BRPI0410420A - processo para a utilização de escória - Google Patents

processo para a utilização de escória

Info

Publication number
BRPI0410420A
BRPI0410420A BRPI0410420A BRPI0410420A BR PI0410420 A BRPI0410420 A BR PI0410420A BR PI0410420 A BRPI0410420 A BR PI0410420A BR PI0410420 A BRPI0410420 A BR PI0410420A
Authority
BR
Brazil
Prior art keywords
slag
iron
forming material
over
time
Prior art date
Application number
Other languages
English (en)
Inventor
Alexander Fleischanderl
Udo Gennari
Original Assignee
Voest Alpine Ind Anlagen
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 Voest Alpine Ind Anlagen filed Critical Voest Alpine Ind Anlagen
Publication of BRPI0410420A publication Critical patent/BRPI0410420A/pt
Publication of BRPI0410420B1 publication Critical patent/BRPI0410420B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • 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
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Manufacture Of Iron (AREA)

Abstract

"PROCESSO PARA A UTILIZAçãO DE ESCóRIA". A presente invenção refere-se a um processo para a utilização de escória (2,2<39><39>) proveniente da indústria de ferros ornamentais e contendo partículas de ferro óxido, a adição de um agente redutor (29) e a redução das partículas do ferro óxido da escória (2,2<39><39>), bem como de outros óxidos de metal que opcionalmente são providos é efetuada por meio do dito agente redutor (29). De modo a atingir uma redução de escória eficiente envolvendo um pequeno gasto de energia e baixos investimentos, o processo é realizado como segue: - carregamento da escória (2,2<39><39>) em um recipiente do reator (7) sobre um material de formada de ferro residual (25) contendo carbono dissolvido, vagarosa e continuamente sobre um período de tempo prolongado, - aquecimento elétrico da escória (2) e do material de formada de ferro residual bem como de um material de formada de ferro recentemente formado (17) através de um período prolongado de tempo, - injeção de um agente redutor contendo carbono (29) com gás inerte, através de um período de tempo prolongado por meio de uma lança (11) em uma região próxima da superfície limite (26) entre a escória (2) e o material de formada de ferro (25) ou diretamente dentro do material de formada de ferro (25), - dissolução do carbono do agente redutor (29) no material de formada de ferro (25) e - redução das partículas de ferro óxido da escória (2), com ferro metálico e CO sendo formados, através de um período prolongado de tempo, - formação de uma escória espumosa (2<39>) pelo CO resultante através de um período de tempo prolongado, - introdução de um gás contendo oxigênio ou oxigênio na escória espumosa (2<39>) e pós-combustão de CO para CO~ 2~ através de um período de tempo prolongado, - jato inferior do recipiente do reator (7) com gás inerte através de um período de tempo prolongado, - descarga da escória tratada (16) e opcionalmente - subseqüentemente a descarga do material de formada de ferro (17), por meio disso um material de formada de ferro (25) residual contendo carbono dissolvido é deixado no recipiente do reator (7).
BRPI0410420-0B1A 2003-05-16 2004-05-10 Processo para a utilização de escória BRPI0410420B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0075303A AT412283B (de) 2003-05-16 2003-05-16 Verfahren zum verwerten von schlacke
ATA753/2003 2003-05-16
PCT/AT2004/000161 WO2004101828A1 (de) 2003-05-16 2004-05-10 Verfahren zum verwerten von schlacke

Publications (2)

Publication Number Publication Date
BRPI0410420A true BRPI0410420A (pt) 2006-05-30
BRPI0410420B1 BRPI0410420B1 (pt) 2014-04-22

Family

ID=32234890

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0410420-0B1A BRPI0410420B1 (pt) 2003-05-16 2004-05-10 Processo para a utilização de escória

Country Status (11)

Country Link
US (1) US7597736B2 (pt)
EP (1) EP1627084B1 (pt)
JP (1) JP2006528732A (pt)
KR (1) KR101140056B1 (pt)
CN (1) CN100398667C (pt)
AT (1) AT412283B (pt)
AU (1) AU2004238885B2 (pt)
BR (1) BRPI0410420B1 (pt)
CA (1) CA2525926A1 (pt)
ES (1) ES2763388T3 (pt)
WO (1) WO2004101828A1 (pt)

