Method for producing agglomerated material

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal

Reexamination Certificate

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Details

C075S771000, C075S772000, C423S138000

Reexamination Certificate

active

07955412

ABSTRACT:
A method is provided for producing an agglomerated material that is used for producing metallic iron by heat reduction in a moving hearth-type reducing furnace, wherein the agglomerated material can have a high mechanical strength without increases in the binder content and the moisture content of the material mixture. The method for producing an agglomerated material used for producing metallic iron, wherein the agglomerated material is produced by agglomerating a material mixture containing an iron-oxide-containing material, a carbonaceous reducing agent, a binder, and moisture; drying the material mixture; and charging and heating the material mixture in a moving hearth-type reducing furnace to reduce the iron oxide contained in the material mixture with the carbonaceous reducing agent, wherein a carbohydrate is used as the binder and the material mixture is left to stand prior to the agglomeration.

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Taiwanese Search Report issued Sep. 30, 2010, in Patent Application No. 096104557, filed Feb. 8, 2007 (with partial English-language translation).
Office Action issued Aug. 12, 2010, in Chinese Patent Application No. 200680053986.2.

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