MUMBAI, India, June 20 -- Intellectual Property India has published a patent application (202517048737 A) filed by Andritz Ag, Graz, Austria, on May 20, for 'method for the regeneration of acid.'
Inventor(s) include Brazda, Martin; Rechberger, Andreas; Baerhold, Frank; and Mitterecker, Stefan.
The application for the patent was published on June 20, under issue no. 25/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a method for obtaining or recovering acid from metal-containing solutions (13) of the acid through treatment by pyrohydrolysis of the solution and subsequent absorption and/or condensation of the gaseous acid formed in the process. The metal-containing solution (13) is fed to a heated reactor chamber (1) in which the metal-containing solution (13) is evaporated and in which the solution is split by pyrolysis into acids and metal oxides (12). According to the invention, for heating, a heat transfer medium (11), which partially or completely consists of water vapour, is fed to the reactor chamber (1), by means of which the metal-containing solution (13) is heated to the temperature required for pyrohydrolysis."
The patent application was internationally filed on Dec. 07, 2023, under International application No.PCT/EP2023/084682.
Disclaimer: Curated by HT Syndication.
