BR112023024464A2 - Método para refinar ferro fundido - Google Patents
Método para refinar ferro fundidoInfo
- Publication number
- BR112023024464A2 BR112023024464A2 BR112023024464A BR112023024464A BR112023024464A2 BR 112023024464 A2 BR112023024464 A2 BR 112023024464A2 BR 112023024464 A BR112023024464 A BR 112023024464A BR 112023024464 A BR112023024464 A BR 112023024464A BR 112023024464 A2 BR112023024464 A2 BR 112023024464A2
- Authority
- BR
- Brazil
- Prior art keywords
- cast iron
- iron
- untreated
- mass
- decarburization
- Prior art date
Links
- 229910001018 Cast iron Inorganic materials 0.000 title abstract 13
- 238000000034 method Methods 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 9
- 229910052742 iron Inorganic materials 0.000 abstract 4
- 238000005261 decarburization Methods 0.000 abstract 3
- 238000002844 melting Methods 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 3
- 238000007670 refining Methods 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000805 Pig iron Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000009849 vacuum degassing Methods 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
-
- 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
-
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- 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)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021088031 | 2021-05-26 | ||
| PCT/JP2022/018168 WO2022249798A1 (ja) | 2021-05-26 | 2022-04-19 | 溶鉄の精錬方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112023024464A2 true BR112023024464A2 (pt) | 2024-02-06 |
Family
ID=84229902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112023024464A BR112023024464A2 (pt) | 2021-05-26 | 2022-04-19 | Método para refinar ferro fundido |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP4328330A1 (zh) |
| JP (1) | JP7384294B2 (zh) |
| KR (1) | KR20230162108A (zh) |
| CN (1) | CN117377781A (zh) |
| BR (1) | BR112023024464A2 (zh) |
| TW (1) | TWI817507B (zh) |
| WO (1) | WO2022249798A1 (zh) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147509A (ja) * | 1982-02-26 | 1983-09-02 | Kawasaki Steel Corp | ステンレス鋼の溶製方法 |
| JPS5925916A (ja) * | 1982-08-02 | 1984-02-10 | Kawasaki Steel Corp | 含クロム合金銑の精錬方法 |
| JPS60194009A (ja) * | 1984-03-14 | 1985-10-02 | Kawasaki Steel Corp | ステンレス鋼の溶製方法 |
| JPS61223117A (ja) * | 1985-03-29 | 1986-10-03 | Kawasaki Steel Corp | 溶融スラグ内金属酸化物の還元回収方法 |
| JP3309395B2 (ja) * | 1990-12-25 | 2002-07-29 | 住友金属工業株式会社 | 転炉精錬方法 |
| JP2754983B2 (ja) * | 1991-09-26 | 1998-05-20 | 住友金属工業株式会社 | 転炉精錬方法 |
| JP3496529B2 (ja) | 1998-07-29 | 2004-02-16 | 住友金属工業株式会社 | Ｒｈ真空精錬方法 |
| JP3922181B2 (ja) | 2002-12-27 | 2007-05-30 | Ｊｆｅスチール株式会社 | 高清浄鋼の溶製方法 |
| JP5092245B2 (ja) | 2006-02-09 | 2012-12-05 | Ｊｆｅスチール株式会社 | 溶鋼の脱窒方法 |
| JP5428447B2 (ja) * | 2008-03-31 | 2014-02-26 | Ｊｆｅスチール株式会社 | Ｒｈ真空脱ガス装置における溶鋼の精錬方法 |
| JP5526565B2 (ja) * | 2009-03-09 | 2014-06-18 | Ｊｆｅスチール株式会社 | 転炉製鋼法 |
| JP5589688B2 (ja) * | 2009-09-10 | 2014-09-17 | Ｊｆｅスチール株式会社 | 溶銑の製造方法 |
| JP5910579B2 (ja) * | 2013-08-01 | 2016-04-27 | Ｊｆｅスチール株式会社 | 極低窒素純鉄の溶製方法 |
| CN109852766B (zh) * | 2018-12-05 | 2020-11-03 | 敬业钢铁有限公司 | 一种rh炉精炼氢氧控制工艺 |
| CN111270036A (zh) * | 2020-04-05 | 2020-06-12 | 上海泰普星坦新材料有限公司 | 一种氢能直接还原生产海绵铁的系统和工艺方法 |
-
2022
- 2022-04-19 CN CN202280037168.2A patent/CN117377781A/zh active Pending
- 2022-04-19 JP JP2022545913A patent/JP7384294B2/ja active Active
- 2022-04-19 EP EP22811072.2A patent/EP4328330A1/en active Pending
- 2022-04-19 WO PCT/JP2022/018168 patent/WO2022249798A1/ja active Application Filing
- 2022-04-19 KR KR1020237037654A patent/KR20230162108A/ko unknown
- 2022-04-19 BR BR112023024464A patent/BR112023024464A2/pt unknown
- 2022-05-18 TW TW111118446A patent/TWI817507B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230162108A (ko) | 2023-11-28 |
| JP7384294B2 (ja) | 2023-11-21 |
| TW202246528A (zh) | 2022-12-01 |
| TWI817507B (zh) | 2023-10-01 |
| JPWO2022249798A1 (zh) | 2022-12-01 |
| WO2022249798A1 (ja) | 2022-12-01 |
| EP4328330A1 (en) | 2024-02-28 |
| CN117377781A (zh) | 2024-01-09 |
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