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
Application number
ES97919467T
Other languages
Spanish (es)
Inventor
Gilles Nussbaum
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.)
Ferroglobe France SAS
Original Assignee
Pechiney Electrometallurgie SAS
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.)
Filing date
Publication date
Application filed by Pechiney Electrometallurgie SAS filed Critical Pechiney Electrometallurgie SAS
Application granted granted Critical
Publication of ES2140232T3 publication Critical patent/ES2140232T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.

ES97919467T 1996-04-04 1997-04-02 CALCIUM CARBIDE-BASED DESULFURING BLEND. Expired - Lifetime ES2140232T3 (en)

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)

* Cited by examiner, † Cited by third party
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 (15)

* Cited by examiner, † Cited by third party
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
US3929464A (en) * 1973-08-31 1975-12-30 Union Carbide Corp Desulfurization of molten ferrous metals
SU466280A1 (en) * 1974-01-09 1975-04-05 Донецкий Научно-Исследовательский Институ Черной Металлургии The method of desulfurization of iron
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
SU532633A1 (en) * 1975-07-09 1976-10-25 Грузинский Ордена Ленина И Трудового Красного Знамени Политехничнский Институт Имени В.И.Ленина Mixture for desulfurization of iron and steel
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
DE2716457C2 (en) * 1977-04-14 1985-11-21 Skw Trostberg Ag, 8223 Trostberg Process for injecting desulphurisation mixtures into iron melts
JPS54136516A (en) * 1978-04-14 1979-10-23 Kobe Steel Ltd Hot iron desulfurizing agent
DE2934193A1 (en) * 1979-08-23 1981-03-26 Denki Kagaku Kogyo K.K., Tokio/Tokyo Desulphurising agent for molten pig iron - consists of mixt. of carbon, magnesium cpd., and calcium carbide
US4462823A (en) * 1982-12-11 1984-07-31 Foseco International Limited Treatment agents for molten steel
CA1240842A (en) * 1984-05-16 1988-08-23 Heinrich Rellermeyer Method, process and composition for desulfurizing pig-iron melts
DE3908071A1 (en) * 1989-03-13 1990-09-20 Hoechst Ag MEANS AND METHOD FOR DISCHARGING METAL MELTS
US4941914A (en) * 1989-05-18 1990-07-17 Elkem Metals Company Desulfurization agent
FR2668776B1 (en) * 1990-11-05 1994-05-13 Pechiney Electrometallurgie PRODUCT FOR DESULFURIZING CAST IRONS OR LIQUID STEELS BASED ON COATED MAGNESIUM.

Also Published As

Publication number Publication date
PL329220A1 (en) 1999-03-15
EP0891431B1 (en) 1999-10-20
CZ293175B6 (en) 2004-02-18
RU2166548C2 (en) 2001-05-10
DE69700665D1 (en) 1999-11-25
SK283419B6 (en) 2003-07-01
HU222767B1 (en) 2003-10-28
WO1997038142A1 (en) 1997-10-16
FR2747132B1 (en) 1998-06-19
FR2747132A1 (en) 1997-10-10
BG63215B1 (en) 2001-06-29
EP0891431A1 (en) 1999-01-20
HUP9902168A3 (en) 2001-11-28
RO117712B1 (en) 2002-06-28
SK137998A3 (en) 1999-05-07
UA49014C2 (en) 2002-09-16
HUP9902168A2 (en) 1999-11-29
CZ314798A3 (en) 1999-08-11
AU2392897A (en) 1997-10-29
DE69700665T2 (en) 2000-05-11
PL183768B1 (en) 2002-07-31
BG102700A (en) 1999-03-31

Similar Documents

Publication Publication Date Title
GB2198125B (en) Investments for dental casting
BG105205A (en) Biphenyl sulfonamides as dual angiotensin endothelin receptor antagonists
IL140437A0 (en) Pharmaceutical compositions comprising 2-quinolines
BG104916A (en) Calcilytic compounds
BR9908493A (en) Drilling of material with self-driven rotary cutters
ES2140232T3 (en) CALCIUM CARBIDE-BASED DESULFURING BLEND.
WO2005016847A8 (en) Material based on sialon's
TW334364B (en) Plating agent and preparation method for continuous casting
GB2417005A (en) Wear resistant component
GB0029774D0 (en) Clay composition
GR3036142T3 (en) Thiazolidine-4-carboxylic acid derivatives as cytoprotective agents
JPS5747843A (en) Damping composite magnesium material with high strength and wear resistance
AR011751A1 (en) PIQUERA MIXTURE FOR USE IN A CAST IRON PIQUERA
ZA931475B (en) Vibratable refractory composition.
PL352104A1 (en) Oral composition containing perlite
CA2295083A1 (en) Refractory composition for the prevention of alumina clogging
RU2000105811A (en) SLAG FORMING MIX FOR CONTINUOUS STEEL Pouring
ES474219A1 (en) Refractory ramming mix containing aluminum powder for metal melting furnaces
AU2554100A (en) Desulphurizing mixture based on calcium carbide and/or lime
KR970008713B1 (en) Process for the preparation of sic-tib2 composite sintering material
ES2141068T3 (en) COMPOSITION OF CARBON REFRACTORY MASS.
UA19324A (en) Carbide-steel
BR9714559A (en) Castable refractory composition and manufacturing methods of refractory bodies
DE59104599D1 (en) Plaster mix.
SU1076417A1 (en) Packed refractory composition

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 891431

Country of ref document: ES