JPS5576005A - Desulfurizing method of molten iron - Google Patents

Desulfurizing method of molten iron

Info

Publication number
JPS5576005A
JPS5576005A JP15026378A JP15026378A JPS5576005A JP S5576005 A JPS5576005 A JP S5576005A JP 15026378 A JP15026378 A JP 15026378A JP 15026378 A JP15026378 A JP 15026378A JP S5576005 A JPS5576005 A JP S5576005A
Authority
JP
Japan
Prior art keywords
molten iron
impeller
hydrocarbon
base gas
desulfurizing agent
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
JP15026378A
Other languages
Japanese (ja)
Inventor
Akira Kawarada
Tatsuyoshi Chino
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP15026378A priority Critical patent/JPS5576005A/en
Publication of JPS5576005A publication Critical patent/JPS5576005A/en
Pending 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To achieve the improvement in desulfurization efficiency and the reduction of desulfurizing agent original units by using the desulfurizing agent composed primarily of CaO, blowing hydrocarbon-base gas into a molten iron bath under stirring of molten iron with a rotary vane and maintaining the stirring atmosphere at reducing characteristic. CONSTITUTION:First, the desulfurizing agent 7 composed primarily of CaO is added to molten iron 6. Next, hydrocarbon-base gas is supplied by way of a hollow shaft 1 and an impeller 3 is gradually lowered to be dipped into the molten iron 6, after which the impeller 6 is revolved, whereby the desulfurization is executed. Throughout this time, the blowing of the hydrocarbon-base gas is continued. When the desulfurization is completed, first the revolution of the impeller 3 is stopped to let the impeller 3 rise. After this, the hydrocarbon-base gas is the shaft 1 is purged by inert gas such as N2 or Ar.
JP15026378A 1978-12-05 1978-12-05 Desulfurizing method of molten iron Pending JPS5576005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15026378A JPS5576005A (en) 1978-12-05 1978-12-05 Desulfurizing method of molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15026378A JPS5576005A (en) 1978-12-05 1978-12-05 Desulfurizing method of molten iron

Publications (1)

Publication Number Publication Date
JPS5576005A true JPS5576005A (en) 1980-06-07

Family

ID=15493108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15026378A Pending JPS5576005A (en) 1978-12-05 1978-12-05 Desulfurizing method of molten iron

Country Status (1)

Country Link
JP (1) JPS5576005A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61210110A (en) * 1985-03-14 1986-09-18 Nippon Kokan Kk <Nkk> Method for removing sulfur from hot metal in the middle of the tap hole
EP1067202A3 (en) * 1999-07-05 2001-06-13 Kawasaki Steel Corporation Method of desulfurizing molten iron alloy
KR100398399B1 (en) * 1999-12-07 2003-09-19 주식회사 포스코 Method for enhancing desulfurization efficiency
JP2011006761A (en) * 2009-06-29 2011-01-13 Jfe Steel Corp Method for desulfurizing molten iron
KR101412124B1 (en) * 2012-09-27 2014-06-26 현대제철 주식회사 Converter apparatus
US11679345B2 (en) 2020-03-19 2023-06-20 Sudhin Biopharma Particle settling devices

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61210110A (en) * 1985-03-14 1986-09-18 Nippon Kokan Kk <Nkk> Method for removing sulfur from hot metal in the middle of the tap hole
EP1067202A3 (en) * 1999-07-05 2001-06-13 Kawasaki Steel Corporation Method of desulfurizing molten iron alloy
US6328784B1 (en) * 1999-07-05 2001-12-11 Kawasaki Corporation Method of desulfurizing molten iron alloy
KR100600237B1 (en) * 1999-07-05 2006-07-13 제이에프이 스틸 가부시키가이샤 Method of desulfurizing molten iron alloy
KR100398399B1 (en) * 1999-12-07 2003-09-19 주식회사 포스코 Method for enhancing desulfurization efficiency
JP2011006761A (en) * 2009-06-29 2011-01-13 Jfe Steel Corp Method for desulfurizing molten iron
KR101412124B1 (en) * 2012-09-27 2014-06-26 현대제철 주식회사 Converter apparatus
US11679345B2 (en) 2020-03-19 2023-06-20 Sudhin Biopharma Particle settling devices

Similar Documents

Publication Publication Date Title
JPS5576005A (en) Desulfurizing method of molten iron
JPS526739A (en) Water-based coating composition
JPS5387907A (en) Repairing method for blast furnace
JPS5268074A (en) Desulfurization method with ammonia
JPS5328015A (en) Desulfurizing method of molten pig iron
JPS5345693A (en) Desulfurizing method for hot iron at the time of discharge from blast furnace
Adams Production of Basic Oxygen Steels with Controlled High and Low Levels of Nitrogen
JPS53106315A (en) Charging method for iron ores to converter
JPS5238097A (en) Manufacture of vinegar
JPS5224982A (en) Exhaust gas desulfurization process
JPS5328963A (en) Air circulating aeration method
JPS5253715A (en) Converter steel making method
JPS5210912A (en) Method of discharging gas from tank
JPS52116703A (en) Treatment of waste gas of sintering
JPS5239510A (en) Method of operating soaking pits
JPS52110202A (en) Treatment of molten metal
JPS5345706A (en) Starting gear for automatic controller of wind quantity
JPS5428219A (en) Slag discharge preventing method at the time of converter tapping
JPS51151996A (en) Separate bu ilding by foregoing manufacture of part of hull
JPS51149816A (en) Operating method of blast furnace
JPS51116598A (en) Building method for scaffold in ship
JPS5311113A (en) Desulfurization method
GB1094345A (en) Method for correcting the temperature of steel at the end of the refining process
JPS5238417A (en) Refining method of low phosphor and low hydrogen content steel
JPS51145408A (en) An automatic setting apparatus for lower limit of skirt in non-combust ion type converter exhaust gas treatment facilities