FR2034119A1 - Prepn of ferrites - Google Patents

Prepn of ferrites

Info

Publication number
FR2034119A1
FR2034119A1 FR6902782A FR6902782A FR2034119A1 FR 2034119 A1 FR2034119 A1 FR 2034119A1 FR 6902782 A FR6902782 A FR 6902782A FR 6902782 A FR6902782 A FR 6902782A FR 2034119 A1 FR2034119 A1 FR 2034119A1
Authority
FR
France
Prior art keywords
prepn
ferrites
autoclaved
hrs
ferrite
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.)
Granted
Application number
FR6902782A
Other languages
French (fr)
Other versions
FR2034119B1 (en
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.)
Ugine Kuhlmann SA
Original Assignee
Ugine Kuhlmann SA
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 Ugine Kuhlmann SA filed Critical Ugine Kuhlmann SA
Priority to FR6902782A priority Critical patent/FR2034119A1/en
Priority to BE744215D priority patent/BE744215A/en
Priority to NL7000901A priority patent/NL7000901A/xx
Priority to DE19702003438 priority patent/DE2003438A1/en
Priority to JP45010093A priority patent/JPS496636B1/ja
Publication of FR2034119A1 publication Critical patent/FR2034119A1/en
Application granted granted Critical
Publication of FR2034119B1 publication Critical patent/FR2034119B1/fr
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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/34—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 soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—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 soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

An aqueous soln (pH >=8) of at least one divalent metal salt selected from Mn, Fe, Co, Ni, Cu, Zn Mg is mixed with pure Fe(OH)3 in more than the stoichiometric amount and autoclaved at 200-300 degrees for 2-6 hrs to dissolve the Fe(OH)3. Upon cooling, the resultant fine crystals of ferrite are filtered and washed.
FR6902782A 1969-02-07 1969-02-07 Prepn of ferrites Granted FR2034119A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR6902782A FR2034119A1 (en) 1969-02-07 1969-02-07 Prepn of ferrites
BE744215D BE744215A (en) 1969-02-07 1970-01-09 FERRITE PREPARATION PROCESS
NL7000901A NL7000901A (en) 1969-02-07 1970-01-22
DE19702003438 DE2003438A1 (en) 1969-02-07 1970-01-27 Process for the production of ferrites
JP45010093A JPS496636B1 (en) 1969-02-07 1970-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6902782A FR2034119A1 (en) 1969-02-07 1969-02-07 Prepn of ferrites

Publications (2)

Publication Number Publication Date
FR2034119A1 true FR2034119A1 (en) 1970-12-11
FR2034119B1 FR2034119B1 (en) 1975-07-04

Family

ID=9028743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6902782A Granted FR2034119A1 (en) 1969-02-07 1969-02-07 Prepn of ferrites

Country Status (5)

Country Link
JP (1) JPS496636B1 (en)
BE (1) BE744215A (en)
DE (1) DE2003438A1 (en)
FR (1) FR2034119A1 (en)
NL (1) NL7000901A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078893A (en) * 1973-11-16 1975-06-26
WO1996015078A1 (en) * 1994-11-15 1996-05-23 Philips Electronics N.V. Moulding of sintered hexagonal ferrite material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112279A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Semiconductor device
DE3143046A1 (en) * 1981-10-30 1983-05-05 Basf Ag, 6700 Ludwigshafen Barium ferrite, a process for its preparation, and its use as coloured pigment
DE3537624A1 (en) * 1985-10-23 1987-04-23 Bayer Ag FINE-PART ISOMETRIC HEXAFERRITE PIGMENTS, METHOD FOR THE PRODUCTION AND USE THEREOF
DE3633130A1 (en) * 1986-09-30 1988-03-31 Basf Ag FINE-PARTIC, SPHERICAL, TWO-LAYER SOLID PARTICLES
EP4310869A1 (en) 2021-03-19 2024-01-24 Hide Technology, LLC Layered body of conductor and insulation film, coil, and rotary electric machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078893A (en) * 1973-11-16 1975-06-26
JPS5635005B2 (en) * 1973-11-16 1981-08-14
WO1996015078A1 (en) * 1994-11-15 1996-05-23 Philips Electronics N.V. Moulding of sintered hexagonal ferrite material

Also Published As

Publication number Publication date
JPS496636B1 (en) 1974-02-15
BE744215A (en) 1970-06-15
DE2003438A1 (en) 1970-09-03
FR2034119B1 (en) 1975-07-04
NL7000901A (en) 1970-08-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse