JPS5594414A - Desiliconization method of molten metal - Google Patents

Desiliconization method of molten metal

Info

Publication number
JPS5594414A
JPS5594414A JP255979A JP255979A JPS5594414A JP S5594414 A JPS5594414 A JP S5594414A JP 255979 A JP255979 A JP 255979A JP 255979 A JP255979 A JP 255979A JP S5594414 A JPS5594414 A JP S5594414A
Authority
JP
Japan
Prior art keywords
slag
molten iron
desiliconization
molten
refining
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
JP255979A
Other languages
Japanese (ja)
Inventor
Satomi Yamamoto
Masataka Yoshii
Yozo Fujikake
Shoichi Sakaguchi
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP255979A priority Critical patent/JPS5594414A/en
Publication of JPS5594414A publication Critical patent/JPS5594414A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02W30/54—

Landscapes

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

Abstract

PURPOSE: To improve the yield of molten iron at the desiliconization by using the insoluble residues of the time when the slag at the oxidation refining of molten metal composed primarily of alkali metal compounds is treated with water, as the slag forming agent for desiliconization of molten metal.
CONSTITUTION: Desulfurization and dephosphorization refining of molten iron are accomplished by the slag using alkali metal compounds such as Na2CO3. The slag formed at this time is water soluble. It is leached by water to recover Na, etc. and is regenerated as the raw material for refining slag. Since the residues remained at this time contain Na, Fe, Mn, Si, etc., they are dried and are used as the slag for desiliconization prerefining of molten iron. This improves the fluidity of the slag, accelerates the sedimentation of the particle iron interposing in the slag into molten iron and improves the yield of molten iron.
COPYRIGHT: (C)1980,JPO&Japio
JP255979A 1979-01-12 1979-01-12 Desiliconization method of molten metal Pending JPS5594414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP255979A JPS5594414A (en) 1979-01-12 1979-01-12 Desiliconization method of molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP255979A JPS5594414A (en) 1979-01-12 1979-01-12 Desiliconization method of molten metal

Publications (1)

Publication Number Publication Date
JPS5594414A true JPS5594414A (en) 1980-07-17

Family

ID=11532725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP255979A Pending JPS5594414A (en) 1979-01-12 1979-01-12 Desiliconization method of molten metal

Country Status (1)

Country Link
JP (1) JPS5594414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735604A (en) * 1980-08-13 1982-02-26 Sumitomo Metal Ind Ltd Pretreatment of hot iron
JPH0488740U (en) * 1990-04-10 1992-07-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735604A (en) * 1980-08-13 1982-02-26 Sumitomo Metal Ind Ltd Pretreatment of hot iron
JPH0488740U (en) * 1990-04-10 1992-07-31

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