GB655051A - Improvements in or relating to the production of metals or metal alloys - Google Patents

Improvements in or relating to the production of metals or metal alloys

Info

Publication number
GB655051A
GB655051A GB33487/47A GB3348747A GB655051A GB 655051 A GB655051 A GB 655051A GB 33487/47 A GB33487/47 A GB 33487/47A GB 3348747 A GB3348747 A GB 3348747A GB 655051 A GB655051 A GB 655051A
Authority
GB
United Kingdom
Prior art keywords
oxide
metals
magnesium oxide
alloys
metal
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
GB33487/47A
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 GB655051A publication Critical patent/GB655051A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • 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
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

In a method of wholly or partially decarbonizing metals or metal alloys containing carbon, the said metals or alloys are admixed with magnesium oxide or materials containing or capable of forming such oxide, the oxide being reduced by the carbon in p the metal or alloy to be decarbonized at a temperature of approximately 1500-2000 DEG C. The liberated magnesium may be burnt and returned to the process. The treatment may be carried out in an arc furnace lined with magnesite, the mixture of metal or alloy and magnesium oxide being added in powder form, or alternatively, in a high frequency furnace which has a lining of sintered magnesite coated with calcined magnesite or magnesium oxide. Metals or alloys which are entirely or partially relieved of carbon may be obtained directly from the corresponding ores, the reduction charge being mixed with magnesium oxide or materials containing or capable of forming it, such as dolomite, roasted dolomite or non-roasted magnesite, the slag formed during reduction being enriched in magnesium oxide which causes decarbonization of the metal or alloy. The ore or ore mixture may be first sintered with the oxide material, thus forming a compound such as magnesium ferrite. The treatment of iron or iron alloys, such as pig iron and high-carbon ferro-chrome, which may contain nickel, is referred to.
GB33487/47A 1946-12-27 1947-12-18 Improvements in or relating to the production of metals or metal alloys Expired GB655051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE269570X 1946-12-27

Publications (1)

Publication Number Publication Date
GB655051A true GB655051A (en) 1951-07-11

Family

ID=20306726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33487/47A Expired GB655051A (en) 1946-12-27 1947-12-18 Improvements in or relating to the production of metals or metal alloys

Country Status (3)

Country Link
BE (1) BE478716A (en)
CH (1) CH269570A (en)
GB (1) GB655051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913312A (en) * 1954-11-04 1959-11-17 Union Carbide Corp Purification of titanium boride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913312A (en) * 1954-11-04 1959-11-17 Union Carbide Corp Purification of titanium boride

Also Published As

Publication number Publication date
BE478716A (en) 1900-01-01
CH269570A (en) 1950-07-15

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