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WO2008051356A3 - Microwave heating method and apparatus for iron oxide reduction - Google Patents

Microwave heating method and apparatus for iron oxide reduction Download PDF

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Publication number
WO2008051356A3
WO2008051356A3 PCT/US2007/021254 US2007021254W WO2008051356A3 WO 2008051356 A3 WO2008051356 A3 WO 2008051356A3 US 2007021254 W US2007021254 W US 2007021254W WO 2008051356 A3 WO2008051356 A3 WO 2008051356A3
Authority
WO
WIPO (PCT)
Prior art keywords
iron
microwave heating
reducing
iron oxide
furnace chamber
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/US2007/021254
Other languages
French (fr)
Other versions
WO2008051356A2 (en
Inventor
Jiann-Yang Hwang
Xiaodi Huang
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 EP07839202A priority Critical patent/EP2089549A4/en
Priority to CN2007800447013A priority patent/CN101548024B/en
Priority to BRPI0717798-4A2A priority patent/BRPI0717798A2/en
Priority to AU2007309609A priority patent/AU2007309609B2/en
Publication of WO2008051356A2 publication Critical patent/WO2008051356A2/en
Publication of WO2008051356A3 publication Critical patent/WO2008051356A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary 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
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/34—Arrangements of heating devices
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • 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
    • C21B2100/42—Sulphur removal
    • 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

A method and apparatus for reducing iron oxides using microwave heating in a furnace chamber which is sealed against the entrance of air reduces trie energy required and produces a low temperature reduction and allows the recovery of combustible synthetic gas as a byproduct of the process. Avoidance of the reduction of sulfur, phorphorus and silica is also insured, as is the need to reduce the silica content of the feed material prior to reducing the ore. A continuous rotary hearth furnace, a rotary kiln, a linear conveyor and vertical shaft furnace chamber configurations are described. A secondary heating zone can also be included to process the reduced iron into iron nuggets or liquid metallic iron.
PCT/US2007/021254 2006-10-03 2007-10-03 Microwave heating method and apparatus for iron oxide reduction Ceased WO2008051356A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07839202A EP2089549A4 (en) 2006-10-03 2007-10-03 Microwave heating method and apparatus for iron oxide reduction
CN2007800447013A CN101548024B (en) 2006-10-03 2007-10-03 Process for reducing iron oxide and generating synthesis gas
BRPI0717798-4A2A BRPI0717798A2 (en) 2006-10-03 2007-10-03 APPARATUS AND METHOD FOR REDUCING IRON OXIDE
AU2007309609A AU2007309609B2 (en) 2006-10-03 2007-10-03 Microwave heating method and apparatus for iron oxide reduction

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US84909806P 2006-10-03 2006-10-03
US60/849,098 2006-10-03
US86567206P 2006-11-14 2006-11-14
US60/865,672 2006-11-14

Publications (2)

Publication Number Publication Date
WO2008051356A2 WO2008051356A2 (en) 2008-05-02
WO2008051356A3 true WO2008051356A3 (en) 2009-03-05

Family

ID=39325095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/021254 Ceased WO2008051356A2 (en) 2006-10-03 2007-10-03 Microwave heating method and apparatus for iron oxide reduction

Country Status (5)

