GB1122637A - Process for the stabilisation of iron oxides containing water of constitution - Google Patents
Process for the stabilisation of iron oxides containing water of constitutionInfo
- Publication number
- GB1122637A GB1122637A GB4439865A GB4439865A GB1122637A GB 1122637 A GB1122637 A GB 1122637A GB 4439865 A GB4439865 A GB 4439865A GB 4439865 A GB4439865 A GB 4439865A GB 1122637 A GB1122637 A GB 1122637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fe2o3
- stabilisation
- constitution
- containing water
- iron oxides
- 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
- 230000006641 stabilisation Effects 0.000 title abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 1
- 235000013980 iron oxide Nutrition 0.000 title 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 3
- 229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 238000011105 stabilization Methods 0.000 abstract 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 1
- 229910052915 alkaline earth metal silicate Chemical class 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- 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
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 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
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The stabilization of a -FeO(OH) against change of crystalline form is achieved by treating it with an aqueous solution of salts of aluminium (preferably at pH 8 to 11.4), titanium (preferably at pH 1.1 to 3.8) or zirconium (preferably at pH 1.1 to 3.5) or an alkali metal silicate (preferably sodium silicate at pH 8.5 to 11.2) or an alkaline earth metal silicate, at a pH within the region of incipient hydrolytic polymerization. Preferably, the salt concentration is 1 to 5% by weight. This stabilization enables the conversion of normal a -Fe2O3 to g -Fe2O3, which necessarily must be via a -FeO(OH) for the g -Fe2O3 to have the required electro-acoustical properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4439865A GB1122637A (en) | 1965-10-20 | 1965-10-20 | Process for the stabilisation of iron oxides containing water of constitution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4439865A GB1122637A (en) | 1965-10-20 | 1965-10-20 | Process for the stabilisation of iron oxides containing water of constitution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1122637A true GB1122637A (en) | 1968-08-07 |
Family
ID=10433115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4439865A Expired GB1122637A (en) | 1965-10-20 | 1965-10-20 | Process for the stabilisation of iron oxides containing water of constitution |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1122637A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2130921A1 (en) * | 1970-06-23 | 1971-12-30 | Sony Corp | Process for the production of magnetic powder |
| JPS5230758A (en) * | 1975-09-05 | 1977-03-08 | Hitachi Ltd | Method to manufacture ferromagnetic matal poeder |
| JPS52134858A (en) * | 1976-05-07 | 1977-11-11 | Kanto Denka Kogyo Kk | Method of making magnetic recording magnetic powder containing iron as main constituent |
| FR2353619A1 (en) * | 1976-06-04 | 1977-12-30 | Bayer Ag | PRODUCTION OF IRON OXIDE PIGMENTS WITH IMPROVED RESISTANCE TO OXIDATION |
-
1965
- 1965-10-20 GB GB4439865A patent/GB1122637A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2130921A1 (en) * | 1970-06-23 | 1971-12-30 | Sony Corp | Process for the production of magnetic powder |
| JPS5230758A (en) * | 1975-09-05 | 1977-03-08 | Hitachi Ltd | Method to manufacture ferromagnetic matal poeder |
| JPS6017802B2 (en) * | 1975-09-05 | 1985-05-07 | 株式会社日立製作所 | Method for producing ferromagnetic metal powder |
| JPS52134858A (en) * | 1976-05-07 | 1977-11-11 | Kanto Denka Kogyo Kk | Method of making magnetic recording magnetic powder containing iron as main constituent |
| JPS5729523B2 (en) * | 1976-05-07 | 1982-06-23 | ||
| FR2353619A1 (en) * | 1976-06-04 | 1977-12-30 | Bayer Ag | PRODUCTION OF IRON OXIDE PIGMENTS WITH IMPROVED RESISTANCE TO OXIDATION |
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