BR112013031991A8 - METHOD TO IMPROVE THE DEGREE OF REDUCTION IN FERRO-ALLOY FOUNDINGS - Google Patents

METHOD TO IMPROVE THE DEGREE OF REDUCTION IN FERRO-ALLOY FOUNDINGS

Info

Publication number
BR112013031991A8
BR112013031991A8 BR112013031991A BR112013031991A BR112013031991A8 BR 112013031991 A8 BR112013031991 A8 BR 112013031991A8 BR 112013031991 A BR112013031991 A BR 112013031991A BR 112013031991 A BR112013031991 A BR 112013031991A BR 112013031991 A8 BR112013031991 A8 BR 112013031991A8
Authority
BR
Brazil
Prior art keywords
reduction
degree
ferro
alloy
foundings
Prior art date
Application number
BR112013031991A
Other languages
Portuguese (pt)
Other versions
BR112013031991A2 (en
Inventor
Tuomo Mäkelä
Pekka Niemelä
Original Assignee
Outotec Oyj
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 Outotec Oyj, Outokumpu Oy filed Critical Outotec Oyj
Publication of BR112013031991A2 publication Critical patent/BR112013031991A2/en
Publication of BR112013031991A8 publication Critical patent/BR112013031991A8/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

MÉTODO PARA MELHORAR A GRAU DE REDUÇÃO NA FUNDIÇÃO DE FERRO-LIGAS A invenção se refere a um método para melhorar o grau de redução de componentes metálicos em um concentrado de cromíta, quando da fundição de ferro-liga apropriada para a fabricação de aço inoxidável. O concentrado de cromita é alimentado juntamente com a matéria-prima que contém níquel, de modo que, por meio da quantidade de matéria-prima que contém níquel, pode-se atingir um grau de redução desejado para os componentes metálicos de ferroligas.METHOD FOR IMPROVING THE DEGREE OF REDUCTION IN FERRO-ALLOY CASTING The invention relates to a method for improving the degree of reduction of metallic components in a chromite concentrate, when casting ferroalloys suitable for the manufacture of stainless steel. The chromite concentrate is fed together with the nickel-containing raw material, so that, by means of the amount of nickel-containing raw material, a desired degree of reduction can be achieved for the metallic components of ferroalloys.

BR112013031991A 2011-06-13 2012-06-08 METHOD TO IMPROVE THE DEGREE OF REDUCTION IN FERRO-ALLOY FOUNDINGS BR112013031991A8 (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
BR112013031991A2 BR112013031991A2 (en) 2016-12-20
BR112013031991A8 true BR112013031991A8 (en) 2018-04-03

Family

ID=44206736

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013031991A BR112013031991A8 (en) 2011-06-13 2012-06-08 METHOD TO IMPROVE THE DEGREE OF REDUCTION IN FERRO-ALLOY FOUNDINGS

Country Status (20)

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)
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
KR20130143098A (en) 2010-12-03 2013-12-30 인터디지탈 패튼 홀딩스, 인크 Methods, apparatus and systems for performing multi-radio access technology carrier aggregation
EP3813474A1 (en) 2011-07-29 2021-04-28 Interdigital Patent Holdings, Inc. 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
EA201990103A1 (en) * 2016-07-11 2019-06-28 Оутотек (Финлэнд) Ой METHOD OF MAKING A FERROCHROMIC ALLOY WITH THE DESIRABLE CONTENT OF MANGANESE, NICKEL AND MOLIBDEN
BR112019000149B1 (en) * 2016-07-11 2023-02-23 Outotec (Finland) Oy PROCESS FOR MANUFACTURING AGGLOMERATES CONTAINING CHROME AND IRON WITH DIFFERENT ADDITION OF MATERIALS CONTAINING MANGANESE, NICKEL AND MOLYBDENUM
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

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
ZA935789B (en) * 1992-08-11 1994-03-03 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 Method for producing 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
AT513441B1 (en) 2020-03-15
AP3866A (en) 2016-10-31
EP2718476A1 (en) 2014-04-16
AP2013007314A0 (en) 2013-12-31
RU2013154744A (en) 2015-07-20
AT513441A2 (en) 2014-04-15
KR20140012754A (en) 2014-02-03
AU2012270290B2 (en) 2017-02-02
CA2843210A1 (en) 2012-12-20
EP2718476A4 (en) 2014-11-05
AU2012270290A1 (en) 2014-01-09
ZA201309401B (en) 2015-04-29
JP2014523966A (en) 2014-09-18
TWI612147B (en) 2018-01-21
KR20160087397A (en) 2016-07-21
BR112013031991A2 (en) 2016-12-20
AT513441A3 (en) 2020-03-15
UA115863C2 (en) 2018-01-10
RU2600788C2 (en) 2016-10-27
JP6148230B2 (en) 2017-06-14
SE538994C2 (en) 2017-03-14
WO2012172168A1 (en) 2012-12-20
FI123241B (en) 2013-01-15
TW201303037A (en) 2013-01-16
NO20140016A1 (en) 2014-01-08
DE112012002439T5 (en) 2014-04-03
CN103732774A (en) 2014-04-16
SE1351487A1 (en) 2014-03-04
US20140116202A1 (en) 2014-05-01
FI20110200A0 (en) 2011-06-13
FI20110200L (en) 2012-12-14
MX2013014524A (en) 2014-02-19
NO347489B1 (en) 2023-11-20

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: OUTOTEC OYJ (FI) , OUTOKUMPU OYJ (FI)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL