ES2140232T3 - CALCIUM CARBIDE-BASED DESULFURING BLEND. - Google Patents
CALCIUM CARBIDE-BASED DESULFURING BLEND.Info
- Publication number
- ES2140232T3 ES2140232T3 ES97919467T ES97919467T ES2140232T3 ES 2140232 T3 ES2140232 T3 ES 2140232T3 ES 97919467 T ES97919467 T ES 97919467T ES 97919467 T ES97919467 T ES 97919467T ES 2140232 T3 ES2140232 T3 ES 2140232T3
- Authority
- ES
- Spain
- Prior art keywords
- desulfuring
- granulometry
- calcium carbide
- less
- blend
- 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 - Lifetime
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
LA INVENCION SE REFIERE A UNA MEZCLA DESULFURANTE DE LA FUNDICION REFINADA CONSTITUIDO POR AL MENOS UN 50 % (EN PESO) DE CARBURO DE CALCIO EN POLVO DE GRANULOMETRIA INFERIOR A 0,2 MM, ENTRE UN 1 Y UN 20 % DE MAGNESIO O GRANULOS DE GRANULOMETRIA INFERIOR A 0,8 MM Y ENTRE UN 5 Y UN 15 % DE ALUMINIO EN POLVO O GRANULOS DE GRANULOMETRIA INFERIOR A 0,8 MM, Y EVENTUALMENTE OTROS ADITIVOS EN POLVO COMO LA CAL, EL CARBONATO DE CALCIO, PRODUCTOS CARBONADOS, Y/O AGENTES DE REVESTIMIENTO DE LOS GRANOS, SIENDO LA CANTIDAD TOTAL DE LOS ADITIVOS DE UN 30% COMO MAXIMO. LA MEZCLA SEGUN LA INVENCION PERMITE REDUCIR LAS PERDIDAS DE HIERRO A LO LARGO DE LA DESULFURACION.THE INVENTION REFERS TO A REFINED FOUNDRY DESULFURING MIX CONSTITUTING OF AT LEAST 50% (BY WEIGHT) OF CALCIUM CARBIDE POWDER OF GRANULOMETRY LESS THAN 0.2 MM, BETWEEN 1 AND 20% OF MAGNESIUM OR GRANULES OF GRANULOMETRY LESS THAN 0.8 MM AND BETWEEN 5 AND 15% ALUMINUM POWDER OR GRANULOMETRY GRANULES LESS THAN 0.8 MM, AND EVENTUALLY OTHER POWDERED ADDITIVES LIKE CALCIUM CARBONATE, CARBON PRODUCTS, AND / OR GRAIN COATING AGENTS, THE TOTAL AMOUNT OF ADDITIVES BEING A MAXIMUM OF 30%. THE MIXTURE ACCORDING TO THE INVENTION ALLOWS TO REDUCE THE LOSS OF IRON THROUGHOUT THE DESULFURATION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9604493A FR2747132B1 (en) | 1996-04-04 | 1996-04-04 | CALCIUM CARBIDE DESULFURING MIXTURE |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2140232T3 true ES2140232T3 (en) | 2000-02-16 |
Family
ID=9491082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97919467T Expired - Lifetime ES2140232T3 (en) | 1996-04-04 | 1997-04-02 | CALCIUM CARBIDE-BASED DESULFURING BLEND. |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0891431B1 (en) |
AU (1) | AU2392897A (en) |
BG (1) | BG63215B1 (en) |
CZ (1) | CZ293175B6 (en) |
DE (1) | DE69700665T2 (en) |
ES (1) | ES2140232T3 (en) |
FR (1) | FR2747132B1 (en) |
HU (1) | HU222767B1 (en) |
PL (1) | PL183768B1 (en) |
RO (1) | RO117712B1 (en) |
RU (1) | RU2166548C2 (en) |
SK (1) | SK283419B6 (en) |
UA (1) | UA49014C2 (en) |
WO (1) | WO1997038142A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19857733A1 (en) * | 1998-12-15 | 2000-06-21 | Almamet Gmbh | Desulfurizing agent |
FR2789697B1 (en) * | 1999-02-12 | 2001-04-06 | Pechiney Electrometallurgie | DESULFURIZING MIXTURE BASED ON CALCIUM CARBIDE AND / OR LIME |
