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GB138651A - Improved process of purifying and refining iron - Google Patents

Improved process of purifying and refining iron

Info

Publication number
GB138651A
GB138651A GB373120A GB373120A GB138651A GB 138651 A GB138651 A GB 138651A GB 373120 A GB373120 A GB 373120A GB 373120 A GB373120 A GB 373120A GB 138651 A GB138651 A GB 138651A
Authority
GB
United Kingdom
Prior art keywords
purifying
improved process
refining iron
iron
gas
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
GB373120A
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of GB138651A publication Critical patent/GB138651A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04Refining by applying a vacuum
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/06Deoxidising, e.g. killing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28Non-electron-emitting electrodes; Screens
    • H01J19/30Non-electron-emitting electrodes; Screens characterised by the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00Discharge tubes and lamps
    • H01J2893/0001Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012Constructional arrangements
    • H01J2893/0019Chemical composition and manufacture
    • H01J2893/002Chemical composition and manufacture chemical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

138,651. Heraeus Ges., W. C. April 18, 1918, [Convention date]. Addition to 138,648. Molten metals, removing occluded gas and other impurities from by exhaustion.-In refining iron by melting under a high degree of vacuum in a gas-tight electric furnace, as described in the parent Specification, oxidizing and reducing agents such as iron oxide, carbon dioxide, steam, oxygen and hydrogen, and metals such as sodium and zinc, are added to the charge.
GB373120A 1918-01-11 1920-02-06 Improved process of purifying and refining iron Expired GB138651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE138648X 1918-01-11

Publications (1)

Publication Number Publication Date
GB138651A true GB138651A (en) 1921-05-06

Family

ID=5667404

Family Applications (3)

Application Number Title Priority Date Filing Date
GB3594/20A Expired GB138648A (en) 1918-01-11 1920-02-05 Improved process of vacuum melting and refining metals and alloys
GB373120A Expired GB138651A (en) 1918-01-11 1920-02-06 Improved process of purifying and refining iron
GB15645/20A Expired GB144690A (en) 1918-01-11 1920-06-09 Improvements relating to the treatment of metal used in the manufacture of parts of vacuum tubes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3594/20A Expired GB138648A (en) 1918-01-11 1920-02-05 Improved process of vacuum melting and refining metals and alloys

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB15645/20A Expired GB144690A (en) 1918-01-11 1920-06-09 Improvements relating to the treatment of metal used in the manufacture of parts of vacuum tubes

Country Status (3)

Country Link
CH (1) CH89145A (en)
FR (8) FR519876A (en)
GB (3) GB138648A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920362A (en) * 1953-05-22 1960-01-12 Selas Corp Of America Method of refining metal

Also Published As

Publication number Publication date
FR23662E (en) 1921-12-15
FR519876A (en) 1921-06-16
FR23661E (en) 1921-12-15
FR23086E (en) 1921-10-04
GB144690A (en) 1921-05-19
FR23660E (en) 1921-12-15
FR23085E (en) 1921-10-04
GB138648A (en) 1921-05-05
FR23084E (en) 1921-10-04
CH89145A (en) 1921-05-02
FR23087E (en) 1921-10-04

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