MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202611025335 A) filed by Agrosil Private Limited, Kanpur, Uttar Pradesh, on March 3, for 'a sustainable process for the preparation of highly pure silicon carbide (sic) from agricultural waste.'
Inventor(s) include Mr. Navneet Gupta.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a sustainable process for the preparation of highly pure silicon carbide (SiC) from agricultural waste. The process comprises acid leaching and alkaline extraction of dried agricultural biomass to produce black liquor, followed by solid-liquid separation of the liquor to obtain a silica-lignin hybrid. Further, acidifying the black liquor (pH of 2-3) to precipitate a lignin-silica hybrid precursor; recovering and drying the precipitated hybrid precursor to constant weight; milling the dried precursor; thermally treatment at 1200-1600 C for 2-8 hours to form SiC material; heating the resulting material at 500-900 C for 2-4 hours to remove residual carbon; and purifying to obtain SiC powder. Additionally, the process provides high-purity SiC (90-98% pure) having a hardness of 9-9.5 Mohs, a semiconductor bandgap 2.3-3.3 eV for high-temperature applications."
Disclaimer: Curated by HT Syndication.
