EP2718476A4 - Method for improving the reduction degree in the smelting of ferroalloy - Google Patents

Method for improving the reduction degree in the smelting of ferroalloy

Info

Publication number
EP2718476A4
EP2718476A4 EP12799733.6A EP12799733A EP2718476A4 EP 2718476 A4 EP2718476 A4 EP 2718476A4 EP 12799733 A EP12799733 A EP 12799733A EP 2718476 A4 EP2718476 A4 EP 2718476A4
Authority
EP
European Patent Office
Prior art keywords
ferroalloy
smelting
improving
reduction degree
reduction
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12799733.6A
Other languages
German (de)
French (fr)
Other versions
EP2718476A1 (en
Inventor
Tuomo Mäkelä
Pekka Niemelä
Helge Krogerus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Outokumpu Oyj
Metso Outotec Oyj
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Publication of EP2718476A1 publication Critical patent/EP2718476A1/en
Publication of EP2718476A4 publication Critical patent/EP2718476A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C21C5/005—Manufacture of stainless steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • 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
    • C21C7/0006—Adding metallic additives
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/06—Alloys based on chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP12799733.6A 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy Withdrawn EP2718476A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20110200A FI123241B (en) 2011-06-13 2011-06-13 Process for improving the degree of reduction in melting of a ferro-mixture
PCT/FI2012/050580 WO2012172168A1 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy

Publications (2)

Publication Number Publication Date
EP2718476A1 EP2718476A1 (en) 2014-04-16
EP2718476A4 true EP2718476A4 (en) 2014-11-05

Family

ID=44206736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12799733.6A Withdrawn EP2718476A4 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy

Country Status (20)

Country Link
US (1) US20140116202A1 (en)
EP (1) EP2718476A4 (en)
JP (1) JP6148230B2 (en)
KR (2) KR20140012754A (en)
CN (1) CN103732774A (en)
AP (1) AP3866A (en)
AT (1) AT513441B1 (en)
AU (1) AU2012270290B2 (en)
BR (1) BR112013031991A8 (en)
CA (1) CA2843210A1 (en)
DE (1) DE112012002439T5 (en)
FI (1) FI123241B (en)
MX (1) MX2013014524A (en)
NO (1) NO347489B1 (en)
RU (1) RU2600788C2 (en)
SE (1) SE538994C2 (en)
TW (1) TWI612147B (en)
UA (1) UA115863C2 (en)
WO (1) WO2012172168A1 (en)
ZA (1) ZA201309401B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5977251B2 (en) 2010-12-03 2016-08-24 インターデイジタル パテント ホールディングス インコーポレイテッド Method, apparatus and system for performing multi-radio access technology carrier aggregation
KR101902559B1 (en) 2011-07-29 2018-10-01 인터디지탈 패튼 홀딩스, 인크 Method and apparatus for radio resources management in multi-radio access technology wireless systems
FI126718B (en) * 2013-12-17 2017-04-28 Outotec Finland Oy Process for utilizing dust from a ferro-nickel process and sintered pellets prepared by the process
CN105506271B (en) * 2014-09-24 2018-05-08 宝钢不锈钢有限公司 Chrome ore composite pellet and its production method and application are used in a kind of argon oxygen decarburizing furnace reduction
BR112019000146A2 (en) * 2016-07-11 2019-04-24 Outotec Finland Oy process for manufacturing desired manganese, nickel and molybdenum ferrochrome alloy
EP3481969B1 (en) * 2016-07-11 2020-05-13 Outotec (Finland) Oy Process for manufacturing chromium and iron bearing agglomerates with different addition of manganese, nickel and molybdenum bearing materials
FI128814B (en) * 2016-12-30 2020-12-31 Outotec Finland Oy Method for producing nickel containing indurated chromite pellets, method for producing ferrochrome nickel alloy and indurated chromite pellet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0846778A1 (en) * 1996-12-04 1998-06-10 Armco Inc. Melting of nickel laterite and sulfur-bearing Ni concentrate in making Ni-alloyed iron and stainless steel
CN1847440A (en) * 2006-04-25 2006-10-18 吴江市东大铸造有限公司 Ni-Cr-Fe alloy and its production process
WO2010092234A1 (en) * 2009-02-11 2010-08-19 Outokumpu Oyj Method for producing ferroalloy containing nickel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759085A (en) * 1953-06-05 1956-10-10 Chromium Mining & Smelting Cor Improvements in or relating to ferroalloying materials and process of preparing the same
US3525604A (en) * 1966-10-21 1970-08-25 Edward M Van Dornick Process for refining pelletized metalliferous materials
JPS5335892B2 (en) * 1972-05-29 1978-09-29
ZW9893A1 (en) * 1992-08-11 1993-09-15 Mintek The production of stainless steel
WO1997020954A1 (en) * 1995-12-06 1997-06-12 Wmc Resources Ltd. Simplified duplex processing of nickel ores and/or concentrates for the production of ferronickels, nickel irons and stainless steels
RU2190034C2 (en) * 2000-06-26 2002-09-27 Региональное Уральское отделение Академии инженерных наук Российской Федерации Method of smelting alloys from oxide-containing materials
CN1306049C (en) * 2005-09-16 2007-03-21 刘沈杰 Ferronickel smelting process of nickel oxide ore free of crystal water in blast furnace
RU2406767C1 (en) * 2009-04-08 2010-12-20 Александр Валерьевич Кольба Procedure for metal-thermal metal and alloy melting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0846778A1 (en) * 1996-12-04 1998-06-10 Armco Inc. Melting of nickel laterite and sulfur-bearing Ni concentrate in making Ni-alloyed iron and stainless steel
CN1847440A (en) * 2006-04-25 2006-10-18 吴江市东大铸造有限公司 Ni-Cr-Fe alloy and its production process
WO2010092234A1 (en) * 2009-02-11 2010-08-19 Outokumpu Oyj Method for producing ferroalloy containing nickel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012172168A1 *

