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MX2009008472A - Procedimiento para la reduccion de escoria con alto contenido en cromo en un horno de arco. - Google Patents

Procedimiento para la reduccion de escoria con alto contenido en cromo en un horno de arco.

Info

Publication number
MX2009008472A
MX2009008472A MX2009008472A MX2009008472A MX2009008472A MX 2009008472 A MX2009008472 A MX 2009008472A MX 2009008472 A MX2009008472 A MX 2009008472A MX 2009008472 A MX2009008472 A MX 2009008472A MX 2009008472 A MX2009008472 A MX 2009008472A
Authority
MX
Mexico
Prior art keywords
slag
electric arc
arc furnace
chromium
carbon
Prior art date
Application number
MX2009008472A
Other languages
English (en)
Inventor
Johann Reichel
Lutz Rose
Original Assignee
Sms Siemag Ag
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 Sms Siemag Ag filed Critical Sms Siemag Ag
Publication of MX2009008472A publication Critical patent/MX2009008472A/es

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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • 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
    • 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
    • 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
    • C21C5/54—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
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet
    • 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
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • 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)
  • Analytical Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

En la fabricación de acero inoxidable, durante la fundición del material sólido en el horno de arco, se forma escoria que contiene un alto porcentaje de óxidos metálicos, especialmente de óxido de cromo. La concentración de óxido de cromo muchas veces alcanza valores superiores al 30%. Debido a su composición, las escorias de ese tipo hasta ahora no pueden ser reducidas en la medida deseada. Para minimizar la elevada pérdida de sustancias de valor condicionada por esta limitación, conforme a la presente invención, se propone cargar pellets o briquetas (8) en el horno de arco, la cuales se componen de una mezcla definida por un portador de hierro, como material de lastre, por carbono o carbono y silicio, como agente reductor, así como por un material aglutinante, dónde flotando en la fundición de hierro (6) reaccionan químicamente de manera reductora debajo de la capa de escoria (7) con los óxidos metálicos de la escoria (7), especialmente con el óxido de cromo contenido. Los gases de reacción (12) que se generan, compuestos principalmente de monóxido de carbono, soportan de manera ventajosa un espumado de la escoria (7).
MX2009008472A 2007-02-09 2008-01-10 Procedimiento para la reduccion de escoria con alto contenido en cromo en un horno de arco. MX2009008472A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710006529 DE102007006529A1 (de) 2007-02-09 2007-02-09 Verfahren und Reduktion einer hochchromhaltigen Schlacke in einem Elektrolichtbogenofen
PCT/EP2008/000138 WO2008095575A1 (de) 2007-02-09 2008-01-10 Verfahren zur reduktion einer hochchromhaltigen schlacke in einem elektrolichtbogenofen

Publications (1)

Publication Number Publication Date
MX2009008472A true MX2009008472A (es) 2009-08-20

Family

ID=39332092

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009008472A MX2009008472A (es) 2007-02-09 2008-01-10 Procedimiento para la reduccion de escoria con alto contenido en cromo en un horno de arco.

Country Status (15)

