JPS52105515A - Dephosphorization of molten pig iron - Google Patents

Dephosphorization of molten pig iron

Info

Publication number
JPS52105515A
JPS52105515A JP2279076A JP2279076A JPS52105515A JP S52105515 A JPS52105515 A JP S52105515A JP 2279076 A JP2279076 A JP 2279076A JP 2279076 A JP2279076 A JP 2279076A JP S52105515 A JPS52105515 A JP S52105515A
Authority
JP
Japan
Prior art keywords
pig iron
dephosphorization
molten pig
vessel
reaction
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
JP2279076A
Other languages
Japanese (ja)
Other versions
JPS5910974B2 (en
Inventor
Yukiyoshi Ito
Tadaharu Okajima
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 JP2279076A priority Critical patent/JPS5910974B2/en
Publication of JPS52105515A publication Critical patent/JPS52105515A/en
Publication of JPS5910974B2 publication Critical patent/JPS5910974B2/en
Expired 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To dephosphorize the molten pig iron, by slagging off after the desiliconizing reaction and using the basic dephosphorizing agent to which oxides or carbonates of alkali metals have been added, when the pig iron in the reaction vessel such as converter, etc. is stirred by the gas from the bottom of the vessel and refined by oxygen blowing with the upper lance.
JP2279076A 1976-03-03 1976-03-03 Method for dephosphorizing hot metal Expired JPS5910974B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2279076A JPS5910974B2 (en) 1976-03-03 1976-03-03 Method for dephosphorizing hot metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2279076A JPS5910974B2 (en) 1976-03-03 1976-03-03 Method for dephosphorizing hot metal

Publications (2)

Publication Number Publication Date
JPS52105515A true JPS52105515A (en) 1977-09-05
JPS5910974B2 JPS5910974B2 (en) 1984-03-13

Family

ID=12092465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2279076A Expired JPS5910974B2 (en) 1976-03-03 1976-03-03 Method for dephosphorizing hot metal

Country Status (1)

Country Link
JP (1) JPS5910974B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460336A1 (en) * 1979-06-29 1981-01-23 Nisshin Steel Co Ltd METHOD FOR DEPHOSPHORIZATION AND DENITRATION OF CHROMIUM-CONTAINING CAST IRON
JPS5623212A (en) * 1979-08-03 1981-03-05 Nippon Steel Corp Dephosphorizing and desulfurizing method of low silicon molten iron
JPS56130416A (en) * 1980-03-19 1981-10-13 Nippon Steel Corp Steel making method
FR2485567A1 (en) * 1980-06-27 1981-12-31 Nisshin Steel Co Ltd Denitrifying slag for molten ferrous alloy contg. chromium - contains alkali metal carbonate, oxide, and/or hydroxide, together with fluoride and/or chloride, and iron and/or nickel oxide
JPS5884913A (en) * 1981-11-13 1983-05-21 Sumitomo Metal Ind Ltd Refining agent for treatment of molten iron

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460336A1 (en) * 1979-06-29 1981-01-23 Nisshin Steel Co Ltd METHOD FOR DEPHOSPHORIZATION AND DENITRATION OF CHROMIUM-CONTAINING CAST IRON
JPS5623212A (en) * 1979-08-03 1981-03-05 Nippon Steel Corp Dephosphorizing and desulfurizing method of low silicon molten iron
JPS5811485B2 (en) * 1979-08-03 1983-03-03 新日本製鐵株式会社 Dephosphorization and desulfurization method for low-silicon hot metal
JPS56130416A (en) * 1980-03-19 1981-10-13 Nippon Steel Corp Steel making method
JPS625964B2 (en) * 1980-03-19 1987-02-07 Nippon Steel Corp
FR2485567A1 (en) * 1980-06-27 1981-12-31 Nisshin Steel Co Ltd Denitrifying slag for molten ferrous alloy contg. chromium - contains alkali metal carbonate, oxide, and/or hydroxide, together with fluoride and/or chloride, and iron and/or nickel oxide
JPS5884913A (en) * 1981-11-13 1983-05-21 Sumitomo Metal Ind Ltd Refining agent for treatment of molten iron
JPS61881B2 (en) * 1981-11-13 1986-01-11 Sumitomo Metal Ind

Also Published As

Publication number Publication date
JPS5910974B2 (en) 1984-03-13

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