JPS55115912A - Molten iron desiliconizing agent - Google Patents

Molten iron desiliconizing agent

Info

Publication number
JPS55115912A
JPS55115912A JP2301579A JP2301579A JPS55115912A JP S55115912 A JPS55115912 A JP S55115912A JP 2301579 A JP2301579 A JP 2301579A JP 2301579 A JP2301579 A JP 2301579A JP S55115912 A JPS55115912 A JP S55115912A
Authority
JP
Japan
Prior art keywords
molten iron
desiliconizing agent
cao
gas
desiliconizing
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
JP2301579A
Other languages
Japanese (ja)
Inventor
Morinori Hashio
Yujo Marukawa
Yoshiyasu Shirota
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 JP2301579A priority Critical patent/JPS55115912A/en
Publication of JPS55115912A publication Critical patent/JPS55115912A/en
Pending legal-status Critical Current

Links

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To improve the desiliconization reaction efficiency of molten iron by specifying the ratios of CaO and Fe2O3 and yet limiting grain size range.
CONSTITUTION: The desiliconizing agent which is composed of CaO 20W30wt% and Fe2O3 55W80% and in which particles of grain sizes 100W300 mesh are contained more than 80% is prepared. The Fe2O3 in the components reacts with the Si in molten iron like the undermentioned reaction formula and the Fe component is recovered into the molten iron. 2/3Fe2O3+Si=SiO2+4/3Fe To use this produce, an injection method using inert gas such as N2 gas as carrier gas is most effective.
COPYRIGHT: (C)1980,JPO&Japio
JP2301579A 1979-02-28 1979-02-28 Molten iron desiliconizing agent Pending JPS55115912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2301579A JPS55115912A (en) 1979-02-28 1979-02-28 Molten iron desiliconizing agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2301579A JPS55115912A (en) 1979-02-28 1979-02-28 Molten iron desiliconizing agent

Publications (1)

Publication Number Publication Date
JPS55115912A true JPS55115912A (en) 1980-09-06

Family

ID=12098657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2301579A Pending JPS55115912A (en) 1979-02-28 1979-02-28 Molten iron desiliconizing agent

Country Status (1)

Country Link
JP (1) JPS55115912A (en)

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