[go: up one dir, main page]

WO2004007775A3 - Direct melting and refining of metal oxide material - Google Patents

Direct melting and refining of metal oxide material Download PDF

Info

Publication number
WO2004007775A3
WO2004007775A3 PCT/GB2003/003065 GB0303065W WO2004007775A3 WO 2004007775 A3 WO2004007775 A3 WO 2004007775A3 GB 0303065 W GB0303065 W GB 0303065W WO 2004007775 A3 WO2004007775 A3 WO 2004007775A3
Authority
WO
WIPO (PCT)
Prior art keywords
carrier material
metal oxide
molten carrier
zone
refining
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.)
Ceased
Application number
PCT/GB2003/003065
Other languages
French (fr)
Other versions
WO2004007775A2 (en
Inventor
Noel Alfred Warner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP03764006A priority Critical patent/EP1521851A2/en
Priority to AU2003254456A priority patent/AU2003254456A1/en
Priority to US10/521,306 priority patent/US20060162498A1/en
Publication of WO2004007775A2 publication Critical patent/WO2004007775A2/en
Publication of WO2004007775A3 publication Critical patent/WO2004007775A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • 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
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/02—Obtaining nickel or cobalt by dry processes
    • C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/06—Refining
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The present invention provides a method of reducing metal oxide material to metal comprising the steps of forcibly circulating molten carrier material in a closed loop path serially through a charge reduction zone on one arm of the loop, a combined melt desulphurisation zone and post combustion or heating zone on the other; reducing said metal oxide to solid metal by the carbonaceous material contained within a mixed composite charge of the metal oxide, carbonaceous reductant and flux in said reduction zone, the metal oxide and carbonaceous reductant being utilised in proportions such that the carbon from the carbonaceous reductant is converted to carbon monoxide; reacting carbon monoxide with oxygen in the refining loops downstream from the reduction loop before being combusted to completion in the heating zone at the surface of the molten carrier material so that heat generated by the reaction is transferred to the molten carrier material which is circulated to the reduction zone; separating a metallised raft from said molten carrier material by projecting said metallised raft along into the first refining loop by virtue of the drag force exerted on the metallised raft by the circulating carrier material before the molten carrier material is circulated to the heating zone so that the surface of the molten carrier material which is circulated to the heating zone is substantially free of solid material.
PCT/GB2003/003065 2002-07-15 2003-07-15 Direct melting and refining of metal oxide material Ceased WO2004007775A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03764006A EP1521851A2 (en) 2002-07-15 2003-07-15 Direct production of refined metals and alloys
AU2003254456A AU2003254456A1 (en) 2002-07-15 2003-07-15 Direct melting and refining of metal oxide material
US10/521,306 US20060162498A1 (en) 2002-07-15 2003-07-15 Direct production of refined metals and alloys

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0216484.6 2002-07-15
GBGB0216484.6A GB0216484D0 (en) 2002-07-15 2002-07-15 Direct production of refined metals and alloys

Publications (2)

Publication Number Publication Date
WO2004007775A2 WO2004007775A2 (en) 2004-01-22
WO2004007775A3 true WO2004007775A3 (en) 2004-04-29

Family

ID=9940543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003065 Ceased WO2004007775A2 (en) 2002-07-15 2003-07-15 Direct melting and refining of metal oxide material

Country Status (5)

Country Link
US (1) US20060162498A1 (en)
EP (1) EP1521851A2 (en)
AU (1) AU2003254456A1 (en)
GB (1) GB0216484D0 (en)
WO (1) WO2004007775A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0412105D0 (en) * 2004-05-29 2004-06-30 Warner Noel A Recovery of steel from contaminated scrap
CN101031631B (en) * 2004-10-04 2013-02-13 Jnc株式会社 Liquid crystal composition and liquid crystal display element
GB0615952D0 (en) * 2006-08-11 2006-09-20 Warner Noel A Radiative post combustion
US10099868B1 (en) * 2017-04-20 2018-10-16 Otto Kierulff Da Costa Set of water pipes with capsules for heavy cargo and irrigation transportation system
CN113528821B (en) * 2019-07-29 2023-05-02 孙旭阳 Method for preparing simple substance material by reducing single-atom carbon
CN112850645B (en) * 2021-02-08 2022-09-06 赛鼎工程有限公司 System and method for preparing synthetic ammonia by deeply purifying coke oven gas
CN114574651B (en) * 2022-01-24 2023-05-05 山东大学 Cyclone iron wall melting smelting device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046675A (en) * 1964-10-16 1966-10-26 Air Liquide Improvements in or relating to the production of steel
EP0266975A1 (en) * 1986-11-06 1988-05-11 The University Of Birmingham Smelting reduction
US5060913A (en) * 1989-08-30 1991-10-29 Regents Of The University Of Minnesota Integrated metallurgical reactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741770A (en) * 1985-04-03 1988-05-03 Cra Services Limited Zinc smelting process using oxidation zone and reduction zone
GB9211052D0 (en) * 1992-05-23 1992-07-08 Univ Birmingham Synthetic rutile production
GB9305560D0 (en) * 1993-03-18 1993-05-05 Univ Birmingham Method of recovering zine
LU90273B1 (en) * 1998-08-11 2000-02-14 Wurth Paul Sa Process for the thermal treatment of residues containing heavy metals and iron oxide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046675A (en) * 1964-10-16 1966-10-26 Air Liquide Improvements in or relating to the production of steel
EP0266975A1 (en) * 1986-11-06 1988-05-11 The University Of Birmingham Smelting reduction
US5060913A (en) * 1989-08-30 1991-10-29 Regents Of The University Of Minnesota Integrated metallurgical reactor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WARNER N A: "GENETIC MELT-CIRCULATION TECHNOLOGY", TRANSACTIONS - INSTITUTION OF MINING AND METALLURGY. SECTION C. MINERAL PROCESSING AND EXTRACTIVE METALLURGY, LONDON, GB, vol. 103, January 1994 (1994-01-01), pages C80 - C82, XP008024328, ISSN: 0371-9553 *
WARNER N A: "NEW REACTOR CONCEPTS FOR DIRECT COAL-BASED CONTINUOUS STEELMAKING", YAZAWA INTERNATIONAL SYMPOSIUM: METALLURGICAL AND MATERIALS PROCESSING: PRINCIPLES AND TECHNOLOGIES. MATERIALS PROCESSING FUNDAMENTALS AND NEW TECHNOLOGIES, XX, XX, 2 March 2003 (2003-03-02), pages 881 - 890, XP008024324 *

Also Published As

Publication number Publication date
GB0216484D0 (en) 2002-08-21
WO2004007775A2 (en) 2004-01-22
AU2003254456A8 (en) 2004-02-02
EP1521851A2 (en) 2005-04-13
AU2003254456A1 (en) 2004-02-02
US20060162498A1 (en) 2006-07-27

Similar Documents

Publication Publication Date Title
KR100194133B1 (en) Method for producing ferroalloy using a molten bath reactor
CA2304618C (en) Direct smelting process for producing metals from metal oxides
EP1137815B1 (en) A process and an apparatus for producing metals and metal alloys
MX2010001489A (en) Direct processing of ferrotitania ores and sands.
WO2004007775A3 (en) Direct melting and refining of metal oxide material
FI97396B (en) Process for the production of fine nickel stone from nickel-containing raw materials, which has at least partially refined pyrometallurgically
CA2513814C (en) An improved smelting process for the production of iron
RU2194781C2 (en) Method of processing raw materials containing nonferrous metals and iron
KR102606028B1 (en) Methods for smelting metallic feedstock materials
RU2324751C2 (en) Processing method of raw materials containing non-ferrous metals and iron
AU732984B2 (en) Recycling process for brass foundry waste
AU644048B2 (en) Process of reducing metal oxides in slags
JPS6320409A (en) Ladle refining method
JP3645621B2 (en) Hot metal pretreatment method
AU773259B2 (en) A process and an apparatus for producing metals and metal alloys
RU2176276C2 (en) Method of depleting slags containing heavy nonferrous and noble metals
AU725946B2 (en) A method and an apparatus for producing metals and metal alloys
Stanek et al. AFS Cupola Model) Model Development
JPS62167808A (en) Production of molten chromium iron
RU2315816C1 (en) Method for processing of return converter slag of nickel-cobalt production in mixed smelting of the same with agglomerate in shaft furnace
Janelidze et al. Increase of the Efficiency of Direct Doping of Steel by Modeling of the Process of Carbothermal Reduction of Oxide Systems Cr
SU1624041A1 (en) Method of processing ferriferrous materials
AU2918192A (en) High-production rotary furnace steelmaking
Shimoo et al. Kinetics of Smelting Reduction of Synthetic Chromite(Fe sub 0. 5 Mg sub 0. 5)(Cr sub 0. 8 Al sub 0. 2) sub 2 O sub 4
JPS6365009A (en) Melting reduction method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2006162498

Country of ref document: US

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 10521306

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2003764006

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003764006

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2003764006

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP

WWP Wipo information: published in national office

Ref document number: 10521306

Country of ref document: US