Method for making reduced iron

C - Chemistry – Metallurgy – 21 – B

Patent

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Details

C21B 5/02 (2006.01) C21B 13/10 (2006.01) C21C 1/04 (2006.01) C22B 1/245 (2006.01) C22B 5/10 (2006.01)

Patent

CA 2423166

A method for making reduced iron using blast-furnace sludge is provided. The method includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing powder to prepare a mixed material, an agglomerating step of agglomerating the mixed material to form agglomerates, a feeding step of feeding the agglomerates onto a continuously moving hearth, and a reducing step of heating the agglomerates to remove zinc and reduce the agglomerates.

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