EP0360223A3 - Agent and method for desulfurizing molten ferrous metal and a process for the production of this agent - Google Patents

Agent and method for desulfurizing molten ferrous metal and a process for the production of this agent Download PDF

Info

Publication number
EP0360223A3
EP0360223A3 EP19890117308 EP89117308A EP0360223A3 EP 0360223 A3 EP0360223 A3 EP 0360223A3 EP 19890117308 EP19890117308 EP 19890117308 EP 89117308 A EP89117308 A EP 89117308A EP 0360223 A3 EP0360223 A3 EP 0360223A3
Authority
EP
European Patent Office
Prior art keywords
agent
production
ferrous metal
molten ferrous
desulfurizing molten
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
EP19890117308
Other languages
German (de)
French (fr)
Other versions
EP0360223A2 (en
EP0360223B1 (en
Inventor
Helmut Dr. Lischka
Werner Dr. Gmöhling
Gerd Dr. Hieber
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.)
Evonik Operations GmbH
Original Assignee
SKW Trostberg 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 SKW Trostberg AG filed Critical SKW Trostberg AG
Priority to AT89117308T priority Critical patent/ATE92539T1/en
Publication of EP0360223A2 publication Critical patent/EP0360223A2/en
Publication of EP0360223A3 publication Critical patent/EP0360223A3/en
Application granted granted Critical
Publication of EP0360223B1 publication Critical patent/EP0360223B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

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)

Abstract

Die Erfindung betrifft Mittel zur Entschwefelung von Eisen, enthaltend Calciumcarbid und eine metallische Komponente, wobei Calciumcarbid und die metallische Komponente in solcher Form vorliegen, daß ihr Schüttgewicht und ihre Korngröße im selben Bereich liegen. The invention relates to agents for desulfurizing iron, containing calcium carbide and a metallic component, wherein Calcium carbide and the metallic component in such a form present that their bulk density and their grain size in the same Range.

Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung des Mittels sowie ein Verfahren zur Entschwefelung von Eisen­ schmelzen unter Verwendung des erfindungsgemäßen Mittels. The invention further relates to a method of manufacture of the agent and a process for desulfurizing iron melt using the agent according to the invention.

EP89117308A 1988-09-20 1989-09-19 Agent and method for desulfurizing molten ferrous metal and a process for the production of this agent Expired - Lifetime EP0360223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117308T ATE92539T1 (en) 1988-09-20 1989-09-19 AGENT FOR DESULPHURIZATION OF IRON MELT AND A PROCESS FOR THE PREPARATION OF THE AGENT, AND A METHOD OF DESULPHURIZATION OF IRON MELT WITH THE AGENT.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3831831A DE3831831C1 (en) 1988-09-20 1988-09-20
DE3831831 1988-09-20
IN758CA1989 IN172425B (en) 1988-09-20 1989-09-15

Publications (3)

Publication Number Publication Date
EP0360223A2 EP0360223A2 (en) 1990-03-28
EP0360223A3 true EP0360223A3 (en) 1991-05-29
EP0360223B1 EP0360223B1 (en) 1993-08-04

Family

ID=25872360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117308A Expired - Lifetime EP0360223B1 (en) 1988-09-20 1989-09-19 Agent and method for desulfurizing molten ferrous metal and a process for the production of this agent

Country Status (8)

Country Link
US (1) US4943317A (en)
EP (1) EP0360223B1 (en)
JP (1) JPH02185908A (en)
DE (1) DE3831831C1 (en)
ES (1) ES2044001T3 (en)
FI (1) FI91169C (en)
IN (1) IN172425B (en)
PT (1) PT91761B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002284A1 (en) * 1989-12-04 1991-06-06 Foseco Int Abrasion resistant medium for desulphurising molten iron - consists of fine grain magnesium particles having several coatings
US5149364A (en) * 1990-03-14 1992-09-22 Elkem Metals Company Desulfurization agent
ES2091429T3 (en) * 1991-04-02 1996-11-01 Pechiney Electrometallurgie DESULFURING AGENT FOR FOUNDRY CONSTITUTED BY CALCIUM CARBIDE AND ORGANIC BINDER.
FR2674867B1 (en) * 1991-04-02 1994-05-20 Pechiney Electrometallurgie DESULFURIZER FOR CAST IRON MADE OF COATED CALCIUM CARBIDE.
FR2679256B1 (en) * 1991-07-18 1994-08-12 Pechiney Electrometallurgie SULFURIZER FOR LIQUID CAST IRON BASED ON AGGLOMERATED CALCIUM CARBIDE.
FR2676457B1 (en) * 1991-05-16 1993-07-23 Pechiney Electrometallurgie DESULFURIZER FOR CAST IRON MADE OF MAGNESIUM AND CALCIUM CARBIDE COATED.
DE4226833A1 (en) * 1992-08-13 1994-02-17 Alfred Dr Freissmuth Desulphurising agent for pig iron and cast iron
DE4236619C2 (en) * 1992-10-29 1996-11-28 Air Liquide Process and regenerator for heating gases
ATA115194A (en) * 1994-06-08 1997-07-15 Donau Chemie Ag DESULFURING AGENT FOR BODY IRON AND CAST IRON MELTING
DE19546235C2 (en) * 1995-12-12 1997-12-11 Sueddeutsche Kalkstickstoff Desulphurising agent for the co-injection treatment of pig iron melts
US6372014B1 (en) 2000-04-10 2002-04-16 Rossborough Manufacturing Co. L.P. Magnesium injection agent for ferrous metal
US6352570B1 (en) 2000-04-10 2002-03-05 Rossborough Manufacturing Co., Lp Magnesium desulfurization agent
US6989040B2 (en) * 2002-10-30 2006-01-24 Gerald Zebrowski Reclaimed magnesium desulfurization agent
US7909860B2 (en) 2003-09-03 2011-03-22 Synthes Usa, Llc Bone plate with captive clips
US7731778B2 (en) * 2006-03-27 2010-06-08 Magnesium Technologies Corporation Scrap bale for steel making process
WO2012095471A2 (en) 2011-01-15 2012-07-19 DÖRING-FREISSMUTH, Mechthilde Agent for treating molten metals, method for the production and use thereof
DE102011008690A1 (en) * 2011-01-15 2012-07-19 Mechthilde Döring-Freißmuth Agent, useful for desulfurizing and/or dephosphorizing crude iron melt, comprises calcium oxide, optionally additional calcium-, magnesium-, or alkali-containing component and mineral and/or paraffinic oil
JP5930726B2 (en) * 2012-01-18 2016-06-08 大阪鋼灰株式会社 Refining agent
CN104531951B (en) * 2014-12-29 2017-01-18 芜湖金龙模具锻造有限责任公司 Hot metal desulfurizing agent

