WO2016012003A1 - Verfahren zur nickel pig iron (npi)-entkohlung im aod-konverter - Google Patents
Verfahren zur nickel pig iron (npi)-entkohlung im aod-konverter Download PDFInfo
- Publication number
- WO2016012003A1 WO2016012003A1 PCT/DE2015/100290 DE2015100290W WO2016012003A1 WO 2016012003 A1 WO2016012003 A1 WO 2016012003A1 DE 2015100290 W DE2015100290 W DE 2015100290W WO 2016012003 A1 WO2016012003 A1 WO 2016012003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- decarburization
- npi
- pig iron
- oxygen
- melt
- 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.)
- Ceased
Links
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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
-
- 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
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
-
- 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
- Y02P10/20—Recycling
Definitions
- the invention relates to a process for nickel pig iron (NPI) decarburization
- the quality of these materials usually requires an aftertreatment.
- the object of the invention is to improve the economics of decarburization of nickel pig iron (NPI) in the AOD converter.
- the invention relates to a method for nickel pig Iran decarburization in an AOO converter, wherein a mixture consisting of oxygen and carbon dioxide is fed to the melt.
- the oxygen is preferably inflated onto the melt, while the carbon dioxide is blown into the melt.
- the CO 2 is injected through submerged nozzles in the molten metal.
- Temperature development is not kept with species-specific material and enormous amounts of slag formers in temperature-friendly range, but with an oxygen / carbon dioxide mixture, which has the property of both conditions.
- thermal dissociation yields another atom of oxygen and increases the reaction rate by 50%.
- 80 kWh / t of melt correspond to: 0.2 1 LC NPI or 37.4 Nm3 C02
- C02 thus means a significant increase in production of up to 20%. and a shortening of the refining time by a minimum of 30%.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR112017001158A BR112017001158A2 (pt) | 2014-07-23 | 2015-07-09 | processo para descarbonização de ferro gusa de níquel (níckel pig iron (npi)) no conversor aod |
| EP15781571.3A EP3172344A1 (de) | 2014-07-23 | 2015-07-09 | Verfahren zur nickel pig iron (npi)-entkohlung im aod-konverter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014011231.4A DE102014011231A1 (de) | 2014-07-23 | 2014-07-23 | Verfahren zur Nickel Pig Iron (NPI)- Entkohlung im AOD -Konverter |
| DE102014011231.4 | 2014-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016012003A1 true WO2016012003A1 (de) | 2016-01-28 |
Family
ID=54330566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2015/100290 Ceased WO2016012003A1 (de) | 2014-07-23 | 2015-07-09 | Verfahren zur nickel pig iron (npi)-entkohlung im aod-konverter |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3172344A1 (de) |
| BR (1) | BR112017001158A2 (de) |
| DE (1) | DE102014011231A1 (de) |
| WO (1) | WO2016012003A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536472A (zh) * | 2023-03-24 | 2023-08-04 | 湖南华菱涟源钢铁有限公司 | 用于转炉冶炼含镍钢水的方法和含镍钢水 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1964092A1 (de) | 1968-12-23 | 1970-07-02 | Int Nickel Ltd | Verfahren zum Erschmelzen einer niedriggekohlten Nickel-Chrom-Eisen-Legierung |
| DE2525355A1 (de) | 1974-06-07 | 1975-12-18 | British Steel Corp | Verfahren und vorrichtung zum frischen von eisen |
| SU624923A1 (ru) * | 1977-03-14 | 1978-08-08 | Центральный Ордена Трудового Красного Знамени Институт Черной Металлургии Имени И.П.Бардина | Способ производства стали |
| EP0005506A1 (de) * | 1978-05-11 | 1979-11-28 | BASF Aktiengesellschaft | Verfahren zur Behandlung von Roheisen- und Stahlschmelzen bzw. Legierungen |
| US4555266A (en) * | 1981-10-05 | 1985-11-26 | Korf Technologies, Inc. | Method and apparatus for treating liquid metal in a vessel |
| EP0392239A1 (de) * | 1989-04-13 | 1990-10-17 | Messer Griesheim Gmbh | Verfahren zur Herstellung von legierten Stahlmarken |
| DE69020596T2 (de) | 1989-02-21 | 1996-01-18 | Nippon Kokan Kk | Verfahren zur Schmelzreduktion von Nickelerzen. |
| DE19608530C2 (de) | 1996-02-09 | 1999-01-14 | Eisenbau Essen Gmbh | Verwendung von reinem CO¶2¶-Gas oder einem im wesentlichen CO¶2¶ enthaltenden Gas als Trägergas bei der Behandlung von Stahl in einem Lichtbogenofen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA909149B (en) * | 1989-06-02 | 1991-12-24 | Cra Services | Manufacture of ferroalloys using a molten bath reactor |
| US5749939A (en) * | 1996-12-04 | 1998-05-12 | Armco Inc. | Melting of NI laterite in making NI alloyed iron or steel |
| CN102312035A (zh) * | 2011-07-07 | 2012-01-11 | 山西太钢不锈钢股份有限公司 | 一种使用铬镍生铁生产高强度耐候钢的冶炼方法 |
-
2014
- 2014-07-23 DE DE102014011231.4A patent/DE102014011231A1/de not_active Withdrawn
-
2015
- 2015-07-09 EP EP15781571.3A patent/EP3172344A1/de not_active Withdrawn
- 2015-07-09 WO PCT/DE2015/100290 patent/WO2016012003A1/de not_active Ceased
- 2015-07-09 BR BR112017001158A patent/BR112017001158A2/pt not_active Application Discontinuation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1964092A1 (de) | 1968-12-23 | 1970-07-02 | Int Nickel Ltd | Verfahren zum Erschmelzen einer niedriggekohlten Nickel-Chrom-Eisen-Legierung |
| DE2525355A1 (de) | 1974-06-07 | 1975-12-18 | British Steel Corp | Verfahren und vorrichtung zum frischen von eisen |
| SU624923A1 (ru) * | 1977-03-14 | 1978-08-08 | Центральный Ордена Трудового Красного Знамени Институт Черной Металлургии Имени И.П.Бардина | Способ производства стали |
| EP0005506A1 (de) * | 1978-05-11 | 1979-11-28 | BASF Aktiengesellschaft | Verfahren zur Behandlung von Roheisen- und Stahlschmelzen bzw. Legierungen |
| US4555266A (en) * | 1981-10-05 | 1985-11-26 | Korf Technologies, Inc. | Method and apparatus for treating liquid metal in a vessel |
| DE69020596T2 (de) | 1989-02-21 | 1996-01-18 | Nippon Kokan Kk | Verfahren zur Schmelzreduktion von Nickelerzen. |
| EP0392239A1 (de) * | 1989-04-13 | 1990-10-17 | Messer Griesheim Gmbh | Verfahren zur Herstellung von legierten Stahlmarken |
| DE19608530C2 (de) | 1996-02-09 | 1999-01-14 | Eisenbau Essen Gmbh | Verwendung von reinem CO¶2¶-Gas oder einem im wesentlichen CO¶2¶ enthaltenden Gas als Trägergas bei der Behandlung von Stahl in einem Lichtbogenofen |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3172344A1 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536472A (zh) * | 2023-03-24 | 2023-08-04 | 湖南华菱涟源钢铁有限公司 | 用于转炉冶炼含镍钢水的方法和含镍钢水 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3172344A1 (de) | 2017-05-31 |
| BR112017001158A2 (pt) | 2017-11-14 |
| DE102014011231A1 (de) | 2016-01-28 |
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