BR112019014620A2 - método de desfosforação de ferro fundido - Google Patents

método de desfosforação de ferro fundido Download PDF

Info

Publication number: BR112019014620A2
Authority: BR; Brazil
Prior art keywords: hot metal; dephosphorization; added; less; lime
Prior art date: 2017-01-18

Application number

BR112019014620A

Other languages

English (en)

Portuguese (pt)

Inventor

Mori Mikihiro

Kikuchi Naoki

Nishiguchi Noritaka

Maeda Takahiko

Ando Takuya

Nakai Yoshie

Fujii Yusuke

Original Assignee

Jfe 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.)

2017-01-18

Filing date

2018-01-10

Publication date

2020-04-14

2018-01-10 Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp

2020-04-14 Publication of BR112019014620A2 publication Critical patent/BR112019014620A2/pt

Links

238000000034 method Methods 0.000 title claims abstract description 47
229910001018 Cast iron Inorganic materials 0.000 title abstract description 7
238000007670 refining Methods 0.000 claims abstract description 54
235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 47
235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 47
239000004571 lime Substances 0.000 claims abstract description 47
239000002184 metal Substances 0.000 claims description 144
229910052751 metal Inorganic materials 0.000 claims description 144
239000003795 chemical substances by application Substances 0.000 abstract description 86
239000011148 porous material Substances 0.000 abstract 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 93
229910052760 oxygen Inorganic materials 0.000 description 93
239000001301 oxygen Substances 0.000 description 93
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 36
239000007787 solid Substances 0.000 description 34
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 28
238000006243 chemical reaction Methods 0.000 description 25
238000007664 blowing Methods 0.000 description 23
229910052698 phosphorus Inorganic materials 0.000 description 21
239000011574 phosphorus Substances 0.000 description 21
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 20
239000000292 calcium oxide Substances 0.000 description 18
235000012255 calcium oxide Nutrition 0.000 description 18
230000007423 decrease Effects 0.000 description 14
239000011261 inert gas Substances 0.000 description 13
239000002245 particle Substances 0.000 description 12
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
230000000694 effects Effects 0.000 description 11
230000000052 comparative effect Effects 0.000 description 10
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 9
229910001882 dioxygen Inorganic materials 0.000 description 9
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 8
239000007789 gas Substances 0.000 description 8
230000015572 biosynthetic process Effects 0.000 description 6
238000001816 cooling Methods 0.000 description 6
230000006872 improvement Effects 0.000 description 6
229910052742 iron Inorganic materials 0.000 description 6
235000013980 iron oxide Nutrition 0.000 description 6
229910001634 calcium fluoride Inorganic materials 0.000 description 5
238000004090 dissolution Methods 0.000 description 5
230000001737 promoting effect Effects 0.000 description 5
229910000831 Steel Inorganic materials 0.000 description 4
239000012159 carrier gas Substances 0.000 description 4
229910052681 coesite Inorganic materials 0.000 description 4
229910052906 cristobalite Inorganic materials 0.000 description 4
VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 4
239000010959 steel Substances 0.000 description 4
238000003756 stirring Methods 0.000 description 4
229910052682 stishovite Inorganic materials 0.000 description 4
239000000126 substance Substances 0.000 description 4
229910052905 tridymite Inorganic materials 0.000 description 4
230000003247 decreasing effect Effects 0.000 description 3
238000009826 distribution Methods 0.000 description 3
239000010436 fluorite Substances 0.000 description 3
230000004907 flux Effects 0.000 description 3
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
229910052753 mercury Inorganic materials 0.000 description 3
229910001392 phosphorus oxide Inorganic materials 0.000 description 3
239000004576 sand Substances 0.000 description 3
KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
238000013019 agitation Methods 0.000 description 2
WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 2
238000010586 diagram Methods 0.000 description 2
230000007613 environmental effect Effects 0.000 description 2
239000006260 foam Substances 0.000 description 2
238000002347 injection Methods 0.000 description 2
239000007924 injection Substances 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical class [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 description 2
239000000843 powder Substances 0.000 description 2
230000009257 reactivity Effects 0.000 description 2
PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
230000008901 benefit Effects 0.000 description 1
XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
238000010411 cooking Methods 0.000 description 1
238000005261 decarburization Methods 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
238000007872 degassing Methods 0.000 description 1
238000006477 desulfuration reaction Methods 0.000 description 1
230000023556 desulfurization Effects 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000001035 drying Methods 0.000 description 1
239000000428 dust Substances 0.000 description 1
239000011737 fluorine Substances 0.000 description 1
229910052731 fluorine Inorganic materials 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000012535 impurity Substances 0.000 description 1
150000002505 iron Chemical class 0.000 description 1
238000011068 loading method Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
238000010907 mechanical stirring Methods 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 description 1
239000000203 mixture Substances 0.000 description 1
230000035515 penetration Effects 0.000 description 1
230000008569 process Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
238000005245 sintering Methods 0.000 description 1
239000000243 solution Substances 0.000 description 1
238000009628 steelmaking Methods 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
-1 that is Chemical compound 0.000 description 1

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
- C21C1/02—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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/285—Plants therefor
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Life Sciences & Earth Sciences (AREA)
Botany (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)

BR112019014620A 2017-01-18 2018-01-10 método de desfosforação de ferro fundido BR112019014620A2 (pt)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2017006360		2017-01-18
PCT/JP2018/000325 WO2018135351A1 (ja)	2017-01-18	2018-01-10	溶銑の脱燐方法

Publications (1)

Publication Number	Publication Date
BR112019014620A2 true BR112019014620A2 (pt)	2020-04-14

Family

ID=62908652

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR112019014620A BR112019014620A2 (pt)	2017-01-18	2018-01-10	método de desfosforação de ferro fundido

Country Status (6)

Country	Link
JP (1)	JP6773135B2 (ja)
KR (1)	KR102260155B1 (ja)
CN (2)	CN110191968A (ja)
BR (1)	BR112019014620A2 (ja)
TW (1)	TWI664294B (ja)
WO (1)	WO2018135351A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2021014918A1 (ja) *	2019-07-22	2021-01-28	Ｊｆｅスチール株式会社	溶鉄の脱りん方法
JP7259803B2 (ja) *	2020-05-27	2023-04-18	Ｊｆｅスチール株式会社	電気炉による溶鉄の製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS57171610A (en) *	1981-04-13	1982-10-22	Nippon Steel Corp	Dephosphorizing agent for molten metal and its production
JPH05294683A (ja) *	1992-04-13	1993-11-09	Nippon Steel Corp	生石灰の製造方法
JP3239197B2 (ja)	1993-07-05	2001-12-17	新日本製鐵株式会社	転炉製鋼法
JP2000282124A (ja) *	1999-03-29	2000-10-10	Kawasaki Steel Corp	転炉スラグの改質方法及び改質スラグを用いた溶銑脱りん方法
JP2001288507A (ja)	2000-04-04	2001-10-19	Nkk Corp	低燐溶銑の製造方法
JP2004176096A (ja) *	2002-11-26	2004-06-24	Osaka Koukai Kk	一次精錬用石灰系フラックス
JP4901132B2 (ja) *	2005-05-31	2012-03-21	Ｊｆｅスチール株式会社	転炉吹錬方法及び転炉吹錬用上吹きランス
TW200730636A (en) *	2005-11-09	2007-08-16	Jef Steel Corp	Dephosphorization process of molten iron
JP4683427B2 (ja) *	2006-04-10	2011-05-18	大阪鋼灰株式会社	石灰系精錬用フラックス
JP4743078B2 (ja)	2006-10-24	2011-08-10	住友金属工業株式会社	脱燐処理後のスラグの排滓性向上方法およびそれを用いた溶銑の脱燐処理方法
JP5135836B2 (ja) *	2007-03-19	2013-02-06	Ｊｆｅスチール株式会社	溶銑の脱燐処理方法
JP5181520B2 (ja)	2007-04-16	2013-04-10	Ｊｆｅスチール株式会社	溶銑の脱燐処理方法
JP5064203B2 (ja) *	2007-12-26	2012-10-31	中山石灰工業株式会社	竪形焼成炉による塩焼き生石灰の製造法
JP2012031452A (ja) *	2010-07-29	2012-02-16	Jfe Steel Corp	溶銑の脱燐処理方法
JP5574060B2 (ja) *	2011-12-20	2014-08-20	Ｊｆｅスチール株式会社	転炉製鋼方法

2018
- 2018-01-10 WO PCT/JP2018/000325 patent/WO2018135351A1/ja active Application Filing
- 2018-01-10 CN CN201880007485.3A patent/CN110191968A/zh active Pending
- 2018-01-10 BR BR112019014620A patent/BR112019014620A2/pt active IP Right Grant
- 2018-01-10 CN CN202210118003.XA patent/CN114457204A/zh active Pending
- 2018-01-10 KR KR1020197020970A patent/KR102260155B1/ko active IP Right Grant
- 2018-01-10 JP JP2018563282A patent/JP6773135B2/ja active Active
- 2018-01-15 TW TW107101411A patent/TWI664294B/zh active

Also Published As

Publication number	Publication date
TWI664294B (zh)	2019-07-01
KR102260155B1 (ko)	2021-06-02
TW201829788A (zh)	2018-08-16
JP6773135B2 (ja)	2020-10-21
WO2018135351A1 (ja)	2018-07-26
CN110191968A (zh)	2019-08-30
CN114457204A (zh)	2022-05-10
JPWO2018135351A1 (ja)	2019-11-07
KR20190099018A (ko)	2019-08-23

Legal Events

Date	Code	Title	Description
2021-10-19	B350	Update of information on the portal [chapter 15.35 patent gazette]
2022-07-26	B06W	Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
2023-07-25	B07A	Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
2024-04-24	B09A	Decision: intention to grant [chapter 9.1 patent gazette]
2024-07-02	B16A	Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]	Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/01/2018, OBSERVADAS AS CONDICOES LEGAIS

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