DE3669533D1 - Direktes reduktionsverfahren in einem schachtofen. - Google Patents

Direktes reduktionsverfahren in einem schachtofen.

Info

Publication number
DE3669533D1
DE3669533D1 DE8686305084T DE3669533T DE3669533D1 DE 3669533 D1 DE3669533 D1 DE 3669533D1 DE 8686305084 T DE8686305084 T DE 8686305084T DE 3669533 T DE3669533 T DE 3669533T DE 3669533 D1 DE3669533 D1 DE 3669533D1
Authority
DE
Germany
Prior art keywords
shaft
reduction process
direct reduction
direct
reduction
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.)
Revoked
Application number
DE8686305084T
Other languages
English (en)
Inventor
Takehiko Ashie
Osamu Tsuchiya
Ryo Watanabe
Nobuyuki Imanishi
Mamoru Onoda
Masahiro Maekawa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15389706&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3669533(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of DE3669533D1 publication Critical patent/DE3669533D1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
DE8686305084T 1985-07-02 1986-07-01 Direktes reduktionsverfahren in einem schachtofen. Revoked DE3669533D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60145641A JPS627806A (ja) 1985-07-02 1985-07-02 竪型炉を用いる直接製鉄方法

Publications (1)

Publication Number Publication Date
DE3669533D1 true DE3669533D1 (de) 1990-04-19

Family

ID=15389706

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686305084T Revoked DE3669533D1 (de) 1985-07-02 1986-07-01 Direktes reduktionsverfahren in einem schachtofen.

Country Status (4)

Country Link
EP (1) EP0207779B1 (de)
JP (1) JPS627806A (de)
DE (1) DE3669533D1 (de)
MY (1) MY102683A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181954A (en) * 1991-01-14 1993-01-26 Hylsa S.A. De C.V. Method for coating iron-bearing particles to be processed in a direct reduction process
US5372628A (en) * 1993-09-10 1994-12-13 Akzo N.V. Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof
US5476532A (en) * 1993-09-10 1995-12-19 Akzo Nobel N.V. Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof
CN1038259C (zh) * 1994-07-20 1998-05-06 赵栓柱 一种防止生产海绵铁粘结的方法
KR100405516B1 (ko) * 1996-12-09 2004-04-14 주식회사 포스코 샤프트형 환원로에서의 장입물 정체층 해소방법
US6355088B1 (en) 1997-08-04 2002-03-12 Bechtel Corporation Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags
US6048382A (en) * 1997-08-04 2000-04-11 Bechtel Corporation Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags
AT407402B (de) * 1999-04-22 2001-03-26 Voest Alpine Ind Anlagen Verfahren zur herstellung von für einen direktreduktionsprozess einsetzbarem einsatzmaterial
BRPI0603592A (pt) * 2006-08-22 2008-04-08 Vale Do Rio Doce Co dispositivo aerador de lìquidos ou polpas
US20160153061A1 (en) 2013-07-29 2016-06-02 Nippon Steel & Sumitomo Metal Corporation Raw material for direct reduction, method of producing raw material for direct reduction, and method of producing reduced iron
US20160251735A1 (en) * 2013-11-05 2016-09-01 Saudi Basic Industries Corporation Methods and compositions for decreasing adherence of iron oxide pellets used in direct reduction processes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869850A (en) * 1954-03-17 1959-01-20 Union Carbide Corp Preparation of ore and method of heat treatment
DE1186089B (de) * 1963-01-11 1965-01-28 Metallgesellschaft Ag Verfahren zur Verhinderung des Abriebs von Pellets fuer die Eisenerzreduktion
DE2061346C3 (de) * 1970-12-12 1974-10-10 Huettenwerk Oberhausen Ag, 4200 Oberhausen Verfahren zur Vorbereitung von Eisenerzpellets zur Direktreduktion im Fest- und Wanderbett
JPS529863B2 (de) * 1973-07-17 1977-03-18

Also Published As

Publication number Publication date
JPH0582447B2 (de) 1993-11-19
MY102683A (en) 1992-11-30
EP0207779A2 (de) 1987-01-07
JPS627806A (ja) 1987-01-14
EP0207779B1 (de) 1990-03-14
EP0207779A3 (en) 1988-12-07

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation