BR112014029214B1 - Processo para aperfeiçoamento da redutibilidade de pelotas de minério de ferro - Google Patents

Processo para aperfeiçoamento da redutibilidade de pelotas de minério de ferro Download PDF

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Publication number
BR112014029214B1
BR112014029214B1 BR112014029214-0A BR112014029214A BR112014029214B1 BR 112014029214 B1 BR112014029214 B1 BR 112014029214B1 BR 112014029214 A BR112014029214 A BR 112014029214A BR 112014029214 B1 BR112014029214 B1 BR 112014029214B1
Authority
BR
Brazil
Prior art keywords
mixture
pellets
iron ore
reducibility
add
Prior art date
Application number
BR112014029214-0A
Other languages
English (en)
Portuguese (pt)
Other versions
BR112014029214A2 (pt
Inventor
Marcus Eduardo Emrich Botelho
Stephen Michael POTTER
Paulo Freitas NOGUEIRA
Original Assignee
Vale S.A.
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 Vale S.A. filed Critical Vale S.A.
Publication of BR112014029214A2 publication Critical patent/BR112014029214A2/pt
Publication of BR112014029214B1 publication Critical patent/BR112014029214B1/pt

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Classifications

    • 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
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Sludge (AREA)
BR112014029214-0A 2012-05-23 2013-05-17 Processo para aperfeiçoamento da redutibilidade de pelotas de minério de ferro BR112014029214B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261650905P 2012-05-23 2012-05-23
US61/650,905 2012-05-23
PCT/BR2013/000175 WO2013173895A1 (en) 2012-05-23 2013-05-17 Process for the improvement of reducibility of iron ore pellets

Publications (2)

Publication Number Publication Date
BR112014029214A2 BR112014029214A2 (pt) 2017-12-12
BR112014029214B1 true BR112014029214B1 (pt) 2020-02-18

Family

ID=48613382

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014029214-0A BR112014029214B1 (pt) 2012-05-23 2013-05-17 Processo para aperfeiçoamento da redutibilidade de pelotas de minério de ferro

Country Status (10)

Country Link
US (1) US9169532B2 (https=)
EP (1) EP2852694B1 (https=)
JP (1) JP2015518922A (https=)
KR (1) KR102063369B1 (https=)
AR (1) AR091127A1 (https=)
AU (1) AU2013266036B2 (https=)
BR (1) BR112014029214B1 (https=)
IN (1) IN2014DN10331A (https=)
TW (1) TW201402830A (https=)
WO (1) WO2013173895A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5880790B2 (ja) * 2013-07-29 2016-03-09 新日鐵住金株式会社 直接還元用原料、直接還元用原料の製造方法、及び還元鉄の製造方法
US20160376681A1 (en) * 2015-06-26 2016-12-29 Vale S.A. Process to thermally upgrade metal-containing limonite or saprolite ores via magnetic separation and the use of the magnetic concentrate as seeds
BR102015027270A2 (pt) * 2015-10-27 2017-05-02 Vale S/A processo para redução da umidade de minérios em correias transportadoras e chutes de transferência; chute de transferência para transporte de minério; correia transportadora para transporte de minério
CN109371232B (zh) * 2018-11-28 2020-03-27 山西太钢不锈钢股份有限公司 用于降低球团矿膨胀率的方法
CN113025812B (zh) * 2021-02-26 2023-05-12 安徽工业大学 一种球团及其制备方法及一种铁水
CN115074523B (zh) * 2022-05-05 2024-04-30 包头钢铁（集团）有限责任公司 一种测定铁矿球团在高炉冶炼过程中抗碱金属破坏能力的方法
CN116987880B (zh) * 2023-08-10 2025-10-31 北京科技大学 一种在含ch4的还原气氛条件下铬铁矿球团进行低温还原焙烧预处理方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753682A (en) * 1970-09-18 1973-08-21 Allis Chalmers Mfg Co Ported rotary kiln process for direct reduction of oxides of metallic minerals
FR2366364A1 (fr) * 1976-02-03 1978-04-28 Cefilac Procede de fabrication de produits en acier par voie solide
US4350523A (en) * 1979-04-12 1982-09-21 Kabushiki Kaisha Kobe Seiko Sho Porous iron ore pellets
NL8204940A (nl) * 1982-12-22 1984-07-16 Shell Int Research Werkwijze ter bereiding van een ferronikkelconcentraat.
US5738694A (en) * 1994-01-21 1998-04-14 Covol Technologies, Inc. Process for recovering iron from iron-containing material
PL323625A1 (en) * 1995-06-06 1998-04-14 Covol Technologies Method of recovering iron from materials of high iron content
JP4418836B2 (ja) * 2007-12-20 2010-02-24 株式会社神戸製鋼所 高炉用自溶性ペレットおよびその製造方法
US9540707B2 (en) * 2011-11-25 2017-01-10 Ab Ferrolegeringar Iron and molybdenum containing agglomerates

Also Published As

Publication number Publication date
US20140096650A1 (en) 2014-04-10
JP2015518922A (ja) 2015-07-06
AU2013266036A1 (en) 2014-12-18
BR112014029214A2 (pt) 2017-12-12
EP2852694B1 (en) 2017-10-25
AU2013266036B2 (en) 2017-02-09
TW201402830A (zh) 2014-01-16
KR102063369B1 (ko) 2020-01-07
WO2013173895A1 (en) 2013-11-28
IN2014DN10331A (https=) 2015-08-07
EP2852694A1 (en) 2015-04-01
AR091127A1 (es) 2015-01-14
US9169532B2 (en) 2015-10-27
KR20150013890A (ko) 2015-02-05

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Legal Events

Date Code Title Description
B25M Limitations in changing the proprietorship

Owner name: VALE S.A. (BR/RJ)

Free format text: ANOTACAO DE LIMITACAO OU ONUSREFERENCIA: PROCESSO SINPI/SEI 52402.005510/2018-81 FICA ANOTADA A INDISPONIBILIDADE DO REFERIDO PEDIDO DE PATENTE, DE ACORDO COM O ART. 59,II, DA LPI, CONFORME DETERMINADO PELO MM. JUIZ FEDERAL DA 27A VARA FEDERAL. CONFORME A MESMADETERMINACAO NAO SERA POSSIVEL A TRANSFERENCIA DESTE, SALVO A AUTORIZACAO DESSE JUIZO.

B25M Limitations in changing the proprietorship

Owner name: VALE S.A. (BR/RJ)

Free format text: ANOTACAO DE LIMITACAO OU ONUSREFERENCIA: PROCESSO SINPI/SEI 52402.005792/2018-17 CONFORME DETERMINADO PELA MMA. JUIZA FEDERAL MARIA ADNA FAGUNDES VELOSO DA 15A VARA NA TITULARIDADE DA 27A VARA FEDERAL, FICA ANOTADO CANCELAMENTO PROVISORIO DA INDISPONIBILIDADE PUBLICADA NA RPI 2491 DE 02/10/2018, DE ACORDO COM O ART. 59, II, DA LPI.

B06F Objections, documents and/or translations needed after an examination request according art. 34 industrial property law
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/05/2013, OBSERVADAS AS CONDICOES LEGAIS.