JPS54103717A - Slag forming material - Google Patents

Slag forming material

Info

Publication number
JPS54103717A
JPS54103717A JP987178A JP987178A JPS54103717A JP S54103717 A JPS54103717 A JP S54103717A JP 987178 A JP987178 A JP 987178A JP 987178 A JP987178 A JP 987178A JP S54103717 A JPS54103717 A JP S54103717A
Authority
JP
Japan
Prior art keywords
slag
fluorite
improving
insulating effect
high alumina
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.)
Granted
Application number
JP987178A
Other languages
Japanese (ja)
Other versions
JPS5611367B2 (en
Inventor
Toru Kawauchi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP987178A priority Critical patent/JPS54103717A/en
Publication of JPS54103717A publication Critical patent/JPS54103717A/en
Publication of JPS5611367B2 publication Critical patent/JPS5611367B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

  • Nonmetallic Welding Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To form a slag excellent in the insulating effect at a low cost free from poisonous gas by using waste high alumina refractories for a slag forming agent to be used in the reduction period for making steel with electric furnaces.
CONSTITUTION: When steel is refined with an Heroult electric furnace, CaO is fed to form a slag for reduction period and subsequently, used high alumina refractories crushed is fed together with powdered coal and A1 shavings. This enable the formation of a reduction slag dispensing with fluorite and costly SiC previously used. As compared with the conventional method using the fluorite, S, O, N and H as impurities are reduced thereby improving the cleanliness while eliminating fluoric gas. The slag turns to a bubble state immediately after it is cooled from the glowing state, thus improving the insulating effect.
COPYRIGHT: (C)1979,JPO&Japio
JP987178A 1978-02-02 1978-02-02 Slag forming material Granted JPS54103717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP987178A JPS54103717A (en) 1978-02-02 1978-02-02 Slag forming material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP987178A JPS54103717A (en) 1978-02-02 1978-02-02 Slag forming material

Publications (2)

Publication Number Publication Date
JPS54103717A true JPS54103717A (en) 1979-08-15
JPS5611367B2 JPS5611367B2 (en) 1981-03-13

Family

ID=11732195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP987178A Granted JPS54103717A (en) 1978-02-02 1978-02-02 Slag forming material

Country Status (1)

Country Link
JP (1) JPS54103717A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402013B1 (en) * 1999-10-19 2003-10-17 주식회사 포스코 Method for making slag with waste alumina refratory
JP2009531534A (en) * 2005-04-01 2009-09-03 テキント コンパニア テクニカ インテルナツィオナレ ソシエタ ペル アチオニ Method and apparatus for recovering refractory debris and ladle slag as process slag in ferrous metallurgy production at EAF and for performing related metering on a furnace for forming process slag
JP2012026028A (en) * 2010-06-23 2012-02-09 Jfe Steel Corp Desulfurization method for molten iron

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100402013B1 (en) * 1999-10-19 2003-10-17 주식회사 포스코 Method for making slag with waste alumina refratory
JP2009531534A (en) * 2005-04-01 2009-09-03 テキント コンパニア テクニカ インテルナツィオナレ ソシエタ ペル アチオニ Method and apparatus for recovering refractory debris and ladle slag as process slag in ferrous metallurgy production at EAF and for performing related metering on a furnace for forming process slag
JP2012026028A (en) * 2010-06-23 2012-02-09 Jfe Steel Corp Desulfurization method for molten iron

Also Published As

Publication number Publication date
JPS5611367B2 (en) 1981-03-13

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