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-TeilchenInfo
- 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
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 2
- 239000002245 particle Substances 0.000 title 2
- 229910052598 goethite Inorganic materials 0.000 title 1
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 title 1
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)
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)
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)
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 |
-
1991
- 1991-05-31 JP JP3157831A patent/JP2937211B2/ja not_active Expired - Fee Related
- 1991-07-25 EP EP91306773A patent/EP0515749B1/de not_active Expired - Lifetime
- 1991-07-25 DE DE69123732T patent/DE69123732T2/de not_active Expired - Fee Related
-
1993
- 1993-02-25 US US08/022,844 patent/US5399278A/en not_active Expired - Fee Related
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 |