BE756608A - PROCESS FOR PREPARING IRON OXIDE, ACICULAR, OR GOETHITE, USABLE FOR THE PRODUCTION OF MAGNETIC GAMMA-FE203 IRON OXIDE - Google Patents

PROCESS FOR PREPARING IRON OXIDE, ACICULAR, OR GOETHITE, USABLE FOR THE PRODUCTION OF MAGNETIC GAMMA-FE203 IRON OXIDE

Info

Publication number
BE756608A
BE756608A BE756608DA BE756608A BE 756608 A BE756608 A BE 756608A BE 756608D A BE756608D A BE 756608DA BE 756608 A BE756608 A BE 756608A
Authority
BE
Belgium
Prior art keywords
iron oxide
goethite
acicular
usable
production
Prior art date
Application number
Other languages
French (fr)
Inventor
Pathes A Kodak
Original Assignee
Eastman Kodak Co
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.)
Publication date
Publication of BE756608A publication Critical patent/BE756608A/en

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
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • 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
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
BE756608D 1969-09-25 PROCESS FOR PREPARING IRON OXIDE, ACICULAR, OR GOETHITE, USABLE FOR THE PRODUCTION OF MAGNETIC GAMMA-FE203 IRON OXIDE BE756608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6932741A FR2060273A1 (en) 1969-09-25 1969-09-25 Acicular iron oxide prodn

Publications (1)

Publication Number Publication Date
BE756608A true BE756608A (en) 1971-03-24

Family

ID=9040606

Family Applications (1)

Application Number Title Priority Date Filing Date
BE756608D BE756608A (en) 1969-09-25 PROCESS FOR PREPARING IRON OXIDE, ACICULAR, OR GOETHITE, USABLE FOR THE PRODUCTION OF MAGNETIC GAMMA-FE203 IRON OXIDE

Country Status (4)

Country Link
JP (1) JPS5017198B1 (en)
BE (1) BE756608A (en)
DE (1) DE2047181C3 (en)
FR (1) FR2060273A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255492A (en) 1969-09-25 1981-03-10 Eastman Kodak Company Magnetic recording crystals, process for producing same, and magnetic recording webs using same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487326A1 (en) * 1980-07-24 1982-01-29 Kodak Pathe PROCESS FOR THE PREPARATION OF ACIDIC PARTICLES OF MAGNETIC IRON OXIDE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558304A (en) * 1948-03-11 1951-06-26 American Cyanamid Co Production of iron oxide pigments
FR1157156A (en) * 1956-08-03 1958-05-27 Kodak Pathe New process for dispersing a fluid in a highly divided state in a liquid mass and device for implementing this process
DE1242199B (en) * 1960-12-15 1967-06-15 Bayer Ag Process for the production of acicular gamma iron (III) oxide
FR1357866A (en) * 1963-03-29 1964-04-10 Basf Ag Process for the production of acicular alpha yellow iron oxide, particularly suitable as a starting material for the production of highly coercive iron-iii-gamma oxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255492A (en) 1969-09-25 1981-03-10 Eastman Kodak Company Magnetic recording crystals, process for producing same, and magnetic recording webs using same

Also Published As

Publication number Publication date
JPS5017198B1 (en) 1975-06-19
DE2047181A1 (en) 1971-04-08
DE2047181C3 (en) 1980-11-27
DE2047181B2 (en) 1980-03-27
FR2060273B1 (en) 1974-02-01
FR2060273A1 (en) 1971-06-18

Similar Documents

Publication Publication Date Title
BE792847A (en) PROCESS FOR PREPARING ACICULAR MAGNETIC IRON OXIDES
BE794292A (en) PROCESS FOR PREPARING FINE-DIVIDED ACICULAR MAGNETIC IRON OXIDES
BE792326A (en) PROCESS FOR THE PREPARATION OF HALOGENOHYDRINS
BE752298A (en) FE4N IRON NITRIDE, SUITABLE FOR MAGNETIC RECORDING AND ITS PREPARATION PROCESS
BE849414A (en) CONTINUOUS PROCESS FOR THE PREPARATION OF FEOOH IRON OXIDE HYDROXIDE
CH555316A (en) PROCESS FOR PREPARING AMINOCYCLOALCENYLO-CYCLOHEXENOLS.
ZA718712B (en) Basically substituted benzyl phthalazone derivatives,acid salts thereof and process for the production thereof
BE768404A (en) PROCESS FOR PREPARING PIGMENTS OF IRON OXIDE AND HYDRATED DEFER OXIDE
BE786518A (en) OXA-BICYCLO-ALCENES PREPARATION PROCESS
BE779572A (en) 4-AMINO-1,2,4-TRIAZINE-5- PRODUCTION PROCESS
BE756143A (en) PROCESS FOR PREPARING IRON OXIDE, ACICULAR OR GOETHITE USED FOR THE PRODUCTION OF MAGNETIC IRON OXIDE FE2O3
BE785344A (en) PROCESS FOR THE PREPARATION OF ALCENYL-SILANES
BE785335A (en) PROCESS FOR PREPARING MAGNESIUM OXIDE CORES
BE751839A (en) PROCESS FOR PREPARING TRISHYDROXYMETHYLPHOSPHINE OXIDE
BE766665A (en) PROCESS FOR PREPARING A PIGMENT BASED ON IRON OXIDE.
RO63031A (en) PROCESS FOR THE PREPARATION OF PYRIDO- (3,2-D) -PYRIMIDI
BE756608A (en) PROCESS FOR PREPARING IRON OXIDE, ACICULAR, OR GOETHITE, USABLE FOR THE PRODUCTION OF MAGNETIC GAMMA-FE203 IRON OXIDE
BE776066A (en) PROCESS FOR THE PREPARATION OF MANGANESE SALT OXIDE MN304
BE756350A (en) PROCESS FOR THE PREPARATION OF 5-METHYLENE-2, 4-OXAZOLIDINE-DIONES AND COMPOUNDS THUS OBTAINED
FR2327239A1 (en) PROCESS FOR THE PREPARATION OF ETHYLENE OXIDE
RO62421A (en) PROCESS FOR THE PREPARATION OF ETHYLENE OXIDE
OA03571A (en) Process for the controlled reduction of nickel-bearing iron oxide ores.
BE793258A (en) PROCESS FOR THE PREPARATION OF ADDITIONAL POLYMERS
BE799692A (en) PROCESS FOR PREPARING PHOSPHATE COATINGS ON IRON AND STEEL,
BE792804A (en) HYDROXOCOBALTICORRINOID PREPARATION PROCESS