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FR2171409A1 - Refining of iron and steel - use of a red mud based flux - Google Patents

Refining of iron and steel - use of a red mud based flux

Info

Publication number
FR2171409A1
FR2171409A1 FR7304766A FR7304766A FR2171409A1 FR 2171409 A1 FR2171409 A1 FR 2171409A1 FR 7304766 A FR7304766 A FR 7304766A FR 7304766 A FR7304766 A FR 7304766A FR 2171409 A1 FR2171409 A1 FR 2171409A1
Authority
FR
France
Prior art keywords
red mud
steel
pref
refining
iron
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
FR7304766A
Other languages
French (fr)
Other versions
FR2171409B1 (en
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.)
Sojitz Corp
Original Assignee
Nissho Iwai 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 Nissho Iwai Corp filed Critical Nissho Iwai Corp
Publication of FR2171409A1 publication Critical patent/FR2171409A1/en
Application granted granted Critical
Publication of FR2171409B1 publication Critical patent/FR2171409B1/fr
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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A flux based on red mud can be used to dephosphorise steel more efficiently than conventional fluxes. It will also desulphurises and decarbonise. The material contains red mud from Al prodn. adjusted by small additions to contain 20-45 pref. 40-45% Al2O3; 15-30 pref. 20-25% Fe2O3; 7-12 pref. 10-12% SiO2; 3-10% CaO balance pitch binder 3-4% and heating losses. The material is briquetted by addition of water glass solns. and pressing. After drying at 120-170 degrees C it can be added to the refining vessel and produces up to 75+% dephosphorisation.
FR7304766A 1972-02-10 1973-02-09 Refining of iron and steel - use of a red mud based flux Granted FR2171409A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47014500A JPS5140851B2 (en) 1972-02-10 1972-02-10

Publications (2)

Publication Number Publication Date
FR2171409A1 true FR2171409A1 (en) 1973-09-21
FR2171409B1 FR2171409B1 (en) 1977-04-22

Family

ID=11862767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7304766A Granted FR2171409A1 (en) 1972-02-10 1973-02-09 Refining of iron and steel - use of a red mud based flux

Country Status (5)

Country Link
JP (1) JPS5140851B2 (en)
AU (1) AU5195873A (en)
DE (1) DE2306804A1 (en)
FR (1) FR2171409A1 (en)
IT (1) IT978692B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665183A1 (en) * 1990-07-26 1992-01-31 Csepel Muevek Femmueve Fire-refining process and slag mixture for its use
WO2009056863A3 (en) * 2007-11-01 2009-07-30 Advanced Mineral Recovery Tech Method of and system for processing red mud

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630368B2 (en) * 1975-02-26 1981-07-14
JPS5399852U (en) * 1977-01-17 1978-08-12
CN109825673A (en) * 2019-03-26 2019-05-31 山东钢铁股份有限公司 A kind of converter dephosphorization agent and its application

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121366A (en) * 1954-04-27 1956-08-13 Mannesmann Ag Method for using red mud during wind refining, for example in the Thomas converter
GB769957A (en) * 1954-04-27 1957-03-13 Mannesmann Ag Improvements in or relating to the manufacture of steel
FR1134330A (en) * 1954-06-04 1957-04-10 Mannesmann Ag Wind refining process for Thomas iron, in particular using a converter, with the simultaneous production of high-value Thomas slag
US2790712A (en) * 1955-04-26 1957-04-30 Mannesmann Ag Process for refining iron

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121366A (en) * 1954-04-27 1956-08-13 Mannesmann Ag Method for using red mud during wind refining, for example in the Thomas converter
GB769957A (en) * 1954-04-27 1957-03-13 Mannesmann Ag Improvements in or relating to the manufacture of steel
FR1134330A (en) * 1954-06-04 1957-04-10 Mannesmann Ag Wind refining process for Thomas iron, in particular using a converter, with the simultaneous production of high-value Thomas slag
US2790712A (en) * 1955-04-26 1957-04-30 Mannesmann Ag Process for refining iron

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665183A1 (en) * 1990-07-26 1992-01-31 Csepel Muevek Femmueve Fire-refining process and slag mixture for its use
BE1006534A5 (en) * 1990-07-26 1994-10-11 Csepel Muevek Femmueve Method of refining fire in oven coating basic, copper and fusion of first fall copper and zinc-containing lead, and slag mixture of training for implementation of this refining.
WO2009056863A3 (en) * 2007-11-01 2009-07-30 Advanced Mineral Recovery Tech Method of and system for processing red mud

Also Published As

Publication number Publication date
JPS5140851B2 (en) 1976-11-06
AU5195873A (en) 1974-08-08
DE2306804A1 (en) 1973-09-06
FR2171409B1 (en) 1977-04-22
IT978692B (en) 1974-09-20
JPS4883022A (en) 1973-11-06

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Legal Events

Date Code Title Description
ST Notification of lapse