MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617060119 A) filed by Jfe Steel Corporation on May 12, 2026, for Method For Producing Manganese Carbide And Method For Producing Manganese-Containing Steel.
Inventors include Yoshida Hironori; and Nakai Yoshie.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: Provided is a method for producing a manganese carbide with which it is possible to reduce the discharge amount of CO2. The present invention is a method in which manganese ore is heated to a treatment temperature corresponding to an unmelted state and brought into contact with a mixed gas of a hydrogen gas and a hydrocarbon gas under atmospheric pressure to perform a reduction treatment on the manganese ore. It is preferable that the partial pressure of the hydrocarbon gas in the mixed gas is 10.0 kPa or higher, the number of hydrogen atoms in the mixed gas is at least 12 times the number of carbon atoms, and the treatment temperature is within the range from equal to or higher than 800°C to less than the melting temperature Tm. It is preferable to adjust the grain diameter of the manganese ore to 3-100 mm, to treat the manganese ore in a rotary kiln, and to supply the hydrocarbon gas from a position where the temperature inside the rotary kiln is 700°C or higher. The present invention is also a method for producing manganese-containing steel, the method including a step for adding the obtained manganese carbide to molten steel.
Disclaimer: Curated by HT Syndication.
