NL8002522A - Werkwijze voor het bereiden van gehydrateerd ijzer- oxyde. - Google Patents

Werkwijze voor het bereiden van gehydrateerd ijzer- oxyde. Download PDF

Info

Publication number
NL8002522A
NL8002522A NL8002522A NL8002522A NL8002522A NL 8002522 A NL8002522 A NL 8002522A NL 8002522 A NL8002522 A NL 8002522A NL 8002522 A NL8002522 A NL 8002522A NL 8002522 A NL8002522 A NL 8002522A
Authority
NL
Netherlands
Prior art keywords
iron
goethite
aqueous solution
reaction
base
Prior art date
Application number
NL8002522A
Other languages
English (en)
Dutch (nl)
Original Assignee
Tdk Electronics Co Ltd
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 Tdk Electronics Co Ltd filed Critical Tdk Electronics Co Ltd
Publication of NL8002522A publication Critical patent/NL8002522A/nl

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70626Record 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
    • G11B5/70642Record 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
    • G11B5/70652Record 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/02Oxides; Hydroxides
    • C01G49/06Ferric oxide [Fe2O3]
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/10Particle morphology extending in one dimension, e.g. needle-like
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/54Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/61Micrometer sized, i.e. from 1-100 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/42Magnetic properties
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
NL8002522A 1979-05-11 1980-05-01 Werkwijze voor het bereiden van gehydrateerd ijzer- oxyde. NL8002522A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5701979 1979-05-11
JP5701979A JPS55149136A (en) 1979-05-11 1979-05-11 Manufacture of iron oxide hydrate

Publications (1)

Publication Number Publication Date
NL8002522A true NL8002522A (nl) 1980-11-13

Family

ID=13043715

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8002522A NL8002522A (nl) 1979-05-11 1980-05-01 Werkwijze voor het bereiden van gehydrateerd ijzer- oxyde.

Country Status (4)

Country Link
JP (1) JPS55149136A (enrdf_load_stackoverflow)
DE (1) DE3017526A1 (enrdf_load_stackoverflow)
GB (1) GB2051025A (enrdf_load_stackoverflow)
NL (1) NL8002522A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5678430A (en) * 1979-11-29 1981-06-27 Mitsui Toatsu Chem Inc Production of iron compound particle for magnetic recording
EP0160496B1 (en) * 1984-04-28 1989-09-13 Toda Kogyo Corp. Magnetic iron oxide particles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117518B2 (enrdf_load_stackoverflow) * 1973-07-26 1976-06-02
JPS5166499A (enrdf_load_stackoverflow) * 1974-12-06 1976-06-09 Masahito Takeda

Also Published As

Publication number Publication date
DE3017526A1 (de) 1980-11-13
GB2051025A (en) 1981-01-14
JPS6242856B2 (enrdf_load_stackoverflow) 1987-09-10
JPS55149136A (en) 1980-11-20

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