CN101367025B (en) * | 2008-08-13 | 2011-07-27 | 陈宏� | Calcium based composite catalysis dry desulfurizing agent for circulating fluidized bed boiler and preparation method thereof |
BR102014017197A2 (en) * | 2014-07-11 | 2016-02-16 | Tecnosulfur Sist De Tratamento De Metais Liquidos S A | desulphurant composition and its production process, packaging method and application in small pans for the production of cast irons |
CN107245549B (en) * | 2017-06-15 | 2018-12-18 | 王强 | A kind of the efficient of electrolytic aluminium factory aluminium ash utilizes technique |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE418074C (en) * | 1922-03-12 | 1925-08-25 | Wilhelm Kroll Dr | Desulphurizer for iron and steel baths |
DE2447918A1 (en) * | 1974-10-08 | 1976-04-29 | Gammal Tarek Prof Dr Ing El | Refining of steel - by using an alloy of calcium, aluminium and magnesium free of oxide |
DE2531047B2 (en) * | 1975-07-11 | 1978-07-06 | Kloeckner-Werke Ag, 4100 Duisburg | Process for the desulphurization of pig iron |
DE2709062A1 (en) * | 1977-03-02 | 1978-09-07 | Sueddeutsche Kalkstickstoff | MEANS AND METHODS FOR DESULFURIZING METAL IRON |
JPS54136516A (en) * | 1978-04-14 | 1979-10-23 | Kobe Steel Ltd | Hot iron desulfurizing agent |
-
1996
- 1996-04-04 FR FR9604493A patent/FR2747132B1/en not_active Expired - Fee Related
-
1997
- 1997-04-02 UA UA98115805A patent/UA49014C2/en unknown
- 1997-04-02 DE DE69700665T patent/DE69700665T2/en not_active Expired - Fee Related
- 1997-04-02 SK SK1379-98A patent/SK283419B6/en unknown
- 1997-04-02 RO RO98-01446A patent/RO117712B1/en unknown
- 1997-04-02 AU AU23928/97A patent/AU2392897A/en not_active Abandoned
- 1997-04-02 RU RU98119951/02A patent/RU2166548C2/en not_active IP Right Cessation
- 1997-04-02 PL PL97329220A patent/PL183768B1/en not_active IP Right Cessation
- 1997-04-02 EP EP97919467A patent/EP0891431B1/en not_active Expired - Lifetime
- 1997-04-02 CZ CZ19983147A patent/CZ293175B6/en not_active IP Right Cessation
- 1997-04-02 ES ES97919467T patent/ES2140232T3/en not_active Expired - Lifetime
- 1997-04-02 HU HU9902168A patent/HU222767B1/en not_active IP Right Cessation
- 1997-04-02 WO PCT/FR1997/000592 patent/WO1997038142A1/en active IP Right Grant
-
1998
- 1998-08-19 BG BG102700A patent/BG63215B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
HU222767B1 (en) | 2003-10-28 |
BG63215B1 (en) | 2001-06-29 |
PL183768B1 (en) | 2002-07-31 |
RO117712B1 (en) | 2002-06-28 |
DE69700665D1 (en) | 1999-11-25 |
FR2747132A1 (en) | 1997-10-10 |
CZ293175B6 (en) | 2004-02-18 |
DE69700665T2 (en) | 2000-05-11 |
AU2392897A (en) | 1997-10-29 |
UA49014C2 (en) | 2002-09-16 |
BG102700A (en) | 1999-03-31 |
CZ314798A3 (en) | 1999-08-11 |
PL329220A1 (en) | 1999-03-15 |
EP0891431B1 (en) | 1999-10-20 |
HUP9902168A2 (en) | 1999-11-29 |
SK137998A3 (en) | 1999-05-07 |
FR2747132B1 (en) | 1998-06-19 |
SK283419B6 (en) | 2003-07-01 |
EP0891431A1 (en) | 1999-01-20 |
RU2166548C2 (en) | 2001-05-10 |
WO1997038142A1 (en) | 1997-10-16 |
HUP9902168A3 (en) | 2001-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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