JPS63481B2 - - Google Patents

Info

Publication number
JPS63481B2
JPS63481B2 JP55146351A JP14635180A JPS63481B2 JP S63481 B2 JPS63481 B2 JP S63481B2 JP 55146351 A JP55146351 A JP 55146351A JP 14635180 A JP14635180 A JP 14635180A JP S63481 B2 JPS63481 B2 JP S63481B2
Authority
JP
Japan
Prior art keywords
slag
dephosphorization
less
concentration
cao
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.)
Expired
Application number
JP55146351A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5770219A (en
Inventor
Takashi Yamauchi
Shigeaki Maruhashi
Morihiro Hasegawa
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 Nisshin Co Ltd
Original Assignee
Nisshin Steel Co 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Priority to JP55146351A priority Critical patent/JPS5770219A/ja
Priority to SE8105969A priority patent/SE451729B/sv
Priority to US06/312,065 priority patent/US4391633A/en
Priority to GB8131428A priority patent/GB2085926B/en
Priority to FR8119676A priority patent/FR2492407B1/fr
Priority to DE3141775A priority patent/DE3141775C2/de
Priority to KR1019810004007A priority patent/KR850000556B1/ko
Publication of JPS5770219A publication Critical patent/JPS5770219A/ja
Publication of JPS63481B2 publication Critical patent/JPS63481B2/ja
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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for 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
    • C21C1/02—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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
JP55146351A 1980-10-21 1980-10-21 Method for dephosphorizing, desulfurizing and denitrifying iron alloy Granted JPS5770219A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP55146351A JPS5770219A (en) 1980-10-21 1980-10-21 Method for dephosphorizing, desulfurizing and denitrifying iron alloy
SE8105969A SE451729B (sv) 1980-10-21 1981-10-08 Forfarande for fosfor-, svavel- och kveverening av kromhaltigt rajern
US06/312,065 US4391633A (en) 1980-10-21 1981-10-16 Process for dephosphorization, desulfurization and denitrification of chromium-containing pig iron
GB8131428A GB2085926B (en) 1980-10-21 1981-10-19 Process for dephosphorization desulfurization and denitrification of chromium-containing pig iron
FR8119676A FR2492407B1 (fr) 1980-10-21 1981-10-20 Procede de dephosphoration, de desulfuration et de denitration de fonte contenant du chrome
DE3141775A DE3141775C2 (de) 1980-10-21 1981-10-21 Verfahren zur Entphosphorung, Entschwefelung und Entstickung von chromhaltigem Roheisen
KR1019810004007A KR850000556B1 (ko) 1980-10-21 1981-10-21 크롬 함유선철의 탈인, 탈황, 탈질소 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146351A JPS5770219A (en) 1980-10-21 1980-10-21 Method for dephosphorizing, desulfurizing and denitrifying iron alloy

Publications (2)

Publication Number Publication Date
JPS5770219A JPS5770219A (en) 1982-04-30
JPS63481B2 true JPS63481B2 (en]) 1988-01-07

Family

ID=15405740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146351A Granted JPS5770219A (en) 1980-10-21 1980-10-21 Method for dephosphorizing, desulfurizing and denitrifying iron alloy

Country Status (7)

Country Link
US (1) US4391633A (en])
JP (1) JPS5770219A (en])
KR (1) KR850000556B1 (en])
DE (1) DE3141775C2 (en])
FR (1) FR2492407B1 (en])
GB (1) GB2085926B (en])
SE (1) SE451729B (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0256376U (en]) * 1988-10-18 1990-04-24

