BR0213573B1 - Método para produção de ferro fundido com baixo teor de fósforo - Google Patents
Método para produção de ferro fundido com baixo teor de fósforoInfo
- Publication number
- BR0213573B1 BR0213573B1 BRPI0213573-6B1A BR0213573A BR0213573B1 BR 0213573 B1 BR0213573 B1 BR 0213573B1 BR 0213573 A BR0213573 A BR 0213573A BR 0213573 B1 BR0213573 B1 BR 0213573B1
- Authority
- BR
- Brazil
- Prior art keywords
- production
- cast iron
- low phosphorous
- phosphorous cast
- low
- Prior art date
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
- 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
- C21C7/064—Dephosphorising; Desulfurising
- C21C7/0645—Agents used for 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
- C21C1/02—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
- C21C1/02—Dephosphorising or desulfurising
- C21C1/025—Agents used for 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
- 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
- C21C5/32—Blowing from above
-
- 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
- C21C5/36—Processes yielding slags of special composition
-
- 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
- C21C7/072—Treatment with gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/008604 WO2004020677A1 (ja) | 2000-12-21 | 2002-08-27 | 低燐溶銑の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0213573A BR0213573A (pt) | 2004-10-26 |
BR0213573B1 true BR0213573B1 (pt) | 2013-11-12 |
Family
ID=33193190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0213573-6B1A BR0213573B1 (pt) | 2002-08-27 | 2002-08-27 | Método para produção de ferro fundido com baixo teor de fósforo |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1533388B1 (pt) |
KR (1) | KR100681292B1 (pt) |
BR (1) | BR0213573B1 (pt) |
WO (1) | WO2004020677A1 (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262387A (en) * | 1989-10-10 | 1993-11-16 | Basf Aktiengesellschaft | Pyridine derivatives and their use for controlling undesirable plant growth |
JP6291998B2 (ja) * | 2014-04-22 | 2018-03-14 | 新日鐵住金株式会社 | 溶銑の脱りん方法 |
CN111670258B (zh) * | 2018-03-07 | 2023-01-10 | 日本制铁株式会社 | 铁水的脱磷方法 |
CN112853043A (zh) * | 2020-12-30 | 2021-05-28 | 唐山燕山钢铁有限公司 | 降低q460c-2低合金钢冶炼成本的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819423A (ja) * | 1981-07-27 | 1983-02-04 | Kawasaki Steel Corp | 上、底吹き複合吹錬転炉における精錬方法 |
JPS58147506A (ja) * | 1982-02-27 | 1983-09-02 | Kawasaki Steel Corp | 溶銑予備処理方法 |
JP3440630B2 (ja) * | 1995-05-12 | 2003-08-25 | 住友金属工業株式会社 | 溶銑脱燐方法 |
JP3458890B2 (ja) * | 1998-03-19 | 2003-10-20 | Jfeスチール株式会社 | 溶銑精錬方法 |
JP3332010B2 (ja) * | 1998-06-18 | 2002-10-07 | 日本鋼管株式会社 | 低燐溶銑の製造方法 |
JP3525766B2 (ja) * | 1998-10-23 | 2004-05-10 | 住友金属工業株式会社 | 溶銑の脱りん方法 |
JP4649694B2 (ja) | 1999-12-21 | 2011-03-16 | Jfeスチール株式会社 | 溶銑の精錬方法 |
-
2002
- 2002-08-27 EP EP02807713.9A patent/EP1533388B1/en not_active Expired - Lifetime
- 2002-08-27 WO PCT/JP2002/008604 patent/WO2004020677A1/ja active Application Filing
- 2002-08-27 KR KR1020047007980A patent/KR100681292B1/ko active IP Right Grant
- 2002-08-27 BR BRPI0213573-6B1A patent/BR0213573B1/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100681292B1 (ko) | 2007-02-09 |
EP1533388A1 (en) | 2005-05-25 |
EP1533388B1 (en) | 2013-08-14 |
KR20040053371A (ko) | 2004-06-23 |
EP1533388A4 (en) | 2011-02-02 |
WO2004020677A1 (ja) | 2004-03-11 |
BR0213573A (pt) | 2004-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O E 13O DA LPI |
|
B12B | Appeal against refusal [chapter 12.2 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 12/11/2013, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 19A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2640 DE 10-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |