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GB408254A - Process for dephosphorising steel - Google Patents

Process for dephosphorising steel

Info

Publication number
GB408254A
GB408254A GB31641/33A GB3164133A GB408254A GB 408254 A GB408254 A GB 408254A GB 31641/33 A GB31641/33 A GB 31641/33A GB 3164133 A GB3164133 A GB 3164133A GB 408254 A GB408254 A GB 408254A
Authority
GB
United Kingdom
Prior art keywords
steel
fluorspar
silica
referred
lime
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
GB31641/33A
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Publication of GB408254A publication Critical patent/GB408254A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; 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

In a process for dephosphorizing steel in an induction furnace, the molten steel is treated therein with a molten and very fluid basic slag which covers and protects the surface of the metal against oxidation by the air substantially from the beginning of the operation, an intense agitation of the metal being produced by the electric field. Slags comprising silica, lime iron oxide and a flux such as fluorspar, sodium or potassium salts &c. are referred to and in an example a slag comprises 3 per cent of silica, 60 of lime, 35 of iron oxide and 2 of fluorspar. Specification 405,633 is referred to.
GB31641/33A 1931-08-31 1932-07-29 Process for dephosphorising steel Expired GB408254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT408254X 1931-08-31

Publications (1)

Publication Number Publication Date
GB408254A true GB408254A (en) 1934-03-29

Family

ID=11249938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31641/33A Expired GB408254A (en) 1931-08-31 1932-07-29 Process for dephosphorising steel

Country Status (1)

Country Link
GB (1) GB408254A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009828A3 (en) * 1995-07-13 1997-10-07 Centre Rech Metallurgique Method of recovering iron-rich iron and steel manufacturing residues

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009828A3 (en) * 1995-07-13 1997-10-07 Centre Rech Metallurgique Method of recovering iron-rich iron and steel manufacturing residues

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