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FI20110200A0 - A process for improving the degree of reduction upon melting of ferro-alloy - Google Patents

A process for improving the degree of reduction upon melting of ferro-alloy

Info

Publication number
FI20110200A0
FI20110200A0 FI20110200A FI20110200A FI20110200A0 FI 20110200 A0 FI20110200 A0 FI 20110200A0 FI 20110200 A FI20110200 A FI 20110200A FI 20110200 A FI20110200 A FI 20110200A FI 20110200 A0 FI20110200 A0 FI 20110200A0
Authority
FI
Finland
Prior art keywords
improving
degree
ferro
melting
alloy
Prior art date
Application number
FI20110200A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20110200L (en
FI123241B (en
Inventor
Tuomo Maekelae
Pekka Niemelae
Original Assignee
Outokumpu Oy
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 Oy filed Critical Outokumpu Oy
Publication of FI20110200A0 publication Critical patent/FI20110200A0/en
Priority to FI20110200A priority Critical patent/FI123241B/en
Priority to CN201280029431.XA priority patent/CN103732774A/en
Priority to BR112013031991A priority patent/BR112013031991A8/en
Priority to RU2013154744/02A priority patent/RU2600788C2/en
Priority to DE112012002439.7T priority patent/DE112012002439T5/en
Priority to UAA201400170A priority patent/UA115863C2/en
Priority to PH1/2013/502558A priority patent/PH12013502558A1/en
Priority to JP2014515237A priority patent/JP6148230B2/en
Priority to EP12799733.6A priority patent/EP2718476A4/en
Priority to KR1020137033113A priority patent/KR20140012754A/en
Priority to MX2013014524A priority patent/MX2013014524A/en
Priority to AP2013007314A priority patent/AP3866A/en
Priority to US14/125,657 priority patent/US20140116202A1/en
Priority to ATA9268/2012A priority patent/AT513441B1/en
Priority to KR1020167018517A priority patent/KR20160087397A/en
Priority to SE1351487A priority patent/SE538994C2/en
Priority to PCT/FI2012/050580 priority patent/WO2012172168A1/en
Priority to AU2012270290A priority patent/AU2012270290B2/en
Priority to NO20140016A priority patent/NO347489B1/en
Priority to CA2843210A priority patent/CA2843210A1/en
Priority to TW101121078A priority patent/TWI612147B/en
Publication of FI20110200L publication Critical patent/FI20110200L/en
Application granted granted Critical
Publication of FI123241B publication Critical patent/FI123241B/en
Priority to ZA2013/09401A priority patent/ZA201309401B/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
    • 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
    • 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
    • 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)

Abstract

The invention relates to a method for improving the reduction degree of metal components in a chromite concentrate when smelting ferroalloy suitable for manufacturing of stainless steel. The chromite concentrate is fed together with nickel-containing raw material so that by means the amount of nickel-containing raw material it is achieved a desired reduction degree for the metal components of ferroalloy.
FI20110200A 2011-06-13 2011-06-13 Process for improving the degree of reduction in melting of a ferro-mixture FI123241B (en)

Priority Applications (22)

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
MX2013014524A MX2013014524A (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy.
US14/125,657 US20140116202A1 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
RU2013154744/02A RU2600788C2 (en) 2011-06-13 2012-06-08 Method for improving reduction degree in smelting of ferroalloy
DE112012002439.7T DE112012002439T5 (en) 2011-06-13 2012-06-08 Process for improving the degree of reduction in the melting of ferroalloys
UAA201400170A UA115863C2 (en) 2011-06-13 2012-06-08 METHOD OF OBTAINING Ferroalloys
PH1/2013/502558A PH12013502558A1 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
JP2014515237A JP6148230B2 (en) 2011-06-13 2012-06-08 Method of improving the degree of reduction in smelting of alloyed iron
EP12799733.6A EP2718476A4 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
KR1020137033113A KR20140012754A (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
CN201280029431.XA CN103732774A (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
AP2013007314A AP3866A (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
BR112013031991A BR112013031991A8 (en) 2011-06-13 2012-06-08 METHOD TO IMPROVE THE DEGREE OF REDUCTION IN FERRO-ALLOY FOUNDINGS
ATA9268/2012A AT513441B1 (en) 2011-06-13 2012-06-08 Process for improving the degree of reduction when melting ferroalloy
KR1020167018517A KR20160087397A (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
SE1351487A SE538994C2 (en) 2011-06-13 2012-06-08 Process for controlling the rate of reduction in the preparation of a ferro alloy
PCT/FI2012/050580 WO2012172168A1 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
AU2012270290A AU2012270290B2 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
NO20140016A NO347489B1 (en) 2011-06-13 2012-06-08 Method for improving the degree of reduction in melting of ferroalloys
CA2843210A CA2843210A1 (en) 2011-06-13 2012-06-08 Method for improving the reduction degree in the smelting of ferroalloy
TW101121078A TWI612147B (en) 2011-06-13 2012-06-13 Method for increasing reduction degree when smelting iron alloy
ZA2013/09401A ZA201309401B (en) 2011-06-13 2013-12-12 Method for improving the reduction degree in the smelting of ferroalloy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20110200 2011-06-13
FI20110200A FI123241B (en) 2011-06-13 2011-06-13 Process for improving the degree of reduction in melting of a ferro-mixture

Publications (3)

Publication Number Publication Date
FI20110200A0 true FI20110200A0 (en) 2011-06-13
FI20110200L FI20110200L (en) 2012-12-14
FI123241B FI123241B (en) 2013-01-15

Family

ID=44206736

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20110200A FI123241B (en) 2011-06-13 2011-06-13 Process for improving the degree of reduction in melting of a ferro-mixture

Country Status (21)

Country Link
US (1) US20140116202A1 (en)
EP (1) EP2718476A4 (en)
JP (1) JP6148230B2 (en)
KR (2) KR20160087397A (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)
PH (1) PH12013502558A1 (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
EP2647259B1 (en) 2010-12-03 2018-01-03 Interdigital Patent Holdings, Inc. Methods and apparatus for performing multi-radio access technology carrier aggregation
KR102013540B1 (en) 2011-07-29 2019-08-22 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
EP3497249A1 (en) * 2016-07-11 2019-06-19 Outotec (Finland) Oy Process for manufacturing ferrochromium alloy with desired content of manganese, nickel and molybdenum
CN109477158A (en) * 2016-07-11 2019-03-15 奥图泰(芬兰)公司 Method for making chromium and iron containing agglomerates with different additions of manganese, nickel and molybdenum containing materials
FI128814B (en) * 2016-12-30 2020-12-31 Outotec Finland Oy METHOD FOR THE PRODUCTION OF HARDENED CHROMITE PELLETS CONTAINING NICKEL, METHOD FOR THE PRODUCTION OF FERROCHROMINIC NICKEL ALLOY AND HARDENED CHROMITE PELLET

Family Cites Families (11)

* 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
US5749939A (en) * 1996-12-04 1998-05-12 Armco Inc. Melting of NI laterite in making NI alloyed iron or steel
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
CN1847440A (en) * 2006-04-25 2006-10-18 吴江市东大铸造有限公司 Nickel-chromium-iron alloy and production method thereof
FI127721B (en) * 2009-02-11 2019-01-15 Outokumpu Oy Process for preparing a ferro alloy containing nickel
RU2406767C1 (en) * 2009-04-08 2010-12-20 Александр Валерьевич Кольба Procedure for metal-thermal metal and alloy melting

Also Published As

Publication number Publication date
AT513441A2 (en) 2014-04-15
AP2013007314A0 (en) 2013-12-31
KR20160087397A (en) 2016-07-21
UA115863C2 (en) 2018-01-10
MX2013014524A (en) 2014-02-19
EP2718476A4 (en) 2014-11-05
BR112013031991A2 (en) 2016-12-20
FI20110200L (en) 2012-12-14
RU2600788C2 (en) 2016-10-27
AU2012270290A1 (en) 2014-01-09
TWI612147B (en) 2018-01-21
US20140116202A1 (en) 2014-05-01
AP3866A (en) 2016-10-31
CN103732774A (en) 2014-04-16
SE538994C2 (en) 2017-03-14
BR112013031991A8 (en) 2018-04-03
CA2843210A1 (en) 2012-12-20
KR20140012754A (en) 2014-02-03
AT513441B1 (en) 2020-03-15
JP6148230B2 (en) 2017-06-14
PH12013502558A1 (en) 2020-12-18
ZA201309401B (en) 2015-04-29
NO20140016A1 (en) 2014-01-08
SE1351487A1 (en) 2014-03-04
NO347489B1 (en) 2023-11-20
EP2718476A1 (en) 2014-04-16
JP2014523966A (en) 2014-09-18
WO2012172168A1 (en) 2012-12-20
TW201303037A (en) 2013-01-16
RU2013154744A (en) 2015-07-20
AT513441A3 (en) 2020-03-15
AU2012270290B2 (en) 2017-02-02
DE112012002439T5 (en) 2014-04-03
FI123241B (en) 2013-01-15

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