BRPI0506964A - método para produzir aço de baixo teor em carbono - Google Patents

método para produzir aço de baixo teor em carbono

Info

Publication number
BRPI0506964A
BRPI0506964A BRPI0506964-5A BRPI0506964A BRPI0506964A BR PI0506964 A BRPI0506964 A BR PI0506964A BR PI0506964 A BRPI0506964 A BR PI0506964A BR PI0506964 A BRPI0506964 A BR PI0506964A
Authority
BR
Brazil
Prior art keywords
carbon steel
stage
low carbon
produce low
enveloped
Prior art date
Application number
BRPI0506964-5A
Other languages
English (en)
Inventor
Michael Francis Riley
William John Mahoney
Original Assignee
Praxair Technology Inc
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 by Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BRPI0506964A publication Critical patent/BRPI0506964A/pt
Publication of BRPI0506964B1 publication Critical patent/BRPI0506964B1/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
    • C21C5/32—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
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • 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
    • 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
    • C21C2300/00—Process aspects
    • C21C2300/02—Foam creation
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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

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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

MéTODO PARA PRODUZIR AçO DE BAIXO TEOR EM CARBONO Um método para produzir aço de baixo teor em carbono no qual aço fundido é descarburado em um procedimento de refino de três estágios compreendendo um primeiro estágio no qual oxigênio é proporcionado para descarburação envelopado em um protetor de gás, um segundo estágio no qual oxigênio é proporcionado para descarburação envelopado em um protetor de chama, e um terceiro estágio no qual gás inerte ou oxigênio e gás inerte é proporcionado envelopado em um protetor de chama.
BRPI0506964-5A 2004-01-23 2005-01-19 Método para produzir aço de baixo teor em carbono BRPI0506964B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/762,298 2004-01-23
US10/762,298 US6932854B2 (en) 2004-01-23 2004-01-23 Method for producing low carbon steel
PCT/US2005/002102 WO2005069977A2 (en) 2004-01-23 2005-01-19 Method for producing low carbon steel

Publications (2)

Publication Number Publication Date
BRPI0506964A true BRPI0506964A (pt) 2007-07-03
BRPI0506964B1 BRPI0506964B1 (pt) 2015-08-04

Family

ID=34794850

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0506964-5A BRPI0506964B1 (pt) 2004-01-23 2005-01-19 Método para produzir aço de baixo teor em carbono

Country Status (15)

Country Link
US (1) US6932854B2 (pt)
EP (1) EP1721017B1 (pt)
JP (1) JP4938464B2 (pt)
KR (1) KR101165104B1 (pt)
CN (1) CN100507014C (pt)
AU (1) AU2005207009A1 (pt)
BR (1) BRPI0506964B1 (pt)
CA (1) CA2555472C (pt)
ES (1) ES2405998T3 (pt)
MX (1) MXPA06008215A (pt)
PL (1) PL1721017T3 (pt)
PT (1) PT1721017E (pt)
TW (1) TWI333981B (pt)
WO (1) WO2005069977A2 (pt)
ZA (1) ZA200605710B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749109B1 (en) * 2004-05-14 2009-07-22 Linde, Inc. Refining molten metal
CN101568651B (zh) * 2006-12-15 2012-06-27 普莱克斯技术有限公司 惰性气体注入方法
DE102008050599B3 (de) * 2008-10-09 2010-07-29 Uhde Gmbh Vorrichtung und Verfahren zur Verteilung von Primärluft in Koksöfen
US8323558B2 (en) * 2009-11-30 2012-12-04 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic control of lance utilizing counterflow fluidic techniques
US20110127701A1 (en) * 2009-11-30 2011-06-02 Grant Michael G K Dynamic control of lance utilizing co-flow fluidic techniques
US8377372B2 (en) * 2009-11-30 2013-02-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic lances utilizing fluidic techniques
US10781499B2 (en) * 2018-01-17 2020-09-22 Air Products And Chemicals, Inc. Bottom stirring tuyere and method for a basic oxygen furnace

