GB830592A - Process for reducing iron oxides - Google Patents
Process for reducing iron oxidesInfo
- Publication number
- GB830592A GB830592A GB16894/58A GB1689458A GB830592A GB 830592 A GB830592 A GB 830592A GB 16894/58 A GB16894/58 A GB 16894/58A GB 1689458 A GB1689458 A GB 1689458A GB 830592 A GB830592 A GB 830592A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- oxygen
- line
- reducing
- ore
- 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
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract 5
- 235000013980 iron oxide Nutrition 0.000 title 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 5
- 239000001301 oxygen Substances 0.000 abstract 5
- 229910052760 oxygen Inorganic materials 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 2
- 239000000567 combustion gas Substances 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 2
- 238000002407 reforming Methods 0.000 abstract 2
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000005406 washing Methods 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
- C21B13/14—Multi-stage processes processes carried out in different vessels or 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 Of Iron (AREA)
Abstract
830,592. Reducing iron ore. INLAND STEEL CO. May 27, 1958, No. 16894/58.. Class 72 The reduction of iron oxide comprises reducing by a gas and melting in a hearth zone wherein oxygen rich gas containing at least 80% oxygen and fuel having an H : C atomic ratio of less than 3 are burnt, the combustion gas having a CO 2 : CO ratio of 0.7 to 3, reforming the gas by the introduction of additional fuel and oxygen in a reforming zone to produce a reformed gas with a CO:CO 2 ratio of at least 7, an H 2 :CO 2 ratio not greater than 1 and a content of not more than 10% CO 2 , reducing a major portion of the iron oxide ore with the gas between 900‹ and 1800‹F. the mixture of incompletely reduced ore being melted in the hearth zone with a surfeit of carbonaceous material to complete the reduction. As shown, incompletely reduced ore, coal, and oxygen are introduced to hearth zone 10 through lines 11, 39, and 13 with combustion gas, slag, and metal leave by lines 19, 18 and 17. The gas goes. to reformer 21 to which oxygen and coal are supplied drawn through line 31 to pump 32, repasses through line 22, and reformed gas goes to heat exchanger 26 where it is cooled prior to the removal of ash by washing with liquid sprays in washer 24. Clean gas is drawn through line 31 to pump 32 repasses through the heat exchanger, and enters the reducing column 12 which it leaves through line 38. Fresh ore is dried at 36 and enters the reducing column through line 37. The quantity of gas produced in the hearth zone, together with the additional quantity produced on reformation, should equal the quantity of gas required by the reducing column. U.S.A. Specifications 2,526,658 and 2,750,277 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16894/58A GB830592A (en) | 1958-05-27 | 1958-05-27 | Process for reducing iron oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16894/58A GB830592A (en) | 1958-05-27 | 1958-05-27 | Process for reducing iron oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB830592A true GB830592A (en) | 1960-03-16 |
Family
ID=10085612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16894/58A Expired GB830592A (en) | 1958-05-27 | 1958-05-27 | Process for reducing iron oxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB830592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248627A (en) * | 1978-05-16 | 1981-02-03 | Trw Inc. | Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures |
-
1958
- 1958-05-27 GB GB16894/58A patent/GB830592A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248627A (en) * | 1978-05-16 | 1981-02-03 | Trw Inc. | Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures |
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