MY146471A - Method for producing foamed slag on high-chromium steel melts in an electric arc furnace - Google Patents

Method for producing foamed slag on high-chromium steel melts in an electric arc furnace

Info

Publication number
MY146471A
MY146471A MYPI20041932A MYPI20041932A MY146471A MY 146471 A MY146471 A MY 146471A MY PI20041932 A MYPI20041932 A MY PI20041932A MY PI20041932 A MYPI20041932 A MY PI20041932A MY 146471 A MY146471 A MY 146471A
Authority
MY
Malaysia
Prior art keywords
slag
carbon
metal oxide
steel melts
electric arc
Prior art date
Application number
MYPI20041932A
Inventor
Lutz Rose
Johann Dr Reichel
Original Assignee
Sms Demag 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 Demag Ag filed Critical Sms Demag Ag
Publication of MY146471A publication Critical patent/MY146471A/en

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
    • 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
    • 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
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • 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
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • 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

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)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

IN THE CASE OF A PROCESS FOR THE PRODUCTION OF FOAMED SLAG (7) ON HIGH CHROMIUM CONTENT STEEL MELTS (6) IN AN ELECTRIC FURNACE (1) IN WHICH A MIXTURE OF A METAL OXIDE AND CARBON IS INTRODUCED INTO THE FURNACE (1), THE METAL OXIDE IN THE SLAG (7) IS REDUCED BY THE CARBON AND THE GASES FORMED FORM BUBBLES IN THE SLAG (7) AND THESE CONSEQUENTLY FOAM THE SLAG (7), THE GAS DEVELOPMENT AND CONSEQUENTLY THE FOAMING PROCESS SHOULD BE CONTROLLABLE. IN THIS RESPECT, IT IS PROPOSED THAT THE MIXTURE OF METAL OXIDE AND CARBON AND, IF NECESSARY, AN IRON CARRIER BE INTRODUCED AS MOULDED PARTS, SUCH AS PELLETS, WHICH ARE COMPRESSED AND/OR PROVIDED WITH A BINDER. BY ADJUSTING THE PROPERTIES, IN PARTICULAR THE DENSITY AND/OR COMPRESSION PROPERTIES OF THE PELLETS, THE GAS DEVELOPMENT BECOMES CONTROLLABLE WITH RESPECT TO THE LOCATION, TYPE AND TIME.
MYPI20041932A 2003-05-24 2004-05-20 Method for producing foamed slag on high-chromium steel melts in an electric arc furnace MY146471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10323505A DE10323505A1 (en) 2003-05-24 2003-05-24 Process for producing a foam slag on high-chromium melts in an electric furnace

Publications (1)

Publication Number Publication Date
MY146471A true MY146471A (en) 2012-08-15

Family

ID=33441236

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20041932A MY146471A (en) 2003-05-24 2004-05-20 Method for producing foamed slag on high-chromium steel melts in an electric arc furnace

Country Status (13)

Country Link
US (2) US20060260435A1 (en)
EP (1) EP1629126B1 (en)
JP (1) JP4701331B2 (en)
KR (1) KR101174691B1 (en)
CN (2) CN102061356A (en)
CA (1) CA2519728C (en)
DE (1) DE10323505A1 (en)
MY (1) MY146471A (en)
RU (1) RU2343208C2 (en)
TW (1) TWI295690B (en)
UA (1) UA84151C2 (en)
WO (1) WO2004104232A1 (en)
ZA (1) ZA200505659B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004532B4 (en) * 2006-02-01 2014-10-09 Sms Siemag Aktiengesellschaft Process for producing a foamed slag in a metallic melt
DE102007006529A1 (en) * 2007-02-09 2008-08-14 Sms Demag Ag Process and reduction of a chromium-containing slag in an electric arc furnace
DE102007050478A1 (en) 2007-10-23 2009-04-30 Sms Demag Ag Process for stainless steel production with direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter
DE102008028011A1 (en) * 2008-06-09 2009-12-10 Sms Siemag Aktiengesellschaft Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace
DE102008032975A1 (en) * 2008-07-07 2010-01-14 Sms Siemag Aktiengesellschaft Process for producing foamed slag
DE102009020494A1 (en) * 2009-05-08 2010-11-11 Sms Siemag Ag A method of slag foaming a non-stainless steel melt in an electric arc furnace
DE102009043639A1 (en) 2009-09-29 2011-03-31 Sms Siemag Aktiengesellschaft Method and apparatus for controlling the production of a foamed slag in a metallic melt
DE102010004983A1 (en) 2010-01-19 2011-07-21 SMS Siemag Aktiengesellschaft, 40237 Process for the production of foam slag of a stainless melt in a converter
DE102010022692A1 (en) 2010-03-17 2011-09-22 Sms Siemag Ag Briquette for producing a foamed slag effect in stainless steel EAF technology
KR101229899B1 (en) * 2010-12-22 2013-02-05 주식회사 포스코 Material for promoting slag forming
KR101499200B1 (en) * 2013-06-27 2015-03-05 현대제철 주식회사 Furnace
SI3034633T1 (en) * 2014-12-17 2017-06-30 Refractory Intellectual Property Gmbh & Co. Kg Mixture, use of this mixture as well as method for conditioning a slag on molten metal from the processing of iron and steel in a metallurgical vessel
CN104726636A (en) * 2015-03-30 2015-06-24 山西太钢不锈钢股份有限公司 Foaming agent for smelting stainless steel employing electric furnace and foaming method for foaming agent
JP6620781B2 (en) * 2017-05-15 2019-12-18 Ｊｆｅスチール株式会社 Dust smelting reduction method and reuse method
CN114317885B (en) * 2022-01-11 2022-11-22 安徽工业大学 Biomass electric furnace foaming agent and preparation method and application method thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807986A (en) * 1971-06-09 1974-04-30 Lukens Steel Co Combination iron and iron oxide briquette and method of using
US3843767A (en) * 1972-03-27 1974-10-22 Du Pont Process for treating fluophosphate ores
US3925060A (en) * 1974-09-23 1975-12-09 Timken Co Compact containing iron oxide and carbon and method for its use in steelmaking
JPH04131314A (en) * 1990-09-21 1992-05-06 Nippon Stainless Steel Co Ltd Method for recovering valuable metal from byproduct at the time of manufacturing stainless steel
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 (en) * 1996-09-12 1998-12-04 Usinor Sacilor PROCESS FOR PRODUCING A FOAMING SLAG OVER A STAINLESS STEEL MELTING IN AN ELECTRIC OVEN
JPH11302712A (en) * 1998-04-16 1999-11-02 Tetsugen Corp Reduction dissolution refining method for iron oxide
SE512757C2 (en) 1998-09-03 2000-05-08 Uddeholm Technology Ab Addition of doping agents in the manufacture of steel in arc furnaces, doping agents and their use
US6214085B1 (en) * 1999-02-01 2001-04-10 Calderon Energy Company Of Bowling Green, Inc. Method for direct steelmaking
LU90409B1 (en) * 1999-06-25 2001-01-02 Wurth Paul Sa Proc-d- for optimizing the operation of an electric furnace of the - submerged arc- type
LU90481B1 (en) 1999-12-01 2001-06-05 Wurth Paul Sa Post-treatment process for metallurgical slag

Also Published As

Publication number Publication date
CA2519728C (en) 2011-06-14
CN102061356A (en) 2011-05-18
US20130000446A1 (en) 2013-01-03
WO2004104232A1 (en) 2004-12-02
WO2004104232A8 (en) 2006-03-02
KR101174691B1 (en) 2012-08-17
US20060260435A1 (en) 2006-11-23
CA2519728A1 (en) 2004-12-02
JP2007501900A (en) 2007-02-01
KR20060004700A (en) 2006-01-12
JP4701331B2 (en) 2011-06-15
DE10323505A1 (en) 2004-12-09
TW200427844A (en) 2004-12-16
RU2005140564A (en) 2006-05-10
TWI295690B (en) 2008-04-11
EP1629126A1 (en) 2006-03-01
ZA200505659B (en) 2006-08-30
CN1795277A (en) 2006-06-28
EP1629126B1 (en) 2013-03-13
UA84151C2 (en) 2008-09-25
RU2343208C2 (en) 2009-01-10

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