CA1239540A - Method for controlling slag chemistry in a refining vessel - Google Patents

Method for controlling slag chemistry in a refining vessel

Info

Publication number: CA1239540A
Authority: CA; Canada
Prior art keywords: silicon; alumina; weight; silica; slag
Prior art date: 1984-04-17
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

CA000479613A

Other languages

English (en)

French (fr)

Inventor

Balkishan Agrawal

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.)

Union Carbide Corp

Original Assignee

Union Carbide 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.)

1984-04-17

Filing date

1985-04-19

Publication date

1988-07-26

1985-04-19 Application filed by Union Carbide Corp filed Critical Union Carbide Corp

1988-07-26 Application granted granted Critical

1988-07-26 Publication of CA1239540A publication Critical patent/CA1239540A/en

Status Expired legal-status Critical Current

Links

239000002893 slag Substances 0.000 title claims abstract description 182
238000000034 method Methods 0.000 title claims abstract description 103
238000007670 refining Methods 0.000 title claims abstract description 64
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 239
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 191
229910052710 silicon Inorganic materials 0.000 claims abstract description 191
239000010703 silicon Substances 0.000 claims abstract description 191
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 121
239000000377 silicon dioxide Substances 0.000 claims abstract description 117
229910052782 aluminium Inorganic materials 0.000 claims abstract description 104
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 102
229910052751 metal Inorganic materials 0.000 claims abstract description 63
239000002184 metal Substances 0.000 claims abstract description 63
239000000446 fuel Substances 0.000 claims abstract description 60
239000007789 gas Substances 0.000 claims abstract description 28
238000007254 oxidation reaction Methods 0.000 claims abstract description 25
239000000203 mixture Substances 0.000 claims abstract description 24
230000003647 oxidation Effects 0.000 claims abstract description 24
238000002347 injection Methods 0.000 claims abstract description 17
239000007924 injection Substances 0.000 claims abstract description 17
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 13
229910001882 dioxygen Inorganic materials 0.000 claims abstract description 13
238000007792 addition Methods 0.000 claims description 67
239000000155 melt Substances 0.000 claims description 37
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
239000001301 oxygen Substances 0.000 claims description 17
229910052760 oxygen Inorganic materials 0.000 claims description 17
238000006243 chemical reaction Methods 0.000 claims description 14
229910000831 Steel Inorganic materials 0.000 claims description 13
239000010959 steel Substances 0.000 claims description 13
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
229910045601 alloy Inorganic materials 0.000 claims description 9
239000000956 alloy Substances 0.000 claims description 9
239000003638 chemical reducing agent Substances 0.000 claims description 8
239000011819 refractory material Substances 0.000 claims description 7
229910000975 Carbon steel Inorganic materials 0.000 claims description 5
229910000531 Co alloy Inorganic materials 0.000 claims description 5
239000007787 solid Substances 0.000 claims description 5
229910001220 stainless steel Inorganic materials 0.000 claims description 5
239000013256 coordination polymer Substances 0.000 claims 5
229910000990 Ni alloy Inorganic materials 0.000 claims 4
238000012619 stoichiometric conversion Methods 0.000 claims 4
229910052681 coesite Inorganic materials 0.000 claims 2
229910052906 cristobalite Inorganic materials 0.000 claims 2
235000012239 silicon dioxide Nutrition 0.000 claims 2
229910052682 stishovite Inorganic materials 0.000 claims 2
229910052905 tridymite Inorganic materials 0.000 claims 2
230000001590 oxidative effect Effects 0.000 abstract description 20
238000006722 reduction reaction Methods 0.000 description 47
230000003466 anti-cipated effect Effects 0.000 description 10
