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
EP1984526A4 EP06734571.0A EP06734571A EP1984526A4 EP 1984526 A4 EP1984526 A4 EP 1984526A4 EP 06734571 A EP06734571 A EP 06734571A EP 1984526 A4 EP1984526 A4 EP 1984526A4
Authority
EP
European Patent Office
Prior art keywords
quicklime
conditioned
injection
steel
molten bath
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.)
Withdrawn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.)
Filing date
Publication date
Application filed by CARMEUSE NORTH AMERICA filed Critical CARMEUSE NORTH AMERICA
Publication of EP1984526A1 publication Critical patent/EP1984526A1/en
Publication of EP1984526A4 publication Critical patent/EP1984526A4/en
Withdrawn legal-status Critical Current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
    • C21C7/076—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
EP2702179B1 (en) 2011-04-29 2019-07-31 Berry Metal Company Gas and particulate delivery system and method for metallurgical vessel
WO2014075197A1 (en) 2012-11-15 2014-05-22 Kalkfabrik Netstal Ag Surface-modified calcium oxide
US9322073B1 (en) * 2013-03-14 2016-04-26 ALMAMET USA, Inc. Preparation of flux lime for a BOF converter including conversion of troublesome fines to high quality fluidized lime
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
DE69213541T2 (en) * 1991-04-02 1997-01-30 Pechiney Electrometallurgie Desulphurising agent for pig iron, made of calcium carbide and organic binder
US6989040B2 (en) * 2002-10-30 2006-01-24 Gerald Zebrowski Reclaimed magnesium desulfurization agent

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
US20090013827A1 (en) 2009-01-15
WO2007092006A1 (en) 2007-08-16

Similar Documents

Publication Publication Date Title
EP2024226A4 (en) Improvements relating to control of marine vessels
EP1997916A4 (en) Method of denitrifying molten steel
ZA200806791B (en) Method for the production of a foamed slag in a metal bath
IL195568A0 (en) A method to increase dissolved oxygen in a culture vessel
EP2004866A4 (en) Direct smelting plant
EP2434025A4 (en) Method of desulfurization of molten iron
IL241654A0 (en) A process for concentration of a polypeptide
ZA200808279B (en) Process for the acid digestion of metal-comprising compounds
ZA200808632B (en) Use of escitalopram for improving cognition
IL193716A0 (en) Apparatus for purification of water
PL2448700T3 (en) Casting pipe changing device at the spout of a metallurgical vessel
EP2050779A4 (en) Solution casting process
EP1984526A4 (en) Conditioned quicklime for injection to a molten bath of a steel-making vessel
EP2015986A4 (en) Guidance of marine vessels
EP2000235A4 (en) Ladle for molten metal delivery
EP1983869A4 (en) Inventions relating to drinking vessels
EP1983999A4 (en) Regimens for treatment of conditions related to estrogen deficiency
EG26547A (en) Ladle pipe for liquid metal casting plant
ZA201008736B (en) Processing of metallurgical slag
LU91408B1 (en) Cooling of a metallurgical smelting reduction vessel
SI2038260T1 (en) Stereoselective synthesis of (s)-1-methyl-3-phenylpiperazine
ZA201200993B (en) Process for the desulphurisation of olefin containing feedstocks by controlling the olefin content
GB2436287B (en) A splash reducing device for a sanitary ware vessel
ZA200702543B (en) Process for purification of lanthanide carboxylates
GB0613522D0 (en) Improvements relating to bath lifts

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20080807

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

AX Request for extension of the european patent

Extension state: BA HR YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CARMEUSE NORTH AMERICA

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

RIC1 Information provided on ipc code assigned before grant

Ipc: C21C 7/00 20060101AFI20140828BHEP

Ipc: C21C 7/076 20060101ALI20140828BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20140911

RIC1 Information provided on ipc code assigned before grant

Ipc: C21C 7/00 20060101AFI20140905BHEP

Ipc: C21C 7/076 20060101ALI20140905BHEP

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

18D Application deemed to be withdrawn

Effective date: 20150411