DE69123732D1 - Verfahren zur Herstellung von nadelförmigen Goethit-Teilchen und nadelförmigen magnetischen Eisenoxid-Teilchen - Google Patents

Verfahren zur Herstellung von nadelförmigen Goethit-Teilchen und nadelförmigen magnetischen Eisenoxid-Teilchen

Info

Publication number
DE69123732D1
DE69123732D1 DE69123732T DE69123732T DE69123732D1 DE 69123732 D1 DE69123732 D1 DE 69123732D1 DE 69123732 T DE69123732 T DE 69123732T DE 69123732 T DE69123732 T DE 69123732T DE 69123732 D1 DE69123732 D1 DE 69123732D1
Authority
DE
Germany
Prior art keywords
acicular
particles
iron oxide
magnetic iron
producing
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.)
Expired - Fee Related
Application number
DE69123732T
Other languages
English (en)
Other versions
DE69123732T2 (de
Inventor
Katsumi Yamashita
Tosiharu Harada
Haruki Kurokawa
Kazuhisa Inaba
Hideaki Sadamura
Tomohisa Moriya
Junichi Kawano
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.)
Toda Kogyo Corp
Original Assignee
Toda Kogyo 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 Toda Kogyo Corp filed Critical Toda Kogyo Corp
Publication of DE69123732D1 publication Critical patent/DE69123732D1/de
Application granted granted Critical
Publication of DE69123732T2 publication Critical patent/DE69123732T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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]
    • 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
    • C01G49/08—Ferroso-ferric oxide [Fe3O4]
    • 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
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Composite Materials (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
DE69123732T 1991-05-31 1991-07-25 Verfahren zur Herstellung von nadelförmigen Goethit-Teilchen und nadelförmigen magnetischen Eisenoxid-Teilchen Expired - Fee Related DE69123732T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3157831A JP2937211B2 (ja) 1991-05-31 1991-05-31 針状磁性酸化鉄粒子粉末の製造法

Publications (2)

Publication Number Publication Date
DE69123732D1 true DE69123732D1 (de) 1997-01-30
DE69123732T2 DE69123732T2 (de) 1997-07-03

Family

ID=15658286

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123732T Expired - Fee Related DE69123732T2 (de) 1991-05-31 1991-07-25 Verfahren zur Herstellung von nadelförmigen Goethit-Teilchen und nadelförmigen magnetischen Eisenoxid-Teilchen

Country Status (4)

Country Link
US (1) US5399278A (de)
EP (1) EP0515749B1 (de)
JP (1) JP2937211B2 (de)
DE (1) DE69123732T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434973A1 (de) * 1994-09-30 1996-04-04 Bayer Ag Höchsttransparente gelbe Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung
US5641470A (en) * 1995-07-17 1997-06-24 Minnesota Mining And Manufacturing Company Process for making goethite
JP3087825B2 (ja) * 1996-04-26 2000-09-11 戸田工業株式会社 紡錘状ゲータイト粒子粉末及びその製造法並びに該ゲータイト粒子粉末を出発原料として得られる鉄を主成分とする紡錘状金属磁性粒子粉末及びその製造法
JP3866074B2 (ja) * 2001-10-12 2007-01-10 富士フイルムホールディングス株式会社 強磁性金属粉末及びその製造方法並びに磁気記録媒体
US9023237B2 (en) * 2013-06-19 2015-05-05 New Technology Ventures, Inc. Highly active nano iron catalyst for the absorption of hydrogen sulfide
US9458027B2 (en) * 2013-06-19 2016-10-04 New Technology Ventures, Inc. Sulfided iron (II) compound and method of manufacture

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310279B2 (de) * 1974-03-01 1978-04-12
US4108787A (en) * 1974-12-20 1978-08-22 Fuji Photo Film Co., Ltd. Process for producing ferromagnetic iron oxide
JPS5319998A (en) * 1976-08-09 1978-02-23 Toda Kogyo Corp Process for preparing cobalttdoped acicular magnetite particle having magnetic stability
US4136158A (en) * 1976-11-01 1979-01-23 Toda Kogyo Corp. Production of acicular magnetic iron oxides
DE2705967C2 (de) * 1977-02-12 1990-01-04 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadelförmigem kobalthaltigem magnetischem Eisenoxid
JPS589052B2 (ja) * 1979-06-12 1983-02-18 製鉄化学工業株式会社 黄色酸化鉄の製造法
JPS5650122A (en) * 1979-10-02 1981-05-07 Tdk Corp Manufacture of iron oxide hydrate
US4495164A (en) * 1980-05-30 1985-01-22 Toda Kogyo Corp. Process for producing acicular magnetite or acicular maghemite
DE3026686A1 (de) * 1980-07-15 1982-02-11 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zur herstellung von synthetischem eisenoxidgelb
JPS5825202A (ja) * 1981-07-21 1983-02-15 Ishihara Sangyo Kaisha Ltd 磁気記録材料用針状α−ＦｅＯＯＨの製造方法
JPS60195023A (ja) * 1984-03-14 1985-10-03 Kawasaki Steel Corp 針状ゲ−サイトの製造方法
DE3573039D1 (en) * 1984-04-28 1989-10-19 Toda Kogyo Corp Magnetic iron oxide particles
JPS61168536A (ja) * 1985-01-21 1986-07-30 Agency Of Ind Science & Technol 針状オキシ水酸化鉄の製法
JPS61186225A (ja) * 1985-02-15 1986-08-19 Sumitomo Alum Smelt Co Ltd 針状ゲ−タイトの製造方法
JPH0742119B2 (ja) * 1986-03-22 1995-05-10 戸田工業株式会社 針状晶ゲ−タイト粒子粉末の製造法
DE3631193A1 (de) * 1986-09-13 1988-03-24 Bayer Ag Magnetische eisenoxidpigmente und verfahren zu ihrer herstellung
DE3732526A1 (de) * 1987-09-26 1989-04-06 Basf Ag Verfahren zur herstellung von nadelfoermigem (alpha)-eisen(iii)oxidhydroxid
JPH0259431A (ja) * 1988-08-24 1990-02-28 Dowa Mining Co Ltd オキシ水酸化鉄の製造方法

Also Published As

Publication number Publication date
JPH04357119A (ja) 1992-12-10
JP2937211B2 (ja) 1999-08-23
DE69123732T2 (de) 1997-07-03
EP0515749B1 (de) 1996-12-18
EP0515749A2 (de) 1992-12-02
US5399278A (en) 1995-03-21
EP0515749A3 (en) 1993-11-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee