JPS54100918A - Desulfurizing agent - Google Patents

Desulfurizing agent

Info

Publication number
JPS54100918A
JPS54100918A JP770878A JP770878A JPS54100918A JP S54100918 A JPS54100918 A JP S54100918A JP 770878 A JP770878 A JP 770878A JP 770878 A JP770878 A JP 770878A JP S54100918 A JPS54100918 A JP S54100918A
Authority
JP
Japan
Prior art keywords
desulfurizing agent
mixture
desulfurizing
coke
molten 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
JP770878A
Other languages
Japanese (ja)
Other versions
JPS6043884B2 (en
Inventor
Kazunari Yamada
Masahisa Iba
Yujo Marukawa
Setsuo Okamoto
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
Tokuyama Corp
Original Assignee
Sumitomo Metal Industries Ltd
Tokuyama 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 Sumitomo Metal Industries Ltd, Tokuyama Corp filed Critical Sumitomo Metal Industries Ltd
Priority to JP770878A priority Critical patent/JPS6043884B2/en
Publication of JPS54100918A publication Critical patent/JPS54100918A/en
Publication of JPS6043884B2 publication Critical patent/JPS6043884B2/en
Expired 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
    • C21C1/025—Agents used for 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:As a molten iron desulfurizing agent to be used outside furnace, a mixture of soda ash and coke powder is prepared, the mixture being used in reducing desulfurizer atmosphere to enhance desulfurizing effect, and in oxygen blow smelting process to prevent oxidized consuption of Si heat source material. CONSTITUTION:Molten iron is desulfurized outside furnace using pouring ladel, etc., prior to oxygen blow smelting of iron to steel. In this process, as a desulfurizing agent, soda ash is used with coke powder, which is mixed into the soda ash in an amount such that the ratio of Na2CO3 in the ash to C in the coke should be 1/3 to 3. This mixture is blended with 5% of kerosine to be molded into pellet form of 10 to 50 mm diameter. When these pellets are used as desulfurizing agent, coke and Na2CO3 react to produce CO gas which is a reducing atmosphere to enhance desulfurizing efficiency. In addition, Si oxidation in molten iron is prevented to the effect that in steel converter oxygen blow smelting, Si heat source consumption is minimized.
JP770878A 1978-01-26 1978-01-26 Desulfurization agent Expired JPS6043884B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP770878A JPS6043884B2 (en) 1978-01-26 1978-01-26 Desulfurization agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP770878A JPS6043884B2 (en) 1978-01-26 1978-01-26 Desulfurization agent

Publications (2)

Publication Number Publication Date
JPS54100918A true JPS54100918A (en) 1979-08-09
JPS6043884B2 JPS6043884B2 (en) 1985-10-01

Family

ID=11673232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP770878A Expired JPS6043884B2 (en) 1978-01-26 1978-01-26 Desulfurization agent

Country Status (1)

Country Link
JP (1) JPS6043884B2 (en)

Also Published As

Publication number Publication date
JPS6043884B2 (en) 1985-10-01

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