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5526685B2 (pt) 1973-11-26 1980-07-15
CA1092828A (en) * 1978-10-18 1981-01-06 William E. Creswick Basic oxygen furnace argon refining blow
US4373949A (en) * 1979-02-07 1983-02-15 Union Carbide Corporation Method for increasing vessel lining life for basic oxygen furnaces
US4397685A (en) * 1982-03-26 1983-08-09 Union Carbide Corporation Production of ultra low carbon steel by the basic oxygen process
US4599107A (en) * 1985-05-20 1986-07-08 Union Carbide Corporation Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining
JPH01123016A (ja) * 1987-11-06 1989-05-16 Nkk Corp 転炉吹錬法
JPH07331315A (ja) 1994-06-02 1995-12-19 Nippon Steel Corp 極低炭素鋼の転炉精錬方法
US5814125A (en) * 1997-03-18 1998-09-29 Praxair Technology, Inc. Method for introducing gas into a liquid
US6125133A (en) * 1997-03-18 2000-09-26 Praxair, Inc. Lance/burner for molten metal furnace
US6176894B1 (en) * 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
TR200100606T2 (tr) * 1998-08-28 2001-10-22 Voest-Alpine Industrieanlagenbau Gmbh Bir metal eriyiğinin hazırlanması için yöntem ve karşılık gelen çok fonksiyonlu püskürtücü
WO2000056585A2 (de) 1999-03-22 2000-09-28 Continental Teves Ag & Co. Ohg Schaltungsanordnung und verfahren zur konfiguration einer schnittstelle von einer steuerungs- oder regelungseinrichtung
US6171544B1 (en) * 1999-04-02 2001-01-09 Praxair Technology, Inc. Multiple coherent jet lance
US6241510B1 (en) * 2000-02-02 2001-06-05 Praxair Technology, Inc. System for providing proximate turbulent and coherent gas jets
US6432163B1 (en) * 2001-06-22 2002-08-13 Praxair Technology, Inc. Metal refining method using differing refining oxygen sequence
US6604937B1 (en) * 2002-05-24 2003-08-12 Praxair Technology, Inc. Coherent jet system with single ring flame envelope
GB0213376D0 (en) * 2002-06-11 2002-07-24 Boc Group Plc Refining ferroalloys
US6773484B2 (en) * 2002-06-26 2004-08-10 Praxair Technology, Inc. Extensionless coherent jet system with aligned flame envelope ports
US6875398B2 (en) * 2003-01-15 2005-04-05 Praxair Technology, Inc. Coherent jet system with outwardly angled flame envelope ports

Also Published As

Publication number Publication date
WO2005069977A2 (en) 2005-08-04
EP1721017A2 (en) 2006-11-15
CA2555472A1 (en) 2005-08-04
US20050160876A1 (en) 2005-07-28
TWI333981B (en) 2010-12-01
KR101165104B1 (ko) 2012-07-12
US6932854B2 (en) 2005-08-23
PT1721017E (pt) 2013-07-26
WO2005069977A3 (en) 2006-02-23
JP2007518883A (ja) 2007-07-12
KR20060130124A (ko) 2006-12-18
AU2005207009A1 (en) 2005-08-04
EP1721017B1 (en) 2013-04-24
CA2555472C (en) 2009-04-21
PL1721017T3 (pl) 2013-09-30
MXPA06008215A (es) 2006-09-06
CN100507014C (zh) 2009-07-01
JP4938464B2 (ja) 2012-05-23
TW200525041A (en) 2005-08-01
BRPI0506964B1 (pt) 2015-08-04
ES2405998T3 (es) 2013-06-04
CN1910295A (zh) 2007-02-07
EP1721017A4 (en) 2010-01-20
ZA200605710B (en) 2008-01-30

Similar Documents

Publication Publication Date Title
BRPI0506964A (pt) método para produzir aço de baixo teor em carbono
TW200734102A (en) Braze-welding of steel workpieces with copper wire and oxidizing gas mixture
IN2014KN01258A (pt)
ZA200409795B (en) Refining ferroalloys.
PT1529116E (pt) Métodos para o tratamento da demência com base no genótipo da apo e
ATE494271T1 (de) Verfahren zur reinigung und aufkonzentrierung von distickstoffmonoxid
WO2004104232A8 (de) Verfahren zur erzeugung einer schaumschlacke auf hochchromhaltigen schmetzen in einem elektroofen
BR0317382A (pt) Processo de soldagem por arco voltaico de ferro fundido dútil
PL360864A1 (en) Method and oxygen lance designed for producing coherent gas stream with collinear passages of flame envelope
ATE417693T1 (de) Verfahren zum laserstrahlschweissen
TWI277654B (en) Method for operating blast furnace
BR0201028A (pt) Processo de refino de metal
CA2671148A1 (en) Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a ddd installation
TW200718809A (en) Plasma etching of tapered structures
PL1636390T3 (pl) Sposób obróbki roztopionych metali środkiem do świeżenia opartym na tlenie
TW200741014A (en) Process for dephosphorizing hot metal
PL348064A1 (en) Method for denitriding molten steel during its production
WO2008156097A1 (ja) プラズマ切断方法
CA2671074A1 (en) Method and device for producing pig-iron based stainless steel without using a supply of electrical energy
MX2024009334A (es) Métodos de tratamiento de un sujeto por covid-19 persistente y composiciones para usarse en el mismo
UA91472C2 (ru) СПОСОБ дожигания отходящих Конвертерных ГАЗОВ В Охладителе Конвертерных ГАЗОВ
TW200618926A (en) Welding flux
UA97327C2 (ru) СПОСОБ ПОЛУЧЕНИЯ Пенистого шлака на РАСПЛАВАх АУСТЕНИТОВыХ нержавеющих сталей в дуговой электропечи
UA40648U (ru) Способ внепечной обработки стали на установках типа "ковш-печь"
PH12012000142A1 (en) Method of producing steel

Legal Events

Date Code Title Description
B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 04/08/2015, 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 16A 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 2614 DE 09-02-2021 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.