METHOD FOR MANUFACTURING REDUCED IRON

Title:

METHOD FOR MANUFACTURING REDUCED IRON

Document Type and Number:

WIPO Patent Application WO/2014/080831

Kind Code:

A1

Abstract:

Provided is a method for manufacturing reduced iron in which, when manufacturing reduced iron by heating an agglomerate containing an iron-oxide-containing substance and a carbonaceous reducing agent, generation of foaming during heating is minimized even when a carbonaceous reducing agent containing no less than 25% of volatile content is used, and the reduced iron and by-product slag can be separated in a satisfactory manner. A method for manufacturing reduced iron by heating an agglomerate containing an iron-oxide-containing substance and a carbonaceous reducing agent and reducing the iron oxide in the agglomerate, wherein the carbonaceous reducing agent used contains no less than 25% (by mass; same hereafter) of volatile content, and the ratio [O(p)/T.C(p)] of the amount of oxygen [O(p)] contained as FeOx in the iron-oxide-containing substance in the agglomerate relative to the amount of carbon [T.C(p)] contained in the carbonaceous reducing agent in the agglomerate is 1.30 or less (not including zero).

Inventors:

HOSONO YUI
SHIMAMOTO MASAKI
TATEISHI MASATAKA
YOSHIDA SHINGO

Application Number:

PCT/JP2013/080807

Publication Date:

May 30, 2014

Filing Date:

November 14, 2013

Export Citation:

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Assignee:

KOBE STEEL LTD (JP)

International Classes:

C21B13/12; C22B1/24

Foreign References:

JP2010261101A	2010-11-18
JP2012017526A	2012-01-26