JPS57120640A - Treatment of blast furnace dust - Google Patents

Treatment of blast furnace dust

Info

Publication number
JPS57120640A
JPS57120640A JP479981A JP479981A JPS57120640A JP S57120640 A JPS57120640 A JP S57120640A JP 479981 A JP479981 A JP 479981A JP 479981 A JP479981 A JP 479981A JP S57120640 A JPS57120640 A JP S57120640A
Authority
JP
Japan
Prior art keywords
slag
dust
blast furnace
furnace dust
molten slag
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
JP479981A
Other languages
Japanese (ja)
Inventor
Katsuji Yamamoto
Akio Katsu
Wataru Tashiro
Takeshi Nakanishi
Genzaburo Harada
Takuma Tsubura
Masao Tomari
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.)
NAKAYAMA SEIKOSHO KK
Nippon Jiryoku Senko Co Ltd
Nakayama Steel Works Ltd
Original Assignee
NAKAYAMA SEIKOSHO KK
Nippon Jiryoku Senko Co Ltd
Nakayama Steel Works 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 NAKAYAMA SEIKOSHO KK, Nippon Jiryoku Senko Co Ltd, Nakayama Steel Works Ltd filed Critical NAKAYAMA SEIKOSHO KK
Priority to JP479981A priority Critical patent/JPS57120640A/en
Publication of JPS57120640A publication Critical patent/JPS57120640A/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
    • 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PURPOSE:To recover volatilized Zn, Pb, etc. and to make harmful matter in blast furnace dust harmless by adding the dust to molten slag in an electric furnace together with one or more among cinder, red mud, slag, clay and slate. CONSTITUTION:Blast furnace dust is added to molten slag in an electric furnace together with one or more among cinder, red mud, slag, clay and slate while causing convection to the molten slag by blowing a bubbling gas. Volatilized metallic oxides, chiefly Zn and Pb oxides are recovered with a filter. Thus, valuable metals such as Zn and Pb are recovered efficiently, and since the slag treated with the dust is made harmless and unslakable, it can be utilized effectively as a roadbed material, etc.
JP479981A 1981-01-14 1981-01-14 Treatment of blast furnace dust Pending JPS57120640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP479981A JPS57120640A (en) 1981-01-14 1981-01-14 Treatment of blast furnace dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP479981A JPS57120640A (en) 1981-01-14 1981-01-14 Treatment of blast furnace dust

Publications (1)

Publication Number Publication Date
JPS57120640A true JPS57120640A (en) 1982-07-27

Family

ID=11593814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP479981A Pending JPS57120640A (en) 1981-01-14 1981-01-14 Treatment of blast furnace dust

Country Status (1)

Country Link
JP (1) JPS57120640A (en)

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