PROCESS OF PRODUCING METALLIC IRON

Title:

PROCESS OF PRODUCING METALLIC IRON

Document Type and Number:

Japanese Patent JP2014043645

Kind Code:

A

Abstract:

To provide a process of producing metallic iron by heating agglomerates including an iron oxide-containing material and a carbonaceous reductant in a moving-hearth heating furnace, in which metallic iron can be efficiently recovered from the resulting reduction product including metallic iron and slag, obtained by heating the agglomerates.

A process of producing metallic iron includes the steps of: agglomerating a mixture including an iron oxide-containing material and a carbonaceous reductant; introducing the resulting agglomerates into a moving-hearth heating furnace, and reducing the agglomerates by heating; crushing the resulting reduction product including metallic iron and slag, discharged from the moving-hearth heating furnace, using a crusher that exerts impact; and recovering metallic iron through selection with a separator.

Inventors:

HARADA TAKAO
SUGIYAMA TAKESHI
SHIINO JUNICHI

Application Number:

JP2013161832A

Publication Date:

March 13, 2014

Filing Date:

August 02, 2013

Export Citation:

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Assignee:

KOBE STEEL LTD

International Classes:

C21B13/10; B02C23/08; C21B11/08; C21B13/00; C22B1/24

Domestic Patent References:

JP2009507134A	2009-02-19
JP2008523247A	2008-07-03
JP2012144788A	2012-08-02
JP2006322075A	2006-11-30

Foreign References:

US6048382A	2000-04-11
WO2012002338A1	2012-01-05
US4416688A	1983-11-22

Attorney, Agent or Firm:

Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito

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