US3885957B1 - - Google Patents

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Publication number
US3885957B1
US3885957B1 US33369073A US3885957B1 US 3885957 B1 US3885957 B1 US 3885957B1 US 33369073 A US33369073 A US 33369073A US 3885957 B1 US3885957 B1 US 3885957B1
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US
United States
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 - Lifetime
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Thyssen AG
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Thyssen AG
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Publication date
Application filed by Thyssen AG filed Critical Thyssen AG
Publication of US3885957A publication Critical patent/US3885957A/en
Assigned to THYSSEN AKTIENGESELLSCHAFT reassignment THYSSEN AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: THYSSEN NIEDERRHEIN AG HUTTEN-UND-WALZWERKE
Application granted granted Critical
Publication of US3885957B1 publication Critical patent/US3885957B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
US333690A 1972-03-01 1973-02-20 Method for the desulfurization of a steel melt Expired - Lifetime US3885957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2209902A DE2209902B2 (en) 1972-03-01 1972-03-01 Process for the desulphurization of steel melts

Publications (2)

Publication Number Publication Date
US3885957A US3885957A (en) 1975-05-27
US3885957B1 true US3885957B1 (en) 1986-12-16

Family

ID=5837601

Family Applications (1)

Application Number Title Priority Date Filing Date
US333690A Expired - Lifetime US3885957A (en) 1972-03-01 1973-02-20 Method for the desulfurization of a steel melt

Country Status (8)

Country Link
US (1) US3885957A (en)
JP (1) JPS5133761B2 (en)
BE (1) BE795333A (en)
CA (1) CA980578A (en)
DE (1) DE2209902B2 (en)
FR (1) FR2173952B1 (en)
GB (1) GB1372672A (en)
IT (1) IT979331B (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985550A (en) * 1975-01-23 1976-10-12 United States Steel Corporation Method of producing low sulfur steel
US3992195A (en) * 1974-04-20 1976-11-16 Thyssen Niederrhein Ag Hutten- Und Walzwerke Process for the production of steel with increased ductility
US4008104A (en) * 1974-05-09 1977-02-15 Nippon Steel Corporation Method for dephosphorization and denitrification of an alloy containing easily oxidizable components
US4036635A (en) * 1975-06-18 1977-07-19 Thyssen Niederrhein Ag Hutten- Und Walzwerke Process for making a steel melt for continuous casting
US4067729A (en) * 1976-09-01 1978-01-10 Wolfgang Holzgruber Desulfurization of liquid iron melts
US4067730A (en) * 1974-04-20 1978-01-10 Thyssen Niederrhein Ag Hutten-Und Walzwerke Process for the production of steel with increased ductility
US4069039A (en) * 1976-06-23 1978-01-17 A. Finkl & Sons Co. Method for desulfurization using arc heat under vacuum
US4123258A (en) * 1974-04-20 1978-10-31 Thyssen Niederrhein Process for the production of steel with increased ductility and for the desulfurization of a steel melt
US4154605A (en) * 1978-03-08 1979-05-15 Skw Trostberg Aktiengesellschaft Desulfurization of iron melts with fine particulate mixtures containing alkaline earth metal carbonates
US4169724A (en) * 1977-02-26 1979-10-02 Skw Trostberg Aktiengesellschaft Desulfurization of iron melts
US4194903A (en) * 1976-10-12 1980-03-25 Hoesch Werke Aktiengesellschaft Method of producing steel with the lowest possible sulfur content by desulfurization of pig iron with magnesium coke
US4213780A (en) * 1978-07-12 1980-07-22 Lava Crucible Refractories Co. Method of introducing calcium and calcium alloys into a vessel of molten metal
US4232854A (en) * 1978-05-26 1980-11-11 Barbakadze Dzhondo F Method of introducing powdered reagents into molten metals and apparatus for effecting same
US4238227A (en) * 1979-06-27 1980-12-09 United States Steel Corporation Cleansing of steel by gas rinsing
US4341554A (en) * 1981-04-02 1982-07-27 Jones & Laughlin Steel Incorporated Process for desulfurizing steel
US4392887A (en) * 1981-12-04 1983-07-12 Arbed S.A. Method of desulfurizing an iron melt
EP0092652A1 (en) * 1982-04-12 1983-11-02 Elkem A/S Apparatus for treating molten metal and method for refining steel melts
USRE31676E (en) 1982-09-29 1984-09-18 Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG Method and apparatus for dispensing a fluidizable solid from a pressure vessel
US4483710A (en) * 1981-03-31 1984-11-20 Union Carbide Corporation Addition agent for adding vanadium to iron base alloys
EP0137618A2 (en) * 1983-08-12 1985-04-17 Pfizer Inc. Process and apparatus for adding calcium to a bath of molten ferrous material
US4941913A (en) * 1988-07-22 1990-07-17 Voest-Alpine Stahl Donawitz Gesellschaft M.B.H. Process for heating steel melts as well as device for performing this process
US5480127A (en) * 1994-02-11 1996-01-02 Leybold Durferrit Gmbh Apparatus for the melting and treatment of metal
WO2002079522A1 (en) * 2001-04-02 2002-10-10 Nucor Corporation Ladle refining of steel
CN105385811A (en) * 2015-11-27 2016-03-09 山东钢铁股份有限公司 Production method for steel containing aluminum

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419176B2 (en) * 1974-04-20 1976-02-26 Thyssen Niederrhein AG Hütten- und Walzwerke, 4200 Oberhausen METHOD OF ADDING ALKALINE EARTH TREATMENT AGENTS TO STEEL MELT
JPS5123421A (en) * 1974-08-22 1976-02-25 Nippon Steel Corp SHINKUDATSUGASUZOSAISEIRENHOHO
CA1069314A (en) * 1974-09-20 1980-01-08 Sumitomo Metal Industries, Ltd. Process for the addition of calcium to molten steel
LU80692A1 (en) * 1978-12-21 1980-07-21 Arbed METHOD AND DEVICE FOR DESULFURING IRON MELT
LU82977A1 (en) * 1980-12-03 1982-07-07 Arbed METHOD FOR DESOLVERIFYING MELTING IRON
LU83247A1 (en) * 1981-03-23 1983-02-22 Arbed METHOD AND DEVICE FOR TREATING METAL MELT IN THE METALURGICAL PROCESSES
LU83314A1 (en) * 1981-04-24 1983-03-24 Arbed METHOD AND DEVICE FOR DESULFURING IRON MELT
JPH02166217A (en) * 1988-12-20 1990-06-26 Metal Res Corp:Kk Manufacture of low carbon iron-chromium alloy

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE639650A (en) * 1962-11-29
GB1206062A (en) * 1967-10-18 1970-09-23 Nippon Kokan Kk Deoxidation method
DE1758250B1 (en) * 1968-04-29 1971-10-28 Sueddeutsche Kalkstickstoff Agent for the desulphurisation of iron melts

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992195A (en) * 1974-04-20 1976-11-16 Thyssen Niederrhein Ag Hutten- Und Walzwerke Process for the production of steel with increased ductility
US4067730A (en) * 1974-04-20 1978-01-10 Thyssen Niederrhein Ag Hutten-Und Walzwerke Process for the production of steel with increased ductility
US4123258A (en) * 1974-04-20 1978-10-31 Thyssen Niederrhein Process for the production of steel with increased ductility and for the desulfurization of a steel melt
US4008104A (en) * 1974-05-09 1977-02-15 Nippon Steel Corporation Method for dephosphorization and denitrification of an alloy containing easily oxidizable components
US3985550A (en) * 1975-01-23 1976-10-12 United States Steel Corporation Method of producing low sulfur steel
US4036635A (en) * 1975-06-18 1977-07-19 Thyssen Niederrhein Ag Hutten- Und Walzwerke Process for making a steel melt for continuous casting
US4069039A (en) * 1976-06-23 1978-01-17 A. Finkl & Sons Co. Method for desulfurization using arc heat under vacuum
US4067729A (en) * 1976-09-01 1978-01-10 Wolfgang Holzgruber Desulfurization of liquid iron melts
US4194903A (en) * 1976-10-12 1980-03-25 Hoesch Werke Aktiengesellschaft Method of producing steel with the lowest possible sulfur content by desulfurization of pig iron with magnesium coke
US4169724A (en) * 1977-02-26 1979-10-02 Skw Trostberg Aktiengesellschaft Desulfurization of iron melts
US4154605A (en) * 1978-03-08 1979-05-15 Skw Trostberg Aktiengesellschaft Desulfurization of iron melts with fine particulate mixtures containing alkaline earth metal carbonates
US4232854A (en) * 1978-05-26 1980-11-11 Barbakadze Dzhondo F Method of introducing powdered reagents into molten metals and apparatus for effecting same
US4213780A (en) * 1978-07-12 1980-07-22 Lava Crucible Refractories Co. Method of introducing calcium and calcium alloys into a vessel of molten metal
US4238227A (en) * 1979-06-27 1980-12-09 United States Steel Corporation Cleansing of steel by gas rinsing
US4483710A (en) * 1981-03-31 1984-11-20 Union Carbide Corporation Addition agent for adding vanadium to iron base alloys
US4341554A (en) * 1981-04-02 1982-07-27 Jones & Laughlin Steel Incorporated Process for desulfurizing steel
US4392887A (en) * 1981-12-04 1983-07-12 Arbed S.A. Method of desulfurizing an iron melt
EP0092652A1 (en) * 1982-04-12 1983-11-02 Elkem A/S Apparatus for treating molten metal and method for refining steel melts
USRE31676E (en) 1982-09-29 1984-09-18 Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG Method and apparatus for dispensing a fluidizable solid from a pressure vessel
EP0137618A2 (en) * 1983-08-12 1985-04-17 Pfizer Inc. Process and apparatus for adding calcium to a bath of molten ferrous material
EP0137618A3 (en) * 1983-08-12 1986-04-02 Pfizer Inc. Process and apparatus for adding calcium to a bath of molten ferrous material
US4941913A (en) * 1988-07-22 1990-07-17 Voest-Alpine Stahl Donawitz Gesellschaft M.B.H. Process for heating steel melts as well as device for performing this process
US5480127A (en) * 1994-02-11 1996-01-02 Leybold Durferrit Gmbh Apparatus for the melting and treatment of metal
WO2002079522A1 (en) * 2001-04-02 2002-10-10 Nucor Corporation Ladle refining of steel
US6547849B2 (en) 2001-04-02 2003-04-15 Nucor Corporation Ladle refining of steel
CN105385811A (en) * 2015-11-27 2016-03-09 山东钢铁股份有限公司 Production method for steel containing aluminum

Also Published As

Publication number Publication date
CA980578A (en) 1975-12-30
FR2173952A1 (en) 1973-10-12
FR2173952B1 (en) 1976-11-05
BE795333A (en) 1973-05-29
IT979331B (en) 1974-09-30
GB1372672A (en) 1974-11-06
DE2209902A1 (en) 1973-09-27
JPS48100311A (en) 1973-12-18
US3885957A (en) 1975-05-27
JPS5133761B2 (en) 1976-09-21
DE2209902B2 (en) 1975-01-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: THYSSEN AKTIENGESELLSCHAFT, AUGUST-THYSSEN-STRASSE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:THYSSEN NIEDERRHEIN AG HUTTEN-UND-WALZWERKE;REEL/FRAME:004018/0293

Effective date: 19820629

Owner name: THYSSEN AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THYSSEN NIEDERRHEIN AG HUTTEN-UND-WALZWERKE;REEL/FRAME:004018/0293

Effective date: 19820629

RR Request for reexamination filed

Effective date: 19851115

B1 Reexamination certificate first reexamination