ES8302104A1 - "procedimiento para la preparacion de agentes desulfurantes para masas fundidas de arrabio y acero". - Google Patents

"procedimiento para la preparacion de agentes desulfurantes para masas fundidas de arrabio y acero".

Info

Publication number
ES8302104A1
ES8302104A1 ES510769A ES510769A ES8302104A1 ES 8302104 A1 ES8302104 A1 ES 8302104A1 ES 510769 A ES510769 A ES 510769A ES 510769 A ES510769 A ES 510769A ES 8302104 A1 ES8302104 A1 ES 8302104A1
Authority
ES
Spain
Prior art keywords
mixture
cao
calcium oxide
desulfurizing agents
steel melts
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
Application number
ES510769A
Other languages
English (en)
Other versions
ES510769A0 (es
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES510769A0 publication Critical patent/ES510769A0/es
Publication of ES8302104A1 publication Critical patent/ES8302104A1/es
Expired 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
    • 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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

_(PROCEDIMIENTO PARA LA PREPARACION DE AGENTES DELFURANTES PARA MASAS FUNDIDAS DE ARRADIO Y ACERO . CONSISTE EN PREPARAR UNA MEZCLA A BASE DE CARBURO CALCICO Y OXIDO CALCICO, QUE SE DEJA SOLIDIFICAR. MIENTRAS EL BLOQUE TIENE UNA TEMPERATURA MEDIA MAYOR DE 400<025>C SE TRITURA A TAMAÑOS DE GRANO MENORES DE 150 M/M Y A LA MEZCLA DESMENUZADA SE LE AÑADE OXIDO CALCICO. A CONTINUACION LA MEZCLA SE MUELE CON INTENSIVO ENTREMEZCLADO CON CARBONO LIBRE Y CARBONATO, EN PRESENCIA DE AIRE, O NITROGENO, CON UN CONTENIDO DE HUMEDAD DE 5 A 20 G/M A TEMPERATURAS POR DEBAJO DE 100<025>C Y TAMAÑO DE GRANO DE 10 M/M.
ES510769A 1981-03-24 1982-03-24 "procedimiento para la preparacion de agentes desulfurantes para masas fundidas de arrabio y acero". Expired ES8302104A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813111509 DE3111509A1 (de) 1981-03-24 1981-03-24 Verfahren zur herstellung von entschwefelungsmitteln fuer roheisen- oder stahlschmelzen

Publications (2)

Publication Number Publication Date
ES510769A0 ES510769A0 (es) 1983-02-01
ES8302104A1 true ES8302104A1 (es) 1983-02-01

Family

ID=6128139

Family Applications (1)

Application Number Title Priority Date Filing Date
ES510769A Expired ES8302104A1 (es) 1981-03-24 1982-03-24 "procedimiento para la preparacion de agentes desulfurantes para masas fundidas de arrabio y acero".

Country Status (10)

Country Link
US (1) US4400292A (es)
EP (1) EP0061011B1 (es)
JP (1) JPS57169010A (es)
AT (1) ATE9596T1 (es)
BR (1) BR8201618A (es)
CA (1) CA1184384A (es)
DD (1) DD202183A5 (es)
DE (2) DE3111509A1 (es)
ES (1) ES8302104A1 (es)
ZA (1) ZA821939B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535280A1 (de) * 1985-10-03 1987-04-09 Hoechst Ag Entschwefelungsgemisch fuer metallschmelzen, ein verfahren zu seiner herstellung und seine verwendung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1408188A1 (de) * 1959-12-19 1968-10-17 Hoesch Ag Verfahren zur Entschwefelung von Roheisenbaedern
AT264560B (de) * 1966-08-25 1968-09-10 Gustav Dipl Ing Wolfram Basisches Stahlherstellungsverfahren
DE2037758C3 (de) * 1970-07-30 1979-08-02 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von CaIciumkarbid zur Entschwefelung von Metallschmelzen
LU63607A1 (es) * 1971-07-26 1973-02-05
DE2252795C3 (de) * 1972-10-27 1982-09-09 Skw Trostberg Ag, 8223 Trostberg Entschwefelungsmittel für Roheisen- und Ferrolegierungsschmelzen
DE2326539C3 (de) * 1973-05-24 1975-11-13 Sueddeutsche Kalkstickstoff-Werke Ag, 8223 Trostberg Verfahren zur Herstellung eines Entschwefelungsgemisches für Eisenschmelzen aus Calciumcarbid und mindestens einem wasserhaltigen Stoff
IT1047585B (it) * 1975-09-26 1980-10-20 Centro Speriment Metallurg Perfezionamento alla disossidazione e desolforazione dell acciaio
DE2741588C2 (de) * 1977-09-15 1985-02-07 Skw Trostberg Ag, 8223 Trostberg Mittel zum Entschwefeln von Eisenschmelzen
DE2919324A1 (de) * 1979-05-14 1980-12-04 Hoechst Ag Entschweflungsmittel fuer roheisen- und stahlschmelzen sowie ein verfahren zu ihrer herstellung
DE2920353A1 (de) * 1979-05-19 1980-11-27 Hoechst Ag Verfahren zur herstellung von entschweflungsmitteln fuer roheisen- oder stahlschmelzen
DE2952686A1 (de) * 1979-12-29 1981-07-02 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von entschwefelungsmitteln fuer roheisen- oder stahlschmelzen
ES497686A0 (es) * 1979-12-29 1981-11-01 Hoechst Ag Procedimiento para la preparacion de un agente para la de- sulfuracion de masas fundidas metalicas

Also Published As

Publication number Publication date
DE3260809D1 (en) 1984-10-31
ZA821939B (en) 1983-02-23
EP0061011B1 (de) 1984-09-26
JPS57169010A (en) 1982-10-18
US4400292A (en) 1983-08-23
CA1184384A (en) 1985-03-26
ES510769A0 (es) 1983-02-01
EP0061011A1 (de) 1982-09-29
DE3111509A1 (de) 1982-10-07
JPH0135883B2 (es) 1989-07-27
ATE9596T1 (de) 1984-10-15
DD202183A5 (de) 1983-08-31
BR8201618A (pt) 1983-02-08

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