SE8305260D0 - STALFRAMSTELLNINGSFORFARANDE - Google Patents
STALFRAMSTELLNINGSFORFARANDEInfo
- Publication number
- SE8305260D0 SE8305260D0 SE8305260A SE8305260A SE8305260D0 SE 8305260 D0 SE8305260 D0 SE 8305260D0 SE 8305260 A SE8305260 A SE 8305260A SE 8305260 A SE8305260 A SE 8305260A SE 8305260 D0 SE8305260 D0 SE 8305260D0
- Authority
- SE
- Sweden
- Prior art keywords
- iron
- charge material
- slag
- oxide content
- oxide
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 6
- 239000000292 calcium oxide Substances 0.000 abstract 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000012141 concentrate Substances 0.000 abstract 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 3
- 229960005191 ferric oxide Drugs 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 3
- 235000013980 iron oxide Nutrition 0.000 abstract 3
- 239000000395 magnesium oxide Substances 0.000 abstract 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000001465 metallisation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000007790 solid phase Substances 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
- C21B13/008—Use of special additives or fluxing agents
-
- 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 And Refinement Of Metals (AREA)
Abstract
When manufacturing liquid steel from highly concentrated iron-ore concentrate, especially iron-ore concentrate containing phosphorous, a charge material is produced by sintering a mixture comprising substantially the afore-mentioned concentrate and basic slag-forming agents including CaO and MgO. The composition of the mixture is adjusted so that the charge material contains calcium oxide in an amount corresponding to at least 35% of the total weight of the non-iron oxide content of the charge material, and calcium oxide and magnesium oxide in a total amount corresponding to at least 55% of the total weight of the non-iron oxide content of the charge material, and also exhibits a weight ratio of CaO: MgO of at least 1.3. The charge material is reduced in solid phase to form sponge iron having a degree of metallization of at least 80 %,whereafter the sponge iron, optionally together with another iron-bearing material, is smelted in a steel furnace under such conditions as to maintain in the slag formed during the smelting process an iron-oxide content of at least about 5% by weight, and the resultant liquid steel and slag are separated from one another.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8305260A SE448380C (en) | 1983-09-28 | 1983-09-28 | Process for the preparation of high-grade crude steel, in particular phosphorus-containing iron ore and charge material for use in the process |
| GB08424245A GB2148327B (en) | 1983-09-28 | 1984-09-26 | Making liquid steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8305260A SE448380C (en) | 1983-09-28 | 1983-09-28 | Process for the preparation of high-grade crude steel, in particular phosphorus-containing iron ore and charge material for use in the process |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| SE8305260D0 true SE8305260D0 (en) | 1983-09-28 |
| SE8305260L SE8305260L (en) | 1985-03-29 |
| SE448380B SE448380B (en) | 1987-02-16 |
| SE448380C SE448380C (en) | 1994-01-17 |
Family
ID=20352673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8305260A SE448380C (en) | 1983-09-28 | 1983-09-28 | Process for the preparation of high-grade crude steel, in particular phosphorus-containing iron ore and charge material for use in the process |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2148327B (en) |
| SE (1) | SE448380C (en) |
-
1983
- 1983-09-28 SE SE8305260A patent/SE448380C/en not_active IP Right Cessation
-
1984
- 1984-09-26 GB GB08424245A patent/GB2148327B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB8424245D0 (en) | 1984-10-31 |
| SE448380B (en) | 1987-02-16 |
| GB2148327A (en) | 1985-05-30 |
| SE8305260L (en) | 1985-03-29 |
| GB2148327B (en) | 1987-06-24 |
| SE448380C (en) | 1994-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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