Title:
METHOD FOR PRODUCING IRON ORE PELLETS, AND IRON ORE PELLETS
Document Type and Number:
WIPO Patent Application WO/2024/069991
Kind Code:
A1
Abstract:
The method for producing iron ore pellets according to one embodiment of the present invention is a method for producing self-fluxing iron ore pellets for use in blast furnace operations, the method comprising a feed-material mixing step in which minor feed materials including CaO and MgO are incorporated into raw ore so as to result in a CaO/SiO2 mass ratio of 0.8 or higher and an MgO/SiO2 mass ratio of 0.4 or higher, a pelletization step in which green pellets having a porosity of 15-22% are formed from the feed-material mixture obtained in the feed-material mixing step, and a burning step in which the green pellets are burned at a temperature of 1200-1300°C.
Inventors:
MORIOKA KOICHI
TAKIGUCHI YUTA
KATO TSUGUNORI
KAJIYAMA YUKI
TAKIGUCHI YUTA
KATO TSUGUNORI
KAJIYAMA YUKI
Application Number:
PCT/JP2022/038913
Publication Date:
April 04, 2024
Filing Date:
October 19, 2022
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C22B1/16; C21B5/00; C22B1/14
Foreign References:
| JPS63219534A | 1988-09-13 | |||
| JP2012126947A | 2012-07-05 |
Attorney, Agent or Firm:
IKEDA Yoshinori (JP)
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