The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2005
Filed:
Mar. 25, 2003
Takeshi Maki, Kakogawa, JP;
Yoshiyuki Matsui, Kakogawa, JP;
Takeshi Sugiyama, Kobe, JP;
Takao Harada, Kobe, JP;
Masahiko Tetsumoto, Kobe, JP;
Hiroshi Tamazawa, Kobe, JP;
Tadashi Ueda, Kakogawa, JP;
Koichi Morioka, Kakogawa, JP;
Nobuyuki Iwasaki, Kakogawa, JP;
Hidetoshi Tanaka, Kobe, JP;
Kojiro Fuji, Kobe, JP;
Hiroshi Sugitatsu, Kobe, JP;
Takeshi Maki, Kakogawa, JP;
Yoshiyuki Matsui, Kakogawa, JP;
Takeshi Sugiyama, Kobe, JP;
Takao Harada, Kobe, JP;
Masahiko Tetsumoto, Kobe, JP;
Hiroshi Tamazawa, Kobe, JP;
Tadashi Ueda, Kakogawa, JP;
Koichi Morioka, Kakogawa, JP;
Nobuyuki Iwasaki, Kakogawa, JP;
Hidetoshi Tanaka, Kobe, JP;
Kojiro Fuji, Kobe, JP;
Hiroshi Sugitatsu, Kobe, JP;
Kobe Steel, Ltd., Kobe, JP;
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.