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FR2391280A2 - Procede de dephosphoration de la fonte liquide - Google Patents

Procede de dephosphoration de la fonte liquide

Info

Publication number
FR2391280A2
FR2391280A2 FR7715062A FR7715062A FR2391280A2 FR 2391280 A2 FR2391280 A2 FR 2391280A2 FR 7715062 A FR7715062 A FR 7715062A FR 7715062 A FR7715062 A FR 7715062A FR 2391280 A2 FR2391280 A2 FR 2391280A2
Authority
FR
France
Prior art keywords
dephosphoration
cast iron
liquid cast
relates
dephosphorizing
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
FR7715062A
Other languages
English (en)
Other versions
FR2391280B2 (fr
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to FR7715062A priority Critical patent/FR2391280A2/fr
Publication of FR2391280A2 publication Critical patent/FR2391280A2/fr
Application granted granted Critical
Publication of FR2391280B2 publication Critical patent/FR2391280B2/fr
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
    • 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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

L'invention se rapporte à la sidérurgie. Elle concerne un procédé de déphosphoration de fonte liquide, caractérisé en ce qu'on ajoute à celle-ci : a. un agent de déphosphoration choisi parmi la chaux, un laitier de convertisseur et les mélanges de ceux-ci, et b. un oxydant qui est tel que l'on obtienne un laitier contenant une quantité de CaO qui représente de 2,5 à 3 fois la somme des quantités de SiO2 et P2 O5 et qui a une teneur totale en fer (T.Fe) de 15 à 50 %. Utilisation pour la production d'aciers spéciaux.
FR7715062A 1977-05-17 1977-05-17 Procede de dephosphoration de la fonte liquide Granted FR2391280A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7715062A FR2391280A2 (fr) 1977-05-17 1977-05-17 Procede de dephosphoration de la fonte liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7715062A FR2391280A2 (fr) 1977-05-17 1977-05-17 Procede de dephosphoration de la fonte liquide

Publications (2)

Publication Number Publication Date
FR2391280A2 true FR2391280A2 (fr) 1978-12-15
FR2391280B2 FR2391280B2 (fr) 1983-07-08

Family

ID=9190908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7715062A Granted FR2391280A2 (fr) 1977-05-17 1977-05-17 Procede de dephosphoration de la fonte liquide

Country Status (1)

Country Link
FR (1) FR2391280A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR986779A (fr) * 1949-03-18 1951-08-06 Commentry Fourchambault Et Dec Procédé de déphosphoration de la fonte et fonte obtenue
FR1062328A (fr) * 1951-08-30 1954-04-21 Procédé pour la déphosphoration de métaux, par exemple de la fonte et ins?ons pour la mise en oeuvre de ce procédé
GB995907A (en) * 1961-04-05 1965-06-23 Stora Kopparbergs Bergslags Ab Process for dephosphorizing pig iron
FR1425195A (fr) * 1964-03-03 1966-01-14 Stora Kopparbergs Bergslags Ab Procédé de déphosphoration de la fonte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR986779A (fr) * 1949-03-18 1951-08-06 Commentry Fourchambault Et Dec Procédé de déphosphoration de la fonte et fonte obtenue
FR1062328A (fr) * 1951-08-30 1954-04-21 Procédé pour la déphosphoration de métaux, par exemple de la fonte et ins?ons pour la mise en oeuvre de ce procédé
GB995907A (en) * 1961-04-05 1965-06-23 Stora Kopparbergs Bergslags Ab Process for dephosphorizing pig iron
FR1425195A (fr) * 1964-03-03 1966-01-14 Stora Kopparbergs Bergslags Ab Procédé de déphosphoration de la fonte

Also Published As

Publication number Publication date
FR2391280B2 (fr) 1983-07-08

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