MUMBAI, India, Oct. 31 -- Intellectual Property India has published a patent application (202517093593 A) filed by Technip Energies France, Nanterre, France, on Sept. 29, for 'production of phosphates using phosphate rock.'
Inventor(s) include Abburi, Visweswara Rao; Sathyanarayana, Theeda; and Malsan, Philippe.
The application for the patent was published on Oct. 31, under issue no. 44/2025.
According to the abstract released by the Intellectual Property India: "The present disclosure provides a simple process for the production of value-added high purity phosphates from phosphate sources low-grade phosphate sources. Said process comprises treatment of the phosphate source with sulfuric acid in a continuous reactor, filtration of obtained slurry, washing the filtered cake for additional collection of P2O5, followed by treating the obtained solution with a source of calcium oxide so as to precipitate out a calcium phosphate rich in phosphate, and low on impurities. This can be converted to value-add products such as double super phosphate by subjecting it to further downstream processing through acidulation with sulfuric acid, high quality triple super phosphate by treating with merchant grade phosphoric acid, as a feed for the manufacture of merchant grade phosphoric acid. Thus obtained phosphate rich solution has MER less than 8%, and a P2O5 concentration of upto 24%."
The patent application was internationally filed on Mar. 26, 2024, under International application No.PCT/IN2024/050316.
Disclaimer: Curated by HT Syndication.
