ES8305421A1 - Procedimiento para reducir el contenido de hierro de las escorias ricas en cao que se producen durante la desulfuracion de arrabio. - Google Patents

Procedimiento para reducir el contenido de hierro de las escorias ricas en cao que se producen durante la desulfuracion de arrabio.

Info

Publication number
ES8305421A1
ES8305421A1 ES513868A ES513868A ES8305421A1 ES 8305421 A1 ES8305421 A1 ES 8305421A1 ES 513868 A ES513868 A ES 513868A ES 513868 A ES513868 A ES 513868A ES 8305421 A1 ES8305421 A1 ES 8305421A1
Authority
ES
Spain
Prior art keywords
iron
desulphurisation
lowering
course
iron content
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
ES513868A
Other languages
English (en)
Other versions
ES513868A0 (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.)
Thyssen AG
Original Assignee
Thyssen AG
August Thyssen Huette 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 Thyssen AG, August Thyssen Huette AG filed Critical Thyssen AG
Publication of ES513868A0 publication Critical patent/ES513868A0/es
Publication of ES8305421A1 publication Critical patent/ES8305421A1/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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PROCEDIMIENTO PARA REDUCIR EL CONTENIDO DE HIERRO DE LAS ESCORIAS RICAS EN CaO QUE SE PRODUCEN DURANTE LA DESULFURACION DE ARRABIO. SE AÑADE ESPATO DE FLUOR FINAMENTE MOLIDO A LA MASA FUNDIDA DE HIERRO BRUTO, PREFERENTEMENTE MEDIANTE INSUFLACION EN EL HIERRO BRUTO, ANTES DEL COMIENZO DEL TRATAMIENTO DE DESULFURACION Y EN UNA CANTIDAD DE 0,05 A 1,5 KG POR TONELADA DE HIERRO BRUTO, DE FORMA QUE NO SE PRODUZCA NINGUNA LICUACION DE LA ESCORIA.
ES513868A 1981-07-27 1982-07-09 Procedimiento para reducir el contenido de hierro de las escorias ricas en cao que se producen durante la desulfuracion de arrabio. Expired ES8305421A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810105910 EP0070912B1 (de) 1981-07-27 1981-07-27 Verfahren zur Verminderung des Eisengehaltes von bei der Entschwefelung von Roheisen entstehenden CaO-reichen Schlacken

Publications (2)

Publication Number Publication Date
ES513868A0 ES513868A0 (es) 1983-04-16
ES8305421A1 true ES8305421A1 (es) 1983-04-16

Family

ID=8187835

Family Applications (1)

Application Number Title Priority Date Filing Date
ES513868A Expired ES8305421A1 (es) 1981-07-27 1982-07-09 Procedimiento para reducir el contenido de hierro de las escorias ricas en cao que se producen durante la desulfuracion de arrabio.

Country Status (11)

Country Link
US (1) US4431444A (es)
EP (1) EP0070912B1 (es)
JP (1) JPS5867814A (es)
KR (1) KR890002979B1 (es)
AT (1) ATE11572T1 (es)
AU (1) AU553026B2 (es)
BR (1) BR8204349A (es)
CA (1) CA1193441A (es)
DE (1) DE3168626D1 (es)
ES (1) ES8305421A1 (es)
IN (1) IN156686B (es)

Families Citing this family (3)

* 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
US4738715A (en) * 1987-01-02 1988-04-19 Hart Metals, Inc. Desulfurizing reagent for hot metal
UA32411C2 (uk) * 1991-08-28 2000-12-15 Тіссен Шталь Аг Спосіб обробки розплавів доменного чавуну в резервуарі (варіанти)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750334C (de) * 1937-12-07 1945-01-05 Verfahren zur Aufarbeitung von bei der Sodaentschwefelung des Roheisens anfallenden Schlacken
BE669135A (es) * 1965-09-02 1966-03-02
AT313333B (de) * 1970-02-20 1974-02-11 Voest Ag Verfahren zum Frischen von flüssigem Roheisen in einer Sprühfrischanlage sowie Sprühfrischanlage zur Durchführung des Verfahrens
US3820768A (en) * 1971-07-19 1974-06-28 Pennsylvania Engineering Corp Steel conversion method and apparatus
US3827880A (en) * 1971-12-07 1974-08-06 British Steel Corp Inclusion of hydroboracite in additive composition and use thereof in steel refining
JPS5832209B2 (ja) * 1976-04-15 1983-07-12 株式会社神戸製鋼所 改質転炉スラグおよび改質法

Also Published As

Publication number Publication date
AU553026B2 (en) 1986-07-03
KR840000651A (ko) 1984-02-25
IN156686B (es) 1985-10-12
CA1193441A (en) 1985-09-17
EP0070912A1 (de) 1983-02-09
ES513868A0 (es) 1983-04-16
ATE11572T1 (de) 1985-02-15
DE3168626D1 (en) 1985-03-14
JPS5867814A (ja) 1983-04-22
EP0070912B1 (de) 1985-01-30
US4431444A (en) 1984-02-14
AU8643782A (en) 1984-10-18
KR890002979B1 (ko) 1989-08-16
BR8204349A (pt) 1983-07-19
JPS6364484B2 (es) 1988-12-12

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