MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617072507 A) filed by Nippon Steel Corporation on June 11, 2026, for Reduced Iron Production Method.

Inventor includes Mizutani Moritoshi.

The application for the patent was published on July 10, 2026, under issue no. 28/2026.

Abstract: According to one aspect of the present disclosure, this reduced iron production method is for producing reduced iron using a shaft furnace, the method involving an iron oxide charging step for charging an iron oxide raw material into a shaft furnace, and a blowing step for heating a reducing gas mainly composed of hydrogen gas and subsequently blowing same into the shaft furnace, wherein the specific consumption R (Nm3/t-DRI) of hydrogen gas and the blowing temperature T (K) satisfy R = 0.0051T2 -15.108T +12188. Preferably, the specific consumption R (Nm3/t-DRI) of hydrogen gas and the blowing temperature T (K) satisfy R = 0.0068T2 - 19.792T +15771.

Disclaimer: Curated by HT Syndication.