BR9809070A - Mistura dessulfurante e método para dessulfurar ferro fundido - Google Patents

Mistura dessulfurante e método para dessulfurar ferro fundido

Info

Publication number
BR9809070A
BR9809070A BR9809070-4A BR9809070A BR9809070A BR 9809070 A BR9809070 A BR 9809070A BR 9809070 A BR9809070 A BR 9809070A BR 9809070 A BR9809070 A BR 9809070A
Authority
BR
Brazil
Prior art keywords
approximately
composition
desulfurizing
hot metal
cast iron
Prior art date
Application number
BR9809070-4A
Other languages
English (en)
Inventor
Brian Mark Kinsman
Leon A Luickx
James H Young Jr
Robert V Branion Jr
Original Assignee
Reactive Metals & Alloys Corp
Uss Eng & Consult
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 Reactive Metals & Alloys Corp, Uss Eng & Consult filed Critical Reactive Metals & Alloys Corp
Publication of BR9809070A publication Critical patent/BR9809070A/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
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Patente de Invenção:<B>"MISTURA DESSULFURANTE E MéTODO PARA DESSULFURAR FERRO FUNDIDO"<D>. Uma composição dessulfurante contém desde aproximadamente 3% até aproximadamente 20% de alumínio metálico particulado, aproximadamente 5% até aproximadamente 30% de alumina particulada, aproximadamente 0,5% até aproximadamente 12% de material hidrocarbono particulado ou outra composição de gerar gás e o calcário de balanceamento mais impurezas. Preferencialmente escória de alumínio é a fonte de alumínio metálico e alumina. A composição dessulfurante é injetada dentro do ferro fundido desde um alto forno preferencialmente em uma quantidade de 0,7 a 7,5 quilogramas de composição dessulfurante por ton (907,2 kg) de metal quente. A composição dessulfurante pode ser injetada como uma mistura ou co-injetada dentro do metal quente através de uma lança usando um gás portador ou amortecido dentro do metal quente enquanto ela está sendo derramada no concha. Pelo menos para conchas torpedo, a composição de dessulfuração pode ser colocada na concha antes que o metal quente seja derramado nela.
BR9809070-4A 1997-04-07 1998-04-06 Mistura dessulfurante e método para dessulfurar ferro fundido BR9809070A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/826,880 US5873924A (en) 1997-04-07 1997-04-07 Desulfurizing mix and method for desulfurizing molten iron
PCT/US1998/006781 WO1998045484A1 (en) 1997-04-07 1998-04-06 Desulfurizing mix and method for desulfurizing molten iron

Publications (1)

Publication Number Publication Date
BR9809070A true BR9809070A (pt) 2000-08-08

Family

ID=25247757

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9809070-4A BR9809070A (pt) 1997-04-07 1998-04-06 Mistura dessulfurante e método para dessulfurar ferro fundido

Country Status (6)

Country Link
US (2) US5873924A (pt)
EP (1) EP0973951A1 (pt)
AU (1) AU6885898A (pt)
BR (1) BR9809070A (pt)
CA (1) CA2286221C (pt)
WO (1) WO1998045484A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857733A1 (de) * 1998-12-15 2000-06-21 Almamet Gmbh Entschwefelungsmittel
US6287774B1 (en) 1999-05-21 2001-09-11 Caliper Technologies Corp. Assay methods and system
JP3577997B2 (ja) * 1999-06-07 2004-10-20 Ｊｆｅスチール株式会社 溶銑の脱硫方法
GB0007073D0 (en) * 2000-03-24 2000-05-17 Qual Chem Limited Iron and steelmaking
US6372013B1 (en) 2000-05-12 2002-04-16 Marblehead Lime, Inc. Carrier material and desulfurization agent for desulfurizing iron
KR100504295B1 (ko) * 2000-06-14 2005-07-27 제이에프이 엔지니어링 가부시키가이샤 용선용 탈황제의 제조 방법 및 장치
DE10351686A1 (de) * 2003-11-06 2005-06-09 Sachtleben Chemie Gmbh Verfahren zum Einbringen von anorganischen Festkörpern in heiße, flüssige Schmelzen
JP2008523247A (ja) * 2004-12-07 2008-07-03 ニュー−アイロン テクノロジー リミテッド ライアビリティー カンパニー 金属鉄ナゲットを生成するための方法およびシステム
US7731778B2 (en) * 2006-03-27 2010-06-08 Magnesium Technologies Corporation Scrap bale for steel making process
WO2009004565A2 (en) * 2007-07-02 2009-01-08 Bumatech (Pty) Limited Flux and method of making same
DE102010027964A1 (de) * 2010-04-20 2011-10-20 Deere & Company Hydraulische Anordnung
US9322073B1 (en) 2013-03-14 2016-04-26 ALMAMET USA, Inc. Preparation of flux lime for a BOF converter including conversion of troublesome fines to high quality fluidized lime
EP3072853B1 (de) * 2015-03-24 2019-07-31 Real Alloy Germany GmbH Verfahren zur herstellung von aluminiumoxid-kalzinaten
US10132567B2 (en) 2015-05-14 2018-11-20 Larry J Epps Apparatus for slag removal during metal processing
WO2016205312A1 (en) 2015-06-17 2016-12-22 Epps Larry J Coaxial material-stirring lance and method for use
US10344343B2 (en) 2016-06-15 2019-07-09 Larry J Epps Multiple chamber material-stirring lance and method
CN113403451A (zh) * 2021-05-24 2021-09-17 鞍钢股份有限公司 一种无氟铁水脱硫用球形渣及制备方法
CN113388716B (zh) * 2021-05-24 2022-10-18 鞍钢股份有限公司 一种无氟复合型铁水脱硫剂及制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876421A (en) * 1972-11-09 1975-04-08 Nippon Steel Corp Process for desulfurization of molten pig iron
US4014684A (en) * 1973-11-27 1977-03-29 Foseco International Limited Manufacture of steel
US4142887A (en) * 1978-02-21 1979-03-06 Reactive Metals & Alloys Corporation Steel ladle desulfurization compositions and methods of steel desulfurization
JPS5585611A (en) * 1978-12-20 1980-06-27 Kawasaki Steel Corp Desulfurizing agent for hot iron at outside of furnace
JPS55110711A (en) * 1979-02-16 1980-08-26 Nippon Steel Corp Desulfurization of molten pig iron
GB2049736B (en) * 1979-04-19 1983-02-16 Foseco Int Desulphurisation of metals
US4266969A (en) * 1980-01-22 1981-05-12 Jones & Laughlin Steel Corporation Desulfurization process
BR8606249A (pt) * 1985-12-17 1987-09-29 Sueddeutsche Kalkstickstoff Composicao finamente granulada para a dessulfuracao de ferro fundido e processo para sua preparacao
US4708737A (en) * 1986-08-25 1987-11-24 The Dow Chemical Company Injectable reagents for molten metals
US5021086A (en) * 1990-07-05 1991-06-04 Reactive Metals And Alloys Corporation Iron desulfurization additive and method for introduction into hot metal
DE4128499C2 (de) * 1991-08-28 1994-11-24 Thyssen Stahl Ag Verfahren zur Behandlung von Roheisenschmelzen zu deren Entschwefelung
CA2054244C (en) * 1991-10-25 2000-08-01 Bruce James Barker Powdered desulfurizing reagent and process of use
US5397379A (en) * 1993-09-22 1995-03-14 Oglebay Norton Company Process and additive for the ladle refining of steel
DE19502302C2 (de) * 1995-01-26 1996-12-05 Deumu Deutsche Erz Und Metall Mittel zur Entschwefelung von Eisenschmelzen

Also Published As

Publication number Publication date
AU6885898A (en) 1998-10-30
WO1998045484A1 (en) 1998-10-15
EP0973951A1 (en) 2000-01-26
CA2286221A1 (en) 1998-10-15
CA2286221C (en) 2003-02-04
US5972072A (en) 1999-10-26
US5873924A (en) 1999-02-23

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law