SK1262000A3 - Method for desiliconizing pig iron before refining it to steel - Google Patents

Method for desiliconizing pig iron before refining it to steel Download PDF

Info

Publication number: SK1262000A3
Authority: SK; Slovakia
Prior art keywords: slag; pig iron; steel; iron; content
Prior art date: 1998-06-10

Application number

SK126-2000A

Other languages

English (en)

Slovak (sk)

Inventor

Alfred Edlinger

Original Assignee

Holderbank Financ Glarus

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.)

1998-06-10

Filing date

1999-06-09

Publication date

2000-09-12

1999-06-09 Application filed by Holderbank Financ Glarus filed Critical Holderbank Financ Glarus

2000-09-12 Publication of SK1262000A3 publication Critical patent/SK1262000A3/sk

Links

229910000805 Pig iron Inorganic materials 0.000 title claims abstract description 67
229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
239000010959 steel Substances 0.000 title claims abstract description 51
238000000034 method Methods 0.000 title claims abstract description 34
238000007670 refining Methods 0.000 title abstract 2
239000002893 slag Substances 0.000 claims abstract description 111
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 44
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
229910052742 iron Inorganic materials 0.000 claims abstract description 18
229910052681 coesite Inorganic materials 0.000 claims abstract description 15
229910052906 cristobalite Inorganic materials 0.000 claims abstract description 15
229910052682 stishovite Inorganic materials 0.000 claims abstract description 15
229910052905 tridymite Inorganic materials 0.000 claims abstract description 15
239000007788 liquid Substances 0.000 claims abstract description 8
229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 4
239000000654 additive Substances 0.000 claims description 13
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
239000000203 mixture Substances 0.000 claims description 10
229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 7
239000011261 inert gas Substances 0.000 claims description 7
229910052757 nitrogen Inorganic materials 0.000 claims description 5
238000007664 blowing Methods 0.000 claims description 3
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 26
229910052710 silicon Inorganic materials 0.000 abstract description 22
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 18
239000010703 silicon Substances 0.000 abstract description 18
239000000377 silicon dioxide Substances 0.000 abstract description 5
235000012239 silicon dioxide Nutrition 0.000 abstract description 5
UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 abstract description 3
238000010079 rubber tapping Methods 0.000 abstract description 2
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
229910000423 chromium oxide Inorganic materials 0.000 abstract 1
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 16
238000006243 chemical reaction Methods 0.000 description 13
229910004298 SiO 2 Inorganic materials 0.000 description 12
238000005242 forging Methods 0.000 description 10
239000000292 calcium oxide Substances 0.000 description 8
235000012255 calcium oxide Nutrition 0.000 description 8
229910052799 carbon Inorganic materials 0.000 description 8
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
239000011651 chromium Substances 0.000 description 7
229960005191 ferric oxide Drugs 0.000 description 6
235000008733 Citrus aurantifolia Nutrition 0.000 description 5
235000011941 Tilia x europaea Nutrition 0.000 description 5
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
239000004571 lime Substances 0.000 description 5
238000004519 manufacturing process Methods 0.000 description 5
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
239000011230 binding agent Substances 0.000 description 4
229910052593 corundum Inorganic materials 0.000 description 4
229910052698 phosphorus Inorganic materials 0.000 description 4
239000011574 phosphorus Substances 0.000 description 4
229910001845 yogo sapphire Inorganic materials 0.000 description 4
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
229910002091 carbon monoxide Inorganic materials 0.000 description 3
230000000996 additive effect Effects 0.000 description 2
238000001816 cooling Methods 0.000 description 2
230000007423 decrease Effects 0.000 description 2
QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
238000005265 energy consumption Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
230000017525 heat dissipation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
230000000630 rising effect Effects 0.000 description 2
239000005997 Calcium carbide Substances 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
229910001341 Crude steel Inorganic materials 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
150000004645 aluminates Chemical class 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000004566 building material Substances 0.000 description 1
238000004364 calculation method Methods 0.000 description 1
229910001567 cementite Inorganic materials 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000012937 correction Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
239000000428 dust Substances 0.000 description 1
239000002360 explosive Substances 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
239000003337 fertilizer Substances 0.000 description 1
239000000945 filler Substances 0.000 description 1
238000002309 gasification Methods 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
229910003439 heavy metal oxide Inorganic materials 0.000 description 1
BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
238000007654 immersion Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
238000003801 milling Methods 0.000 description 1
238000013021 overheating Methods 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
231100000683 possible toxicity Toxicity 0.000 description 1
238000012545 processing Methods 0.000 description 1
230000005855 radiation Effects 0.000 description 1
206010037844 rash Diseases 0.000 description 1
230000035484 reaction time Effects 0.000 description 1
150000004760 silicates Chemical class 0.000 description 1
239000010802 sludge Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
230000002269 spontaneous effect Effects 0.000 description 1
238000003860 storage Methods 0.000 description 1
239000000126 substance Substances 0.000 description 1
CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 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
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies

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)
Carbon Steel Or Casting Steel Manufacturing (AREA)

SK126-2000A 1998-06-10 1999-06-09 Method for desiliconizing pig iron before refining it to steel SK1262000A3 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT0100698A AT406691B (de)	1998-06-10	1998-06-10	Verfahren zum entsilizieren von roheisen vor einem frischen zu stahl
PCT/AT1999/000149 WO1999064635A1 (fr)	1998-06-10	1999-06-09	Procede de desiliciage de fonte brute avant un affinage en acier

Publications (1)

Publication Number	Publication Date
SK1262000A3 true SK1262000A3 (en)	2000-09-12

Family

ID=3504771

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SK126-2000A SK1262000A3 (en)	1998-06-10	1999-06-09	Method for desiliconizing pig iron before refining it to steel

Country Status (9)

Country	Link
US (1)	US6261339B1 (fr)
EP (1)	EP1007744A1 (fr)
AT (1)	AT406691B (fr)
BR (1)	BR9906496A (fr)
CA (1)	CA2299277A1 (fr)
ES (1)	ES2149752T1 (fr)
SK (1)	SK1262000A3 (fr)
WO (1)	WO1999064635A1 (fr)
ZA (1)	ZA200000582B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2009507259A (ja)	2005-09-09	2009-02-19	ローベルトボツシユゲゼルシヤフトミツトベシユレンクテルハフツング	交換可能なモジュールを有する会議システム用ディスカッションユニット

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS538310A (en) *	1976-07-13	1978-01-25	Nippon Steel Corp	Reusing method of steel making slag
JPS58181815A (ja) *	1982-04-19	1983-10-24	Nippon Kokan Kk <Nkk>	転炉による溶銑の予備脱硅方法
JPS59104414A (ja)	1982-12-07	1984-06-16	Nippon Steel Corp	溶銑の脱珪方法
JPS60218408A (ja) *	1984-04-13	1985-11-01	Sumitomo Metal Ind Ltd	溶銑の予備処理方法
JPS6318011A (ja) *	1986-07-10	1988-01-25	Kawasaki Steel Corp	溶銑の予備処理方法
JPH01156413A (ja)	1987-12-11	1989-06-20	Nisshin Steel Co Ltd	溶銑の予備処理法および装置
JPH032308A (ja) *	1989-05-31	1991-01-08	Nkk Corp	溶銑予備処理方法
DE4242328C2 (de) *	1992-12-15	1995-06-08	Alfred Dipl Ing Dr Freissmuth	Mittel zur Entschwefelung, Entphosphorung, Entsilicierung und Entstickung von Roheisen- und Gußeisenschmelzen
CZ291176B6 (cs) *	1993-09-07	2003-01-15	Holcim Ltd.	Způsob výroby oceli a hydraulicky aktivních pojiv

1998
- 1998-06-10 AT AT0100698A patent/AT406691B/de not_active IP Right Cessation
1999
- 1999-06-09 CA CA 2299277 patent/CA2299277A1/fr not_active Abandoned
- 1999-06-09 WO PCT/AT1999/000149 patent/WO1999064635A1/fr not_active Ceased
- 1999-06-09 BR BR9906496A patent/BR9906496A/pt not_active Application Discontinuation
- 1999-06-09 EP EP99924566A patent/EP1007744A1/fr not_active Withdrawn
- 1999-06-09 ES ES99924566T patent/ES2149752T1/es active Pending
- 1999-06-09 SK SK126-2000A patent/SK1262000A3/sk unknown
- 1999-06-09 US US09/485,369 patent/US6261339B1/en not_active Expired - Fee Related
2000
- 2000-02-08 ZA ZA200000582A patent/ZA200000582B/xx unknown

Also Published As

Publication number	Publication date
EP1007744A1 (fr)	2000-06-14
ES2149752T1 (es)	2000-11-16
CA2299277A1 (fr)	1999-12-16
AT406691B (de)	2000-07-25
BR9906496A (pt)	2000-09-26
ATA100698A (de)	1999-12-15
ZA200000582B (en)	2001-03-12
US6261339B1 (en)	2001-07-17
WO1999064635A1 (fr)	1999-12-16

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