EP1984526A4 - Conditioned quicklime for injection to a molten bath of a steel-making vessel - Google Patents

Conditioned quicklime for injection to a molten bath of a steel-making vessel

Info

Publication number: EP1984526A4
Authority: EP; European Patent Office
Prior art keywords: quicklime; conditioned; injection; steel; molten bath
Prior art date: 2006-02-09
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

EP06734571.0A

Other languages

German (de)

French (fr)

Other versions

EP1984526A1 (en

Inventor

Richard J Brelowski

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.)

CARMEUSE NORTH AMERICA

Original Assignee

CARMEUSE NORTH AMERICA

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.)

2006-02-09

Filing date

2006-02-09

Publication date

2014-10-15

2006-02-09 Application filed by CARMEUSE NORTH AMERICA filed Critical CARMEUSE NORTH AMERICA

2008-10-29 Publication of EP1984526A1 publication Critical patent/EP1984526A1/en

2014-10-15 Publication of EP1984526A4 publication Critical patent/EP1984526A4/en

Status Withdrawn legal-status Critical Current

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
- C21C7/076—Use of slags or fluxes as treating agents
- 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
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
- 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
- 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
- C21C7/068—Decarburising
- 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)
Treatment Of Steel In Its Molten State (AREA)

EP06734571.0A 2006-02-09 2006-02-09 Conditioned quicklime for injection to a molten bath of a steel-making vessel Withdrawn EP1984526A4 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US2006/004410 WO2007092006A1 (en)	2006-02-09	2006-02-09	Conditioned quicklime for injection to a molten bath of a steel-making vessel

Publications (2)

Publication Number	Publication Date
EP1984526A1 EP1984526A1 (en)	2008-10-29
EP1984526A4 true EP1984526A4 (en)	2014-10-15

Family

ID=38345477

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06734571.0A Withdrawn EP1984526A4 (en)	2006-02-09	2006-02-09	Conditioned quicklime for injection to a molten bath of a steel-making vessel

Country Status (4)

Country	Link
US (1)	US20090013827A1 (en)
EP (1)	EP1984526A4 (en)
CA (1)	CA2640471A1 (en)
WO (1)	WO2007092006A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR20140024401A (en)	2011-04-29	2014-02-28	베리 메탈 컴패니	Gas and particulate delivery system and method for metallurgical vessel
ES2700982T3 (en)	2012-11-15	2019-02-20	Kalkfabrik Netstal Ag	Surface modified calcium oxide and process for its production
US9365907B1 (en) *	2013-03-14	2016-06-14	ALMAMET USA, Inc.	Conversion of troublesome lime fines to useful high quality fluidized lime in feeding flux lime to a BOF converter
IT202100026225A1 (en) *	2021-10-13	2023-04-13	Unicalce S P A	GRANULAR MATERIAL BASED ON QUICK LIME, ITS PREPARATION PROCESS AND ITS USES.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1771274A1 (en) *	1968-04-27	1972-02-17	Rwk Rhein Westfael Kalkwerke	Process for the production of hydration-resistant aggregates, preferably suitable for metallurgical reactions
US4208388A (en) *	1978-09-28	1980-06-17	Dow Corning Corporation	Flow aid
US4263043A (en) *	1979-02-15	1981-04-21	Kawasaki Steel Corporation	Desulfurizing agent for injection
US4528031A (en) *	1984-06-15	1985-07-09	Cyanamid Canada, Inc.	Flow promotor for particulate material
US5021086A (en) *	1990-07-05	1991-06-04	Reactive Metals And Alloys Corporation	Iron desulfurization additive and method for introduction into hot metal
ZA927542B (en) *	1991-10-17	1993-04-26	Iscor Ltd	Desulphurization of liquid iron.
US5284504A (en) *	1991-10-25	1994-02-08	The Carbide/Graphite Group, Inc.	Powdered desulfurizing reagent and process of use
WO2001088208A2 (en) *	2000-05-12	2001-11-22	Wacson, Inc.	Carrier material and desulfurization agent for desulfurizing iron

