GB704934A - Improvements in or relating to a process for the manufacture of a magnetic oxide from ashes of iron pyrites - Google Patents
Improvements in or relating to a process for the manufacture of a magnetic oxide from ashes of iron pyritesInfo
- Publication number
- GB704934A GB704934A GB13763/52A GB1376352A GB704934A GB 704934 A GB704934 A GB 704934A GB 13763/52 A GB13763/52 A GB 13763/52A GB 1376352 A GB1376352 A GB 1376352A GB 704934 A GB704934 A GB 704934A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ashes
- iron pyrites
- relating
- manufacture
- pyrites
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 title abstract 3
- 239000002956 ash Substances 0.000 title abstract 3
- 229910052742 iron Inorganic materials 0.000 title abstract 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 238000005367 electrostatic precipitation Methods 0.000 abstract 1
- -1 ferrous metals Chemical class 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- C01G49/08—Ferroso-ferric oxide [Fe3O4]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
A mixture of iron pyrites ashes and sodium chloride is roasted, firstly in an oxidizing atmosphere and then in a reducing atmosphere, at 650 DEG -900 DEG C. to produce magnetic iron oxide which is sufficiently pure, e.g. for siderurgical use. It is preferred to crush the ashes of iron pyrites and intimately mix them with the salt prior to roasting. The incandescent product may be quenched under water, in which case non-ferrous metals may be recovered from the solution so formed whilst the magnetic iron oxide is obtained by electromagnetic separation from the insoluble residue. Metal compounds may also be obtained from the gases coming from the roasting chamber, e.g. by electrostatic precipitation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR704934X | 1951-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB704934A true GB704934A (en) | 1954-03-03 |
Family
ID=9066895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13763/52A Expired GB704934A (en) | 1951-06-01 | 1952-05-30 | Improvements in or relating to a process for the manufacture of a magnetic oxide from ashes of iron pyrites |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB704934A (en) |
-
1952
- 1952-05-30 GB GB13763/52A patent/GB704934A/en not_active Expired
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