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GB994378A - Method of refining molten metals using an arc discharge - Google Patents

Method of refining molten metals using an arc discharge

Info

Publication number
GB994378A
GB994378A GB10112/62A GB1011262A GB994378A GB 994378 A GB994378 A GB 994378A GB 10112/62 A GB10112/62 A GB 10112/62A GB 1011262 A GB1011262 A GB 1011262A GB 994378 A GB994378 A GB 994378A
Authority
GB
United Kingdom
Prior art keywords
slag
molten
arc discharge
molten metals
layer
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
GB10112/62A
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 GB994378A publication Critical patent/GB994378A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • 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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • 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
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting
    • 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
    • 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
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Electrochemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Molten metal, such as steel, cast iron, ferroalloy e.g. Fe-Cr or Fe-Si, or non-ferrous metal, is electrolytically refined by holding the molten metal body beneath a non-turbulent layer of slag consisting of one or more halides, oxides and/or silicates of one or more alkali or alkaline earth metals (including Mg), Fe or Al, and establishing an arc, e.g. with a D.C. voltage of 30-300 v., in the space between the slag layer and an anode above but not in contact with the slag layer. For deoxidizing and desulphurizing 13% Cr stainless steel or cast iron, a molten slag consisting of CaO, SiO2, MgO, Al2O3 and FeO may be used; for refining copper, a molten slag consisting of CaO, NaCl and CaF2 may be used.
GB10112/62A 1961-07-01 1962-03-16 Method of refining molten metals using an arc discharge Expired GB994378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2338061 1961-07-01

Publications (1)

Publication Number Publication Date
GB994378A true GB994378A (en) 1965-06-10

Family

ID=12108909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10112/62A Expired GB994378A (en) 1961-07-01 1962-03-16 Method of refining molten metals using an arc discharge

Country Status (4)

Country Link
US (1) US3203883A (en)
DE (1) DE1608738B1 (en)
GB (1) GB994378A (en)
SE (1) SE318117B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396087A1 (en) * 1977-09-02 1979-01-26 Tscherna Metalurgia Electrochemically refining iron-based alloys in ladle - by applying a DC arc using submerged anode

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449373B (en) * 1977-07-01 1987-04-27 Dso Cherna Metalurgia SET AND DEVICE FOR REFINING IRON-BASED MELTORS IN ELECTRICAL REACTION OVEN
BG35678A1 (en) * 1981-12-01 1984-06-15 Savov Method and device for treating and refining liquid alloys
SE461048B (en) * 1987-03-02 1989-12-18 Gyproc Ab PERFORED, SOUND-ABSORBING DISC
CA1337848C (en) * 1987-05-26 1996-01-02 Iain David Sommerville Process for treating liquid metals
US4964973A (en) * 1988-10-14 1990-10-23 Brunswick Corporation Method and apparatus for producing titanium
US4875985A (en) * 1988-10-14 1989-10-24 Brunswick Corporation Method and appparatus for producing titanium
US5314524A (en) * 1992-02-28 1994-05-24 Mit (Mass. Institute Of Technology) Process of discharging charge-build up in slag steelmaking processes
US5700308A (en) * 1995-01-20 1997-12-23 Massachusetts Institute Of Technology Method for enhancing reaction rates in metals refining extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes
US5632800A (en) * 1995-10-30 1997-05-27 Massachusetts Institute Of Technology Accelerated decarburization of Fe-C metal alloys
US7901561B2 (en) * 2006-03-10 2011-03-08 Elkem As Method for electrolytic production and refining of metals
JP5183498B2 (en) * 2006-03-10 2013-04-17 エルケム アクシエセルスカプ Electrolytic production of silicon and scouring method
WO2009028924A1 (en) * 2007-08-29 2009-03-05 Jack Victor Nyrup Aguilar Ionising compound serving as an electric arc stabiliser
CN101658901B (en) 2008-03-10 2014-10-29 王宇新 Processing method and special casting equipment for preventing ductile iron liquor from generating spheroidization recession and reducing casting temperature in process of casting
JPWO2012060208A1 (en) * 2010-11-02 2014-05-12 学校法人同志社 Method for producing metal fine particles
CN105385857A (en) * 2015-11-06 2016-03-09 攀钢集团成都钢钒有限公司 Method for smelting slag used for electroslag ingot resmelting and provided with P increase prevention function

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US800984A (en) * 1905-06-02 1905-10-03 Henry M Chance Process of purifying metals.
US2787592A (en) * 1948-10-01 1957-04-02 Ver Deutsche Metallwerke Ag Method for the treatment of metal
GB741567A (en) * 1952-01-10 1955-12-07 Guszstahlwerk Bochumer Ver Ag A method of making high-grade steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396087A1 (en) * 1977-09-02 1979-01-26 Tscherna Metalurgia Electrochemically refining iron-based alloys in ladle - by applying a DC arc using submerged anode

Also Published As

Publication number Publication date
DE1608738B1 (en) 1972-01-05
SE318117B (en) 1969-12-01
US3203883A (en) 1965-08-31

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