BE848026A - Procede de preparation de l'oxyde de fer gamma -(iii) - Google Patents

Procede de preparation de l'oxyde de fer gamma -(iii)

Info

Publication number
BE848026A
BE848026A BE172104A BE172104A BE848026A BE 848026 A BE848026 A BE 848026A BE 172104 A BE172104 A BE 172104A BE 172104 A BE172104 A BE 172104A BE 848026 A BE848026 A BE 848026A
Authority
BE
Belgium
Prior art keywords
gamma
iii
iron oxide
preparation process
oxide preparation
Prior art date
Application number
BE172104A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE848026A publication Critical patent/BE848026A/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70647—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides with a skin
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/11—Powder tap density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
BE172104A 1975-11-08 1976-11-05 Procede de preparation de l'oxyde de fer gamma -(iii) BE848026A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2550307A DE2550307C3 (de) 1975-11-08 1975-11-08 Verfahren zur Herstellung von nadeiförmigem Y-Eisen(ni)-Oxid

Publications (1)

Publication Number Publication Date
BE848026A true BE848026A (fr) 1977-05-05

Family

ID=5961308

Family Applications (1)

Application Number Title Priority Date Filing Date
BE172104A BE848026A (fr) 1975-11-08 1976-11-05 Procede de preparation de l'oxyde de fer gamma -(iii)

Country Status (5)

Country Link
US (1) US4061725A (en:Method)
JP (1) JPS6031770B2 (en:Method)
BE (1) BE848026A (en:Method)
DE (1) DE2550307C3 (en:Method)
FR (1) FR2330651A1 (en:Method)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2805621A1 (de) * 1978-02-10 1979-08-23 Basf Ag Verfahren zur herstellung von nadelfoermigen, ferrimagnetischen eisenoxiden
DE2935358A1 (de) * 1979-09-01 1981-03-26 Basf Ag, 67063 Ludwigshafen Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung
JPS62167222A (ja) * 1986-01-17 1987-07-23 Showa Denko Kk レピツドクロサイトの製造方法
US5069216A (en) * 1986-07-03 1991-12-03 Advanced Magnetics Inc. Silanized biodegradable super paramagnetic metal oxides as contrast agents for imaging the gastrointestinal tract
US5219554A (en) * 1986-07-03 1993-06-15 Advanced Magnetics, Inc. Hydrated biodegradable superparamagnetic metal oxides
JP2931182B2 (ja) * 1992-07-17 1999-08-09 石原産業株式会社 針状γ−ＦｅＯＯＨの製造方法
ITMI20020567A1 (it) * 2002-03-18 2003-09-18 Sud Chemie S R L Processo per la preparazione di ossidi di ferro

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756143A (fr) * 1969-09-16 1971-03-15 Eastman Kodak Co Procede de preparation d'oxyde de fer, aciculaire, ou goethite utilisable pour la production d'oxyde de fer fe2o3 magnetique
BE792847A (fr) * 1971-12-17 1973-06-15 Bayer Ag Procede de preparation d'oxydes de fer magnetiques aciculaires
BE794292A (fr) * 1972-01-21 1973-07-19 Bayer Ag Procede de preparation d'oxydes de fer magnetiques aciculaires finement divises
US3845198A (en) * 1972-05-03 1974-10-29 Bell & Howell Co Acicular gamma iron oxide process

Also Published As

Publication number Publication date
FR2330651A1 (fr) 1977-06-03
DE2550307C3 (de) 1978-07-06
DE2550307B1 (de) 1977-11-17
FR2330651B1 (en:Method) 1981-06-19
JPS5259096A (en) 1977-05-16
JPS6031770B2 (ja) 1985-07-24
DE2550307A1 (de) 1977-05-18
US4061725A (en) 1977-12-06

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BASF A.G.

Effective date: 19931130