C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/10, 53/11
C22B 1/20 (2006.01) C22B 1/24 (2006.01)
Patent
CA 1324493
Abstract of Disclosure A method for manufacturing agglomerates of fired pellets comprising the steps of: the first pelletization step of adding and mixing fluxes to fine iron ores containing 30 to 95 wt.% of those of 0.125mm or less in particle size to form a mixture and to pelletize the mixture into green pellets; the second pelletization step of adding powder cokes containing 80 to 100 wt.% of those of 1 mm or less in paricle size to the green pellets, in amount of 2.5 to 4.0 wt.% to the fine iron ores, to prepare, through pelletization, green pellets coated with the powder cokes; and the sintering step of charging the green pellets coated with the powder cokes into a grate type sintering machine to manufacture the agglomerates of fired pellets. And furthermore, in another method for manufacturing agglomerated of fired pellets, fine iron ores containing 10 to 80 wt.% of those of 0.044mm or less in particle size and powder cokes containing 20 to 70 wt.% of those of 1mm or less in particle size are used.
554134
Noda Hidetoshi
Sakamoto Noboru
Yanaka Hideomi
Nippon Kokan Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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