FR2519183B1 - Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobalt - Google Patents
Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobaltInfo
- Publication number
- FR2519183B1 FR2519183B1 FR8221414A FR8221414A FR2519183B1 FR 2519183 B1 FR2519183 B1 FR 2519183B1 FR 8221414 A FR8221414 A FR 8221414A FR 8221414 A FR8221414 A FR 8221414A FR 2519183 B1 FR2519183 B1 FR 2519183B1
- Authority
- FR
- France
- Prior art keywords
- preparation
- iron oxide
- oxide powder
- powder containing
- magnetic iron
- 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
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
- G11B5/70668—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 containing a dopant
- G11B5/70673—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 containing a dopant containing Co
-
- 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
- G11B5/70678—Ferrites
- G11B5/70684—Ferro-ferrioxydes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56211477A JPS58115030A (ja) | 1981-12-25 | 1981-12-25 | コバルト含有磁性酸化鉄粉末の製造方法 |
JP57148966A JPS5939729A (ja) | 1982-08-27 | 1982-08-27 | コバルト含有磁性酸化鉄粉末の製造方法 |
JP57148965A JPS5939728A (ja) | 1982-08-27 | 1982-08-27 | コバルト含有磁性酸化鉄粉末の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2519183A1 FR2519183A1 (fr) | 1983-07-01 |
FR2519183B1 true FR2519183B1 (fr) | 1986-01-03 |
Family
ID=27319656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8221414A Expired FR2519183B1 (fr) | 1981-12-25 | 1982-12-21 | Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobalt |
Country Status (8)
Country | Link |
---|---|
US (1) | US4486467A (fr) |
KR (1) | KR870001378B1 (fr) |
AU (1) | AU555302B2 (fr) |
CA (1) | CA1181234A (fr) |
DE (1) | DE3247835A1 (fr) |
FR (1) | FR2519183B1 (fr) |
GB (1) | GB2118532B (fr) |
NL (1) | NL187804C (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3516885A1 (de) * | 1985-05-10 | 1986-11-13 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung nadelfoermiger, kobalthaltiger ferrimagnetischer eisenoxide |
CN102528027B (zh) * | 2012-02-24 | 2013-06-26 | 哈尔滨工业大学 | 一种金壳磁性椭球的制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE150191C (fr) * | ||||
DE2243231C2 (de) * | 1972-09-01 | 1982-01-28 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Cobalt-dotiertem γ-Eisen(III)oxid |
US4064292A (en) * | 1972-09-01 | 1977-12-20 | Badische Anilin- & Soda-Fabrik, Aktiengesellschaft | Manufacture of cobalt-modified γ-iron(III)oxides |
DE2254810C2 (de) * | 1972-11-09 | 1985-12-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Verbesserung der magnetischen Eigenschaften von Gamma-Eisen (III)oxiden |
JPS5522003B2 (fr) * | 1975-01-28 | 1980-06-13 | ||
JPS52135896A (en) * | 1976-05-09 | 1977-11-14 | Toda Kogyo Corp | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
JPS52135895A (en) * | 1976-05-09 | 1977-11-14 | Toda Kogyo Corp | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
JPS52135897A (en) * | 1976-05-09 | 1977-11-14 | Toda Kogyo Corp | Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle |
DE2905352A1 (de) * | 1979-02-13 | 1980-08-21 | Basf Ag | Verfahren zur herstellung von nadelfoermigem kobalthaltigem magnetischem eisenoxid |
JPS6029646B2 (ja) * | 1981-01-20 | 1985-07-11 | 堺化学工業株式会社 | 磁性酸化鉄粉末の製造方法 |
AU548794B2 (en) * | 1981-07-28 | 1986-01-02 | Ishihara Sangyo Kaisha Ltd. | Process for producing cobalt containing ferromagnetic iron oxides |
-
1982
- 1982-12-13 AU AU91435/82A patent/AU555302B2/en not_active Ceased
- 1982-12-14 US US06/449,692 patent/US4486467A/en not_active Expired - Lifetime
- 1982-12-14 CA CA000417672A patent/CA1181234A/fr not_active Expired
- 1982-12-21 FR FR8221414A patent/FR2519183B1/fr not_active Expired
- 1982-12-23 KR KR8205766A patent/KR870001378B1/ko active
- 1982-12-23 GB GB08236662A patent/GB2118532B/en not_active Expired
- 1982-12-23 DE DE19823247835 patent/DE3247835A1/de active Granted
- 1982-12-24 NL NLAANVRAGE8204988,A patent/NL187804C/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1181234A (fr) | 1985-01-22 |
NL187804B (nl) | 1991-08-16 |
AU9143582A (en) | 1983-06-30 |
KR840002741A (ko) | 1984-07-16 |
DE3247835A1 (de) | 1983-07-14 |
FR2519183A1 (fr) | 1983-07-01 |
GB2118532B (en) | 1985-06-05 |
DE3247835C2 (fr) | 1989-03-09 |
KR870001378B1 (ko) | 1987-07-24 |
US4486467A (en) | 1984-12-04 |
NL8204988A (nl) | 1983-07-18 |
NL187804C (nl) | 1992-01-16 |
AU555302B2 (en) | 1986-09-18 |
GB2118532A (en) | 1983-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2574688B1 (fr) | Procede pour ameliorer les proprietes de manipulation d'une composition de poudre de tantale en flocons | |
DE3361977D1 (en) | Process for the production of magnetic polymer particles | |
BE890028A (fr) | Poudre a base de sel d'addition d'acide de bacampicilline-micro-encapsule et composition pharmaceutique la contenant | |
FR2533206B1 (fr) | Procede de preparation d'une poudre magnetique a base d'oxyde de fer magnetique et produit obtenu | |
FR2510804B1 (fr) | Procede de preparation d'un oxyde de fer ferromagnetique contenant du cobalt | |
FR2537771B1 (fr) | Procede de preparation de poudre d'oxyde de fer magnetique contenant du cobalt | |
FR2500483B1 (fr) | Poudre d'acier faiblement allie atomisee a l'huile et son procede de production | |
DZ918A1 (fr) | Procédé pour la réduction directe d'une matière enparticules contenant de l'oxyde de fer. | |
FR2527928B1 (fr) | Procede de preparation d'anticorps monoclonaux conjugues avec un chelate metallique et solution les contenant | |
FR2493346B1 (fr) | Procede de preparation d'un alliage magnetique amorphe | |
FR2306265A1 (fr) | Procede et dispositif pour la reduction d'une matiere a grains fins fondue, contenant de l'oxyde de fer | |
FR2519183B1 (fr) | Procede de preparation d'une poudre d'oxyde de fer magnetique contenant du cobalt | |
BE885490A (fr) | Procede de fabrication d'acier a partir de matieres metaliques solides contenant du fer. | |
FR2492801B1 (fr) | Procede de preparation de poudre d'hydroxyoxyde ferrique gamma | |
FR2562081B1 (fr) | Procede de preparation d'oxydes de fer pigmentaires rouges a partir de sulfate ferreux residuaire | |
GB2072639B (en) | Process for preparing iron or iron compound particles for use in magnetic recording | |
FR2515412B1 (fr) | Procede de production de poudre d'oxyde de fer magnetique contenant du cobalt | |
DE3374480D1 (en) | Process for producing acicular ferromagnetic metal particles essentially consisting of iron | |
JPS5641835A (en) | Manufacture of needleelike highly magnetic iron particle | |
FR2303083A1 (fr) | Procede de reduction en lit fluidise d'une matiere contenant de l'oxyde de fer | |
FR2495017B1 (fr) | Procede pour la preparation de catalyseurs a base d'oxyde de fer et d'oxyde de molybdene | |
FR2517292B1 (fr) | Procede de preparation de a-feooh aciculaire pour une matiere d'enregistrement magnetique | |
DE3160523D1 (en) | Process for preparing acicular ferromagnetic particles mainly consisting of iron | |
FR2530370B1 (fr) | Procede de production d'oxydes de fer ferromagnetiques contenant du cobalt et du fer ferreux, pouvant etre utilises pour la fabrication de bandes magnetiques | |
FR2564085B1 (fr) | Procede pour la fabrication de poudre d'oxyde d'uranium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |