FR2392125A1 - Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle - Google Patents

Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle

Info

Publication number
FR2392125A1
FR2392125A1 FR7635794A FR7635794A FR2392125A1 FR 2392125 A1 FR2392125 A1 FR 2392125A1 FR 7635794 A FR7635794 A FR 7635794A FR 7635794 A FR7635794 A FR 7635794A FR 2392125 A1 FR2392125 A1 FR 2392125A1
Authority
FR
France
Prior art keywords
removal
ladle
sulphur
phosphorus
liquid iron
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.)
Withdrawn
Application number
FR7635794A
Other languages
French (fr)
Inventor
J G Yaroslavtsev
L I Krupman
A E Sochnev
V I Varava
I D Boldyrev
V P Osadchy
M I Bulash
N P Kirichenko
J F Nikulin
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.)
DO NII CHERNOJ METALLURGII
Original Assignee
DO NII CHERNOJ METALLURGII
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 DO NII CHERNOJ METALLURGII filed Critical DO NII CHERNOJ METALLURGII
Priority to FR7635794A priority Critical patent/FR2392125A1/en
Publication of FR2392125A1 publication Critical patent/FR2392125A1/en
Withdrawn legal-status Critical Current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
    • 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
    • C21C7/076—Use of slags or fluxes as treating agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The refining compsn. for the removal of S, non-metallic inclusions, and also P from iron melts, contains Fe ore or Fe sinter apart from an Al contg. components, Na nitrate, Ca oxide and Ca fluoride,. Pref. the slag is composed of (wt.%) 8-20 Al contg. component, 15-25 Na nitrate, 5-17 Ca fluoride, 10-45 Fe ore or sinter, balance Ca oxide. The compsn. forms a slag and reduces both the S and P content of the Fe melt, and does not require the use of an electric furnace for the production of the refining agent.
FR7635794A 1976-11-26 1976-11-26 Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle Withdrawn FR2392125A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7635794A FR2392125A1 (en) 1976-11-26 1976-11-26 Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7635794A FR2392125A1 (en) 1976-11-26 1976-11-26 Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle

Publications (1)

Publication Number Publication Date
FR2392125A1 true FR2392125A1 (en) 1978-12-22

Family

ID=9180385

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7635794A Withdrawn FR2392125A1 (en) 1976-11-26 1976-11-26 Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle

Country Status (1)

Country Link
FR (1) FR2392125A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272991A1 (en) 2009-07-06 2011-01-12 SKW Stahl-Metallurgie GmbH Method and agent for treating raw iron desulphurisation slags

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272991A1 (en) 2009-07-06 2011-01-12 SKW Stahl-Metallurgie GmbH Method and agent for treating raw iron desulphurisation slags
EP2275580A1 (en) * 2009-07-06 2011-01-19 SKW Stahl-Metallurgie GmbH Method and agent for treating raw iron desulphurisation slags

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Legal Events

Date Code Title Description
ST Notification of lapse