製造方法
JPS6161405A (ja) * 1984-08-31 1986-03-29 Sony Corp 金属磁性粉末の製造方法
JPS61154013A (ja) * 1984-12-27 1986-07-12 Mitsui Toatsu Chem Inc 磁気記録用針状性鉄微粒子の製造方法
JPS61126628U (enExample) * 1985-01-28 1986-08-08
DE3516884A1 (de) * 1985-05-10 1986-11-13 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung nadelfoermiger, im wesentlichen aus eisen bestehender ferromagnetischer metallteilchen
JP2843124B2 (ja) * 1990-07-02 1999-01-06 花王株式会社 金属磁性粉末の製造方法
US5570017A (en) * 1992-09-30 1996-10-29 Canada Conveyor Belt Co., Inc. Apparatus and method of damage detection for magnetically permeable members using an alternating magnetic field and hall effect sensors
USD425189S (en) 1996-04-26 2000-05-16 Donaldson Company, Inc. Combined filter element and frame therefor
DE102010061495A1 (de) * 2010-12-22 2012-06-28 Bundesanstalt für Materialforschung und -Prüfung (BAM) Additive für die carbothermische Reduktion von Metalloxiden zu den entsprechenden Metallen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1592398A1 (de) * 1967-02-08 1970-12-17 Bayer Ag Verwendung von hochkoerzitivem nadelfoermigem gamma-Fe2O3 zur Herstellung von Magnetogrammtraegern
NL162233C (nl) * 1968-03-05 1980-04-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel poeder, voor magnetische registratie.
NL163355C (nl) * 1969-04-08 1980-08-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel metaalpoeder, voor magnetische registratie.
US3889319A (en) * 1973-10-23 1975-06-17 Crompton & Knowles Corp Method and system for producing blended textile fibrous materials
DE2434058C2 (de) * 1974-07-16 1985-12-19 Basf Ag, 6700 Ludwigshafen Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung
JPS51121799A (en) * 1975-04-18 1976-10-25 Fujitsu Ltd Manufacturing method of electlet and piezoeiectric material
JPS52122213A (en) * 1976-04-05 1977-10-14 Hitachi Ltd Production of ferromagnetic metal powder
JPS52144400A (en) * 1976-05-27 1977-12-01 Toda Kogyo Corp Process for preparing magnetic ironoxide particle for magnetic recording 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
DE2731845A1 (de) * 1977-07-14 1979-01-25 Devender Dr Ing Dhingra Verfahren zur herstellung von metallpulvern
DE2743298A1 (de) * 1977-09-27 1979-04-05 Basf Ag Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen und verfahren zu deren herstellung
JPS5573803A (en) * 1978-11-25 1980-06-03 Hitachi Maxell Ltd Production of magnetic alloy powder
DE2935358A1 (de) * 1979-09-01 1981-03-26 Basf Ag, 67063 Ludwigshafen Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung
JPS5946282B2 (ja) * 1979-12-11 1984-11-12 戸田工業株式会社 金属鉄又は鉄を主成分とする合金磁性粒子粉末の製造法
JPS5754205A (ja) * 1980-09-17 1982-03-31 Hitachi Maxell Ltd Jiseifunnoseizohoho

Also Published As

Publication number Publication date
EP0105110A3 (en) 1985-11-21
EP0105110A2 (de) 1984-04-11
EP0105110B1 (de) 1987-11-11
DE3228669A1 (de) 1984-02-02
JPS5944809A (ja) 1984-03-13
DE3374480D1 (en) 1987-12-17
US4439231A (en) 1984-03-27

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