FR2432550A1 - Procede pour la fabrication d'un melange de desulfuration pulverulent facilement fluidifiable - Google Patents

Procede pour la fabrication d'un melange de desulfuration pulverulent facilement fluidifiable

Info

Publication number
FR2432550A1
FR2432550A1 FR7917078A FR7917078A FR2432550A1 FR 2432550 A1 FR2432550 A1 FR 2432550A1 FR 7917078 A FR7917078 A FR 7917078A FR 7917078 A FR7917078 A FR 7917078A FR 2432550 A1 FR2432550 A1 FR 2432550A1
Authority
FR
France
Prior art keywords
manufacture
pulverulated
easily flowable
mixture
desulfurization mixture
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.)
Pending
Application number
FR7917078A
Other languages
English (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.)
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
Publication of FR2432550A1 publication Critical patent/FR2432550A1/fr
Pending 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
    • 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)
  • 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)
  • Lubricants (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

a. Procédé pour la fabrication de mélanges désulfurants pulvérulents facilement fluidifiables pour la fusion du fer brut et de l'acier. b. Procédé caractérisé en ce que le mélange est broyé avec environ 3 à 20 % en poids de carbone pendant 6 à 30 minutes. c. Mélange optimal pour la désulfuration de fer ou d'acier en fusion.
FR7917078A 1978-08-04 1979-06-29 Procede pour la fabrication d'un melange de desulfuration pulverulent facilement fluidifiable Pending FR2432550A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2834216 1978-08-04

Publications (1)

Publication Number Publication Date
FR2432550A1 true FR2432550A1 (fr) 1980-02-29

Family

ID=6046218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917078A Pending FR2432550A1 (fr) 1978-08-04 1979-06-29 Procede pour la fabrication d'un melange de desulfuration pulverulent facilement fluidifiable

Country Status (9)

Country Link
US (1) US4260413A (fr)
JP (1) JPS5521599A (fr)
BE (1) BE878016A (fr)
CA (1) CA1140907A (fr)
FR (1) FR2432550A1 (fr)
GB (1) GB2032461A (fr)
NL (1) NL7905292A (fr)
SE (1) SE7906086L (fr)
ZA (1) ZA793547B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042033A1 (fr) * 1980-06-18 1981-12-23 SKW Trostberg Aktiengesellschaft Agent de désulfuration
EP0398674A2 (fr) * 1989-05-18 1990-11-22 Elkem Metals Company Agent désulfurant

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952686A1 (de) * 1979-12-29 1981-07-02 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von entschwefelungsmitteln fuer roheisen- oder stahlschmelzen
JPS56158827A (en) * 1980-05-10 1981-12-07 Nippon Carbide Ind Co Ltd Powdered composition for desulfurizing agent
JPS56163213A (en) * 1980-05-20 1981-12-15 Nippon Carbide Ind Co Ltd Desulfurizer powder composition for molten iron
DE3110569A1 (de) * 1981-03-18 1982-12-30 Skw Trostberg Ag, 8223 Trostberg Verfahren zur verhinderung des ueberschaeumens beim frischen von roheisen sowie zur erniedrigung des phosphorgehaltes, mittel und vorrichtung zur durchfuehrung des verfahrens
US4572737A (en) * 1984-06-27 1986-02-25 The Boc Group, Inc. Agents for the removal of impurities from a molten metal and a process for producing same
BR8606249A (pt) * 1985-12-17 1987-09-29 Sueddeutsche Kalkstickstoff Composicao finamente granulada para a dessulfuracao de ferro fundido e processo para sua preparacao
US5078784A (en) * 1990-03-14 1992-01-07 Elkem Metals Company Desulfurization agent
US4941914A (en) * 1989-05-18 1990-07-17 Elkem Metals Company Desulfurization agent
US5149364A (en) * 1990-03-14 1992-09-22 Elkem Metals Company Desulfurization agent
CA2054244C (fr) * 1991-10-25 2000-08-01 Bruce James Barker Reactif de desulfuration en poudre et procede d'utilisation connexe
JP2003046094A (ja) * 2001-07-27 2003-02-14 Sanyo Electric Co Ltd ショットキーバリアダイオードおよびその製造方法
US6989040B2 (en) * 2002-10-30 2006-01-24 Gerald Zebrowski Reclaimed magnesium desulfurization agent
US20050056120A1 (en) * 2003-09-15 2005-03-17 Flores-Morales Jose Ignacio Desulphurization of ferrous materials using sodium silicate
US20050066772A1 (en) * 2003-09-26 2005-03-31 Flores-Morales Jose Ignacio Desulphurization of ferrous materials using glass cullet

