GB1563411A - Method of desulphurizing molten steel - Google Patents
Method of desulphurizing molten steel Download PDFInfo
- Publication number
- GB1563411A GB1563411A GB4297676A GB4297676A GB1563411A GB 1563411 A GB1563411 A GB 1563411A GB 4297676 A GB4297676 A GB 4297676A GB 4297676 A GB4297676 A GB 4297676A GB 1563411 A GB1563411 A GB 1563411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slag
- bath
- vacuum
- steel
- molten steel
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims description 96
- 239000010959 steel Substances 0.000 title claims description 96
- 238000000034 method Methods 0.000 title claims description 56
- 239000002893 slag Substances 0.000 claims description 125
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 34
- 239000005864 Sulphur Substances 0.000 claims description 34
- 238000002844 melting Methods 0.000 claims description 34
- 238000010926 purge Methods 0.000 claims description 31
- 230000008018 melting Effects 0.000 claims description 29
- 238000011282 treatment Methods 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 23
- 238000010079 rubber tapping Methods 0.000 claims description 20
- 238000013019 agitation Methods 0.000 claims description 19
- 239000011449 brick Substances 0.000 claims description 19
- 238000009489 vacuum treatment Methods 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 235000012255 calcium oxide Nutrition 0.000 claims description 7
- 230000002301 combined effect Effects 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000002939 deleterious effect Effects 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- -1 aluminium nitrides Chemical class 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000005243 fluidization Methods 0.000 claims description 3
- 230000003389 potentiating effect Effects 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 5
- 238000009849 vacuum degassing Methods 0.000 claims 5
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000002226 simultaneous effect Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 description 27
- 230000008569 process Effects 0.000 description 16
- 229910001570 bauxite Inorganic materials 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000007792 addition Methods 0.000 description 8
- 239000010436 fluorite Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 229910005347 FeSi Inorganic materials 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 206010000060 Abdominal distension Diseases 0.000 description 3
- 208000024330 bloating Diseases 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910004709 CaSi Inorganic materials 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910015136 FeMn Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011822 basic refractory Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62334275A | 1975-10-17 | 1975-10-17 | |
| US05/699,072 US4069039A (en) | 1976-06-23 | 1976-06-23 | Method for desulfurization using arc heat under vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1563411A true GB1563411A (en) | 1980-03-26 |
Family
ID=27089429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4297676A Expired GB1563411A (en) | 1975-10-17 | 1976-10-15 | Method of desulphurizing molten steel |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2646437A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2328047A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1563411A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044743A (zh) * | 2022-05-26 | 2022-09-13 | 江阴兴澄特种钢铁有限公司 | 一种控制低碳含硫钢在vd炉脱硫率的方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2396087A1 (fr) * | 1977-09-02 | 1979-01-26 | Tscherna Metalurgia | Procede et dispositif pour le raffinage de masses fondues a base de fer |
| AU2009279363B2 (en) | 2008-08-04 | 2015-11-19 | Nucor Corporation | Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE341412B (enrdf_load_stackoverflow) * | 1969-07-15 | 1971-12-27 | Asea Ab | |
| GB1384259A (en) * | 1972-02-01 | 1975-02-19 | Finkl & Sons Co | Method and apparatus for desulphurizing steel |
-
1976
- 1976-10-14 DE DE19762646437 patent/DE2646437A1/de not_active Ceased
- 1976-10-15 GB GB4297676A patent/GB1563411A/en not_active Expired
- 1976-10-15 FR FR7631207A patent/FR2328047A1/fr active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044743A (zh) * | 2022-05-26 | 2022-09-13 | 江阴兴澄特种钢铁有限公司 | 一种控制低碳含硫钢在vd炉脱硫率的方法 |
| CN115044743B (zh) * | 2022-05-26 | 2023-09-15 | 江阴兴澄特种钢铁有限公司 | 一种控制低碳含硫钢在vd炉脱硫率的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2646437A1 (de) | 1977-04-21 |
| FR2328047B1 (enrdf_load_stackoverflow) | 1980-09-12 |
| FR2328047A1 (fr) | 1977-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19961014 |