GB754182A - Improvements in or relating to the reduction of oxidic iron ore to metallic iron - Google Patents
Improvements in or relating to the reduction of oxidic iron ore to metallic ironInfo
- Publication number
- GB754182A GB754182A GB2590754A GB2590754A GB754182A GB 754182 A GB754182 A GB 754182A GB 2590754 A GB2590754 A GB 2590754A GB 2590754 A GB2590754 A GB 2590754A GB 754182 A GB754182 A GB 754182A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- ore
- gas
- reduction
- per cent
- 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
- C22B1/10—Roasting processes in fluidised form
-
- 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
-
- 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
- Y02P10/20—Recycling
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 And Refinement Of Metals (AREA)
Abstract
754,182. Reduction of iron ores. TEXACO DEVELOPMENT CORPORATION. Sept. 7, 1954 [Sept. 14, 1953], No. 25907/54. Class 72. Finely divided iron oxide ores are reduced in a fluidised bed by passing hydrogen therethrough under the following conditions:- (a) hydrogen of at least 90 per cent purity is used ; (b) the temperature in the reduction zone is between 700‹ and 1050‹F.: (c) the hydrogen pressure is between 250 and 600 psig.: (d) the ratio of recycled gas to fresh gas is at least 5 : 1, water being removed from the exhaust gas by cooling before recycling. As shown, hydrogen is supplied to a heat exchanger 4 to raise its temperature to 300‹-550‹F. above that required in the reducing chamber 6 and iron oxide of particle size 10-3000 microns is added from the hopper 1 to the hydrogen stream. The reduced ore is removed from the reducing chamber 6 through a pipe 16 in a quiescent area 12 and melted, with the addition of lime in a furnace 20, e.g. an electric furnace. The speed of the hydrogen through the bed of ore may vary between 0À5 and 5À0 feet per second. The exhaust gas passes through a cyclone 10 to remove any entrained particles of ore and then cooled and scrubbed to reduce the water content to below 1 per cent. The gas for recycling is heated in a heat exchanger 29, brought to the required pressure by a compressor 37, heated to the required temperature in a heater 38, and added to the stream of fresh hydrogen entering the reducing chamber. A small quantity of recycle gas may be passed into the quiescent zone 12 to prevent agglomeration of the particles. The ore preferably has a silica content below 15 per cent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US754182XA | 1953-09-14 | 1953-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB754182A true GB754182A (en) | 1956-08-01 |
Family
ID=22125604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2590754A Expired GB754182A (en) | 1953-09-14 | 1954-09-07 | Improvements in or relating to the reduction of oxidic iron ore to metallic iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB754182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947620A (en) * | 1957-08-06 | 1960-08-02 | Republic Steel Corp | Process of preparing iron powder capable of being rolled directly to sheet form |
| DE1270581B (en) * | 1957-08-12 | 1968-06-20 | Hydrocarbon Research Inc | Process for reducing iron oxide |
-
1954
- 1954-09-07 GB GB2590754A patent/GB754182A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947620A (en) * | 1957-08-06 | 1960-08-02 | Republic Steel Corp | Process of preparing iron powder capable of being rolled directly to sheet form |
| DE1270581B (en) * | 1957-08-12 | 1968-06-20 | Hydrocarbon Research Inc | Process for reducing iron oxide |
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