GB603366A - A process of extracting iron from iron silicates or iron ores containing silica - Google Patents
A process of extracting iron from iron silicates or iron ores containing silicaInfo
- Publication number
- GB603366A GB603366A GB27430/45A GB2743045A GB603366A GB 603366 A GB603366 A GB 603366A GB 27430/45 A GB27430/45 A GB 27430/45A GB 2743045 A GB2743045 A GB 2743045A GB 603366 A GB603366 A GB 603366A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- starting material
- sinter
- extracting
- base
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Silicon Compounds (AREA)
Abstract
In a process for extracting iron from iron silicate or iron ores containing silica, in which iron oxide is reduced to iron, the starting material is first subjected to treatment consisting in heating a finely divided mixture of the starting material with a base-forming material such as a compound of calcium or magnesium, the said treatment taking place in an oxidising atmosphere at temperatures above 750 DEG C. and below the temperature at which the pores of the sinter thus produced become substantially closed by melting, for example, about 1300 DEG C. Thus, the silica of the starting material combines with the base-forming compound yielding a silicate and a sinter is formed in which the iron is present as maghemite and magnetite.ALSO:A process of extracting iron from iron silicates, or iron ores containing silica, in which the iron oxide is reduced to iron after the starting material has first been subjected to a treatment consisting in heating a finely divided mixture of the starting material with a base forming material such as a compound of lime or magnesium, the said treatment, which is effected before the step of magnetic separation where such is employed, taking place in an oxidising atmosphere at temperatures above 750 DEG C. and below the temperature at which the pores of the sinter thus produced become substantially closed by melting, with the result that the silica of the starting material combines with the base forming compound yielding a silicate, and forming a sinter in which the iron is present as oxide. Preheating is preferably carried out at a temperature of about 1300 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO916731X | 1943-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603366A true GB603366A (en) | 1948-06-15 |
Family
ID=19907673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27430/45A Expired GB603366A (en) | 1943-06-17 | 1945-10-18 | A process of extracting iron from iron silicates or iron ores containing silica |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES172302A1 (en) |
| FR (1) | FR916731A (en) |
| GB (1) | GB603366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780536A (en) * | 1953-10-21 | 1957-02-05 | United States Steel Corp | Flue-dust sinter and method of manufacture |
-
1945
- 1945-10-18 GB GB27430/45A patent/GB603366A/en not_active Expired
- 1945-10-31 FR FR916731D patent/FR916731A/en not_active Expired
-
1946
- 1946-01-24 ES ES172302A patent/ES172302A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780536A (en) * | 1953-10-21 | 1957-02-05 | United States Steel Corp | Flue-dust sinter and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| FR916731A (en) | 1946-12-13 |
| ES172302A1 (en) | 1946-03-01 |
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