JPS5458612A - Oxygen steel making process using iron manganese ore as mn source - Google Patents

Oxygen steel making process using iron manganese ore as mn source

Info

Publication number
JPS5458612A
JPS5458612A JP12559777A JP12559777A JPS5458612A JP S5458612 A JPS5458612 A JP S5458612A JP 12559777 A JP12559777 A JP 12559777A JP 12559777 A JP12559777 A JP 12559777A JP S5458612 A JPS5458612 A JP S5458612A
Authority
JP
Japan
Prior art keywords
source
ore
iron manganese
manganese ore
iron
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP12559777A
Other languages
Japanese (ja)
Other versions
JPS5625493B2 (en
Inventor
Yukiyoshi Ito
Shingo Sato
Hideo Tezuka
Yuji Kawachi
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP12559777A priority Critical patent/JPS5458612A/en
Publication of JPS5458612A publication Critical patent/JPS5458612A/en
Publication of JPS5625493B2 publication Critical patent/JPS5625493B2/ja
Granted legal-status Critical Current

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
    • C21C5/28—Manufacture of steel in the converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE:To increase the Mn content of metal at the time of blowing out without using expensive ferroalloy by adding iron manganese ore in refining under a small amt. of slag to reduce MnO in the ore to Mn in molten steel. CONSTITUTION:A first process for supplying gaseous O or a solid O source such as mill scale sintered ore to hot iron to desiliconize it and a second process for dephosphorizing and decarburizing the desiliconized iron are separately carried out. In the second process, iron manganese ore is added to reduce the Mn source in the ore to Mn in molten steel. Thus, effective refining using a cheap Mn source can be carried out without using expensive ferromanganese.
JP12559777A 1977-10-19 1977-10-19 Oxygen steel making process using iron manganese ore as mn source Granted JPS5458612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12559777A JPS5458612A (en) 1977-10-19 1977-10-19 Oxygen steel making process using iron manganese ore as mn source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12559777A JPS5458612A (en) 1977-10-19 1977-10-19 Oxygen steel making process using iron manganese ore as mn source

Publications (2)

Publication Number Publication Date
JPS5458612A true JPS5458612A (en) 1979-05-11
JPS5625493B2 JPS5625493B2 (en) 1981-06-12

Family

ID=14914074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12559777A Granted JPS5458612A (en) 1977-10-19 1977-10-19 Oxygen steel making process using iron manganese ore as mn source

Country Status (1)

Country Link
JP (1) JPS5458612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167463A (en) * 2008-01-16 2009-07-30 Jfe Steel Corp METHOD FOR PRODUCING Mn-CONTAINING EXTRA-LOW-CARBON STEEL
JP2009221561A (en) * 2008-03-18 2009-10-01 Jfe Steel Corp Method for refining high manganese extra-low carbon steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167463A (en) * 2008-01-16 2009-07-30 Jfe Steel Corp METHOD FOR PRODUCING Mn-CONTAINING EXTRA-LOW-CARBON STEEL
JP2009221561A (en) * 2008-03-18 2009-10-01 Jfe Steel Corp Method for refining high manganese extra-low carbon steel

Also Published As

Publication number Publication date
JPS5625493B2 (en) 1981-06-12

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