GB1308212A - Decarburizing molten steel - Google Patents

Decarburizing molten steel

Info

Publication number
GB1308212A
GB1308212A GB4149170A GB4149170A GB1308212A GB 1308212 A GB1308212 A GB 1308212A GB 4149170 A GB4149170 A GB 4149170A GB 4149170 A GB4149170 A GB 4149170A GB 1308212 A GB1308212 A GB 1308212A
Authority
GB
United Kingdom
Prior art keywords
oxygen
aug
recirculation
gas
steel
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
GB4149170A
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries Inc
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 Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of GB1308212A publication Critical patent/GB1308212A/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
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel
    • 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
    • C21C7/068—Decarburising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2

Landscapes

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

Abstract

1308212 Decarburising steel ALLEGHENY LUDLUM INDUSTRIES Inc 28 Aug 1970 [29 Aug 1969] 41491/70 Heading C7D Oxygen is blown into the converter and the evolved gases collected cleaned and recirculated by adding them to the oxygen stream, preferably in a gas: oxygen ratio of at least 1 : 4, the ratio changing according to the rate of carbon removal. Prior to recirculation the gas may be treated to reduce CO 2 to CO. When treating carbon steel recirculation may commence when the iron oxide content of the slag reaches 10%, while for stainless steel argon may be additionally introduced with the oxygen.
GB4149170A 1969-08-29 1970-08-28 Decarburizing molten steel Expired GB1308212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85422669A 1969-08-29 1969-08-29

Publications (1)

Publication Number Publication Date
GB1308212A true GB1308212A (en) 1973-02-21

Family

ID=25318089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4149170A Expired GB1308212A (en) 1969-08-29 1970-08-28 Decarburizing molten steel

Country Status (6)

Country Link
US (1) US3649246A (en)
JP (1) JPS499007B1 (en)
BE (1) BE755456A (en)
DE (1) DE2042811C3 (en)
FR (1) FR2059745B1 (en)
GB (1) GB1308212A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861888A (en) * 1973-06-28 1975-01-21 Union Carbide Corp Use of CO{HD 2 {B in argon-oxygen refining of molten metal
LU70847A1 (en) * 1973-09-25 1975-01-02
US4081270A (en) * 1977-04-11 1978-03-28 Union Carbide Corporation Renitrogenation of basic-oxygen steels during decarburization
DE2734961B2 (en) * 1977-08-03 1980-02-28 Gottfried Bischoff Bau Kompl. Gasreinigungs- Und Wasserrueckkuehlanlagen Gmbh & Co Kg, 4300 Essen Converter plant for refining steel from pig iron
JPS5442324A (en) * 1977-09-10 1979-04-04 Nisshin Steel Co Ltd Control procedure of steel making process using mass spectrometer
JPS5442323A (en) * 1977-09-10 1979-04-04 Nisshin Steel Co Ltd Control procedure of steel making process using mass spectormeter
LU81859A1 (en) * 1979-11-07 1981-06-04 Arbed PROCESS FOR CONDITIONING SLAG DURING REFINING OF A METAL BATH
LU82070A1 (en) * 1980-01-09 1981-09-10 Arbed METHOD FOR REFINING A METAL BATH
US4451288A (en) * 1982-06-29 1984-05-29 Union Carbide Corporation Method for producing low hydrogen content in steels produced by subsurface pneumatic refining
HU189326B (en) * 1983-08-26 1986-06-30 Lenin Kohaszati Muevek,Hu Process for production of steels with low or super-low carbon content with the regulation the end point of the carbon and blasting temperature
JPS62142712A (en) * 1985-12-18 1987-06-26 Nippon Kokan Kk <Nkk> Manufacture of steel or iron by converter or by smelting and reducing furnace
US5520718A (en) * 1994-09-02 1996-05-28 Inland Steel Company Steelmaking degassing method
US6923843B1 (en) 2001-11-13 2005-08-02 Nupro Corporation Method for oxygen injection in metallurgical process requiring variable oxygen feed rate
US9045805B2 (en) 2013-03-12 2015-06-02 Ati Properties, Inc. Alloy refining methods

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811435A (en) * 1956-03-26 1957-10-29 British Oxygen Co Ltd Treatment of fumes in steelmaking operations
US3252790A (en) * 1956-06-27 1966-05-24 Union Carbide Corp Preparation of metals and alloys
GB883958A (en) * 1957-12-23 1961-12-06 Bot Brassert Oxygen Technik Ag Improvements in or relating to the refining of crude iron
US3058823A (en) * 1959-04-13 1962-10-16 British Oxygen Co Ltd Treatment of molten ferrous metal
US2969282A (en) * 1959-05-06 1961-01-24 British Oxygen Co Ltd Treatment of ferrous metal
US3003865A (en) * 1959-09-10 1961-10-10 Cameron Iron Works Inc Decarburizing process for alloy steels containing chromium
DE1194886B (en) * 1960-06-24 1965-06-16 Beteiligungs & Patentverw Gmbh Process for refining pig iron, especially those with a high phosphorus content
BE610265A (en) * 1960-11-18
US3215523A (en) * 1963-05-27 1965-11-02 Chemical Construction Corp Recovery of off-gas from a steel converter
US3336132A (en) * 1964-03-09 1967-08-15 Crucible Steel Co America Stainless steel manufacturing process and equipment

Also Published As

Publication number Publication date
FR2059745B1 (en) 1974-05-24
DE2042811A1 (en) 1971-03-11
DE2042811C3 (en) 1980-11-27
JPS499007B1 (en) 1974-03-01
DE2042811B2 (en) 1980-04-03
US3649246A (en) 1972-03-14
BE755456A (en) 1971-03-01
FR2059745A1 (en) 1971-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee