FR2260622A1 - Desulphurising crude molten iron - using a plastic extrusion contg. a desulphurising agent - Google Patents

Desulphurising crude molten iron - using a plastic extrusion contg. a desulphurising agent

Info

Publication number
FR2260622A1
FR2260622A1 FR7503675A FR7503675A FR2260622A1 FR 2260622 A1 FR2260622 A1 FR 2260622A1 FR 7503675 A FR7503675 A FR 7503675A FR 7503675 A FR7503675 A FR 7503675A FR 2260622 A1 FR2260622 A1 FR 2260622A1
Authority
FR
France
Prior art keywords
desulphurising
agent
contg
bath
molten 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.)
Granted
Application number
FR7503675A
Other languages
French (fr)
Other versions
FR2260622B3 (en
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.)
Rheinische Kalksteinwerke GmbH
Original Assignee
Rheinische Kalksteinwerke GmbH
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 Rheinische Kalksteinwerke GmbH filed Critical Rheinische Kalksteinwerke GmbH
Publication of FR2260622A1 publication Critical patent/FR2260622A1/en
Application granted granted Critical
Publication of FR2260622B3 publication Critical patent/FR2260622B3/fr
Granted 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • 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
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

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

Abstract

In the desulphurising of iron melts by the high speed advance into the bottom zone of the melt of at least one flexible extrusion consisting of a thermally decomposable binder and a finely divided desulphurising agent of a mixture of such agents, the decomposition product of the binder or its reaction products brings about an automatic mixing of the bath as well as reducing reaction conditions therein. Pref. a number of extrusions is passed simultaneously through the surface of the bath at different positions. The process reduces the slag-metal oxygen potential so that desulphurising is more effective because of the reducing conditions and gives effective mixing and thereof more uniform desulphurising without the risks involved in introducing the desulphurising agents in a stream of potentially explosive hydrocarbon gas e.g. natural gas.
FR7503675A 1974-02-08 1975-02-06 Desulphurising crude molten iron - using a plastic extrusion contg. a desulphurising agent Granted FR2260622A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7401783A NL7401783A (en) 1974-02-08 1974-02-08 PROCESS FOR DESULFURIZING IRON MELTES, THE DESULSULFERS FOR PERFORMING THIS PROCEDURE.

Publications (2)

Publication Number Publication Date
FR2260622A1 true FR2260622A1 (en) 1975-09-05
FR2260622B3 FR2260622B3 (en) 1977-10-21

Family

ID=19820716

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503675A Granted FR2260622A1 (en) 1974-02-08 1975-02-06 Desulphurising crude molten iron - using a plastic extrusion contg. a desulphurising agent

Country Status (3)

Country Link
BE (1) BE825198A (en)
FR (1) FR2260622A1 (en)
NL (1) NL7401783A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559589A1 (en) * 1992-03-05 1993-09-08 Pechiney Electrometallurgie Cored wire with a plastic sheath for additions to metal baths
EP0600236A1 (en) * 1992-10-30 1994-06-08 SKW Trostberg Aktiengesellschaft Means for the treatment of metal melt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559589A1 (en) * 1992-03-05 1993-09-08 Pechiney Electrometallurgie Cored wire with a plastic sheath for additions to metal baths
FR2688231A1 (en) * 1992-03-05 1993-09-10 Pechiney Electrometallurgie COMPOSITE WIRE WITH PLASTIC SHEATH FOR ADDITIONS TO METALLIC BATHS.
US5352271A (en) * 1992-03-05 1994-10-04 Pechiney Electrometallurgie Composite wire with a plastic sheath for additions to metallic baths
EP0600236A1 (en) * 1992-10-30 1994-06-08 SKW Trostberg Aktiengesellschaft Means for the treatment of metal melt

Also Published As

Publication number Publication date
NL7401783A (en) 1975-08-12
BE825198A (en) 1975-05-29
FR2260622B3 (en) 1977-10-21

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