BE848025A - Procede de preparation d'oxyde hydrate aciculaire de fer alpha -(iii) - Google Patents
Procede de preparation d'oxyde hydrate aciculaire de fer alpha -(iii)Info
- Publication number
- BE848025A BE848025A BE172103A BE172103A BE848025A BE 848025 A BE848025 A BE 848025A BE 172103 A BE172103 A BE 172103A BE 172103 A BE172103 A BE 172103A BE 848025 A BE848025 A BE 848025A
- Authority
- BE
- Belgium
- Prior art keywords
- iii
- iron oxide
- hydrated iron
- oxide alpha
- preparing acicular
- Prior art date
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 2
- 238000004519 manufacturing process Methods 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
- 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
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
-
- 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
- C01P2004/51—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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
-
- 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
- C01P2006/12—Surface area
-
- 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)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dermatology (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2550308A DE2550308C3 (de) | 1975-11-08 | 1975-11-08 | Verfahren zur Herstellung von nadeiförmigem a-Eisen(III)-Oxidhydrat |
Publications (1)
Publication Number | Publication Date |
---|---|
BE848025A true BE848025A (fr) | 1977-05-05 |
Family
ID=5961309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE172103A BE848025A (fr) | 1975-11-08 | 1976-11-05 | Procede de preparation d'oxyde hydrate aciculaire de fer alpha -(iii) |
Country Status (5)
Country | Link |
---|---|
US (1) | US4061726A (fr) |
JP (1) | JPS6031768B2 (fr) |
BE (1) | BE848025A (fr) |
DE (1) | DE2550308C3 (fr) |
FR (1) | FR2336350A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2935358A1 (de) * | 1979-09-01 | 1981-03-26 | Basf Ag, 67063 Ludwigshafen | Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung |
US5139767A (en) * | 1981-06-22 | 1992-08-18 | Mitsui Toatsu Chemicals, Incorporated | Production method of goethite |
JPS57209834A (en) * | 1981-06-22 | 1982-12-23 | Mitsui Toatsu Chem Inc | Preparation of goethite |
JPS62167222A (ja) * | 1986-01-17 | 1987-07-23 | Showa Denko Kk | レピツドクロサイトの製造方法 |
US5069216A (en) * | 1986-07-03 | 1991-12-03 | Advanced Magnetics Inc. | Silanized biodegradable super paramagnetic metal oxides as contrast agents for imaging the gastrointestinal tract |
US5219554A (en) * | 1986-07-03 | 1993-06-15 | Advanced Magnetics, Inc. | Hydrated biodegradable superparamagnetic metal oxides |
US5641470A (en) * | 1995-07-17 | 1997-06-24 | Minnesota Mining And Manufacturing Company | Process for making goethite |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE792847A (fr) * | 1971-12-17 | 1973-06-15 | Bayer Ag | Procede de preparation d'oxydes de fer magnetiques aciculaires |
BE794292A (fr) * | 1972-01-21 | 1973-07-19 | Bayer Ag | Procede de preparation d'oxydes de fer magnetiques aciculaires finement divises |
US3845198A (en) * | 1972-05-03 | 1974-10-29 | Bell & Howell Co | Acicular gamma iron oxide process |
-
1975
- 1975-11-08 DE DE2550308A patent/DE2550308C3/de not_active Expired
-
1976
- 1976-10-15 US US05/732,901 patent/US4061726A/en not_active Expired - Lifetime
- 1976-11-05 JP JP51132523A patent/JPS6031768B2/ja not_active Expired
- 1976-11-05 BE BE172103A patent/BE848025A/fr not_active IP Right Cessation
- 1976-11-08 FR FR7633612A patent/FR2336350A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2336350A1 (fr) | 1977-07-22 |
FR2336350B1 (fr) | 1981-06-19 |
DE2550308C3 (de) | 1978-07-13 |
DE2550308B2 (de) | 1977-11-17 |
DE2550308A1 (de) | 1977-05-18 |
US4061726A (en) | 1977-12-06 |
JPS5259097A (en) | 1977-05-16 |
JPS6031768B2 (ja) | 1985-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: BASF A.G. Effective date: 19931130 |