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FR2096985A7 - Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle - Google Patents

Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle

Info

Publication number
FR2096985A7
FR2096985A7 FR7027209A FR7027209A FR2096985A7 FR 2096985 A7 FR2096985 A7 FR 2096985A7 FR 7027209 A FR7027209 A FR 7027209A FR 7027209 A FR7027209 A FR 7027209A FR 2096985 A7 FR2096985 A7 FR 2096985A7
Authority
FR
France
Prior art keywords
casting ladle
dephosphorisation
desulphurisation
addn
melt
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
FR7027209A
Other languages
French (fr)
Other versions
FR2096985B3 (en
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.)
EUROSSID
Original Assignee
EUROSSID
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 EUROSSID filed Critical EUROSSID
Priority to FR7027209A priority Critical patent/FR2096985A7/en
Application granted granted Critical
Publication of FR2096985A7 publication Critical patent/FR2096985A7/en
Publication of FR2096985B3 publication Critical patent/FR2096985B3/fr
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
    • C21C1/025—Agents used for dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The additive in powder form comprises: (CaO + Ca(OH)2) 55-65%, CaCO3 5-10%, Na2 CO3 6-12%, CaF2 3-7%, (FeO + Fe2O3) 6-12%, MnO2 5-12%. Particle size is pref. 80-100 mesh. Additive is used at a rate of 4 kg./tonne cast metal, and efficient removal of S or P is achieved simply in the casting ladle without requiring any ancillary equipment.
FR7027209A 1970-07-23 1970-07-23 Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle Expired FR2096985A7 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7027209A FR2096985A7 (en) 1970-07-23 1970-07-23 Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7027209A FR2096985A7 (en) 1970-07-23 1970-07-23 Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle

Publications (2)

Publication Number Publication Date
FR2096985A7 true FR2096985A7 (en) 1972-03-03
FR2096985B3 FR2096985B3 (en) 1973-04-27

Family

ID=9059128

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7027209A Expired FR2096985A7 (en) 1970-07-23 1970-07-23 Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle

Country Status (1)

Country Link
FR (1) FR2096985A7 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179485A (en) * 1973-01-18 1979-12-18 Ceraver Bone prosthesis and method of manufacture thereof
FR2460336A1 (en) * 1979-06-29 1981-01-23 Nisshin Steel Co Ltd METHOD FOR DEPHOSPHORIZATION AND DENITRATION OF CHROMIUM-CONTAINING CAST IRON
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
FR2541310A1 (en) * 1983-02-18 1984-08-24 Lafarge Fondu Int Method for manufacturing steel-desulphurisation slag

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179485A (en) * 1973-01-18 1979-12-18 Ceraver Bone prosthesis and method of manufacture thereof
FR2460336A1 (en) * 1979-06-29 1981-01-23 Nisshin Steel Co Ltd METHOD FOR DEPHOSPHORIZATION AND DENITRATION OF CHROMIUM-CONTAINING CAST IRON
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
FR2541310A1 (en) * 1983-02-18 1984-08-24 Lafarge Fondu Int Method for manufacturing steel-desulphurisation slag

Also Published As

Publication number Publication date
FR2096985B3 (en) 1973-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse