BR112023002390A2 - IRON ORE PELLETS AND IRON ORE PELLET PRODUCTION METHOD - Google Patents

IRON ORE PELLETS AND IRON ORE PELLET PRODUCTION METHOD

Info

Publication number
BR112023002390A2
BR112023002390A2 BR112023002390A BR112023002390A BR112023002390A2 BR 112023002390 A2 BR112023002390 A2 BR 112023002390A2 BR 112023002390 A BR112023002390 A BR 112023002390A BR 112023002390 A BR112023002390 A BR 112023002390A BR 112023002390 A2 BR112023002390 A2 BR 112023002390A2
Authority
BR
Brazil
Prior art keywords
iron ore
ore pellets
pellets
production method
pellet production
Prior art date
Application number
BR112023002390A
Other languages
Portuguese (pt)
Inventor
TOYOTA Hitoshi
KATO Tsugunori
TADAI Rikizo
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=80490938&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112023002390(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of BR112023002390A2 publication Critical patent/BR112023002390A2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • 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
    • 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
    • C22B1/216—Sintering; Agglomerating in rotary furnaces

Landscapes

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

Abstract

PELOTAS DE MINÉRIO DE FERRO E MÉTODO DE PRODUÇÃO DE PELOTAS DE MINÉRIO DE FERRO. A presente invenção refere-se a pelotas de minério de ferro que têm a característica de permitir uma maior redução no consumo de coque, em uma operação de alto-forno. As pelotas de minério de ferro de acordo com um aspecto da presente invenção são uso em uma operação de alto-forno, em que uma porosidade das pelotas de minério de ferro que resulta de grandes poros abertos com tamanho de poro maior ou igual a 4 µm é maior ou igual a 21%, e as pelotas de minério de ferro têm uma resistência à trituração maior ou igual a 180 kg/P.IRON ORE PELLETS AND METHOD OF PRODUCTION OF IRON ORE PELLETS. The present invention refers to iron ore pellets that have the characteristic of allowing a greater reduction in coke consumption in a blast furnace operation. The iron ore pellets according to one aspect of the present invention are for use in a blast furnace operation, where a porosity of the iron ore pellets that results from large open pores with a pore size greater than or equal to 4 µm is greater than or equal to 21%, and the iron ore pellets have a crushing strength greater than or equal to 180 kg/P.

BR112023002390A 2020-09-03 2020-09-29 IRON ORE PELLETS AND IRON ORE PELLET PRODUCTION METHOD BR112023002390A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020148362A JP7374870B2 (en) 2020-09-03 2020-09-03 iron ore pellets
PCT/JP2020/036959 WO2022049781A1 (en) 2020-09-03 2020-09-29 Iron ore pellets and manufacturing method of iron ore pellets

Publications (1)

Publication Number Publication Date
BR112023002390A2 true BR112023002390A2 (en) 2023-03-21

Family

ID=80490938

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023002390A BR112023002390A2 (en) 2020-09-03 2020-09-29 IRON ORE PELLETS AND IRON ORE PELLET PRODUCTION METHOD

Country Status (7)

Country Link
JP (1) JP7374870B2 (en)
CN (1) CN115989329A (en)
BR (1) BR112023002390A2 (en)
CA (1) CA3191576A1 (en)
CL (1) CL2023000628A1 (en)
SE (1) SE2350133A1 (en)
WO (1) WO2022049781A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024028922A1 (en) * 2022-08-01 2024-02-08 Ｊｆｅスチール株式会社 Non-fired pellets for reduction, and method for manufacturing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154534A (en) * 1979-04-12 1980-12-02 Kobe Steel Ltd Iron ore porous pellet and its manufacture
JPS56119742A (en) * 1980-02-25 1981-09-19 Kobe Steel Ltd Manufacture of iron ore pellet
JP4125928B2 (en) 2002-08-21 2008-07-30 新日本製鐵株式会社 Granulator for iron making and method for producing the same
CN105441670A (en) 2015-11-25 2016-03-30 北京首钢国际工程技术有限公司 Technology for producing high-proportion hematite pellets through chain-loop-ring system

Also Published As

Publication number Publication date
CN115989329A (en) 2023-04-18
CA3191576A1 (en) 2022-03-10
WO2022049781A1 (en) 2022-03-10
JP2022042777A (en) 2022-03-15
SE2350133A1 (en) 2023-02-13
JP7374870B2 (en) 2023-11-07
CL2023000628A1 (en) 2023-09-15

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