CA1083824A - Slag fluidizing agent and method of using same for iron and steel-making processes - Google Patents
Slag fluidizing agent and method of using same for iron and steel-making processesInfo
- Publication number
- CA1083824A CA1083824A CA262,593A CA262593A CA1083824A CA 1083824 A CA1083824 A CA 1083824A CA 262593 A CA262593 A CA 262593A CA 1083824 A CA1083824 A CA 1083824A
- Authority
- CA
- Canada
- Prior art keywords
- aluminum silicate
- iron
- fluidizing
- slag
- agent
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 49
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 39
- 239000002893 slag Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009628 steelmaking Methods 0.000 title abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 230000003750 conditioning effect Effects 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 23
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 23
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000470 constituent Substances 0.000 claims abstract description 20
- 239000004571 lime Substances 0.000 claims abstract description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 15
- 235000019738 Limestone Nutrition 0.000 claims abstract description 13
- 239000006028 limestone Substances 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- COHCXWLRUISKOO-UHFFFAOYSA-N [AlH3].[Ba] Chemical compound [AlH3].[Ba] COHCXWLRUISKOO-UHFFFAOYSA-N 0.000 claims abstract description 6
- DNEHKUCSURWDGO-UHFFFAOYSA-N aluminum sodium Chemical compound [Na].[Al] DNEHKUCSURWDGO-UHFFFAOYSA-N 0.000 claims abstract description 6
- SXQXMCWCWVCFPC-UHFFFAOYSA-N aluminum;potassium;dioxido(oxo)silane Chemical compound [Al+3].[K+].[O-][Si]([O-])=O.[O-][Si]([O-])=O SXQXMCWCWVCFPC-UHFFFAOYSA-N 0.000 claims abstract description 6
- IQDXNHZDRQHKEF-UHFFFAOYSA-N dialuminum;dicalcium;dioxido(oxo)silane Chemical compound [Al+3].[Al+3].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O IQDXNHZDRQHKEF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004484 Briquette Substances 0.000 claims abstract description 3
- 239000010436 fluorite Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000010434 nepheline Substances 0.000 claims description 8
- 229910052664 nepheline Inorganic materials 0.000 claims description 8
- 239000010435 syenite Substances 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 4
- 239000010433 feldspar Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052650 alkali feldspar Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000008188 pellet Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000011449 brick Substances 0.000 abstract description 4
- 230000004907 flux Effects 0.000 abstract description 4
- 229940000425 combination drug Drugs 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 229940095626 calcium fluoride Drugs 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum silicates Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 101710125089 Bindin Proteins 0.000 description 1
- 235000003197 Byrsonima crassifolia Nutrition 0.000 description 1
- 240000001546 Byrsonima crassifolia Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101150080656 DIO2 gene Proteins 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ZXRRHFSTAFVGOC-UHFFFAOYSA-N [AlH3].[K] Chemical compound [AlH3].[K] ZXRRHFSTAFVGOC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052656 albite Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940091249 fluoride supplement Drugs 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 108010052322 limitin Proteins 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052651 microcline Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052652 orthoclase Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052654 sanidine Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US619,977 | 1975-10-06 | ||
| US05/619,977 US3998624A (en) | 1975-10-06 | 1975-10-06 | Slag fluidizing agent and method of using same for iron and steel-making processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1083824A true CA1083824A (en) | 1980-08-19 |
Family
ID=24484086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA262,593A Expired CA1083824A (en) | 1975-10-06 | 1976-10-04 | Slag fluidizing agent and method of using same for iron and steel-making processes |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3998624A (en:Method) |
| CA (1) | CA1083824A (en:Method) |
| DE (1) | DE2645155C2 (en:Method) |
| ES (1) | ES452355A1 (en:Method) |
| FR (1) | FR2327320A1 (en:Method) |
| GB (1) | GB1552662A (en:Method) |
| IT (1) | IT1068409B (en:Method) |
| MX (1) | MX144509A (en:Method) |
| NL (1) | NL171725C (en:Method) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1147528A (en) * | 1979-06-09 | 1983-06-07 | Seikichi Tabei | Additives for continuous casting of steel |
| JPS565910A (en) * | 1979-06-29 | 1981-01-22 | Nisshin Steel Co Ltd | Dephosphorizing method of pig iron containing chromium |
| EP0060706A1 (en) * | 1981-03-16 | 1982-09-22 | Nippon Steel Corporation | Method for removing slag on the surface of molten metal by suction |
| US4511124A (en) * | 1983-05-03 | 1985-04-16 | Lone Star Steel Company | Method and composition for fluidization of accumulated pit scrap in soaking pits |