Country Link
US (1) US8043401B2 (es)
EP (1) EP2129807B1 (es)
JP (1) JP5094879B2 (es)
KR (1) KR101174703B1 (es)
CN (1) CN101631879B (es)
AU (1) AU2008213424B2 (es)
BR (1) BRPI0807112B1 (es)
CA (1) CA2677674C (es)
DE (1) DE102007006529A1 (es)
ES (1) ES2391126T3 (es)
MX (1) MX2009008472A (es)
RU (1) RU2418864C1 (es)
UA (1) UA93145C2 (es)
WO (1) WO2008095575A1 (es)
ZA (1) ZA200904770B (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028011A1 (de) * 2008-06-09 2009-12-10 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung einer Schaumschlacke auf austenitischen Rostfreischmelzen in einem Elektrolichtbogenofen
DE102008032975A1 (de) * 2008-07-07 2010-01-14 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung von Schaumschlacke
DE102009020494A1 (de) * 2009-05-08 2010-11-11 Sms Siemag Ag Verfahren zum Schlackeschäumen einer Nichtrostfrei-Stahlschmelze in einem Elektrolichtbogenofen
DE102010004983A1 (de) * 2010-01-19 2011-07-21 SMS Siemag Aktiengesellschaft, 40237 Verfahren zur Schaumschlackenerzeugung einer Rostfreischmelze in einem Konverter
DE102010022692A1 (de) 2010-03-17 2011-09-22 Sms Siemag Ag Brikett zur Erzeugung eines Schaumschlacke-Effekts bei der EAF-Technologie der Edelstahlherstellung
CN103121802B (zh) * 2011-11-18 2014-11-05 中国科学院过程工程研究所 一种利用亚熔盐工艺产出铬渣制备氯氧镁水泥的方法
KR101435282B1 (ko) * 2012-01-31 2014-09-01 현대제철 주식회사 슬래그 환원 방법
KR101275827B1 (ko) * 2012-09-10 2013-06-18 한국지질자원연구원 용융슬래그에 함유된 유가금속의 환원 방법 및 환원장치
KR101412416B1 (ko) * 2012-09-27 2014-06-26 현대제철 주식회사 슬래그 환원 방법
CN104726636A (zh) * 2015-03-30 2015-06-24 山西太钢不锈钢股份有限公司 一种电炉冶炼不锈钢发泡剂及其发泡方法
JP6620781B2 (ja) * 2017-05-15 2019-12-18 Ｊｆｅスチール株式会社 ダストの溶融還元方法及び再利用方法
CN107419056A (zh) * 2017-07-28 2017-12-01 攀钢集团研究院有限公司 不锈钢电炉发泡剂及其使用方法
CN113667794A (zh) * 2021-07-07 2021-11-19 阳春新钢铁有限责任公司 一种使用自循环渣球团造前期渣方法
WO2023096525A1 (ru) * 2021-11-28 2023-06-01 Татьяна Михайловна ПАРПОЛИТО Печь для производства феррохромовых сплавов
CN115043608B (zh) * 2022-06-29 2023-06-09 江苏万邦新材料科技有限公司 一种建筑混凝土用减缩型减水剂及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115912A (ja) * 1984-06-29 1986-01-24 Sanyo Tokushu Seikou Kk ステンレス鋼精錬におけるスラグ還元方法
JPS62158812A (ja) * 1985-12-28 1987-07-14 Nippon Kokan Kk <Nkk> 冶金用加炭材の製造方法
EP0655508B1 (en) 1993-11-30 1998-08-19 ACCIAI SPECIALI TERNI S.p.a. Process for using foamed slag in stainless steel production in the electric arc furnace
FR2753205B1 (fr) * 1996-09-12 1998-12-04 Usinor Sacilor Procede pour realiser un laitier moussant au-dessus d'un acier inoxydable en fusion dans un four electrique
CA2241574C (en) * 1997-08-01 2004-01-06 Exothermic Distribution Corporation Composite briquette for electric furnace charge
SE512757C2 (sv) * 1998-09-03 2000-05-08 Uddeholm Technology Ab Tillsats av dopingmedel vid tillverkning av stål i ljusbågsugn, dopingmedlet samt användning av detta
CA2402860C (en) * 2000-03-17 2005-12-06 Specialty Minerals (Michigan) Inc. Process and apparatus for automatically controlling slag foaming
JP4267190B2 (ja) * 2000-09-14 2009-05-27 新日本製鐵株式会社 フライアッシュ及び鉄分含有廃棄物の有効活用方法
JP3746978B2 (ja) * 2000-10-11 2006-02-22 光洋精工株式会社 製鋼原料用ブリケットの製造方法
RU2222616C1 (ru) * 2002-05-06 2004-01-27 Открытое акционерное общество "Северсталь" Способ производства габаритного лома
DE10323505A1 (de) * 2003-05-24 2004-12-09 Sms Demag Ag Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen
US20070051200A1 (en) * 2005-09-08 2007-03-08 Pierre Vayda Composite briquettes for electric furnace charge, and in their method of use
DE102006004532B4 (de) * 2006-02-01 2014-10-09 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung einer Schaumschlacke in einer metallischen Schmelze

Also Published As

Publication number Publication date
CN101631879A (zh) 2010-01-20
ZA200904770B (en) 2010-03-31
AU2008213424A1 (en) 2008-08-14
RU2009133799A (ru) 2011-03-20
AU2008213424B2 (en) 2010-10-14
EP2129807A1 (de) 2009-12-09
JP5094879B2 (ja) 2012-12-12
DE102007006529A1 (de) 2008-08-14
CN101631879B (zh) 2015-01-28
US8043401B2 (en) 2011-10-25
JP2010518256A (ja) 2010-05-27
US20100089202A1 (en) 2010-04-15
RU2418864C1 (ru) 2011-05-20
CA2677674A1 (en) 2008-07-14
KR20090091232A (ko) 2009-08-26
WO2008095575A1 (de) 2008-08-14
UA93145C2 (uk) 2011-01-10
BRPI0807112B1 (pt) 2016-09-06
EP2129807B1 (de) 2012-09-12
KR101174703B1 (ko) 2012-08-16
ES2391126T3 (es) 2012-11-21
CA2677674C (en) 2011-10-11
BRPI0807112A2 (pt) 2014-08-12

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