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WO2009001663A1 - 粒状金属鉄の製造方法 - Google Patents

粒状金属鉄の製造方法 Download PDF

Info

Publication number
WO2009001663A1
WO2009001663A1 PCT/JP2008/060530 JP2008060530W WO2009001663A1 WO 2009001663 A1 WO2009001663 A1 WO 2009001663A1 JP 2008060530 W JP2008060530 W JP 2008060530W WO 2009001663 A1 WO2009001663 A1 WO 2009001663A1
Authority
WO
WIPO (PCT)
Prior art keywords
metallic iron
production
raw material
granular
material mixture
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/JP2008/060530
Other languages
English (en)
French (fr)
Inventor
Takahiro Kudou
Kazutaka Kunii
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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
Priority claimed from JP2007169628A external-priority patent/JP5096811B2/ja
Priority claimed from JP2007169627A external-priority patent/JP5096810B2/ja
Priority claimed from JP2007169629A external-priority patent/JP5210555B2/ja
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to AU2008268694A priority Critical patent/AU2008268694B2/en
Priority to US12/666,729 priority patent/US20100171072A1/en
Publication of WO2009001663A1 publication Critical patent/WO2009001663A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C04B18/142—Steelmaking slags, converter slags
    • 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
    • C21B13/008—Use of special additives or fluxing agents
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

　原料混合物を加熱還元炉に装入し、原料混合物を加熱還元することで、金属鉄を生成してスラグを副生し、金属鉄をスラグと分離しつつ粒状に凝集させ、金属鉄を冷却凝固させる粒状金属鉄を製造する方法である。前記原料混合物は、スラグがＣａＯ、ＭｇＯ、ＳｉＯ２およびアルカリ酸化物を含有し、アルカリ酸化物がＬｉ2Ｏ、Ｎａ2ＯおよびＫ2Ｏから選ばれる少なくとも１種であり、アルカリ酸化物が、Ｌｉ2Ｏ含有率≧０．０３％、Ｎａ2Ｏ含有率≧０．１０％、Ｋ2Ｏ含有率≧０．１０％の少なくとも１つを満足し、スラグの塩基度が１．３以上かつ２．３以下を満足するように、成分元素として少なくともＦｅ、Ｃａ、Ｍｇ、Ｓｉおよびアルカリ金属を含有している。この方法により高品質の粒状金属鉄を生産性よく製造することができる。
PCT/JP2008/060530 2007-06-27 2008-06-09 粒状金属鉄の製造方法 Ceased WO2009001663A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2008268694A AU2008268694B2 (en) 2007-06-27 2008-06-09 Method for manufacturing granular metallic iron
US12/666,729 US20100171072A1 (en) 2007-06-27 2008-06-09 Method for manufacturing granular metallic iron

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2007-169629 2007-06-27
JP2007169628A JP5096811B2 (ja) 2007-06-27 2007-06-27 粒状金属鉄の製造方法
JP2007-169628 2007-06-27
JP2007169627A JP5096810B2 (ja) 2007-06-27 2007-06-27 粒状金属鉄の製造方法
JP2007-169627 2007-06-27
JP2007169629A JP5210555B2 (ja) 2007-06-27 2007-06-27 粒状金属鉄の製造方法

Publications (1)

Publication Number Publication Date
WO2009001663A1 true WO2009001663A1 (ja) 2008-12-31

Family

ID=40185484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/060530 Ceased WO2009001663A1 (ja) 2007-06-27 2008-06-09 粒状金属鉄の製造方法

Country Status (3)

Country Link
US (1) US20100171072A1 (ja)
AU (1) AU2008268694B2 (ja)
WO (1) WO2009001663A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014119647A1 (ja) * 2013-02-01 2014-08-07 株式会社神戸製鋼所 還元鉄の製造方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5420935B2 (ja) * 2008-04-09 2014-02-19 株式会社神戸製鋼所 粒状金属鉄の製造方法
JP2014167150A (ja) * 2013-02-28 2014-09-11 Kobe Steel Ltd 還元鉄塊成物の製造方法
JP6294152B2 (ja) * 2014-05-15 2018-03-14 株式会社神戸製鋼所 粒状金属鉄の製造方法
JP6460531B2 (ja) 2015-05-28 2019-01-30 株式会社神戸製鋼所 還元鉄の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03223414A (ja) * 1990-06-25 1991-10-02 Mitsui Eng & Shipbuild Co Ltd 硫黄、酸素及び窒素の各含有量が極めて低い鉄―、ニッケル―、及びコバルト―基合金の製造方法
JP2003073722A (ja) * 2001-06-18 2003-03-12 Kobe Steel Ltd 粒状金属の製法
JP2004285399A (ja) * 2003-03-20 2004-10-14 Kobe Steel Ltd 粒状金属鉄の製法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174961A (en) * 1977-11-01 1979-11-20 Eerste Nederlandse Cement Industrie (Enci) N.V. Method for working-up waste slag from the oxygen steel production
US6179895B1 (en) * 1996-12-11 2001-01-30 Performix Technologies, Ltd. Basic tundish flux composition for steelmaking processes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03223414A (ja) * 1990-06-25 1991-10-02 Mitsui Eng & Shipbuild Co Ltd 硫黄、酸素及び窒素の各含有量が極めて低い鉄―、ニッケル―、及びコバルト―基合金の製造方法
JP2003073722A (ja) * 2001-06-18 2003-03-12 Kobe Steel Ltd 粒状金属の製法
JP2004285399A (ja) * 2003-03-20 2004-10-14 Kobe Steel Ltd 粒状金属鉄の製法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014119647A1 (ja) * 2013-02-01 2014-08-07 株式会社神戸製鋼所 還元鉄の製造方法
US10017836B2 (en) 2013-02-01 2018-07-10 Kobe Steel, Ltd. Method for producing reduced iron

Also Published As

Publication number Publication date
AU2008268694B2 (en) 2011-06-23
AU2008268694A1 (en) 2008-12-31
US20100171072A1 (en) 2010-07-08

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