BRPI0919179A2 - processo para a dessulfurização de ferro gusa fundido. - Google Patents

processo para a dessulfurização de ferro gusa fundido.

Info

Publication number
BRPI0919179A2
BRPI0919179A2 BRPI0919179A BRPI0919179A BRPI0919179A2 BR PI0919179 A2 BRPI0919179 A2 BR PI0919179A2 BR PI0919179 A BRPI0919179 A BR PI0919179A BR PI0919179 A BRPI0919179 A BR PI0919179A BR PI0919179 A2 BRPI0919179 A2 BR PI0919179A2
Authority
BR
Brazil
Prior art keywords
desulphurization
cast iron
cast
iron
Prior art date
Application number
BRPI0919179A
Other languages
English (en)
Inventor
Hisashi Yagi
Masanori Kumakura
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BRPI0919179A2 publication Critical patent/BRPI0919179A2/pt
Publication of BRPI0919179B1 publication Critical patent/BRPI0919179B1/pt

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
    • C21C7/064—Dephosphorising; Desulfurising
    • C21C7/0645—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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • 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
    • C21C7/072—Treatment with gases

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)
BRPI0919179-8A 2008-09-05 2009-09-07 Process for the dusulfurization of fused gas iron. BRPI0919179B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008-228502 2008-09-05
JP2008228502A JP4445564B2 (ja) 2008-09-05 2008-09-05 溶銑の脱硫方法
PCT/JP2009/004414 WO2010026775A1 (ja) 2008-09-05 2009-09-07 溶銑の脱硫方法

Publications (2)

Publication Number Publication Date
BRPI0919179A2 true BRPI0919179A2 (pt) 2015-12-15
BRPI0919179B1 BRPI0919179B1 (pt) 2017-11-21

Family

ID=41796954

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0919179-8A BRPI0919179B1 (pt) 2008-09-05 2009-09-07 Process for the dusulfurization of fused gas iron.

Country Status (5)

Country Link
JP (1) JP4445564B2 (pt)
KR (1) KR101260149B1 (pt)
CN (1) CN102144038B (pt)
BR (1) BRPI0919179B1 (pt)
WO (1) WO2010026775A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5493737B2 (ja) * 2009-11-10 2014-05-14 新日鐵住金株式会社 溶銑の脱硫方法
JP6847124B2 (ja) 2016-03-21 2021-03-24 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ミラーコンポーネント用の適応照明システム、及び適応照明システムを制御する方法
JP6743915B2 (ja) * 2017-01-19 2020-08-19 Ｊｆｅスチール株式会社 溶鋼の脱硫処理方法及び脱硫剤

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110711A (en) * 1979-02-16 1980-08-26 Nippon Steel Corp Desulfurization of molten pig iron
JPH06330128A (ja) * 1993-05-17 1994-11-29 Kawasaki Steel Corp 溶銑の脱硫剤及びそれを用いた脱硫方法
CN1030532C (zh) * 1994-01-08 1995-12-20 中国冶金技术公司 使用铝渣进行的钢铁冶炼方法
JP4344070B2 (ja) * 2000-06-07 2009-10-14 新日本製鐵株式会社 密閉型フリーボードを用いた溶銑脱硫方法

Also Published As

Publication number Publication date
JP4445564B2 (ja) 2010-04-07
JP2010059518A (ja) 2010-03-18
WO2010026775A1 (ja) 2010-03-11
CN102144038A (zh) 2011-08-03
KR20110049846A (ko) 2011-05-12
KR101260149B1 (ko) 2013-05-02
CN102144038B (zh) 2013-06-19
BRPI0919179B1 (pt) 2017-11-21

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted
B25D Requested change of name of applicant approved