Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2005-07-19
2005-07-19
Andrews, Melvyn (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C075S656000, C423S107000
Reexamination Certificate
active
06918947
ABSTRACT:
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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Fuji Kojiro
Harada Takao
Iwasaki Nobuyuki
Maki Takeshi
Matsui Yoshiyuki
(Kobe Steel, Ltd.)
Andrews Melvyn
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