238000005261 decarburization Methods 0.000 description 8
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
230000002378 acidificating effect Effects 0.000 description 5
UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
239000000470 constituent Substances 0.000 description 4
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 description 3
229910000514 dolomite Inorganic materials 0.000 description 3
239000010459 dolomite Substances 0.000 description 3
230000000694 effects Effects 0.000 description 3
238000010438 heat treatment Methods 0.000 description 3
229910052742 iron Inorganic materials 0.000 description 3
229910052717 sulfur Inorganic materials 0.000 description 3
239000011593 sulfur Substances 0.000 description 3
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 2
235000011941 Tilia x europaea Nutrition 0.000 description 2
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
229910052799 carbon Inorganic materials 0.000 description 2
229910052804 chromium Inorganic materials 0.000 description 2
239000011651 chromium Substances 0.000 description 2
229910000423 chromium oxide Inorganic materials 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000006477 desulfuration reaction Methods 0.000 description 2
230000023556 desulfurization Effects 0.000 description 2
230000003009 desulfurizing effect Effects 0.000 description 2
238000011067 equilibration Methods 0.000 description 2
230000004907 flux Effects 0.000 description 2
AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
239000004571 lime Substances 0.000 description 2
229910001338 liquidmetal Inorganic materials 0.000 description 2
239000001095 magnesium carbonate Substances 0.000 description 2
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
229910000021 magnesium carbonate Inorganic materials 0.000 description 2
235000014380 magnesium carbonate Nutrition 0.000 description 2
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
102220047090 rs6152 Human genes 0.000 description 2
229910000851 Alloy steel Inorganic materials 0.000 description 1
229910000952 Be alloy Inorganic materials 0.000 description 1
239000005997 Calcium carbide Substances 0.000 description 1
239000004215 Carbon black (E152) Substances 0.000 description 1
229910000519 Ferrosilicon Inorganic materials 0.000 description 1
229910001315 Tool steel Inorganic materials 0.000 description 1
VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
239000000654 additive Substances 0.000 description 1
238000005275 alloying Methods 0.000 description 1
229910021529 ammonia Inorganic materials 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
238000007664 blowing Methods 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
239000010962 carbon steel Substances 0.000 description 1
230000002925 chemical effect Effects 0.000 description 1
238000001816 cooling Methods 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
238000007872 degassing Methods 0.000 description 1
230000002939 deleterious effect Effects 0.000 description 1
239000002816 fuel additive Substances 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
239000000463 material Substances 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
238000002156 mixing Methods 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
239000000047 product Substances 0.000 description 1
238000011084 recovery Methods 0.000 description 1
238000010079 rubber tapping Methods 0.000 description 1
HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
229910010271 silicon carbide Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
-1 steam Chemical compound 0.000 description 1
239000000126 substance Substances 0.000 description 1
239000013589 supplement 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
238000009966 trimming Methods 0.000 description 1
235000013522 vodka Nutrition 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
- 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
- C21C5/36—Processes yielding slags of special composition
- 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
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
- 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

