GB933997A - Improvements in the refining of pig-iron - Google Patents

Improvements in the refining of pig-iron

Info

Publication number
GB933997A
GB933997A GB2822361A GB2822361A GB933997A GB 933997 A GB933997 A GB 933997A GB 2822361 A GB2822361 A GB 2822361A GB 2822361 A GB2822361 A GB 2822361A GB 933997 A GB933997 A GB 933997A
Authority
GB
United Kingdom
Prior art keywords
furnace
drying
refining
metal
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
GB2822361A
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of GB933997A publication Critical patent/GB933997A/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
    • 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
    • C21C5/32—Blowing from above

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (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)

Abstract

A method of refining pig iron to steel comprises surface blowing with oxygen until the carbon content of the metal is up to 0.05% higher than that desired, adding a drying and dephosphorizing agent, agitating the bath, and retaining the dried slag in the furnace for use as the first slag for the succeeding charge. The process may be carried out in a Kaldo furnace and, after addition of the drying and dephosphorizing agent, e.g. lime, in amount 1-3% of the total weight of metal, the furnace may be rotated for less than one minute before tapping.
GB2822361A 1960-08-19 1961-08-03 Improvements in the refining of pig-iron Expired GB933997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836217A FR1272593A (en) 1960-08-19 1960-08-19 Improvements in the refining of cast iron by oxygen blowing

Publications (1)

Publication Number Publication Date
GB933997A true GB933997A (en) 1963-08-14

Family

ID=8737652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2822361A Expired GB933997A (en) 1960-08-19 1961-08-03 Improvements in the refining of pig-iron

Country Status (5)

Country Link
AT (1) AT242174B (en)
ES (1) ES269915A1 (en)
FR (1) FR1272593A (en)
GB (1) GB933997A (en)
LU (1) LU40448A1 (en)

Also Published As

Publication number Publication date
ES269915A1 (en) 1962-03-01
LU40448A1 (en) 1961-09-28
FR1272593A (en) 1961-09-29
AT242174B (en) 1965-09-10

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