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CN101713008B (zh) * 2008-10-08 2012-07-18 中钢集团鞍山热能研究院有限公司 一种熔融还原镍渣提铁的方法及装置
US7914602B1 (en) 2009-12-02 2011-03-29 Carbide Industries, LLC Process to reduce steel furnace slag carry-over during tapping
WO2011081267A1 (ko) * 2009-12-30 2011-07-07 현대제철 주식회사 슬래그의 유가금속 회수 및 다기능성 골재의 제조 방법 및 그 장치
KR101159619B1 (ko) 2010-03-31 2012-06-27 현대제철 주식회사 실리콘 첨가강 제조 방법 및 이 제조방법으로 생성된 실리콘 첨가강
US8662374B2 (en) 2010-12-16 2014-03-04 Air Liquide Industrial U.S. Lp Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone
EP2767597B1 (en) * 2012-06-27 2016-11-02 Nippon Steel & Sumitomo Metal Corporation Method of reduction processing of steel-making slag
DE102012211714A1 (de) * 2012-07-05 2014-05-22 Siemens Vai Metals Technologies Gmbh Verfahren und Vorrichtung zur Detektion des Schlackepegels in einem metallurgischen Gefäß
JP5970354B2 (ja) * 2012-11-27 2016-08-17 新日鉄住金エンジニアリング株式会社 溶融スラグの還元処理装置
AU2013204818B2 (en) * 2013-04-12 2015-02-19 Metso Metals Oy Molten bath temperature measurement for a top submerged lance injection installation
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JP6221707B2 (ja) * 2013-12-06 2017-11-01 新日鐵住金株式会社 スラグ処理方法およびスラグ処理装置
JP6446970B2 (ja) * 2014-10-06 2019-01-09 新日鐵住金株式会社 傾動式スラグ供給装置のスラグ付着抑制方法
CN104498811B (zh) * 2014-12-11 2016-08-17 南京梅山冶金发展有限公司 一种铸铁浆水
DE102016200372A1 (de) * 2016-01-14 2017-07-20 Thyssenkrupp Ag Verfahren zur Nutzbarmachung einer Stahlwerksschlacke, Schlackenschaum sowie Verwendung eines Schlackenschaums
BR112019010786B1 (pt) 2016-12-16 2023-02-07 Nippon Steel Corporation Forno elétrico
CN106755665A (zh) * 2017-02-20 2017-05-31 中冶赛迪上海工程技术有限公司 一种利用高温熔渣处理垃圾焚烧飞灰的装置及方法
DE102017105551A1 (de) * 2017-03-15 2018-09-20 Scholz Austria GmbH Verfahren zur Behandlung metallurgischer Schlacken
DE102017119675B4 (de) 2017-08-28 2019-07-04 Voestalpine Stahl Gmbh Verfahren zur Behandlung von Schlacke
CN107641717A (zh) * 2017-10-10 2018-01-30 东北大学 一种由含铜熔渣生产的方法
CN109022645B (zh) * 2018-08-08 2020-10-16 钢研晟华科技股份有限公司 一种钢渣改性及综合利用系统和方法
CN109341340B (zh) * 2018-09-30 2024-03-01 河南高创信息科技有限公司 一种金属熔炼炉
WO2020217890A1 (ja) * 2019-04-22 2020-10-29 日本製鉄株式会社 含クロム溶鉄の製造方法
CN111650329A (zh) * 2020-06-17 2020-09-11 攀钢集团攀枝花钢铁研究院有限公司 含Ti高炉渣高温碳化冶炼终点的判定方法
DE102021204258A1 (de) 2021-04-28 2022-11-03 Thyssenkrupp Ag Schmelzofen zur Erzeugung von Roheisen und Schlacke mit einer gewünschten Beschaffenheit
CN114231694B (zh) * 2021-10-27 2023-02-03 江苏沙钢集团有限公司 一种利用钢渣热闷余热加热废钢的装置和方法
DE102022118640A1 (de) * 2022-07-26 2024-02-01 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung einer Eisenschmelze in einem elektrischen Einschmelzer
CN115927778B (zh) * 2022-12-06 2025-06-13 浙江奕鼎新材料有限公司 一种熔融还原铁短流程炼钢设备及工艺
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Also Published As

Publication number Publication date
KR20060009941A (ko) 2006-02-01
EP1627084A1 (de) 2006-02-22
CN100398667C (zh) 2008-07-02
JP2006528732A (ja) 2006-12-21
ES2763388T3 (es) 2020-05-28
CA2525926A1 (en) 2004-11-25
EP1627084B1 (de) 2019-10-09
AU2004238885B2 (en) 2009-10-29
WO2004101828A1 (de) 2004-11-25
KR101140056B1 (ko) 2012-05-02
CN1791685A (zh) 2006-06-21
US7597736B2 (en) 2009-10-06
US20060065071A1 (en) 2006-03-30
AU2004238885A1 (en) 2004-11-25
BRPI0410420B1 (pt) 2014-04-22
ATA7532003A (de) 2004-05-15
AT412283B (de) 2004-12-27

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Legal Events

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/05/2004, OBSERVADAS AS CONDICOES LEGAIS.

B25F Entry of change of name and/or headquarter and transfer of application, patent and certif. of addition of invention: change of name on requirement
B25K Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B25E Requested change of name of applicant rejected
B25D Requested change of name of applicant approved
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)
B25B Requested transfer of rights rejected

Free format text: INDEFERIDO O PEDIDO DE TRANSFERENCIA CONTIDO NA PETICAO 870170029612 DE 04/05/2017, EM VIRTUDE DA PUBLICACAO DA MANUTENCAO DA EXTINCAO (24.10) FEITA NA RPI2477 DE 26/06/2018.