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Analytical Chemistry (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)
Treatment Of Steel In Its Molten State (AREA)
Manufacture And Refinement Of Metals (AREA)

CA000479613A 1984-04-17 1985-04-19 Method for controlling slag chemistry in a refining vessel Expired CA1239540A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US06/601,286 US4551175A (en)	1984-04-17	1984-04-17	Method for controlling slag chemistry in a refining vessel
US601,286		1984-04-17

Publications (1)

Publication Number	Publication Date
CA1239540A true CA1239540A (en)	1988-07-26

Family

ID=24406930

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000479613A Expired CA1239540A (en)	1984-04-17	1985-04-19	Method for controlling slag chemistry in a refining vessel

Country Status (11)

Country	Link
US (1)	US4551175A (2)
EP (1)	EP0179865B1 (2)
JP (1)	JPS61501933A (2)
KR (1)	KR920004099B1 (2)
BR (1)	BR8506611A (2)
CA (1)	CA1239540A (2)
DE (1)	DE3574735D1 (2)
ES (1)	ES8702317A1 (2)
IN (1)	IN169251B (2)
MX (1)	MX168664B (2)
WO (1)	WO1985004905A1 (2)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2164536C1 (ru) *	2000-04-21	2001-03-27	ОАО "Чусовской металлургический завод"	Способ производства в мартеновской печи конструкционной стали с пониженной прокаливаемостью
RU2451090C1 (ru) *	2010-10-26	2012-05-20	Закрытое акционерное общество "Научно-Производственная Компания Технология машиностроения и Объемно-поверхностная закалка" (ЗАО "НПК Техмаш и ОПЗ")	Способ выплавки конструкционной стали пониженной и регламентированной прокаливаемости
RU2732272C1 (ru) *	2019-08-01	2020-09-14	Общество с ограниченной ответственностью "НАУЧНО-ПРОИЗВОДСТВЕННАЯ КОМПАНИЯ ТЕХНОЛОГИЯ МАШИНОСТРОЕНИЯ И ОБЪЁМНО-ПОВЕРХНОСТНАЯ ЗАКАЛКА"	СПОСОБ ВЫПЛАВКИ КОНСТРУКЦИОННОЙ СТАЛИ ПОНИЖЕННОЙ (ПП) И РЕГЛАМЕНТИРОВАННОЙ (РП) ПРОКАЛИВАЕМОСТИ 4-го ПОКОЛЕНИЯ
CN112560218B (zh) *	2020-11-10	2021-09-03	北京科技大学	Lf精炼造渣石灰加入量预测方法、系统及lf精炼方法
CN112094981B (zh) *	2020-11-12	2021-02-19	北京科技大学	一种去除45号钢中的气泡的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3816720A (en) *	1971-11-01	1974-06-11	Union Carbide Corp	Process for the decarburization of molten metal
US4187102A (en) *	1978-08-24	1980-02-05	Union Carbide Corporation	Method for controlling the temperature of the melt during pneumatic refining of steel
US4278464A (en) *	1979-12-27	1981-07-14	Union Carbide Corporation	Method for preventing slopping during subsurface pneumatic refining of steel
US4286774A (en) *	1980-04-22	1981-09-01	Victor Benatar	System for automatically injecting a measured quantity of powdered reagent into a pool of molten metal

1984
- 1984-04-17 US US06/601,286 patent/US4551175A/en not_active Expired - Fee Related
1985
- 1985-04-16 IN IN314/DEL/85A patent/IN169251B/en unknown
- 1985-04-16 ES ES542288A patent/ES8702317A1/es not_active Expired
- 1985-04-16 MX MX204979A patent/MX168664B/es unknown
- 1985-04-17 JP JP60502012A patent/JPS61501933A/ja active Granted
- 1985-04-17 EP EP85902291A patent/EP0179865B1/en not_active Expired
- 1985-04-17 BR BR8506611A patent/BR8506611A/pt not_active IP Right Cessation
- 1985-04-17 DE DE8585902291T patent/DE3574735D1/de not_active Expired - Lifetime
- 1985-04-17 WO PCT/US1985/000677 patent/WO1985004905A1/en not_active Ceased
- 1985-04-19 CA CA000479613A patent/CA1239540A/en not_active Expired
- 1985-12-17 KR KR1019850700392A patent/KR920004099B1/ko not_active Expired

Also Published As

Publication number	Publication date
EP0179865B1 (en)	1989-12-13
KR920004099B1 (ko)	1992-05-25
IN169251B (2)	1991-09-21
DE3574735D1 (de)	1990-01-18
KR860700047A (ko)	1986-01-31
BR8506611A (pt)	1986-04-15
US4551175A (en)	1985-11-05
ES542288A0 (es)	1987-01-01
MX168664B (es)	1993-06-02
JPH0142323B2 (2)	1989-09-12
EP0179865A1 (en)	1986-05-07
ES8702317A1 (es)	1987-01-01
WO1985004905A1 (en)	1985-11-07
JPS61501933A (ja)	1986-09-04

Legal Events

Date	Code	Title	Description
2005-07-26	MKEX	Expiry

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