JPS6143406B2 - - Google Patents
Info
- Publication number
- JPS6143406B2 JPS6143406B2 JP58249040A JP24904083A JPS6143406B2 JP S6143406 B2 JPS6143406 B2 JP S6143406B2 JP 58249040 A JP58249040 A JP 58249040A JP 24904083 A JP24904083 A JP 24904083A JP S6143406 B2 JPS6143406 B2 JP S6143406B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- furnace
- reduction
- preliminary
- reduction furnace
- 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
- 230000009467 reduction Effects 0.000 claims description 96
- 239000007789 gas Substances 0.000 claims description 76
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 74
- 229910052742 iron Inorganic materials 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 238000003723 Smelting Methods 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 230000001603 reducing effect Effects 0.000 claims description 15
- 239000003575 carbonaceous material Substances 0.000 claims description 13
- 238000006114 decarboxylation reaction Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000002309 gasification Methods 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 239000000571 coke Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 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
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/143—Injection of partially reduced ore into a molten bath
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58249040A JPS60145307A (ja) | 1983-12-30 | 1983-12-30 | 鉄鉱石の溶融還元方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58249040A JPS60145307A (ja) | 1983-12-30 | 1983-12-30 | 鉄鉱石の溶融還元方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60145307A JPS60145307A (ja) | 1985-07-31 |
| JPS6143406B2 true JPS6143406B2 (de) | 1986-09-27 |
Family
ID=17187105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58249040A Granted JPS60145307A (ja) | 1983-12-30 | 1983-12-30 | 鉄鉱石の溶融還元方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145307A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685964A (en) * | 1985-10-03 | 1987-08-11 | Midrex International B.V. Rotterdam | Method and apparatus for producing molten iron using coal |
| US4936908A (en) * | 1987-09-25 | 1990-06-26 | Nkk Corporation | Method for smelting and reducing iron ores |
| AU633153B2 (en) * | 1989-10-10 | 1993-01-21 | Ausmelt Pty Ltd | Recovery of ferro nickel from laterite and other oxide minerals |
| WO1991005879A1 (en) * | 1989-10-10 | 1991-05-02 | Ausmelt Pty. Ltd. | Smelting of nickel laterite and other iron containing nickel oxide materials |
-
1983
- 1983-12-30 JP JP58249040A patent/JPS60145307A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60145307A (ja) | 1985-07-31 |
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