Method of producing iron oxide pellets

Chemistry: physical processes – Physical processes – Agglomerating

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C023S3130FB

Reexamination Certificate

active

07438730

ABSTRACT:
A method for producing an iron oxide pellet including the steps of adding water to a raw material mixture comprising iron oxide which serves as a primary component, a carbonaceous material in an amount sufficient for reducing the iron oxide, an organic binder in an amount sufficient for binding the iron oxide and the carbonaceous material, and an inorganic coagulant in an amount of not less than 0.05 mass % and less than 1 mass %; pelletizing the resultant mixture to thereby obtain a green pellet; and drying the green pellet until the moisture content is reduced to equal to or less than 1.0 mass %. The thus-produced iron oxide pellet is charged in a reducing furnace for reduction to thereby obtain a reduced iron pellet.

REFERENCES:
patent: 3443931 (1969-05-01), Beggs et al.
patent: 3836354 (1974-09-01), Wienert
patent: 3844811 (1974-10-01), Brynko
patent: 3942974 (1976-03-01), Moreau et al.
patent: 4025596 (1977-05-01), Parks et al.
patent: 4161501 (1979-07-01), Skretting
patent: 4219519 (1980-08-01), Goksel
patent: 4385928 (1983-05-01), Clevely
patent: 5000783 (1991-03-01), Dingeman et al.
patent: 5112391 (1992-05-01), Owen et al.
patent: 5186741 (1993-02-01), Kotraba et al.
patent: 5302186 (1994-04-01), Field et al.
patent: 5972066 (1999-10-01), Lehtinen
patent: 5989019 (1999-11-01), Nishimura et al.
patent: 6063156 (2000-05-01), Negami et al.
patent: 6129777 (2000-10-01), Fuji et al.
patent: 6149709 (2000-11-01), Uragami et al.
patent: 6152983 (2000-11-01), Kamijo et al.
patent: 6241803 (2001-06-01), Fuji
patent: 6251161 (2001-06-01), Tateishi et al.
patent: 6254665 (2001-07-01), Matsushita et al.
patent: 6258149 (2001-07-01), Sugiyama et al.
patent: 6296479 (2001-10-01), Nishimura et al.
patent: 6319302 (2001-11-01), Harada
patent: 6334883 (2002-01-01), Takenaka et al.
patent: 6368379 (2002-04-01), Tateishi et al.
patent: 6579505 (2003-06-01), Tsuchiya et al.
patent: 2002/0175441 (2002-11-01), Tsuchiya et al.
patent: 2003/0198779 (2003-10-01), Tsuchiya et al.
patent: 26 07 650 (1977-09-01), None
patent: 0 413 592 (1991-02-01), None
patent: 1 364 150 (1974-08-01), None
patent: 36-17603 (1961-09-01), None
patent: 45-19569 (1970-07-01), None
patent: 49-15522 (1974-04-01), None
patent: 60-220135 (1985-11-01), None
patent: WO 94/03648 (1994-02-01), None
Derwent Abstracts, AN 92-157793, JP 2-090841, Jun. 7, 1991.
Derwent Abstracts, AN 95-335296, JP 2-090842, Mar. 20, 1995.
Derwent Abstracts, AN 75-50151, JP 50-041711, Apr. 16, 1975.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of producing iron oxide pellets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing iron oxide pellets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing iron oxide pellets will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4014557

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.