GB824394A - Method for the desulphurization of pig iron and steel - Google Patents

Method for the desulphurization of pig iron and steel

Info

Publication number
GB824394A
GB824394A GB4050/57A GB405057A GB824394A GB 824394 A GB824394 A GB 824394A GB 4050/57 A GB4050/57 A GB 4050/57A GB 405057 A GB405057 A GB 405057A GB 824394 A GB824394 A GB 824394A
Authority
GB
United Kingdom
Prior art keywords
basic
hydrocarbon
mixture
desulphurizing agent
pig 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
GB4050/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB824394A publication Critical patent/GB824394A/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
    • 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)

Abstract

Liquid pig iron is desulphurized by adding to a bath of the metal a mixture of a basic desulphurizing agent, and a hydrocarbon which liberates hydrogen and carbon on contact with the bath, the basic desulphurizing agent being brought to a finely divided state and impregnated with the hydrocarbon in the liquid or vapour state. The basic desulphurizing agent may be an alkali metal, or an alkaline earth metal, carbonate or oxide or a mixture thereof and may also be mixed with a basic slag, and the hydrocarbon may be an oil, a tar or a paraffin. The mixture may be added during pouring from one vessel to another, by injection in a gas e.g. nitrogen, or during a short blow in a Bessemer converter, the slag being carefully removed before conversion proper starts.
GB4050/57A 1956-02-23 1957-02-06 Method for the desulphurization of pig iron and steel Expired GB824394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU824394X 1956-02-23

Publications (1)

Publication Number Publication Date
GB824394A true GB824394A (en) 1959-11-25

Family

ID=19733836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4050/57A Expired GB824394A (en) 1956-02-23 1957-02-06 Method for the desulphurization of pig iron and steel

Country Status (1)

Country Link
GB (1) GB824394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2252796A1 (en) * 1972-10-27 1974-05-22 Sueddeutsche Kalkstickstoff Desulphurizing molten metals - using substance evolving hydrogen or water at melt temp and opt a de-oxygenating agent
FR2228843A1 (en) * 1973-05-07 1974-12-06 Arbed
US4078915A (en) 1972-10-27 1978-03-14 Suddeutsche Kalkstickstoff-Werke Aktiengesellschaft Method and composition for the desulfurization of molten metals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2252796A1 (en) * 1972-10-27 1974-05-22 Sueddeutsche Kalkstickstoff Desulphurizing molten metals - using substance evolving hydrogen or water at melt temp and opt a de-oxygenating agent
US4078915A (en) 1972-10-27 1978-03-14 Suddeutsche Kalkstickstoff-Werke Aktiengesellschaft Method and composition for the desulfurization of molten metals
FR2228843A1 (en) * 1973-05-07 1974-12-06 Arbed

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