METHOD FOR PRODUCING SPONGE IRON, AND REDUCED IRON POWDER AND METHOD FOR PRODUCTION THEREOF

Title:

METHOD FOR PRODUCING SPONGE IRON, AND REDUCED IRON POWDER AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2002/064844

Kind Code:

A1

Abstract:

A method for producing sponge iron wherein iron oxide is reduced through heating together with a solid reducing agent to form sponge iron, characterized in that a mixed powder of a hematite powder and an iron ore powder or a mixed powder of a hematite powder and a mill scale powder is used as the iron oxide, and the hematite powder has a specific surface area of 2.0 m?2¿/g or more and is used in an amount of 5 to 45 mass % based on the total amount of the iron oxide.

More Like This:

JPS63223112	SMELTING AND REDUCTION METHOD FOR IRON ORE
JP4741084	How to optimize the composition and operation of the reduction process for iron-containing charged materials

Inventors:

UENOSONO SATOSHI (JP)
SONOBE AKIO (JP)
SUGIHARA HIROSHI (JP)

Application Number:

PCT/JP2002/001175

Publication Date:

August 22, 2002

Filing Date:

February 13, 2002

Export Citation:

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Assignee:

KAWASAKI STEEL CO (JP)
UENOSONO SATOSHI (JP)
SONOBE AKIO (JP)
SUGIHARA HIROSHI (JP)

International Classes:

C21B13/00; C22C33/02; (IPC1-7): C21B13/00; B22F1/00; B22F8/00; B22F9/00

Foreign References:

JPH1112619A	1999-01-19
JPH10251723A	1998-09-22
JPH10237519A	1998-09-08
JPS4938867A	1974-04-11

Attorney, Agent or Firm:

Kobayashi, Eiichi (Honcho 6-chome Funabashi-shi, Chiba, JP)

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