GB451263A - Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags - Google Patents

Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags

Info

Publication number
GB451263A
GB451263A GB3060934A GB3060934A GB451263A GB 451263 A GB451263 A GB 451263A GB 3060934 A GB3060934 A GB 3060934A GB 3060934 A GB3060934 A GB 3060934A GB 451263 A GB451263 A GB 451263A
Authority
GB
United Kingdom
Prior art keywords
slag
manganese
regeneration
metal
manganese oxide
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
GB3060934A
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
Priority to GB3060934A priority Critical patent/GB451263A/en
Publication of GB451263A publication Critical patent/GB451263A/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
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal

Landscapes

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

Abstract

To extract oxides from ferrous metals, e.g. steel, acid slags are used in which the ratio of the manganese oxide content to the iron oxide content is equal to or greater than 4, the content of manganese oxide being preferably greater than 5 per cent. Periodic regeneration of the slag is effected to restore or maintain the value of the manganese oxide-iron oxide ratio. The slag may be melted and intermixed violently with the metal or may be used in the solid state in a ladle. The manganese oxide content may be so high, e.g. up to 30 per cent, that manganese is introduced into the metal, and the metal may also be enriched in silicon by reduction of silica in the slag. The iron oxide content of the slag is low, e.g. less than 4 per cent. The regeneration of the slag is effected by reduction of iron oxide by means of a reducing agent followed by replacement of part of the slag by fresh materials to compensate for any increase in the manganese oxide content and to restore the initial composition as regards silica and any basic materials, e.g. calcium oxide. If the metal has been enriched in manganese, manganese oxide must be added to the slag during regeneration.
GB3060934A 1934-10-25 1934-10-25 Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags Expired GB451263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3060934A GB451263A (en) 1934-10-25 1934-10-25 Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3060934A GB451263A (en) 1934-10-25 1934-10-25 Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags

Publications (1)

Publication Number Publication Date
GB451263A true GB451263A (en) 1935-04-26

Family

ID=10310334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3060934A Expired GB451263A (en) 1934-10-25 1934-10-25 Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags

Country Status (1)

Country Link
GB (1) GB451263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972883C (en) * 1942-01-03 1959-10-22 Phoenix Rheinrohr Ag Vereinigt Process for achieving better efficiency in slag reactions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972883C (en) * 1942-01-03 1959-10-22 Phoenix Rheinrohr Ag Vereinigt Process for achieving better efficiency in slag reactions

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