JPS5669231A - Preparation of needlelike goethite - Google Patents
Preparation of needlelike goethiteInfo
- Publication number
- JPS5669231A JPS5669231A JP14607079A JP14607079A JPS5669231A JP S5669231 A JPS5669231 A JP S5669231A JP 14607079 A JP14607079 A JP 14607079A JP 14607079 A JP14607079 A JP 14607079A JP S5669231 A JPS5669231 A JP S5669231A
- Authority
- JP
- Japan
- Prior art keywords
- goethite
- needlelike
- adjusted
- needlelike goethite
- filtered
- 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.)
- Pending
Links
- 229910052598 goethite Inorganic materials 0.000 title abstract 7
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 title abstract 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 3
- 150000001455 metallic ions Chemical class 0.000 abstract 2
- 239000012266 salt solution Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- -1 Ni2+ Chemical class 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 239000003945 anionic surfactant Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 abstract 1
- 230000005415 magnetization Effects 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 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]
-
- 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
- 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)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
PURPOSE: To provide needlelike goethite suitable for preparing finely divided magnetic powder having remarkably improved saturation magnetization, by adding a bivalent metallic ion to a ferrous salt solution, oxidizing the solution under basic conditions, treating the formed needlelike goethite with a surfactant, and drying the resultant goethite.
CONSTITUTION: A bivalent metallic ion, e.g. Ni2+, as a sulfate is added to a ferrous salt solution, e.g. ferrous sulfate, and adjusted to a pH≥11 with an alkali, e.g. NaOH. The alkaline solution is then mixed with an oxidizing agent, e.g. NaClO3, and oxidized at a temperature of preferably 80°C or below. The formed precipitate (needlelike goethite) is filtered, washed with water to give washing water of pH≤8, and adjusted to a pH of about 3 with a small amount of a mineral acid. The needlelike goethite of adjusted pH is mixed with preferably 1W10wt% an anionic surfactant, and the mixture is agitated, filtered and separated to give the aimed needlelike goethite.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607079A JPS5669231A (en) | 1979-11-13 | 1979-11-13 | Preparation of needlelike goethite |
| DE19803042439 DE3042439A1 (en) | 1979-11-13 | 1980-11-11 | Acicular goethite mfr. - by adding divalent metal ions to ferrous salt soln., oxidising and treating product with surfactant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607079A JPS5669231A (en) | 1979-11-13 | 1979-11-13 | Preparation of needlelike goethite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5669231A true JPS5669231A (en) | 1981-06-10 |
Family
ID=15399401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14607079A Pending JPS5669231A (en) | 1979-11-13 | 1979-11-13 | Preparation of needlelike goethite |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5669231A (en) |
| DE (1) | DE3042439A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601252A (en) * | 2013-10-28 | 2014-02-26 | 江苏大学 | Technology for solid phase preparation of nanometer iron oxide through template method |
| CN110844940A (en) * | 2019-11-11 | 2020-02-28 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of α -ferric oxide nano material doped with nickel atoms, product and application thereof |
-
1979
- 1979-11-13 JP JP14607079A patent/JPS5669231A/en active Pending
-
1980
- 1980-11-11 DE DE19803042439 patent/DE3042439A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601252A (en) * | 2013-10-28 | 2014-02-26 | 江苏大学 | Technology for solid phase preparation of nanometer iron oxide through template method |
| CN103601252B (en) * | 2013-10-28 | 2015-08-05 | 江苏大学 | A kind of method of template solid phase preparation of nanometer iron oxide |
| CN110844940A (en) * | 2019-11-11 | 2020-02-28 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of α -ferric oxide nano material doped with nickel atoms, product and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3042439A1 (en) | 1981-08-27 |
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