JPS5635709A - Dephosphorization method of molten iron alloy - Google Patents

Dephosphorization method of molten iron alloy

Info

Publication number
JPS5635709A
JPS5635709A JP11078679A JP11078679A JPS5635709A JP S5635709 A JPS5635709 A JP S5635709A JP 11078679 A JP11078679 A JP 11078679A JP 11078679 A JP11078679 A JP 11078679A JP S5635709 A JPS5635709 A JP S5635709A
Authority
JP
Japan
Prior art keywords
molten iron
cao
flux
fluoride
iron alloy
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
JP11078679A
Other languages
Japanese (ja)
Other versions
JPS5715169B2 (en
Inventor
Ryuka Ikeda
Toru Matsuo
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 JP11078679A priority Critical patent/JPS5635709A/en
Publication of JPS5635709A publication Critical patent/JPS5635709A/en
Publication of JPS5715169B2 publication Critical patent/JPS5715169B2/ja
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (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 remove P of molten iron of particularly high Cr and Mn by adding the flux comprising iron fluoride, manganese chloride, chromium chloride, etc. and CaO to the molten iron alloy. CONSTITUTION:The contents of one or two or more kinds of the iron fluoride, manganese chloride, chromium chloride and chromium fluoride in flux are kept at such a degree at which CaO may be slagged and the content of CaO is made about 20-60% (particularly 30-50%) in wt%. The more the amount of the flux used in the molten iron, the higher the dephosphorizing capacity, but it is added at about 10-250kg per ton of molten iron in consideration for workability. These are stirred well in order to increase the efficiency of reaction with the phosphorus to be removed and the treating temperature is made 1,250-1,358 deg.C.
JP11078679A 1979-08-29 1979-08-29 Dephosphorization method of molten iron alloy Granted JPS5635709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11078679A JPS5635709A (en) 1979-08-29 1979-08-29 Dephosphorization method of molten iron alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11078679A JPS5635709A (en) 1979-08-29 1979-08-29 Dephosphorization method of molten iron alloy

Publications (2)

Publication Number Publication Date
JPS5635709A true JPS5635709A (en) 1981-04-08
JPS5715169B2 JPS5715169B2 (en) 1982-03-29

Family

ID=14544584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11078679A Granted JPS5635709A (en) 1979-08-29 1979-08-29 Dephosphorization method of molten iron alloy

Country Status (1)

Country Link
JP (1) JPS5635709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02255896A (en) * 1988-06-21 1990-10-16 Unilever Nv Purification of glyceride oil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041432A (en) * 1983-08-12 1985-03-05 ニチモウ株式会社 Net wind-up apparatus of drawing net fishing vessel
JPH0333260Y2 (en) * 1985-03-19 1991-07-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02255896A (en) * 1988-06-21 1990-10-16 Unilever Nv Purification of glyceride oil

Also Published As

Publication number Publication date
JPS5715169B2 (en) 1982-03-29

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