| IT1201506B (it) * | 1985-12-03 | 1989-02-02 | Giovanni Crespi | Miscela fondente per scorie d'acciaierie in forni ad arco,forni a ossigeno tipo ld, o.b.m.,kaldo e altri similari |
| US4874428A (en) * | 1988-09-12 | 1989-10-17 | Armco Inc. | Fluidizing a lime-silica slag |
| US5284617A (en) * | 1992-09-04 | 1994-02-08 | General Motors Corporation | Process for dealuminizing molten cast iron |
| RU2192479C1 (ru) * | 2001-07-16 | 2002-11-10 | ООО "НПП "Технология" | Способ рафинирования и модифицирования железоуглеродистого расплава |
| RU2258745C1 (ru) * | 2004-07-05 | 2005-08-20 | Общество с ограниченной ответственностью "Научно-производственное малое предприятие Интермет-Сервис" | Способ рафинирования железоуглеродистого расплава |
| RU2321641C1 (ru) * | 2006-06-07 | 2008-04-10 | Общество с ограниченной ответственностью "Экологический региональный центр" | Комплексный синтетический легкоплавкий флюс для черной металлургии |
| US20080015104A1 (en) * | 2006-07-13 | 2008-01-17 | Unimin Corporation | Ultrafine nepheline syenite |
| US20080040980A1 (en) * | 2006-07-13 | 2008-02-21 | Unimin Corporation | Method of processing nepheline syenite |
| US8858699B2 (en) | 2006-07-13 | 2014-10-14 | Unimin Corporation | Ultra fine nepheline syenite powder and products for using same |
| US7757976B2 (en) * | 2007-02-07 | 2010-07-20 | Unimin Corporation | Method of processing nepheline syenite powder to produce an ultra-fine grain size product |
| RU2374327C2 (ru) * | 2007-02-26 | 2009-11-27 | Константин Николаевич Демидов | Сталеплавильный флюс и способ его получения (варианты) |
| WO2009008965A1 (en) * | 2007-07-09 | 2009-01-15 | Unimin Corporation | Nepheline syenite powder with controlled particle size and novel method of making same |
| JP5480884B2 (ja) * | 2008-04-17 | 2014-04-23 | ユニミン コーポレーション | 温熱フィルムに用いる、制御された粒径分布を有する、鉱石又は岩石マテリアルから形成される粉末 |
| RU2495133C2 (ru) * | 2011-12-14 | 2013-10-10 | Открытое акционерное общество "КАМАЗ" | Способ производства высокопрочных чугунов с шаровидным или вермикулярным графитом на основе наноструктурированного науглероживателя |
| WO2013142430A1 (en) | 2012-03-20 | 2013-09-26 | Unimin Corporation | Mineral based fillers used as a substitute for wood fillers in simulated wood products and simulated wood products containing the same |
| RU2639199C2 (ru) * | 2016-06-08 | 2017-12-20 | Федеральное государственное бюджетное учреждение науки Институт металлургии Уральского отделения Российской академии наук (ИМЕТ УрО РАН) | Способ получения синтетического флюса для сталеплавильного производства |
| KR101717738B1 (ko) * | 2016-11-25 | 2017-03-20 | 성일하이텍(주) | 저품위 동 슬러지로부터 조동 제조방법 |
| RU2746198C1 (ru) * | 2020-04-12 | 2021-04-08 | Акционерное общество "Завод алюминиевых сплавов" | Смесь алюмооксидная для разжижения металлургических шлаков |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US251570A (en) * | 1881-12-27 | Henry glass | ||
| US1890485A (en) * | 1929-11-06 | 1932-12-13 | Paul R Caruthers | Method of treating metal |
| US2694023A (en) * | 1950-04-08 | 1954-11-09 | Kellogg M W Co | Metal treating flux |
| GB808516A (en) * | 1956-04-18 | 1959-02-04 | Derbyshire Stone Ltd | Improvements in or relating to slag-forming materials for use in the melting of iron and steel |
| US3320052A (en) * | 1964-09-17 | 1967-05-16 | James J Bowden | Flux used in the making of steel |
| DE1809700B1 (de) * | 1967-11-30 | 1970-01-29 | Denain Nord Est Longwy | Metallurgisches Flussmittel und Verfahren zu dessen Herstellung |
| FR96317E (fr) * | 1968-11-21 | 1972-06-16 | Denain Anzin Mineraux S A | Fondant, en particulier pour la sidérurgie, et procédé pour sa préparation. |
| US3721547A (en) * | 1971-09-15 | 1973-03-20 | Cleveland Flux Co | Method of fluxing and fluidizing slag in a cupola |
| US3827880A (en) * | 1971-12-07 | 1974-08-06 | British Steel Corp | Inclusion of hydroboracite in additive composition and use thereof in steel refining |
| US3881917A (en) * | 1974-01-21 | 1975-05-06 | Crawford Brown Murton | Method of refining steel |
-
1975
- 1975-10-06 US US05/619,977 patent/US3998624A/en not_active Expired - Lifetime
-
1976
- 1976-10-04 CA CA262,593A patent/CA1083824A/en not_active Expired
- 1976-10-05 GB GB41329/76A patent/GB1552662A/en not_active Expired
- 1976-10-05 IT IT28019/76A patent/IT1068409B/it active
- 1976-10-06 NL NLAANVRAGE7611049,A patent/NL171725C/xx not_active IP Right Cessation
- 1976-10-06 DE DE2645155A patent/DE2645155C2/de not_active Expired
- 1976-10-06 FR FR7630123A patent/FR2327320A1/fr active Granted
- 1976-10-06 MX MX166572A patent/MX144509A/es unknown
- 1976-10-13 ES ES452355A patent/ES452355A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES452355A1 (es) | 1977-12-16 |
| FR2327320B1 (en:Method) | 1980-05-16 |
| US3998624A (en) | 1976-12-21 |
| FR2327320A1 (fr) | 1977-05-06 |
| DE2645155C2 (de) | 1983-09-08 |
| NL171725B (nl) | 1982-12-01 |
| IT1068409B (it) | 1985-03-21 |
| NL171725C (nl) | 1983-05-02 |
| GB1552662A (en) | 1979-09-19 |
| MX144509A (es) | 1981-10-22 |
| NL7611049A (nl) | 1977-04-12 |
| DE2645155A1 (de) | 1977-04-14 |
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