GB487439A - Improvements in and relating to the production of pig iron - Google Patents
Improvements in and relating to the production of pig ironInfo
- Publication number
- GB487439A GB487439A GB579637A GB579637A GB487439A GB 487439 A GB487439 A GB 487439A GB 579637 A GB579637 A GB 579637A GB 579637 A GB579637 A GB 579637A GB 487439 A GB487439 A GB 487439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sintering
- iron
- production
- limestone
- ore
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Calcium ferrite, for use in the production of pig iron, is produced by sintering iron ore with at least an equal amount of limestone. The limestone is crushed so that the size of its particles does not exceed 3 mm. and the ore to a size of not more than 1,5 mm. The sintering temperature is brought up to 1400 DEG C. and after sintering the product is rapidly cooled. The production of the meta- and oxymetaferrite is referred to.ALSO:In the production of pig iron from iron ores admixed with coke and lime-containing ingredients, the usual limestone or lime is wholly or partly replaced by a calcium ferrite which is produced by sintering iron ore with at least an equal amount of limestone. The limestone is crushed so that the size of the particles do not exceed 3 mm. and the ore to a size of not more than 1,5 mm. In sintering, the temperature is brought up to 1400 DEG C. to produce dissociation of the iron oxide and after sintering the product is cooled rapidly so as to prevent the ferrous oxide produced from forming new compounds. The ore used should contain as little sulphur and phosphorus as possible so that the pig iron is adapted for conversion into cast iron or steel. The production of the metal and oxymeta-ferrites is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB579637A GB487439A (en) | 1937-02-26 | 1937-02-26 | Improvements in and relating to the production of pig iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB579637A GB487439A (en) | 1937-02-26 | 1937-02-26 | Improvements in and relating to the production of pig iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB487439A true GB487439A (en) | 1938-06-21 |
Family
ID=9802780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB579637A Expired GB487439A (en) | 1937-02-26 | 1937-02-26 | Improvements in and relating to the production of pig iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB487439A (en) |
-
1937
- 1937-02-26 GB GB579637A patent/GB487439A/en not_active Expired
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