FR2450278A1 - Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle - Google Patents

Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle

Info

Publication number
FR2450278A1
FR2450278A1 FR7905511A FR7905511A FR2450278A1 FR 2450278 A1 FR2450278 A1 FR 2450278A1 FR 7905511 A FR7905511 A FR 7905511A FR 7905511 A FR7905511 A FR 7905511A FR 2450278 A1 FR2450278 A1 FR 2450278A1
Authority
FR
France
Prior art keywords
magnesium
ladle
iron
rate
speed
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
FR7905511A
Other languages
French (fr)
Other versions
FR2450278B1 (en
Inventor
N A Voronova
A F Shevchenko
M L Lavrentiev
I F Gorbenko
N P Ostapchuk
A N Malkov
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.)
Institute Chernoi Metallurgii
Original Assignee
Institute Chernoi Metallurgii
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 Institute Chernoi Metallurgii filed Critical Institute Chernoi Metallurgii
Priority to FR7905511A priority Critical patent/FR2450278A1/en
Publication of FR2450278A1 publication Critical patent/FR2450278A1/en
Application granted granted Critical
Publication of FR2450278B1 publication Critical patent/FR2450278B1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C1/10—Making spheroidal graphite cast-iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

The magnesium consists of powder, granules, etc., which is injected into the melt through a tuyere with an outlet and which widens conically outwards. The magnesium is injected into the melt at a speed of 0.04-10.0 m/second, and at a rate of 0.2-1.8 grams/second and per tonne of molten iron. The rate and speed of the addn. of Mg prevents molten iron being driven out of the ladle when more than 100 tonnes of iron are being treated.
FR7905511A 1979-03-02 1979-03-02 Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle Granted FR2450278A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7905511A FR2450278A1 (en) 1979-03-02 1979-03-02 Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905511A FR2450278A1 (en) 1979-03-02 1979-03-02 Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle

Publications (2)

Publication Number Publication Date
FR2450278A1 true FR2450278A1 (en) 1980-09-26
FR2450278B1 FR2450278B1 (en) 1983-04-29

Family

ID=9222707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905511A Granted FR2450278A1 (en) 1979-03-02 1979-03-02 Ladle treatment of blast furnace iron by injection of magnesium - esp. for sulphur removal, where rate and speed of magnesium addn. is controlled to prevent iron splashing out of ladle

Country Status (1)

Country Link
FR (1) FR2450278A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514368A1 (en) * 1981-10-12 1983-04-15 Siderurgie Fse Inst Rech Pig iron desulphurisation by magnesium - after deoxidation to reduce magnesium consumption, pref. using aluminium
WO1995027801A1 (en) * 1994-04-07 1995-10-19 Ettore Bennati Vaporisation bell for metallurgical treatment in molten baths

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2227326A1 (en) * 1973-08-24 1974-11-22 Inst Chernoi Metallurgii
FR2296692A1 (en) * 1974-12-31 1976-07-30 Inst Chernoi Metallurgii Refining pig iron in the ladle with magnesium - using particulate magnesium in a hydrocarbon gas as carrier
FR2392127A1 (en) * 1977-05-26 1978-12-22 Rustavsky Metall Zavod Treatment of iron melt with powdered material - added using carrier gas via tuyere located in furnace lining

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2227326A1 (en) * 1973-08-24 1974-11-22 Inst Chernoi Metallurgii
FR2296692A1 (en) * 1974-12-31 1976-07-30 Inst Chernoi Metallurgii Refining pig iron in the ladle with magnesium - using particulate magnesium in a hydrocarbon gas as carrier
FR2392127A1 (en) * 1977-05-26 1978-12-22 Rustavsky Metall Zavod Treatment of iron melt with powdered material - added using carrier gas via tuyere located in furnace lining

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514368A1 (en) * 1981-10-12 1983-04-15 Siderurgie Fse Inst Rech Pig iron desulphurisation by magnesium - after deoxidation to reduce magnesium consumption, pref. using aluminium
WO1995027801A1 (en) * 1994-04-07 1995-10-19 Ettore Bennati Vaporisation bell for metallurgical treatment in molten baths

Also Published As

Publication number Publication date
FR2450278B1 (en) 1983-04-29

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Legal Events

Date Code Title Description
ST Notification of lapse