DE2349112A1 - Verfahren zur herstellung von goethitpulver - Google Patents

Verfahren zur herstellung von goethitpulver

Info

Publication number
DE2349112A1
DE2349112A1 DE19732349112 DE2349112A DE2349112A1 DE 2349112 A1 DE2349112 A1 DE 2349112A1 DE 19732349112 DE19732349112 DE 19732349112 DE 2349112 A DE2349112 A DE 2349112A DE 2349112 A1 DE2349112 A1 DE 2349112A1
Authority
DE
Germany
Prior art keywords
powder
goethite
hydroxide
iron
suspension
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
DE19732349112
Other languages
German (de)
English (en)
Inventor
Tokio Nakamura
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of DE2349112A1 publication Critical patent/DE2349112A1/de
Pending legal-status Critical Current

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
    • 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
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • 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)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
DE19732349112 1972-09-30 1973-09-29 Verfahren zur herstellung von goethitpulver Pending DE2349112A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47098511A JPS5221720B2 (OSRAM) 1972-09-30 1972-09-30

Publications (1)

Publication Number Publication Date
DE2349112A1 true DE2349112A1 (de) 1974-04-04

Family

ID=14221659

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732349112 Pending DE2349112A1 (de) 1972-09-30 1973-09-29 Verfahren zur herstellung von goethitpulver

Country Status (4)

Country Link
JP (1) JPS5221720B2 (OSRAM)
CA (1) CA1064223A (OSRAM)
DE (1) DE2349112A1 (OSRAM)
GB (1) GB1437409A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114457A1 (de) * 1980-04-29 1982-06-03 Schweizerische Beratungsstelle für Unfallverhütung (BFU), 3000 Bern Apparat zum einstellen der ausloesekraefte an einer an einem ski befestigten sicherheits-skibindung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53127400A (en) * 1977-04-13 1978-11-07 Nippon Telegr & Teleph Corp <Ntt> Production of goethite
JPS54110999A (en) * 1978-02-20 1979-08-30 Nippon Telegr & Teleph Corp <Ntt> Preparation of magnetic particulates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114457A1 (de) * 1980-04-29 1982-06-03 Schweizerische Beratungsstelle für Unfallverhütung (BFU), 3000 Bern Apparat zum einstellen der ausloesekraefte an einer an einem ski befestigten sicherheits-skibindung

Also Published As

Publication number Publication date
JPS4957397A (OSRAM) 1974-06-04
CA1064223A (en) 1979-10-16
JPS5221720B2 (OSRAM) 1977-06-13
GB1437409A (en) 1976-05-26

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Legal Events

Date Code Title Description
OHA Expiration of time for request for examination