MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202617042887 A) filed by Valmet Ab on April 03, 2026, for Method For Extracting Lignin From A Lignin Source.
Inventors include Littorin, Anders; Karlsson, Hanna; Wimby, Martin; Wallmo, Henrik; Tolonen, Lasse; Jensen, Anna; Uhlin, Anders; and Wadsborn, Rickard.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: Embodiments of the present disclosure may include a method for extracting lignin from a lignin source, including a slurrying in which the lignin source is mixed with a first acidifier thereby forming a first acidic slurry Embodiments may also include a first separation step in which lignin is separated from the acidic slurry forming a first lignin cake. Embodiments may also include a re-slurrying step in which the first lignin cake is mixed with a second acidifier thereby forming a second acidic slurry. Embodiments may also include a second separation step in which the lignin is separated from the second acidic slurry forming a second lignin cake. In some embodiments, a temperature of the first acidic slurry in the slurrying stage may be kept equal to or lower than 80 °C.
Disclaimer: Curated by HT Syndication.
