MUMBAI, India, Sept. 5 -- Intellectual Property India has published a patent application (202421011894 A) filed by Jsw Steel Limited, Maharashtra, on Feb. 20, 2024, for 'a system for the separation of alkali from the blast furnace pot dust with utilization of waste flue gas.'
Inventor(s) include Das, Surya Kanta; Singhai, Mrigandra; Soren, Nilkant; Noorbhashshaik, Mabhu Subhani; Karanjkar, Chandrashekhar Ashok; Ahmed, Imran; Jayananda; and Hazra, Sujoy.
The application for the patent was published on Sept. 5, under issue no. 36/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a system for separation of alkali from blast furnace pot dust comprising a reactor for the leaching of alkali from pot dust using the waste flue gas in a batch process. The system injects the hot flue gas through a vertical connector mounted on the top of the reactor vessel. It would not only transfer heat to the leaching media but also improve the agitation of the system by continuous purging of flue gas to the system. The system performs a process scheme that includes froth floatation, followed by water leaching and filtration, for recovering carbon as a carbon rich froth, subjecting non froth to water leaching and filtering the leach solution to obtain solid residue substantially free of alkali and significantly reducing sulfur and chlorine level to make it suitable for use in steel plant operations, such as pellet, briquette or sinter making process, while the filtrate solution is evaporated and crystallized for getting alkaline salts as a separate product and recycling water after condensation."
Disclaimer: Curated by HT Syndication.