Country Link
EP (1) EP2089549A4 (en)
CN (1) CN101548024B (en)
AU (1) AU2007309609B2 (en)
BR (1) BRPI0717798A2 (en)
WO (1) WO2008051356A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8764875B2 (en) 2010-08-03 2014-07-01 Xiaodi Huang Method and apparatus for coproduction of pig iron and high quality syngas
US8545594B2 (en) 2011-08-01 2013-10-01 Superior Mineral Resources LLC Ore beneficiation
AU2012290345B2 (en) 2011-08-01 2017-03-16 Superior Mineral Resources LLC Ore beneficiation
JP5729277B2 (en) * 2011-11-30 2015-06-03 新日鐵住金株式会社 Solid reduction furnace
JP5729278B2 (en) * 2011-11-30 2015-06-03 新日鐵住金株式会社 Solid reduction furnace
CN102425934B (en) * 2011-12-20 2013-06-26 湖南省中晟热能科技有限公司 Microwave heating high-temperature vertical kiln
EP2628805A1 (en) * 2012-02-14 2013-08-21 Siemens VAI Metals Technologies GmbH Method and device for reducing the raw materials containing iron oxide in a high-pressure reduction unit
CN102837932B (en) * 2012-08-03 2015-04-15 莱芜钢铁集团有限公司 Continuous flat-pushing type discharge device and discharge method thereof
CN103205519B (en) * 2013-04-25 2014-12-03 石家庄市宏晟环保科技有限公司 Technology for extracting iron from steel-making and ironmaking fly ash by micro-wave heating
TWI588088B (en) * 2013-12-06 2017-06-21 財團法人工業技術研究院 Method for preparing synthesis gas and preparing system thereof
CN104561549B (en) * 2014-12-10 2017-01-04 昆明理工大学 A kind of distributing method of microwave shaft (tower) furnace calcining manganese ore
CN105671329B (en) * 2016-03-25 2018-07-13 江苏省冶金设计院有限公司 Handle the rotary hearth furnace and method of lead and zinc smelting dreg
CN106011458B (en) * 2016-06-24 2017-11-17 长沙有色冶金设计研究院有限公司 The method and its equipment of high arsenic multi-metal complex material dearsenification
CN108285261B (en) * 2018-03-20 2024-02-06 中国石油大学(北京) Microwave treatment equipment for oily sludge and its treatment method
CN108239688B (en) * 2018-03-30 2023-05-30 株洲聚润合微波工业炉有限公司 A microwave reduction vertical kiln and its reduction method
CN110016532A (en) * 2018-12-25 2019-07-16 武汉桂坤科技有限公司 A kind of carbon and the reduction of natural gas joint and molten point of integrated process for making
TWI765545B (en) * 2021-01-27 2022-05-21 永虹先進材料股份有限公司 Microwave mixing device
CN114525373B (en) * 2022-01-20 2023-12-08 华北理工大学 A microwave hydrogen reduction method for iron ore powder desulfurization and phosphorus
WO2024047553A1 (en) * 2022-09-01 2024-03-07 Harald Noack Device and method for the gaseous extraction of reducible constituents from a starting material, and extraction system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6277168B1 (en) * 2000-02-14 2001-08-21 Xiaodi Huang Method for direct metal making by microwave energy
US20040060387A1 (en) * 2000-12-04 2004-04-01 Jeffrey Tanner-Jones Plasma reduction processing of materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8915555D0 (en) * 1987-11-13 1989-08-31 Wollongong Uniadvice Microwave irradiation of mineral ores and concentrates
JP2003187316A (en) * 2001-12-13 2003-07-04 Hiroshi Arai Information distribution service from automatic vending machine to portable terminal
JP2003183716A (en) * 2001-12-13 2003-07-03 Nippon Steel Corp Method for producing reduced iron using a rotary bed furnace
GB2414729A (en) * 2004-06-01 2005-12-07 Atraverda Ltd Method of producing sub-oxides with a substantially moisture free gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6277168B1 (en) * 2000-02-14 2001-08-21 Xiaodi Huang Method for direct metal making by microwave energy
US20040060387A1 (en) * 2000-12-04 2004-04-01 Jeffrey Tanner-Jones Plasma reduction processing of materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2089549A4 *

Also Published As

Publication number Publication date
AU2007309609A1 (en) 2008-05-02
AU2007309609B2 (en) 2012-03-15
CN101548024A (en) 2009-09-30
WO2008051356A2 (en) 2008-05-02
BRPI0717798A2 (en) 2014-06-17
EP2089549A4 (en) 2011-03-02
CN101548024B (en) 2013-11-20
EP2089549A2 (en) 2009-08-19

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