Also Published As

Publication number Publication date
JP2014523966A (en) 2014-09-18
NO20140016A1 (en) 2014-01-08
TWI612147B (en) 2018-01-21
SE538994C2 (en) 2017-03-14
TW201303037A (en) 2013-01-16
CA2843210A1 (en) 2012-12-20
US20140116202A1 (en) 2014-05-01
ZA201309401B (en) 2015-04-29
WO2012172168A1 (en) 2012-12-20
AP3866A (en) 2016-10-31
CN103732774A (en) 2014-04-16
RU2013154744A (en) 2015-07-20
EP2718476A1 (en) 2014-04-16
KR20160087397A (en) 2016-07-21
FI20110200A0 (en) 2011-06-13
UA115863C2 (en) 2018-01-10
FI123241B (en) 2013-01-15
AU2012270290A1 (en) 2014-01-09
RU2600788C2 (en) 2016-10-27
NO347489B1 (en) 2023-11-20
KR20140012754A (en) 2014-02-03
SE1351487A1 (en) 2014-03-04
DE112012002439T5 (en) 2014-04-03
BR112013031991A8 (en) 2018-04-03
JP6148230B2 (en) 2017-06-14
AP2013007314A0 (en) 2013-12-31
BR112013031991A2 (en) 2016-12-20
FI20110200L (en) 2012-12-14
AT513441A3 (en) 2020-03-15
AT513441A2 (en) 2014-04-15
MX2013014524A (en) 2014-02-19
AT513441B1 (en) 2020-03-15
AU2012270290B2 (en) 2017-02-02

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Effective date: 20141007

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: KROGERUS, HELGE

Inventor name: NIEMELAE, PEKKA

Inventor name: MAEKELAE, TUOMO

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OUTOKUMPU, OYJ

Owner name: OUTOTEC OYJ

RAP1 Party data changed (applicant data changed or rights of an application transferred)

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Owner name: OUTOKUMPU OYJ

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