Invention Grant
- Patent Title: Self-fluxing pellets for blast furnace and method for manufacturing the same
- Patent Title (中): 高炉自熔颗粒及其制造方法
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Application No.: US12680855Application Date: 2008-12-15
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Publication No.: US08211204B2Publication Date: 2012-07-03
- Inventor: Eisaku Yasuda , Nobuhiro Hasegawa , Yoshiyuki Matsui , Shuji Kitayama
- Applicant: Eisaku Yasuda , Nobuhiro Hasegawa , Yoshiyuki Matsui , Shuji Kitayama
- Applicant Address: JP Kobe-shi
- Assignee: Kobe Steel, Ltd.
- Current Assignee: Kobe Steel, Ltd.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-329065 20071220
- International Application: PCT/JP2008/072774 WO 20081215
- International Announcement: WO2009/081784 WO 20090702
- Main IPC: C22B1/16
- IPC: C22B1/16
Abstract:
Provided are self-fluxing pellets for a blast furnace, characterized in that a CaO/SiO2 mass ratio C/S is 0.8 or more and a MgO/SiO2 mass ratio M/S is 0.4 or more; when an iron content (mass %) in the entire pellet is represented by % TFe, % TFe is 65% or less; and a temperature Ts (unit: ° C.) at which the pressure loss starts to increase sharply in a loaded high-temperature reduction test and which is calculated by the equation below is 1290° C. or higher: Ts=110×C/S+100×M/S+25×% TFe−480. Equation:
Public/Granted literature
- US20100206131A1 SELF-FLUXING PELLETS FOR BLAST FURNACE AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2010-08-19
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