GB1090043A - Improvements in or relating to the preparation of iron oxide - Google Patents
Improvements in or relating to the preparation of iron oxideInfo
- Publication number
- GB1090043A GB1090043A GB1257165A GB1257165A GB1090043A GB 1090043 A GB1090043 A GB 1090043A GB 1257165 A GB1257165 A GB 1257165A GB 1257165 A GB1257165 A GB 1257165A GB 1090043 A GB1090043 A GB 1090043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- weight
- mill
- hydrate
- sulphuric acid
- 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
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 238000001354 calcination Methods 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000003801 milling Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 150000004688 heptahydrates Chemical class 0.000 abstract 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 229910000859 α-Fe 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
- C01P2004/60—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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
-
- 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
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
Ferric oxide, for range and ferrite applications, is prepared by calcining a mixture of ferrous oxide scale derived from steel milling operations and a reagent containing the SO4 radical at 1000-2000 DEG F. for at least 1/4 hour and then milling the product, the reagent being either (a) ferrous sulphate heptahydrate as crystals or as a melt formed from the crystals in a weight ratio of 1 part hydrate to 0.5-2 parts of scale, or (b) concentrated sulphuric acid (at least 90%) and water in admixture, the water being present in an amount equal to at least 10% (preferably 20%) by weight of the iron oxide scale and the sulphuric acid being present in an amount equal to from 5-100% (preferably 50%) by weight of the iron oxide scale. In an alternative procedure the hydrate reagent may be pretreated with at least 10% by weight of concentrated sulphuric acid. In a preferred embodiment using the hydrate at least 99% by weight of the scale is finer than 325 mesh, the weight-ratio of scale to heptahydrate is 1:1 and the calcination temperature 1350-1500 DEG F. The product is preferably milled so that less than 0.1% by weight of the product is held on a 325 mesh screen. Mill scales listed as being suitable for the process are Blooming Mill Scale, Rolling Mill Scale, Scarfing Scale, Finishing Mill Scale and Straight Mill Scale.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42076964A | 1964-12-23 | 1964-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1090043A true GB1090043A (en) | 1967-11-08 |
Family
ID=23667770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1257165A Expired GB1090043A (en) | 1964-12-23 | 1965-03-24 | Improvements in or relating to the preparation of iron oxide |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1090043A (en) |
| NL (1) | NL6504062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115895294A (en) * | 2022-11-22 | 2023-04-04 | 云浮鸿志新材料有限公司 | Composite nano transparent iron oxide yellow and preparation method thereof |
-
1965
- 1965-03-24 GB GB1257165A patent/GB1090043A/en not_active Expired
- 1965-03-31 NL NL6504062A patent/NL6504062A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115895294A (en) * | 2022-11-22 | 2023-04-04 | 云浮鸿志新材料有限公司 | Composite nano transparent iron oxide yellow and preparation method thereof |
| CN115895294B (en) * | 2022-11-22 | 2023-10-03 | 云浮鸿志新材料有限公司 | Composite nano transparent iron oxide yellow and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6504062A (en) | 1966-06-24 |
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