DE4003879C1 - - Google Patents

Info

Publication number
DE4003879C1
DE4003879C1 DE4003879A DE4003879A DE4003879C1 DE 4003879 C1 DE4003879 C1 DE 4003879C1 DE 4003879 A DE4003879 A DE 4003879A DE 4003879 A DE4003879 A DE 4003879A DE 4003879 C1 DE4003879 C1 DE 4003879C1
Authority
DE
Germany
Prior art keywords
cao
powder
calcium oxide
steel
blowing
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.)
Expired - Fee Related
Application number
DE4003879A
Other languages
German (de)
English (en)
Inventor
Yeong-Huei Ling-Ya Tw Chung
Der-Shyang Heng-Shan Tsun Tw Cheng
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.)
CHINA STEEL CORP KAOHSIUNG CITY HSIAO-KANG TW
Original Assignee
CHINA STEEL CORP KAOHSIUNG CITY HSIAO-KANG TW
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 CHINA STEEL CORP KAOHSIUNG CITY HSIAO-KANG TW filed Critical CHINA STEEL CORP KAOHSIUNG CITY HSIAO-KANG TW
Application granted granted Critical
Publication of DE4003879C1 publication Critical patent/DE4003879C1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
DE4003879A 1990-02-08 1990-02-09 Expired - Fee Related DE4003879C1 (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/476,791 US5007958A (en) 1990-02-08 1990-02-08 Lime-based injection powder for steel-refining

Publications (1)

Publication Number Publication Date
DE4003879C1 true DE4003879C1 (cg-RX-API-DMAC7.html) 1991-07-18

Family

ID=23893261

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4003879A Expired - Fee Related DE4003879C1 (cg-RX-API-DMAC7.html) 1990-02-08 1990-02-09

Country Status (2)

Country Link
US (1) US5007958A (cg-RX-API-DMAC7.html)
DE (1) DE4003879C1 (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397379A (en) * 1993-09-22 1995-03-14 Oglebay Norton Company Process and additive for the ladle refining of steel
US6179895B1 (en) 1996-12-11 2001-01-30 Performix Technologies, Ltd. Basic tundish flux composition for steelmaking processes
US10184097B2 (en) * 2013-02-08 2019-01-22 Ecolab Usa Inc. Protective coatings for detersive agents and methods of forming and detecting the same
US12097489B1 (en) 2024-02-23 2024-09-24 King Saud University Expanded bed direct-contact system and heat exchanger and chemical reactor using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142887A (en) * 1978-02-21 1979-03-06 Reactive Metals & Alloys Corporation Steel ladle desulfurization compositions and methods of steel desulfurization
US4217134A (en) * 1979-06-13 1980-08-12 Molten Steel Products, Inc. Compositions and methods for desulphurizing molten ferrous metals
EP0064019A1 (de) * 1981-04-24 1982-11-03 Arbed S.A. Verfahren und Vorrichtung zum Entschwefeln von Eisenschmelzen
US4392887A (en) * 1981-12-04 1983-07-12 Arbed S.A. Method of desulfurizing an iron melt

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709062A1 (de) * 1977-03-02 1978-09-07 Sueddeutsche Kalkstickstoff Mittel und verfahren zur entschwefelung von eisenschmelzen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142887A (en) * 1978-02-21 1979-03-06 Reactive Metals & Alloys Corporation Steel ladle desulfurization compositions and methods of steel desulfurization
US4217134A (en) * 1979-06-13 1980-08-12 Molten Steel Products, Inc. Compositions and methods for desulphurizing molten ferrous metals
EP0064019A1 (de) * 1981-04-24 1982-11-03 Arbed S.A. Verfahren und Vorrichtung zum Entschwefeln von Eisenschmelzen
US4392887A (en) * 1981-12-04 1983-07-12 Arbed S.A. Method of desulfurizing an iron melt

Also Published As

Publication number Publication date
US5007958A (en) 1991-04-16

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee