JPS56146811A - Dephosphorizing method for molten steel - Google Patents

Dephosphorizing method for molten steel

Info

Publication number
JPS56146811A
JPS56146811A JP4812280A JP4812280A JPS56146811A JP S56146811 A JPS56146811 A JP S56146811A JP 4812280 A JP4812280 A JP 4812280A JP 4812280 A JP4812280 A JP 4812280A JP S56146811 A JPS56146811 A JP S56146811A
Authority
JP
Japan
Prior art keywords
molten steel
gas
temp
sio
flux
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
JP4812280A
Other languages
Japanese (ja)
Other versions
JPS6036448B2 (en
Inventor
Kiyomi Taguchi
Masayuki Hanmiyo
Masaru Ishikawa
Haruyoshi Tanabe
Kenzo Yamada
Tsutomu Usui
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP55048122A priority Critical patent/JPS6036448B2/en
Publication of JPS56146811A publication Critical patent/JPS56146811A/en
Publication of JPS6036448B2 publication Critical patent/JPS6036448B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

PURPOSE: To stably dephosphorize molten steel with no generation of white smoke and a very little drop in the temp. by adding alkali silicate as a flux to the molten steel and blowing a gas.
CONSTITUTION: Sodium silicate consisting of ≤75% Na2O and ≥25% SiO2 or sodium metasilicate consisting of 50% Na2O and 50% SiO2 is added to molten steel as a flux for the steel by ≤ about 30kg/t. An inert gas, oxygen, CO2 or other gas contg. little imprities such as S is then blown through a lance to agitate the molten steel. Thus, the molten steel is dephosphorized at a superior dephosphorization rate with no generation of white smoke unlike the use of Na2CO3 or the like as a dephosphorizer and a little drop in the temp.
COPYRIGHT: (C)1981,JPO&Japio
JP55048122A 1980-04-14 1980-04-14 Method for dephosphorizing molten steel Expired JPS6036448B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55048122A JPS6036448B2 (en) 1980-04-14 1980-04-14 Method for dephosphorizing molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55048122A JPS6036448B2 (en) 1980-04-14 1980-04-14 Method for dephosphorizing molten steel

Publications (2)

Publication Number Publication Date
JPS56146811A true JPS56146811A (en) 1981-11-14
JPS6036448B2 JPS6036448B2 (en) 1985-08-20

Family

ID=12794515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55048122A Expired JPS6036448B2 (en) 1980-04-14 1980-04-14 Method for dephosphorizing molten steel

Country Status (1)

Country Link
JP (1) JPS6036448B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162215A (en) * 1983-03-05 1984-09-13 Nippon Steel Corp Treatment of molten steel under pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162215A (en) * 1983-03-05 1984-09-13 Nippon Steel Corp Treatment of molten steel under pressure

Also Published As

Publication number Publication date
JPS6036448B2 (en) 1985-08-20

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