GB810638A - Process for reducing finely divided iron ore - Google Patents
Process for reducing finely divided iron oreInfo
- Publication number
- GB810638A GB810638A GB9688/57A GB968857A GB810638A GB 810638 A GB810638 A GB 810638A GB 9688/57 A GB9688/57 A GB 9688/57A GB 968857 A GB968857 A GB 968857A GB 810638 A GB810638 A GB 810638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- ore
- furnace
- carbon monoxide
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- 239000007789 gas Substances 0.000 abstract 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 3
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000035484 reaction time Effects 0.000 abstract 1
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
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- 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
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)
- Manufacture Of Iron (AREA)
Abstract
Iron ore is reduced by feeding finely divided iron ore, having its iron content as Fe2O3, through a cylindrical rotary furnace with its axis inclined at not more than 30 degrees to the horizontal so as to impart a tumbling motion to the ore, and passing a reducing gas consisting substantially of carbon monoxide through the furnace at a velocity insufficient to keep the ore suspended, the temperature in the furnace being maintained between 550 DEG C and 650 DEG C. The gas is preferably pure carbon monoxide or a mixture of carbon monoxide and not more than 30 per cent of hydrogen, carbon dioxide may be present in such quantity that the exhaust gas does not contain more than 35 per cent and nitrogen may be present to not more than 5 per cent. The ore size may be such that 50 per cent at least passes a 1 mm. screen. The gas may flow countercurrent to or parallel with the ore and advantage may be taken of the fact that, in parallel flow, the smaller particles are carried through the furnace faster than the larger, thus accommodating reaction time to grain size. The final metal may contain more than 2 per cent carbon and the reduction may be 75 per cent complete.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE810638X | 1956-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB810638A true GB810638A (en) | 1959-03-18 |
Family
ID=20344908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9688/57A Expired GB810638A (en) | 1956-03-29 | 1957-03-25 | Process for reducing finely divided iron ore |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB810638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221654B (en) * | 1961-01-31 | 1966-07-28 | Rheinstahl Ind Planung G M B H | Process for the reduction of iron ores in rotary furnaces with gaseous or liquid reducing agents |
-
1957
- 1957-03-25 GB GB9688/57A patent/GB810638A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221654B (en) * | 1961-01-31 | 1966-07-28 | Rheinstahl Ind Planung G M B H | Process for the reduction of iron ores in rotary furnaces with gaseous or liquid reducing agents |
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