ES2193954T3 - PROCEDURE FOR THE DECARBURATION AND DEFROSFORATION OF A FUSED METAL. - Google Patents
PROCEDURE FOR THE DECARBURATION AND DEFROSFORATION OF A FUSED METAL.Info
- Publication number
- ES2193954T3 ES2193954T3 ES00926586T ES00926586T ES2193954T3 ES 2193954 T3 ES2193954 T3 ES 2193954T3 ES 00926586 T ES00926586 T ES 00926586T ES 00926586 T ES00926586 T ES 00926586T ES 2193954 T3 ES2193954 T3 ES 2193954T3
- Authority
- ES
- Spain
- Prior art keywords
- dephosphorisation
- decarburisation
- defrosforation
- decarburation
- procedure
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000002184 metal Substances 0.000 title abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 238000007872 degassing Methods 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- 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
-
- 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
- C21C7/068—Decarburising
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention is related to a method of combined decarburisation/dephosphorisation of a molten metal, in particular for the production of ULC and/or SULC molten steels, wherein said dephosphorisation is achieved by blowing lime containing fluxes onto the steel bath during the decarburisation reaction in the degassing device. The present invention is also related to a multifunctional lance, which can be used to supply oxygen for decarburisation, as well as the powder containing lime based flux for dephosphorisation. Extra oxygen gas or solid oxides can be supplied to maintain the dephosphorisation process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99870098 | 1999-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2193954T3 true ES2193954T3 (en) | 2003-11-16 |
Family
ID=8243835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES00926586T Expired - Lifetime ES2193954T3 (en) | 1999-05-07 | 2000-05-05 | PROCEDURE FOR THE DECARBURATION AND DEFROSFORATION OF A FUSED METAL. |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1190104B1 (en) |
| JP (1) | JP2002544376A (en) |
| KR (1) | KR20020005741A (en) |
| CN (1) | CN1350594A (en) |
| AT (1) | ATE233828T1 (en) |
| AU (1) | AU4528900A (en) |
| BR (1) | BR0011233B1 (en) |
| CA (1) | CA2371652A1 (en) |
| DE (1) | DE60001576T2 (en) |
| ES (1) | ES2193954T3 (en) |
| PL (1) | PL353443A1 (en) |
| TR (2) | TR200201466T2 (en) |
| WO (1) | WO2000068442A1 (en) |
| ZA (1) | ZA200108634B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351399C (en) * | 2001-02-07 | 2007-11-28 | 新日本制铁株式会社 | Method for pig iron melt dephosphorize |
| DE102010007119B3 (en) * | 2010-02-05 | 2011-07-28 | Technometal GmbH, 47058 | Vakuumumlaufentgasungsanlage with pilot burner |
| CN103966400A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for dephosphorizing by using RH refining furnace |
| JP6782683B2 (en) * | 2017-11-06 | 2020-11-11 | 中外炉工業株式会社 | Decompression smelting tank |
| JP7052585B2 (en) * | 2018-06-18 | 2022-04-12 | 日本製鉄株式会社 | Dephosphorization method for molten steel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107718A (en) * | 1979-02-14 | 1980-08-19 | Nippon Steel Corp | Production of molten steel |
| US4426224A (en) * | 1981-12-25 | 1984-01-17 | Sumitomo Kinzoku Kogyo Kabushiki Gaisha | Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance |
| AU653294B2 (en) * | 1992-08-26 | 1994-09-22 | Nippon Steel Corporation | Process for vacuum degassing molten steel |
| CN1066774C (en) * | 1995-08-28 | 2001-06-06 | 新日本制铁株式会社 | Process for vacuum refining of molten steel and apparatus therefor |
-
2000
- 2000-05-05 CA CA002371652A patent/CA2371652A1/en not_active Abandoned
- 2000-05-05 CN CN00807279A patent/CN1350594A/en active Pending
- 2000-05-05 EP EP00926586A patent/EP1190104B1/en not_active Expired - Lifetime
- 2000-05-05 JP JP2000617211A patent/JP2002544376A/en active Pending
- 2000-05-05 BR BRPI0011233-0A patent/BR0011233B1/en not_active IP Right Cessation
- 2000-05-05 AU AU45289/00A patent/AU4528900A/en not_active Abandoned
- 2000-05-05 TR TR2002/01466T patent/TR200201466T2/en unknown
- 2000-05-05 DE DE60001576T patent/DE60001576T2/en not_active Expired - Lifetime
- 2000-05-05 WO PCT/BE2000/000050 patent/WO2000068442A1/en not_active Ceased
- 2000-05-05 KR KR1020017014230A patent/KR20020005741A/en not_active Withdrawn
- 2000-05-05 TR TR2001/03025T patent/TR200103025T2/en unknown
- 2000-05-05 AT AT00926586T patent/ATE233828T1/en not_active IP Right Cessation
- 2000-05-05 PL PL00353443A patent/PL353443A1/en unknown
- 2000-05-05 ES ES00926586T patent/ES2193954T3/en not_active Expired - Lifetime
-
2001
- 2001-10-19 ZA ZA200108634A patent/ZA200108634B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002544376A (en) | 2002-12-24 |
| DE60001576D1 (en) | 2003-04-10 |
| EP1190104B1 (en) | 2003-03-05 |
| KR20020005741A (en) | 2002-01-17 |
| DE60001576T2 (en) | 2004-08-26 |
| BR0011233A (en) | 2002-03-19 |
| TR200103025T2 (en) | 2002-03-21 |
| WO2000068442A1 (en) | 2000-11-16 |
| ATE233828T1 (en) | 2003-03-15 |
| AU4528900A (en) | 2000-11-21 |
| CA2371652A1 (en) | 2000-11-16 |
| BR0011233B1 (en) | 2009-01-13 |
| EP1190104A1 (en) | 2002-03-27 |
| TR200201466T2 (en) | 2002-07-22 |
| ZA200108634B (en) | 2003-01-20 |
| CN1350594A (en) | 2002-05-22 |
| PL353443A1 (en) | 2003-11-17 |
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