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:
Sep. 06, 2011
Filed:
Sep. 18, 2008
Hideaki Fujimoto, Kobe, JP;
Tsuyoshi Mimura, Kakogawa, JP;
Takao Harada, Kobe, JP;
Masataka Tateishi, Kobe, JP;
Kiminori Hajika, Kobe, JP;
Hiroshi Sugitatsu, Kobe, JP;
Hideaki Fujimoto, Kobe, JP;
Tsuyoshi Mimura, Kakogawa, JP;
Takao Harada, Kobe, JP;
Masataka Tateishi, Kobe, JP;
Kiminori Hajika, Kobe, JP;
Hiroshi Sugitatsu, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A process for producing molten iron is a process in which while an inert gas is blown into a molten iron layer in an iron bath type melting furnace through bottom-blown tuyeres provided in a hearth bottom thereof to stir the molten iron layer, a carbon material, an additive flux, and solid reduced iron obtained by heating reduction of carbon composite iron oxide briquettes are charged into the above melting furnace, and top blowing of an oxygen-containing gas is performed through a top-blown lance provided for the melting furnace, so that the solid reduced iron is melted by combustion heat obtained by combusting the carbon material and/or carbon in molten iron to form molten iron.