JPS552758A - Desulfurizing agent for molten iron - Google Patents

Desulfurizing agent for molten iron

Info

Publication number
JPS552758A
JPS552758A JP7535978A JP7535978A JPS552758A JP S552758 A JPS552758 A JP S552758A JP 7535978 A JP7535978 A JP 7535978A JP 7535978 A JP7535978 A JP 7535978A JP S552758 A JPS552758 A JP S552758A
Authority
JP
Japan
Prior art keywords
alloy
cao
molten iron
desulfurizing
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
JP7535978A
Other languages
Japanese (ja)
Inventor
Shinichi Kaneko
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP7535978A priority Critical patent/JPS552758A/en
Publication of JPS552758A publication Critical patent/JPS552758A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising

Landscapes

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

Abstract

PURPOSE:The desulfurizing agent for the molten iron, which develops the excellent desulfurizing capacity and the good slag formability, and prevents the operational troubles due to the bridging phenomenon and the plugging of runners within the treating vessel, prepared by blending a specified amount of Al-Mg alloy with CaO. CONSTITUTION:5-30% Al-Mg alloy is blended with 70-95wt% CaO,which is then pulverized into the particle size smaller than about 0.105mm. The adhering moisture of the Al-Mg alloy is perfectly removed prior to use. Al included in the blended Al-Mg alloy bonds with O2 of the molten iron, and promotes the deoxidizing action; and Mg bonds with S and causes the desulfurizing reaction. The desulfurizing speed due to Mg is increased by the deoxidizing action due to Al; and Mg shows the desulfurization promoting effect, effective against CaO to be main desulfurizing agent. Moreover, the product Al2O3 of the desulfurization reacts on CaO forming the slag of low melting point, and makes good the flowability; hereby, the diffusion between the molten iron and the slag is made positive.
JP7535978A 1978-06-23 1978-06-23 Desulfurizing agent for molten iron Pending JPS552758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7535978A JPS552758A (en) 1978-06-23 1978-06-23 Desulfurizing agent for molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7535978A JPS552758A (en) 1978-06-23 1978-06-23 Desulfurizing agent for molten iron

Publications (1)

Publication Number Publication Date
JPS552758A true JPS552758A (en) 1980-01-10

Family

ID=13573942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7535978A Pending JPS552758A (en) 1978-06-23 1978-06-23 Desulfurizing agent for molten iron

Country Status (1)

Country Link
JP (1) JPS552758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256091A1 (en) * 1986-01-27 1988-02-24 The Dow Chemical Company Magnesium calcium oxide composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256091A1 (en) * 1986-01-27 1988-02-24 The Dow Chemical Company Magnesium calcium oxide composite

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