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747029C (de) * 1939-06-20 1944-09-04 Thyssen Huette Ag Verfahren zur Entschwefelung von Roheisenbaedern
FR1010183A (fr) * 1950-01-21 1952-06-09 Stora Koparbergs Aktiebolag Procédé de désulfuration du fer et des alliages ferreux
US2863755A (en) * 1957-04-22 1958-12-09 Union Carbide Corp Oil-treated calcium carbide for desulfurization of iron
FR2007154A1 (fr) * 1968-04-29 1970-01-02 Suddeutsch Kalkstickstof
FR1598770A (fr) * 1967-12-29 1970-07-06
FR2160526A1 (fr) * 1971-11-17 1973-06-29 Magnesium Elektron Ltd
DE2355736A1 (de) * 1972-11-09 1974-05-22 Nippon Steel Corp Verfahren zum entschwefeln von roheisen
DE2301987A1 (de) * 1973-01-16 1974-07-25 Polysius Ag Verfahren zum entschwefeln von fluessigem roheisen
FR2230743A1 (fr) * 1973-05-24 1974-12-20 Sueddeutsche Kalkstickstoff
DE2337957A1 (de) * 1973-07-26 1975-02-06 Polysius Ag Verfahren zum entschwefeln von fluessigem roheisen
GB1415150A (en) * 1972-11-16 1975-11-26 Magnesium Elektron Ltd Addition of magnesium to molten metal
US3955966A (en) * 1974-03-06 1976-05-11 August Thyssen-Hutte Ag Method for dispensing a fluidizable solid from a pressure vessel
FR2297245A1 (fr) * 1975-01-08 1976-08-06 Sueddeutsche Kalkstickstoff Moyen pour desulfurer le fer en fusion et procede pour son utilisation
DE2708424A1 (de) * 1977-02-26 1978-08-31 Sueddeutsche Kalkstickstoff Feinkoernige entschwefelungsgemische auf basis von erdalkalikarbonaten
DE2741588A1 (de) * 1977-09-15 1979-03-29 Sueddeutsche Kalkstickstoff Mittel zum entschwefeln von eisenschmelzen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957502A (en) * 1971-11-17 1976-05-18 Magnesium Elektron Limited Addition of magnesium to molten metal
CH573276A5 (fr) * 1974-01-29 1976-03-15 Concast Ag
JPS5254609A (en) * 1975-10-31 1977-05-04 Nippon Carbide Ind Co Ltd Composite for desulfurizing molten cast iron
JPS5261110A (en) * 1975-11-14 1977-05-20 Aikoh Co Desulfurization of iron melt

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747029C (de) * 1939-06-20 1944-09-04 Thyssen Huette Ag Verfahren zur Entschwefelung von Roheisenbaedern
FR1010183A (fr) * 1950-01-21 1952-06-09 Stora Koparbergs Aktiebolag Procédé de désulfuration du fer et des alliages ferreux
US2863755A (en) * 1957-04-22 1958-12-09 Union Carbide Corp Oil-treated calcium carbide for desulfurization of iron
FR1598770A (fr) * 1967-12-29 1970-07-06
FR2007154A1 (fr) * 1968-04-29 1970-01-02 Suddeutsch Kalkstickstof
FR2160526A1 (fr) * 1971-11-17 1973-06-29 Magnesium Elektron Ltd
DE2355736A1 (de) * 1972-11-09 1974-05-22 Nippon Steel Corp Verfahren zum entschwefeln von roheisen
GB1415150A (en) * 1972-11-16 1975-11-26 Magnesium Elektron Ltd Addition of magnesium to molten metal
DE2301987A1 (de) * 1973-01-16 1974-07-25 Polysius Ag Verfahren zum entschwefeln von fluessigem roheisen
FR2230743A1 (fr) * 1973-05-24 1974-12-20 Sueddeutsche Kalkstickstoff
DE2337957A1 (de) * 1973-07-26 1975-02-06 Polysius Ag Verfahren zum entschwefeln von fluessigem roheisen
US3955966A (en) * 1974-03-06 1976-05-11 August Thyssen-Hutte Ag Method for dispensing a fluidizable solid from a pressure vessel
FR2297245A1 (fr) * 1975-01-08 1976-08-06 Sueddeutsche Kalkstickstoff Moyen pour desulfurer le fer en fusion et procede pour son utilisation
DE2708424A1 (de) * 1977-02-26 1978-08-31 Sueddeutsche Kalkstickstoff Feinkoernige entschwefelungsgemische auf basis von erdalkalikarbonaten
DE2741588A1 (de) * 1977-09-15 1979-03-29 Sueddeutsche Kalkstickstoff Mittel zum entschwefeln von eisenschmelzen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042033A1 (fr) * 1980-06-18 1981-12-23 SKW Trostberg Aktiengesellschaft Agent de désulfuration
EP0398674A2 (fr) * 1989-05-18 1990-11-22 Elkem Metals Company Agent désulfurant
EP0398674A3 (fr) * 1989-05-18 1991-04-10 Elkem Metals Company Agent désulfurant

Also Published As

Publication number Publication date
ZA793547B (en) 1980-12-31
JPS5521599A (en) 1980-02-15
NL7905292A (nl) 1980-02-06
US4260413A (en) 1981-04-07
GB2032461A (en) 1980-05-08
SE7906086L (sv) 1980-02-05
BE878016A (fr) 1979-12-03
CA1140907A (fr) 1983-02-08

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