MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617093809 A) filed by Jfe Steel Corporation on August 03, 2026, for Method Of Manufacturing Sintered Ore And Sintered Ore For Hydrogen Gas Injection Blast Furnace.
Inventors include Takehara Kenta; Nomoto Shuichi; Miyamoto Yukino; Ikeda Kohei; Saeki Michitoshi; Kawashiri Yuki; Higuchi Takahide; and Kawano Takashi.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: According to the present invention, provided is a method for manufacturing sintered ore enabling the manufacture of highly reducible sintered ore, independent of a trade-off relationship between reducibility and reduction disintegration, in a reducing gas atmosphere containing hydrogen gas. In particular, the invention is characterized in that the oxygen concentration of gas supplied by a gas supply device, the added amount of powdered coke and/or anthracite to be added to sinter feed, and the firing speed satisfy (1). (1): (10+0.3×CO2+0.2×CC)/FS1.00. In (1), CO2 is the oxygen concentration (vol%) of gas, CC is the added amount (mass%, added externally) of powdered coke and/or anthracite relative to 100 mass% of the sinter feed, and FS is the firing speed (mm/min).
Disclaimer: Curated by HT Syndication.
