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DE3166581D1 - Method of dephosphorizing molten pig iron - Google Patents

Method of dephosphorizing molten pig iron

Info

Publication number
DE3166581D1
DE3166581D1 DE8181302859T DE3166581T DE3166581D1 DE 3166581 D1 DE3166581 D1 DE 3166581D1 DE 8181302859 T DE8181302859 T DE 8181302859T DE 3166581 T DE3166581 T DE 3166581T DE 3166581 D1 DE3166581 D1 DE 3166581D1
Authority
DE
Germany
Prior art keywords
pig iron
molten pig
dephosphorizing molten
dephosphorizing
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.)
Expired
Application number
DE8181302859T
Other languages
German (de)
Inventor
Hitoshi Morishita
Hajime Bada
Fumio Sudo
Shuji Takeuchi
Toshihiko Emi
Tsutomu Nozaki
Rinzo Tachibana
Sumio Yamada
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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
Priority claimed from JP8808180A external-priority patent/JPS5713110A/en
Priority claimed from JP2083081A external-priority patent/JPS57137408A/en
Priority claimed from JP7472081A external-priority patent/JPS57192210A/en
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Application granted granted Critical
Publication of DE3166581D1 publication Critical patent/DE3166581D1/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
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
DE8181302859T 1980-06-28 1981-06-25 Method of dephosphorizing molten pig iron Expired DE3166581D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8808180A JPS5713110A (en) 1980-06-28 1980-06-28 Dephosphorization treatment of molten iron
JP2083081A JPS57137408A (en) 1981-02-17 1981-02-17 Dephosphorization treatment of molten iron
JP7472081A JPS57192210A (en) 1981-05-18 1981-05-18 Dephosphorization of low-silicon pig iron

Publications (1)

Publication Number Publication Date
DE3166581D1 true DE3166581D1 (en) 1984-11-15

Family

ID=27283182

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181302859T Expired DE3166581D1 (en) 1980-06-28 1981-06-25 Method of dephosphorizing molten pig iron

Country Status (3)

Country Link
EP (1) EP0043238B1 (en)
AU (1) AU529793B2 (en)
DE (1) DE3166581D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297611A (en) * 1988-09-30 1990-04-10 Nippon Steel Corp Method for melting cold iron source
CN1046139C (en) * 1997-10-08 1999-11-03 冶金工业部钢铁研究总院 Pre-dephosporizing method for molten iron
JP3940280B2 (en) * 2001-09-27 2007-07-04 新日本製鐵株式会社 How to remove hot metal
CN103725825A (en) * 2014-01-24 2014-04-16 安徽工业大学 Aluminum industrial red mud-based dephosphorizing agent for converter steelmaking and preparation method thereof
CN109852762A (en) * 2019-04-01 2019-06-07 山东钢铁集团日照有限公司 A kind of compound top and bottom combined blown converter bottom spray lime stone smelting process
CN113355487A (en) * 2021-06-07 2021-09-07 张准 Magnesium-free mineral phase reconstruction agent, preparation method thereof and converter steelmaking slagging method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR986779A (en) * 1949-03-18 1951-08-06 Commentry Fourchambault Et Dec Cast iron dephosphorization process and cast iron obtained
FR1062328A (en) * 1951-08-30 1954-04-21 Process for the dephosphorization of metals, for example cast iron and inserts for carrying out this process
DE1275078B (en) * 1958-11-03 1968-08-14 Mannesmann Ag Method for producing low-phosphorus steel from phosphorus-containing pig iron, in particular Thomas pig iron
GB1043228A (en) * 1963-02-07 1966-09-21 Stora Kopparbergs Bergslags Ab Process for the manufacture of low phosphorous pig iron
DE1433649A1 (en) * 1964-03-03 1969-05-14 Thyssen Huette Ag Process for the dephosphorization of pig iron, in particular Thomas pig iron
LU62943A1 (en) * 1971-04-07 1973-05-16
FR2146969A1 (en) * 1971-07-29 1973-03-09 Creusot Loire Feeding pulverulent, materials to a melt - in a converter using double coaxial tuyeres
US4065297A (en) * 1976-09-28 1977-12-27 Sumitomo Metal Industries Limited Process for dephosphorizing molten pig iron

Also Published As

Publication number Publication date
AU529793B2 (en) 1983-06-23
EP0043238B1 (en) 1984-10-10
EP0043238A1 (en) 1982-01-06
AU7234581A (en) 1982-04-01

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee