BR112023018032A2 - IRON ORE PELLET PRODUCTION METHOD - Google Patents

IRON ORE PELLET PRODUCTION METHOD

Info

Publication number
BR112023018032A2
BR112023018032A2 BR112023018032A BR112023018032A BR112023018032A2 BR 112023018032 A2 BR112023018032 A2 BR 112023018032A2 BR 112023018032 A BR112023018032 A BR 112023018032A BR 112023018032 A BR112023018032 A BR 112023018032A BR 112023018032 A2 BR112023018032 A2 BR 112023018032A2
Authority
BR
Brazil
Prior art keywords
iron ore
production method
pellets
pellet production
ore pellet
Prior art date
Application number
BR112023018032A
Other languages
Portuguese (pt)
Inventor
Hitoshi TOYOTA
Rikizo Tadai
Tsugunori Kato
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of BR112023018032A2 publication Critical patent/BR112023018032A2/en

Links

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
    • C22B1/242—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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • 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
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • 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
    • C22B1/216—Sintering; Agglomerating in rotary 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
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

método de produção de pelotas de minério de ferro. de acordo com um aspecto da presente invenção, um método de produção de pelotas de minério de ferro utilizadas para operar um alto-forno e em que uma razão de massa de cao/sio2 é superior a ou igual a 0,8 e uma razão de massa de mgo/sio2 é superior a ou igual a 0,4, inclui: a formação de pelotas cruas pela adição, a um material de minério de ferro e dolomita, de água para uso na formação; e uma etapa de queima das pelotas cruas, em que a dolomita possui uma característica de estar presente em um estado miniaturizado em uma estrutura das pelotas cruas.method of producing iron ore pellets. According to one aspect of the present invention, a method of producing iron ore pellets used to operate a blast furnace and wherein a mass ratio of cao/sio2 is greater than or equal to 0.8 and a ratio of mgo/sio2 mass is greater than or equal to 0.4, includes: the formation of raw pellets by adding, to an iron ore and dolomite material, water for use in the formation; and a stage of burning the raw pellets, in which the dolomite has the characteristic of being present in a miniaturized state in a structure of the raw pellets.

BR112023018032A 2021-04-01 2021-05-13 IRON ORE PELLET PRODUCTION METHOD BR112023018032A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021062578A JP2022158000A (en) 2021-04-01 2021-04-01 Manufacturing method of iron ore pellet
PCT/JP2021/018288 WO2022208904A1 (en) 2021-04-01 2021-05-13 Iron ore pellet production method

Publications (1)

Publication Number Publication Date
BR112023018032A2 true BR112023018032A2 (en) 2023-10-24

Family

ID=83457608

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023018032A BR112023018032A2 (en) 2021-04-01 2021-05-13 IRON ORE PELLET PRODUCTION METHOD

Country Status (10)

Country Link
US (1) US20240158886A1 (en)
EP (1) EP4303329A1 (en)
JP (1) JP2022158000A (en)
CN (1) CN116981785A (en)
AU (1) AU2021439033A1 (en)
BR (1) BR112023018032A2 (en)
CA (1) CA3214315A1 (en)
CL (1) CL2023002936A1 (en)
SE (1) SE2351219A1 (en)
WO (1) WO2022208904A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5354200A (en) * 1976-10-28 1978-05-17 Sumitomo Cement Co Process for producing high class calcium carbonate
US4260412A (en) * 1980-01-16 1981-04-07 Midrex Corporation Method of producing direct reduced iron with fluid bed coal gasification
JPS63153228A (en) * 1986-12-15 1988-06-25 Nkk Corp Method for coating green pellet for agglomerate with coke breeze
JPH01136936A (en) 1987-11-20 1989-05-30 Kobe Steel Ltd Manufacture of self-fluxing pellet for charging to blast furnace
US20040221426A1 (en) * 1997-10-30 2004-11-11 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method of producing iron oxide pellets
JP4418836B2 (en) * 2007-12-20 2010-02-24 株式会社神戸製鋼所 Self-fluxing pellets for blast furnace and manufacturing method thereof

Also Published As

Publication number Publication date
WO2022208904A1 (en) 2022-10-06
SE2351219A1 (en) 2023-10-25
CL2023002936A1 (en) 2024-03-15
AU2021439033A1 (en) 2023-10-19
US20240158886A1 (en) 2024-05-16
JP2022158000A (en) 2022-10-14
EP4303329A1 (en) 2024-01-10
CA3214315A1 (en) 2022-10-06
CN116981785A (en) 2023-10-31

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