JPS55119137A - Recovery method for base metal from desulfurized slag of molten iron - Google Patents

Recovery method for base metal from desulfurized slag of molten iron

Info

Publication number
JPS55119137A
JPS55119137A JP2471979A JP2471979A JPS55119137A JP S55119137 A JPS55119137 A JP S55119137A JP 2471979 A JP2471979 A JP 2471979A JP 2471979 A JP2471979 A JP 2471979A JP S55119137 A JPS55119137 A JP S55119137A
Authority
JP
Japan
Prior art keywords
slag
desulfurized
base metal
molten
pot
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
JP2471979A
Other languages
Japanese (ja)
Other versions
JPS5653616B2 (en
Inventor
Takeshi Katogi
Keiichi Sasaki
Toshikuni Kitaura
Kenichi Kinoshita
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2471979A priority Critical patent/JPS55119137A/en
Publication of JPS55119137A publication Critical patent/JPS55119137A/en
Publication of JPS5653616B2 publication Critical patent/JPS5653616B2/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
    • 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

  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: To precipitate base metal contained in desulfurized slag of molten iron to the bottom of a slag pot by means of specific gravity, and to separate and recover the base metal easily, by a method wherein the desulfurized slag is poured into the slag pot into which molten converter slag of twice or more is admitted.
CONSTITUTION: Molten iron discharged from a blast furnace is desulfurized outside the furnace by means of soda ash. Pig iron base metal of approximate 10% is contained in desulfurized slag formed at that time. Molten converter slag twice or more as much as the desulfurized slag to be treated is beforehand introduced into another slag pot, and the desulfurized slag is poured into the molten slag. Since the converter slag is high in temperature at approximate 300°C and twice or more in quantity as compared to the desulfurized slag, the desulfurized slag is mixed with the converter slag, and a molten condition is held for one hour or more. Thus, the base metal which is contained precipitates at the bottom of the slag pot by means of specific gravity, and is brought to a condition that is collected to a massive shape. The mixed slag is discharged to an outdoor slag field from the slag pot, solidified by pouring cold water, and crushed, and base metal lumps are separated by means of a magnet, etc. and recovered.
COPYRIGHT: (C)1980,JPO&Japio
JP2471979A 1979-03-02 1979-03-02 Recovery method for base metal from desulfurized slag of molten iron Granted JPS55119137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2471979A JPS55119137A (en) 1979-03-02 1979-03-02 Recovery method for base metal from desulfurized slag of molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2471979A JPS55119137A (en) 1979-03-02 1979-03-02 Recovery method for base metal from desulfurized slag of molten iron

Publications (2)

Publication Number Publication Date
JPS55119137A true JPS55119137A (en) 1980-09-12
JPS5653616B2 JPS5653616B2 (en) 1981-12-19

Family

ID=12145961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2471979A Granted JPS55119137A (en) 1979-03-02 1979-03-02 Recovery method for base metal from desulfurized slag of molten iron

Country Status (1)

Country Link
JP (1) JPS55119137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014195A (en) * 2012-06-14 2013-04-03 新疆八一钢铁股份有限公司 Novel method for modification of KR desulfuration residue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014195A (en) * 2012-06-14 2013-04-03 新疆八一钢铁股份有限公司 Novel method for modification of KR desulfuration residue

Also Published As

Publication number Publication date
JPS5653616B2 (en) 1981-12-19

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