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151416A (ja) * 1982-03-03 1983-09-08 Sumitomo Metal Ind Ltd クロムを含む溶融鉄合金の脱燐・脱硫方法
JPS5947316A (ja) * 1982-09-09 1984-03-17 Sumitomo Metal Ind Ltd クロムを含む溶融鉄合金の脱燐・脱硫方法
JPS5947350A (ja) * 1982-09-09 1984-03-17 Sumitomo Metal Ind Ltd クロムを含む溶融鉄合金の脱燐・脱硫方法
JPS59211519A (ja) * 1983-05-18 1984-11-30 Nisshin Steel Co Ltd 低ｐ含クロム鋼の製造法
EP0194098B1 (en) * 1985-03-04 1989-12-20 Nippon Steel Corporation Treating agent for desulfurizing molten steels and method for treating molten steels
DE3535280A1 (de) * 1985-10-03 1987-04-09 Hoechst Ag Entschwefelungsgemisch fuer metallschmelzen, ein verfahren zu seiner herstellung und seine verwendung
US4684403A (en) * 1986-06-19 1987-08-04 Elkem Metals Company Dephosphorization process for manganese-containing alloys
US4752327A (en) * 1987-05-08 1988-06-21 Elkem Metals Company Dephosphorization process for manganese alloys
ZW18288A1 (en) * 1988-01-05 1989-04-19 Middelburg Steel & Alloys Pty Sulphur and silicon control in ferrochromium production
JPH068454B2 (ja) * 1988-02-22 1994-02-02 住友金属工業株式会社 クロムを含む溶融鉄合金の脱リン・脱硫方法
JPH07100807B2 (ja) * 1988-02-24 1995-11-01 川崎製鉄株式会社 低ｓ含クロム溶鉄の製造方法
JP2684113B2 (ja) * 1989-07-08 1997-12-03 日新製鋼株式会社 含クロム溶銑の脱りん法
CN1245488C (zh) * 2001-11-13 2006-03-15 北京三聚环保新材料有限公司 工业化精制液化石油气的方法
US6808550B2 (en) 2002-02-15 2004-10-26 Nucor Corporation Model-based system for determining process parameters for the ladle refinement of steel
JP4655573B2 (ja) * 2004-09-29 2011-03-23 Ｊｆｅスチール株式会社 含クロム溶銑の酸化脱りん方法
CN103160647A (zh) * 2013-02-26 2013-06-19 首钢总公司 一种炉外氧化脱磷剂及其制备、使用方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU29544A1 (en]) *
DE1927308B1 (de) * 1969-05-29 1970-11-19 Thyssen Huette Ag Anwendung der einstufigen Entphosphorung zur Herstellung eines Stahles auf das Sauerstoff-Aufblasverfahren
CH523324A (de) * 1970-02-23 1972-05-31 Iwira Internat Srl Verfahren und Mittel zur Entphosphorung von Eisen- und Stahlschmelzen
DE2019553A1 (de) * 1970-04-23 1971-11-04 Rwk Rhein Westfael Kalkwerke Verfahren zur Herstellung von Kalk-Flussmittel-Briketts fuer metallurgische Zwecke
US3695946A (en) * 1971-11-24 1972-10-03 Forges De La Loire Comp D Atel Method of manufacturing oriented grain magnetic steel sheets
DE2559188C2 (de) * 1975-01-14 1982-03-18 Inteco Internationale Technische Beratung GmbH, Bruck an der Mur Verfahren zur Entschwefelung von Stahlschmelzen
GB1517324A (en) * 1975-09-19 1978-07-12 Sumitomo Metal Ind Desulphurisation of steel
FR2366365A1 (fr) * 1976-09-30 1978-04-28 Sumitomo Metal Ind Procede de dephosphoration de la fonte liquide
JPS5477214A (en) * 1977-12-02 1979-06-20 Otani Masayasu Simultaneous dephosphorizing and desulfurizing smelting agent for molten iron alloy
JPS54131521A (en) * 1978-04-04 1979-10-12 Showa Denko Kk Antidigestive calcic smelting agent for steel
JPS55110712A (en) * 1979-02-15 1980-08-26 Kawasaki Steel Corp Desulfurizing agent for blowing-in
GB2049736B (en) * 1979-04-19 1983-02-16 Foseco Int Desulphurisation of metals
US4217134A (en) * 1979-06-13 1980-08-12 Molten Steel Products, Inc. Compositions and methods for desulphurizing molten ferrous metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0256376U (en]) * 1988-10-18 1990-04-24

Also Published As

Publication number Publication date
FR2492407B1 (fr) 1986-04-25
GB2085926A (en) 1982-05-06
KR830007852A (ko) 1983-11-07
DE3141775C2 (de) 1984-10-11
FR2492407A1 (fr) 1982-04-23
US4391633A (en) 1983-07-05
JPS5770219A (en) 1982-04-30
SE8105969L (sv) 1982-04-22
KR850000556B1 (ko) 1985-04-26
GB2085926B (en) 1984-02-08
DE3141775A1 (de) 1982-06-24
SE451729B (sv) 1987-10-26

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