JPS572808A - Production of blast furnace slag having self-powdering characteristic - Google Patents

Production of blast furnace slag having self-powdering characteristic

Info

Publication number
JPS572808A
JPS572808A JP7540180A JP7540180A JPS572808A JP S572808 A JPS572808 A JP S572808A JP 7540180 A JP7540180 A JP 7540180A JP 7540180 A JP7540180 A JP 7540180A JP S572808 A JPS572808 A JP S572808A
Authority
JP
Japan
Prior art keywords
blast furnace
furnace slag
contg
materials
self
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.)
Pending
Application number
JP7540180A
Other languages
Japanese (ja)
Inventor
Noboru Sugiyama
Masaaki Hasebe
Takeshi Ogasawara
Takahisa Koshida
Takero Ito
Yoshio Aso
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.)
JFE Steel Corp
JFE Mineral Co Ltd
Original Assignee
Kawatetsu Mining Co Ltd
Kawasaki Steel Corp
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 Kawatetsu Mining Co Ltd, Kawasaki Steel Corp filed Critical Kawatetsu Mining Co Ltd
Priority to JP7540180A priority Critical patent/JPS572808A/en
Publication of JPS572808A publication Critical patent/JPS572808A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/028—Methods of cooling or quenching molten slag with the permanent addition of cooled slag or other solids
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/07—Receptacle features where the slag is treated open to atmosphere
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE:To produce titled slag suitable as a raw material for various kinds of ceramics by adding and mixing iron oxide or iron-contg. materials to and with blast furnace slag in a molten state, and slowly cooling the same at a rate below specified. CONSTITUTION:Iron oxide or iron-contg. materials and further, if necessary, either one or both of alkali-contg. materials and sulfur-contg. materials are added and mixed to and with blast furnace slag in a molten state. The molten slag added with these is cooled down to 500 deg.C at <=300 deg.C/Hr average cooling rates. Then, the blast furnace slag having self-powdering characteristic, that is, the property that it easily powders by itself when put in contact with water is produced.
JP7540180A 1980-06-04 1980-06-04 Production of blast furnace slag having self-powdering characteristic Pending JPS572808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7540180A JPS572808A (en) 1980-06-04 1980-06-04 Production of blast furnace slag having self-powdering characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7540180A JPS572808A (en) 1980-06-04 1980-06-04 Production of blast furnace slag having self-powdering characteristic

Publications (1)

Publication Number Publication Date
JPS572808A true JPS572808A (en) 1982-01-08

Family

ID=13575111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7540180A Pending JPS572808A (en) 1980-06-04 1980-06-04 Production of blast furnace slag having self-powdering characteristic

Country Status (1)

Country Link
JP (1) JPS572808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732631A (en) * 1985-07-19 1988-03-22 Yoshida Kogyo K.K. Method of manufacturing a tape having a series of surface-type fastener pieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732631A (en) * 1985-07-19 1988-03-22 Yoshida Kogyo K.K. Method of manufacturing a tape having a series of surface-type fastener pieces

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