BE888007A - Procede de preparation d'acier a etapes d'affinage separees - Google Patents

Procede de preparation d'acier a etapes d'affinage separees Download PDF

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Publication number
BE888007A
BE888007A BE0/204174A BE204174A BE888007A BE 888007 A BE888007 A BE 888007A BE 0/204174 A BE0/204174 A BE 0/204174A BE 204174 A BE204174 A BE 204174A BE 888007 A BE888007 A BE 888007A
Authority
BE
Belgium
Prior art keywords
pig iron
emi
iron
steel according
slag
Prior art date
Application number
BE0/204174A
Other languages
English (en)
French (fr)
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BE888007A publication Critical patent/BE888007A/fr

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
    • C21C7/072—Treatment with gases
    • 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
    • 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
    • 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
    • C21C5/285—Plants therefor
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
BE0/204174A 1980-03-21 1981-03-18 Procede de preparation d'acier a etapes d'affinage separees BE888007A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3469380A JPS56133413A (en) 1980-03-21 1980-03-21 Steel making method by divided refining

Publications (1)

Publication Number Publication Date
BE888007A true BE888007A (fr) 1981-07-16

Family

ID=12421453

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/204174A BE888007A (fr) 1980-03-21 1981-03-18 Procede de preparation d'acier a etapes d'affinage separees

Country Status (2)

Country Link
JP (1) JPS56133413A (enExample)
BE (1) BE888007A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073274B1 (en) * 1981-08-19 1987-04-01 Nippon Steel Corporation Method of preliminary desiliconization of molten iron by injecting gaseous oxygen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591609A (ja) * 1982-06-28 1984-01-07 Nippon Steel Corp 溶銑の精錬方法
DE3364969D1 (en) * 1982-09-23 1986-09-04 Nat Res Dev Removing phosphorous from iron
JP2542137Y2 (ja) * 1990-05-24 1997-07-23 新技術工営株式会社 コンクリート型枠
JP6223249B2 (ja) * 2014-03-19 2017-11-01 株式会社神戸製鋼所 脱珪スラグを再利用する脱珪、脱りん、脱炭方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237510A (en) * 1975-09-19 1977-03-23 Nippon Steel Corp Dephosphorization method of molten cast iron
JPS5445611A (en) * 1977-09-16 1979-04-11 Kobe Steel Ltd Treating molten metal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073274B1 (en) * 1981-08-19 1987-04-01 Nippon Steel Corporation Method of preliminary desiliconization of molten iron by injecting gaseous oxygen

Also Published As

Publication number Publication date
JPS6362562B2 (enExample) 1988-12-02
JPS56133413A (en) 1981-10-19

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: NIPPON STEEL CORP.

Effective date: 20010318