RO81381B - Produs pentru desulfurarea fontelor si otelurilor - Google Patents
Produs pentru desulfurarea fontelor si otelurilorInfo
- Publication number
- RO81381B RO81381B RO102896A RO10289680A RO81381B RO 81381 B RO81381 B RO 81381B RO 102896 A RO102896 A RO 102896A RO 10289680 A RO10289680 A RO 10289680A RO 81381 B RO81381 B RO 81381B
- Authority
- RO
- Romania
- Prior art keywords
- product
- pig iron
- steel
- slag
- desulphurizing
- Prior art date
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
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Produsul pentru desulfurarea fontelor si otelurilor inhectabil prin lance, conform inventiei, este constituit din granule de Mg sau aliaje de Mg cu continut de Al, Ca, Si, pamînturile sau mischmetall, din zgura, de zgura cu continut de SiO2, CaO, Al2O3, MgO si, eventual, de adaosuri suplimentare alese între CaF2, NaF, R2O, boratii metalice alcaline si alcalino-pamîntoase. în scopul îmbunatatirii caracteristicilor tehnologice în exploatare, produsul contine 10...90% si, de peferinta 20...80% Mg sau aliaje de magneziu si 10...90% si, de preferinta, 20...80% zgura cu indicele de bazicitate egal cu cel putin 1, componenti fiind introdusi în ameste în forma de granule de 0,5...3 mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7913279A FR2456779A1 (fr) | 1979-05-15 | 1979-05-15 | Produit pour la desulfuration des fontes et aciers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81381A RO81381A (ro) | 1984-11-25 |
| RO81381B true RO81381B (ro) | 1984-11-30 |
Family
ID=9225838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO102896A RO81381B (ro) | 1979-05-15 | 1980-05-12 | Produs pentru desulfurarea fontelor si otelurilor |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4364771A (ro) |
| EP (1) | EP0029038B1 (ro) |
| JP (1) | JPS5942725B2 (ro) |
| AR (1) | AR219255A1 (ro) |
| AU (1) | AU532686B2 (ro) |
| BE (1) | BE883297A (ro) |
| BR (1) | BR8008679A (ro) |
| CA (1) | CA1150058A (ro) |
| DE (1) | DE3065758D1 (ro) |
| FR (1) | FR2456779A1 (ro) |
| IN (1) | IN152626B (ro) |
| IT (1) | IT1140849B (ro) |
| MX (1) | MX153816A (ro) |
| RO (1) | RO81381B (ro) |
| WO (1) | WO1980002565A1 (ro) |
| ZA (1) | ZA802844B (ro) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490173A (en) * | 1982-09-30 | 1984-12-25 | Schwer John W | Steelmaking additive composition |
| US4684403A (en) * | 1986-06-19 | 1987-08-04 | Elkem Metals Company | Dephosphorization process for manganese-containing alloys |
| US4853034A (en) * | 1987-04-13 | 1989-08-01 | Quigley Joseph R | Method of ladle desulfurizing molten steel |
| FR2630131B1 (fr) * | 1988-04-14 | 1990-08-03 | Affival | Procede de desulfuration des fontes |
| US4752327A (en) * | 1987-05-08 | 1988-06-21 | Elkem Metals Company | Dephosphorization process for manganese alloys |
| DE3910776A1 (de) * | 1988-05-10 | 1989-11-23 | Fischer Ag Georg | Verfahren zur behandlung von gusseisenschmelzen in einer offenen pfanne mittels reinmagnesium |
| DE4002284A1 (de) * | 1989-12-04 | 1991-06-06 | Foseco Int | Mittel zum entschwefeln von eisenschmelzen |
| US5021086A (en) * | 1990-07-05 | 1991-06-04 | Reactive Metals And Alloys Corporation | Iron desulfurization additive and method for introduction into hot metal |
| US5358550A (en) * | 1992-10-26 | 1994-10-25 | Rossborough Manufacturing Company | Desulfurization agent |
| US5397379A (en) * | 1993-09-22 | 1995-03-14 | Oglebay Norton Company | Process and additive for the ladle refining of steel |
| DE19502302C2 (de) * | 1995-01-26 | 1996-12-05 | Deumu Deutsche Erz Und Metall | Mittel zur Entschwefelung von Eisenschmelzen |
| US6179895B1 (en) | 1996-12-11 | 2001-01-30 | Performix Technologies, Ltd. | Basic tundish flux composition for steelmaking processes |
| DE19654501C1 (de) * | 1996-12-18 | 1998-08-20 | Mannesmann Ag | Verfahren zur Roheisenentschwefelung |
| US6989040B2 (en) * | 2002-10-30 | 2006-01-24 | Gerald Zebrowski | Reclaimed magnesium desulfurization agent |
| JP4167101B2 (ja) * | 2003-03-20 | 2008-10-15 | 株式会社神戸製鋼所 | 粒状金属鉄の製法 |
| US7731778B2 (en) * | 2006-03-27 | 2010-06-08 | Magnesium Technologies Corporation | Scrap bale for steel making process |
| FR3018524B1 (fr) * | 2014-03-11 | 2017-03-10 | Affival | Procede de desulfuration d'une fonte liquide et fil fourre pour sa mise en oeuvre |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1684685A (en) * | 1925-01-06 | 1928-09-18 | Elmer H Records | Liquid fuel |
| FR1116581A (fr) * | 1953-12-30 | 1956-05-09 | Union Carbide & Carbon Corp | Fabrication de la fonte |
| FR1125154A (fr) | 1955-04-28 | 1956-10-25 | Siderurgie Fse Inst Rech | Procédé pour désulfurer les métaux en fusion et en particulièr la fonte |
| FR1166661A (fr) * | 1956-02-10 | 1958-11-13 | Union Carbide & Carbon Corp | Procédé et agent de traitement de produits ferreux |
| FR1168646A (fr) | 1957-02-21 | 1958-12-11 | Siderurgie Fse Inst Rech | Procédé d'insufflation pour désulfurer les métaux en fusion, en particulier la fonte et l'acier |
| FR1168750A (fr) | 1957-03-02 | 1958-12-15 | Siderurgie Fse Inst Rech | Affinage des fontes par insufflation de chaux pulvérulente et d'oxygène |
| US2971833A (en) * | 1958-04-09 | 1961-02-14 | Le Magnesium Thermique Soc | Process of manufacturing magnesium |
| US3765848A (en) * | 1971-01-22 | 1973-10-16 | G Brent | Motor fuel composition |
| US3957502A (en) * | 1971-11-17 | 1976-05-18 | Magnesium Elektron Limited | Addition of magnesium to molten metal |
| US4020798A (en) * | 1972-10-27 | 1977-05-03 | Skala Stephen F | Internal combustion engine fueled by NaK |
| US3953198A (en) * | 1973-08-03 | 1976-04-27 | N L Industries, Inc. | Method for treating molten iron using a magnesium infiltrated metal network |
| US3969105A (en) * | 1974-12-27 | 1976-07-13 | The Dow Chemical Company | Treating agent for high melting temperature metals |
| US4110082A (en) * | 1975-02-25 | 1978-08-29 | Michaels Christopher Van | Reformed hydrocarbons and alcohols from fuel alloys and reforming agents |
| US3998625A (en) * | 1975-11-12 | 1976-12-21 | Jones & Laughlin Steel Corporation | Desulfurization method |
| US4088454A (en) * | 1976-10-26 | 1978-05-09 | Ki Hyun Lee | Method for producing a liquid fuel composition |
| US4081252A (en) * | 1976-06-16 | 1978-03-28 | Hans Osborg | Method of improving combustion of fuels and fuel compositions |
| FR2395319A1 (fr) * | 1977-06-24 | 1979-01-19 | Sofrem | Perfectionnements aux procedes de production de magnesium par voie thermique |
-
1979
- 1979-05-15 FR FR7913279A patent/FR2456779A1/fr active Granted
-
1980
- 1980-04-24 IN IN475/CAL/80A patent/IN152626B/en unknown
- 1980-05-08 IT IT21891/80A patent/IT1140849B/it active
- 1980-05-12 AU AU59824/80A patent/AU532686B2/en not_active Ceased
- 1980-05-12 DE DE8080900923T patent/DE3065758D1/de not_active Expired
- 1980-05-12 JP JP55501086A patent/JPS5942725B2/ja not_active Expired
- 1980-05-12 US US06/224,535 patent/US4364771A/en not_active Expired - Fee Related
- 1980-05-12 RO RO102896A patent/RO81381B/ro unknown
- 1980-05-12 BR BR8008679A patent/BR8008679A/pt not_active IP Right Cessation
- 1980-05-12 WO PCT/FR1980/000073 patent/WO1980002565A1/fr not_active Ceased
- 1980-05-13 ZA ZA00802844A patent/ZA802844B/xx unknown
- 1980-05-13 MX MX182303A patent/MX153816A/es unknown
- 1980-05-14 BE BE0/200613A patent/BE883297A/fr not_active IP Right Cessation
- 1980-05-14 CA CA000351885A patent/CA1150058A/fr not_active Expired
- 1980-05-15 AR AR281068A patent/AR219255A1/es active
- 1980-12-01 EP EP80900923A patent/EP0029038B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4364771A (en) | 1982-12-21 |
| BE883297A (fr) | 1980-11-14 |
| JPS5942725B2 (ja) | 1984-10-17 |
| BR8008679A (pt) | 1981-04-14 |
| EP0029038A1 (fr) | 1981-05-27 |
| IN152626B (ro) | 1984-02-25 |
| DE3065758D1 (en) | 1984-01-05 |
| MX153816A (es) | 1987-01-19 |
| IT8021891A0 (it) | 1980-05-08 |
| IT1140849B (it) | 1986-10-10 |
| RO81381A (ro) | 1984-11-25 |
| EP0029038B1 (fr) | 1983-11-30 |
| AR219255A1 (es) | 1980-07-31 |
| CA1150058A (fr) | 1983-07-19 |
| ZA802844B (en) | 1981-05-27 |
| WO1980002565A1 (fr) | 1980-11-27 |
| FR2456779A1 (fr) | 1980-12-12 |
| AU5982480A (en) | 1981-01-15 |
| FR2456779B1 (ro) | 1984-10-05 |
| AU532686B2 (en) | 1983-10-06 |
| JPS56500302A (ro) | 1981-03-12 |
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