GB656614A - Method of treating iron ores - Google Patents
Method of treating iron oresInfo
- Publication number
- GB656614A GB656614A GB18322/48A GB1832248A GB656614A GB 656614 A GB656614 A GB 656614A GB 18322/48 A GB18322/48 A GB 18322/48A GB 1832248 A GB1832248 A GB 1832248A GB 656614 A GB656614 A GB 656614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- pool
- oxide
- vessel
- gas
- 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
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- 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
- C22B1/10—Roasting processes in fluidised form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Dispersion 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)
- Manufacture Of Iron (AREA)
Abstract
656,614. Reduction of ores. STANDARD OIL DEVELOPMENT CO. July 7, 1948, No. 18322. Convention date, March 11, 1948. [Classes 72 and 82 (i)] Oxidic iron ore in a subdivided state is charged into a primary high temperature reducing zone wherein the oxide is partially reduced to a lower oxide by a gaseous medium and melted, the melted oxide being separated and reduced to the metallic state by a gaseous medium at a temperature above the melting point of iron, the molten iron being collected in a pool into which is introduced a fuel gas and oxygen which react to produce the reducing gas and liberate heat to keep the pool molten, and finally the molten iron is withdrawn. As shown, finely divided iron oxide ore is withdrawn from a hopper 2 into a preheated air line 6 from which it is discharged into a vessel 1 where a strongly reducing gas obtained from the lower part of the vessel 1 is burned to produce a weakly reducing gas which reduces the iron ore to a lower oxide existing as a liquid at the prevailing temperature. The droplets of lower oxide coalesce and form a pool 10 into which are blown air, through pipe 11, and fuel gas, comprising a preheated, normally liquid or gaseous hydrocarbon, e.g. methane, through pipe 12. The resulting gas is strongly reducing and completes the reduction of the oxide to iron, which is withdrawn, and the excess reducing gas is burned in the upper part of the vessel 1. The effluent gases may pass through a tortuous passage either above or down the sides of the vessel 1 to remove any droplets entrained therein, which droplets are returned to the pool 10. The pipes 11 and 12 may enter the pool above the bottom, thus leaving a quiescent pool in which the liquid iron may collect. The air and iron ore and, if required for temperature control, a small quantity of fuel gas may enter through a pipe set tangentially to the vessel in order to produce a swirling movement. The Specification as open to inspection under Sect. 91 includes also the application of the invention to non-ferrous ores. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US656614XA | 1948-03-11 | 1948-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB656614A true GB656614A (en) | 1951-08-29 |
Family
ID=22064258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18322/48A Expired GB656614A (en) | 1948-03-11 | 1948-07-07 | Method of treating iron ores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB656614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0605535A1 (en) * | 1991-09-20 | 1994-07-13 | Ausmelt Pty Ltd | Process for production of iron. |
-
1948
- 1948-07-07 GB GB18322/48A patent/GB656614A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0605535A1 (en) * | 1991-09-20 | 1994-07-13 | Ausmelt Pty Ltd | Process for production of iron. |
| EP0605535A4 (en) * | 1991-09-20 | 1995-06-14 | Ausmelt Pty Ltd | Process for production of iron. |
| US5498277A (en) * | 1991-09-20 | 1996-03-12 | Ausmelt Limited | Process for production of iron |
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