IT1155249B - Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico - Google Patents

Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico

Info

Publication number
IT1155249B
IT1155249B IT40430/81A IT4043081A IT1155249B IT 1155249 B IT1155249 B IT 1155249B IT 40430/81 A IT40430/81 A IT 40430/81A IT 4043081 A IT4043081 A IT 4043081A IT 1155249 B IT1155249 B IT 1155249B
Authority
IT
Italy
Prior art keywords
addition
sodium carbonate
cast iron
materials containing
containing sodium
Prior art date
Application number
IT40430/81A
Other languages
English (en)
Italian (it)
Other versions
IT8140430A0 (it
IT8140430A1 (it
Inventor
Arno' Mario Dott
Costa Bruno Ing
Original Assignee
Italsider Spa Centro Siderurgi
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 Italsider Spa Centro Siderurgi filed Critical Italsider Spa Centro Siderurgi
Priority to IT40430/81A priority Critical patent/IT1155249B/it
Publication of IT8140430A0 publication Critical patent/IT8140430A0/it
Priority to US06/379,082 priority patent/US4405364A/en
Priority to JP57082527A priority patent/JPS581010A/ja
Priority to DE3218975A priority patent/DE3218975A1/de
Priority to BE0/208142A priority patent/BE893249A/fr
Priority to FR8208850A priority patent/FR2506330B1/fr
Priority to GB08214534A priority patent/GB2101636B/en
Publication of IT8140430A1 publication Critical patent/IT8140430A1/it
Application granted granted Critical
Publication of IT1155249B publication Critical patent/IT1155249B/it

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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
IT40430/81A 1981-05-20 1981-05-20 Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico IT1155249B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT40430/81A IT1155249B (it) 1981-05-20 1981-05-20 Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico
US06/379,082 US4405364A (en) 1981-05-20 1982-05-17 Process of refining iron in oxygen converters with additions of materials containing sodium carbonate
JP57082527A JPS581010A (ja) 1981-05-20 1982-05-18 酸素コンバ−タ−において鉄を精錬する方法
DE3218975A DE3218975A1 (de) 1981-05-20 1982-05-19 Verfahren zum frischen von eisen in sauerstoffkonvertern mit zusaetzen natriumcarbonat-haltiger materialien
BE0/208142A BE893249A (fr) 1981-05-20 1982-05-19 Procede d'affinage du fer dans des convertisseurs a l'oxygene avec des additions de matieres contenant du carbonate de sodium
FR8208850A FR2506330B1 (fr) 1981-05-20 1982-05-19 Procede d'affinage du fer dans des convertisseurs a oxygene avec addition de matieres contenant du carbonate de sodium
GB08214534A GB2101636B (en) 1981-05-20 1982-05-19 Refining iron or steel in oxygen converters with the addition of at least one compound of sodium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT40430/81A IT1155249B (it) 1981-05-20 1981-05-20 Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico

Publications (3)

Publication Number Publication Date
IT8140430A0 IT8140430A0 (it) 1981-05-20
IT8140430A1 IT8140430A1 (it) 1982-11-20
IT1155249B true IT1155249B (it) 1987-01-21

Family

ID=11249532

Family Applications (1)

Application Number Title Priority Date Filing Date
IT40430/81A IT1155249B (it) 1981-05-20 1981-05-20 Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico

Country Status (3)

Country Link
JP (1) JPS581010A (fr)
BE (1) BE893249A (fr)
IT (1) IT1155249B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217515A (ja) * 1985-03-22 1986-09-27 Nippon Kokan Kk <Nkk> 極低燐鋼の溶製方法

Also Published As

Publication number Publication date
JPS581010A (ja) 1983-01-06
IT8140430A0 (it) 1981-05-20
BE893249A (fr) 1982-09-16
IT8140430A1 (it) 1982-11-20

Similar Documents

Publication Publication Date Title
IS1288B6 (is) Framleiðsla málms með rafgreiningu í bræddri raflausn
IT1195274B (it) Prodotto refrattario fuso ad alto tenore di ossido di zirconio
IS2810A7 (is) Málmbræðsla með rafgreiningu á bráðinni raflausn (jónuð lausn)
IT8448151A0 (it) Paniera di colata continua con funzioni di reattore per trattamenti fuori forno
IT8467223A0 (it) Refrattari contenente grafite
GB2083450B (en) Reducing iron content of raw materials
ES549594A0 (es) Perfeccionamientos introducidos en la fabricacion de ladri- llos refractarios
FR2534927B1 (fr) Composition de blanchiment et de blanchissage stabilisee
IT1155249B (it) Processo di affinanazione della ghisa in convertitori ad ossigeno con aggiunta di materiali contenenti carbonato sodico
IT1193472B (it) Processo per la produzione di ghisa vermicolare
GB8300562D0 (en) Measuring content of hydrogen in molten metal
ES547822A0 (es) Draga flotante con contrapeso
IT8212439A0 (it) Processo di affinazione della ghisa in convertitori ad ossigeno con aggiunte di materiali contenenti carbonato sodico
GB2019734B (en) Degassing of molten metal
DE3570570D1 (en) Improvements relating to image enhancement
GB8429564D0 (en) Taking sample of molten metal
IT1153269B (it) Raffinazione di ferrocromo
FI852721A7 (fi) Menetelmä runsaasti boorihappoa sisältävien jäteliemien kiinteyttämiseksi.
AU532932B2 (en) Post-refining of basic oxygen steel
JPS53121012A (en) Cast refractories of high zirconia content
GB8324822D0 (en) Voltametric determination of oxygen
JPS56120767A (en) Benzoxazolylstilbenes* their manufacture and their application to optically brightening agent
GB2068430B (en) Stable solutions of optical brighteners
GB2064321B (en) Injectable solutions of sodium dicloxacillin
IT1170309B (it) Argano munito di mezzi di lettura e di arresto