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1979000398A1 (en) *	1977-12-16	1979-07-12	Foseco Int	Desulphurisation of ferrous metals
US4217134A (en) *	1979-06-13	1980-08-12	Molten Steel Products, Inc.	Compositions and methods for desulphurizing molten ferrous metals
JPS58185707A (en) *	1982-04-23	1983-10-29	Sumitomo Metal Ind Ltd	Refining method of steel
US4490173A (en) *	1982-09-30	1984-12-25	Schwer John W	Steelmaking additive composition
JPS62228412A (en) *	1986-03-31	1987-10-07	Kawasaki Steel Corp	Method for adding auxiliary material to metallurgical furnace
US4909844A (en) *	1986-06-10	1990-03-20	Jeffery Thompson	Flux material for steelmaking
DE4211164C2 (en) *	1992-03-31	1995-02-16	Mannesmann Ag	Method and device for treating pourable or flowable material
ES2091429T3 (en) *	1991-04-02	1996-11-01	Pechiney Electrometallurgie	DESULFURING AGENT FOR FOUNDRY CONSTITUTED BY CALCIUM CARBIDE AND ORGANIC BINDER.
US6989040B2 (en) *	2002-10-30	2006-01-24	Gerald Zebrowski	Reclaimed magnesium desulfurization agent

2006
- 2006-02-09 EP EP06734571.0A patent/EP1984526A4/en not_active Withdrawn
- 2006-02-09 WO PCT/US2006/004410 patent/WO2007092006A1/en not_active Ceased
- 2006-02-09 US US10/583,007 patent/US20090013827A1/en not_active Abandoned
- 2006-02-09 CA CA002640471A patent/CA2640471A1/en not_active Abandoned

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1771274A1 (en) *	1968-04-27	1972-02-17	Rwk Rhein Westfael Kalkwerke	Process for the production of hydration-resistant aggregates, preferably suitable for metallurgical reactions
US4208388A (en) *	1978-09-28	1980-06-17	Dow Corning Corporation	Flow aid
US4263043A (en) *	1979-02-15	1981-04-21	Kawasaki Steel Corporation	Desulfurizing agent for injection
US4528031A (en) *	1984-06-15	1985-07-09	Cyanamid Canada, Inc.	Flow promotor for particulate material
US5021086A (en) *	1990-07-05	1991-06-04	Reactive Metals And Alloys Corporation	Iron desulfurization additive and method for introduction into hot metal
ZA927542B (en) *	1991-10-17	1993-04-26	Iscor Ltd	Desulphurization of liquid iron.
US5284504A (en) *	1991-10-25	1994-02-08	The Carbide/Graphite Group, Inc.	Powdered desulfurizing reagent and process of use
WO2001088208A2 (en) *	2000-05-12	2001-11-22	Wacson, Inc.	Carrier material and desulfurization agent for desulfurizing iron

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199339, Derwent World Patents Index; AN 1993-312001, XP002728912 *
See also references of WO2007092006A1 *

Also Published As

Publication number	Publication date
EP1984526A1 (en)	2008-10-29
CA2640471A1 (en)	2007-08-16
WO2007092006A1 (en)	2007-08-16
US20090013827A1 (en)	2009-01-15

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EP1984526A4 (en)	2014-10-15	Conditioned quicklime for injection to a molten bath of a steel-making vessel
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GB0804676D0 (en)	2008-04-16	A molten metal transfer vessel
GB0615035D0 (en)	2006-09-06	Process for the production of lime

Legal Events

Date	Code	Title	Description
2008-09-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2008-10-29	17P	Request for examination filed	Effective date: 20080807
2008-10-29	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
2008-10-29	AX	Request for extension of the european patent	Extension state: BA HR YU
2008-12-17	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: CARMEUSE NORTH AMERICA
2012-07-25	RAX	Requested extension states of the european patent have changed	Extension state: HR Payment date: 20080807 Extension state: BA Payment date: 20080807 Extension state: YU Payment date: 20080807
2014-10-01	RIC1	Information provided on ipc code assigned before grant	Ipc: C21C 7/00 20060101AFI20140828BHEP Ipc: C21C 7/076 20060101ALI20140828BHEP
2014-10-15	A4	Supplementary search report drawn up and despatched	Effective date: 20140911
2014-10-15	RIC1	Information provided on ipc code assigned before grant	Ipc: C21C 7/00 20060101AFI20140905BHEP Ipc: C21C 7/076 20060101ALI20140905BHEP
2015-09-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2015-10-14	18D	Application deemed to be withdrawn	Effective date: 20150411