CA2927984C - Production d'alliages de chrome et de fer directement a partir de minerai de chromite - Google Patents

Production d'alliages de chrome et de fer directement a partir de minerai de chromite Download PDF

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Publication number
CA2927984C
CA2927984C CA2927984A CA2927984A CA2927984C CA 2927984 C CA2927984 C CA 2927984C CA 2927984 A CA2927984 A CA 2927984A CA 2927984 A CA2927984 A CA 2927984A CA 2927984 C CA2927984 C CA 2927984C
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Canada
Prior art keywords
accelerant
chromium
carbon
chromite
chromite ore
Prior art date
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Active
Application number
CA2927984A
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English (en)
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CA2927984A1 (fr
Inventor
Frank Winter
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.)
KWG RESOURCES Inc
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KWG RESOURCES Inc
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 KWG RESOURCES Inc filed Critical KWG RESOURCES Inc
Publication of CA2927984A1 publication Critical patent/CA2927984A1/fr
Application granted granted Critical
Publication of CA2927984C publication Critical patent/CA2927984C/fr
Active legal-status Critical Current
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention porte sur un procédé pour la production d'alliages de chrome et de fer appropriés pour l'élaboration d'acier directement à partir de minerai de chromite, consistant à agglomérer des fines de minerai de chromite comprenant des ajouts de fines de carbone et d'accélérateur et un liant, et à introduire les agglomérats secs dans un réacteur avec du gaz naturel utilisé comme agent réducteur à des températures élevées adéquates pour la réduction pour produire de cette manière un alliage de chrome et de fer approprié pour l'élaboration d'acier. L'accélérateur préféré est un alcali sous la forme d'un oxyde, hydroxyde ou carbonate, l'hydroxyde de sodium étant préféré.
CA2927984A 2013-10-21 2014-09-09 Production d'alliages de chrome et de fer directement a partir de minerai de chromite Active CA2927984C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361893400P 2013-10-21 2013-10-21
US61/893,400 2013-10-21
PCT/US2014/054644 WO2015060951A1 (fr) 2013-10-21 2014-09-09 Production d'alliages de chrome et de fer directement à partir de minerai de chromite

Publications (2)

Publication Number Publication Date
CA2927984A1 CA2927984A1 (fr) 2015-04-30
CA2927984C true CA2927984C (fr) 2018-03-27

Family

ID=52993349

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2927984A Active CA2927984C (fr) 2013-10-21 2014-09-09 Production d'alliages de chrome et de fer directement a partir de minerai de chromite

Country Status (6)

Country Link
US (1) US20160244864A1 (fr)
JP (2) JP2016539251A (fr)
KR (1) KR20160073994A (fr)
CN (1) CN105658828A (fr)
CA (1) CA2927984C (fr)
WO (1) WO2015060951A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA201992240A1 (ru) * 2017-03-21 2020-03-23 Ланксесс Дойчланд Гмбх Способ получения железо- и хромсодержащих частиц
CA3056280C (fr) 2017-05-02 2020-07-14 Dawei Yu Reduction carbothermique directe de chromite au moyen d'un catalyseur pour la production d'alliage de ferrochrome
US10358693B2 (en) 2017-10-20 2019-07-23 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Natural Resources Method of direct reduction of chromite with cryolite additive
EP3760748B1 (fr) * 2019-07-02 2023-09-20 Brother Group (Hong Kong) Limited Procédé de préparation de pastilles calcinées optimisées contenant du fer et du chrome
EP3763837A1 (fr) * 2019-07-09 2021-01-13 Brother Group (Hong Kong) Limited Agglomération de résidus de processus de minerai de chrome
BR102019023195B1 (pt) * 2019-11-05 2021-01-19 Vale S.A. processo de produção de aglomerado de finos de minério de ferroe o produto aglomerado
CN113444884B (zh) * 2021-05-17 2022-11-01 攀钢集团攀枝花钢铁研究院有限公司 一种微碳铬铁合金的制备方法
CN114855002B (zh) * 2021-07-06 2023-04-25 丰镇市华兴化工有限公司 一种低钛高碳铬铁及其生产方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990267A (en) * 1959-06-26 1961-06-27 Dow Chemical Co Preparation of metal powders
US3235371A (en) * 1962-09-10 1966-02-15 Control Of Michigan College Of Agglomerated mineral products and method of making same
US3661555A (en) * 1969-06-24 1972-05-09 Showa Denko Kk Pelletized chromium addition agents for ferro alloys production and method therefor
US3894865A (en) * 1970-07-10 1975-07-15 Wienert Fritz Otto Production of metallurgical pellets in rotary kilns
JPS5114969B1 (fr) * 1970-10-31 1976-05-13
US3997333A (en) * 1975-02-26 1976-12-14 Westinghouse Electric Corporation Process for the reduction of complex metallic ores
US4298581A (en) * 1980-04-15 1981-11-03 Cabot Corporation Process for recovering chromium, vanadium, molybdenum and tungsten values from a feed material
JPS58199834A (ja) * 1982-05-15 1983-11-21 Kawasaki Steel Corp クロム鉱石の予備還元法
DE3713883A1 (de) * 1987-04-25 1988-11-17 Metallgesellschaft Ag Verfahren zur herstellung von ferrochrom
CN1037917C (zh) * 1993-03-02 1998-04-01 锦州铁合金厂 粉铬矿还原性烧结造块冶炼铬铁合金工艺
US7315021B2 (en) * 2004-05-21 2008-01-01 Analytica Of Branford, Inc. Charged droplet spray probe
CN101638730B (zh) * 2008-07-31 2015-03-25 塔塔钢铁有限公司 用于从冶金级铬铁矿精矿细粉生产海绵铬的方法
CN101538630B (zh) * 2009-02-05 2011-04-06 丁家伟 用铬矿粉制备铬铁工艺及设备
CN103045854B (zh) * 2011-10-12 2015-11-25 中国中化股份有限公司 用于铬铁合金冶炼生产的铬粉矿的预处理方法
RU2650024C2 (ru) * 2013-03-06 2018-04-06 Мидрэкс Текнолоджиз, Инк. Способы и системы для восстановления хромсодержащего сырья

Also Published As

Publication number Publication date
CA2927984A1 (fr) 2015-04-30
WO2015060951A1 (fr) 2015-04-30
US20160244864A1 (en) 2016-08-25
JP2019131895A (ja) 2019-08-08
KR20160073994A (ko) 2016-06-27
CN105658828A (zh) 2016-06-08
JP2016539251A (ja) 2016-12-15

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