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422072A1 (en) * 1973-05-08 1974-12-05 Arbed MEANS FOR DESULFURIZING FELT IRON AND METHOD FOR THEIR PRODUCTION
DE2531047A1 (en) * 1975-07-11 1977-01-27 Kloeckner Werke Ag METHOD OF DESULFURIZING BIG IRON
DE2635651A1 (en) * 1975-11-14 1977-05-26 Aikoh Co DESULFURIZATION OF MOLTEN IRON
US4541867A (en) * 1984-03-20 1985-09-17 Amax Inc. Varnish-bonded carbon-coated magnesium and aluminum granules
EP0170407A1 (en) * 1984-06-27 1986-02-05 The BOC Group, Inc. Agents for the removal of impurities from a molten metal and a process for producing same
EP0226994A1 (en) * 1985-12-17 1987-07-01 SKW Trostberg Aktiengesellschaft Agent for desulphuration of molten iron and process for its production
EP0292205A1 (en) * 1987-05-22 1988-11-23 Foseco International Limited Metallurgical treatment agents

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964299A (en) * 1962-05-29 1964-07-22 Foseco Int Treatment of molten iron
JPS5054513A (en) * 1973-09-14 1975-05-14
JPS5065410A (en) * 1973-10-15 1975-06-03
US3998625A (en) * 1975-11-12 1976-12-21 Jones & Laughlin Steel Corporation Desulfurization method
DE2708424A1 (en) * 1977-02-26 1978-08-31 Sueddeutsche Kalkstickstoff Desulphurisation agent for iron melts - consists of alkaline earth carbonate(s) contg. a metal or alloy
US4094666A (en) * 1977-05-24 1978-06-13 Metal Research Corporation Method for refining molten iron and steels
DE2741588C2 (en) * 1977-09-15 1985-02-07 Skw Trostberg Ag, 8223 Trostberg Agent for desulphurising molten iron
DE3544562C2 (en) * 1985-12-17 1998-07-30 Sueddeutsche Kalkstickstoff Fine-grained agent for the desulfurization of molten iron

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422072A1 (en) * 1973-05-08 1974-12-05 Arbed MEANS FOR DESULFURIZING FELT IRON AND METHOD FOR THEIR PRODUCTION
DE2531047A1 (en) * 1975-07-11 1977-01-27 Kloeckner Werke Ag METHOD OF DESULFURIZING BIG IRON
DE2635651A1 (en) * 1975-11-14 1977-05-26 Aikoh Co DESULFURIZATION OF MOLTEN IRON
US4541867A (en) * 1984-03-20 1985-09-17 Amax Inc. Varnish-bonded carbon-coated magnesium and aluminum granules
EP0170407A1 (en) * 1984-06-27 1986-02-05 The BOC Group, Inc. Agents for the removal of impurities from a molten metal and a process for producing same
EP0226994A1 (en) * 1985-12-17 1987-07-01 SKW Trostberg Aktiengesellschaft Agent for desulphuration of molten iron and process for its production
EP0292205A1 (en) * 1987-05-22 1988-11-23 Foseco International Limited Metallurgical treatment agents

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THYSSEN TECHNISCHE BERICHTE Nr. 1, 1987, Seiten 21-33, Duisburg, DE; H.P. HAASTERT et al.: "Entwicklungen der Injektionsmetallurgie bei der Stahlherstellung" *

Also Published As

Publication number Publication date
EP0360223A2 (en) 1990-03-28
FI894436A0 (en) 1989-09-19
FI91169C (en) 1994-05-25
DE3831831C1 (en) 1989-11-02
PT91761A (en) 1990-03-30
ES2044001T3 (en) 1994-01-01
EP0360223B1 (en) 1993-08-04
IN172425B (en) 1993-07-24
US4943317A (en) 1990-07-24
PT91761B (en) 1995-05-31
JPH02185908A (en) 1990-07-20
FI894436A (en) 1990-03-21
JPH0438808B2 (en) 1992-06-25
FI91169B (en) 1994-02-15

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