BR0213573B1 - Método para produção de ferro fundido com baixo teor de fósforo - Google Patents

Método para produção de ferro fundido com baixo teor de fósforo

Info

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
Application number
BRPI0213573-6B1A
Other languages
English (en)
Other versions
BR0213573A (pt
Inventor
Hidetoshi Matsuno
Takeshi Murai
Yoshiteru Kikuchi
Eiji Sakurai
Ryohei Takehama
Ryo Kawabata
Satoshi Kohira
Ichiro Kikuchi
Manabu Tano
Hiroshi Shimizu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BR0213573A publication Critical patent/BR0213573A/pt
Publication of BR0213573B1 publication Critical patent/BR0213573B1/pt

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)
BRPI0213573-6B1A 2002-08-27 2002-08-27 Método para produção de ferro fundido com baixo teor de fósforo BR0213573B1 (pt)

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)

* Cited by examiner, † Cited by third party
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
WO2019172195A1 (ja) * 2018-03-07 2019-09-12 日本製鉄株式会社 溶銑の脱りん方法
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BR0213573A (pt) 2004-10-26
EP1533388A4 (en) 2011-02-02
WO2004020677A1 (ja) 2004-03-11
KR100681292B1 (ko) 2007-02-09
EP1533388B1 (en) 2013-08-14
EP1533388A1 (en) 2005-05-25
KR20040053371A (ko) 2004-06-23

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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.