Method for producing oxidized lignin in kraft pulp mill

Autor: Pauliina Sjögård, Outi Poukka, Katariina Kemppainen, Anna Kalliola, Tiina Liitiä, Tapio Vehmas, Lauri Pehu-Lehtonen

Publikováno v: Sjögård, P, Poukka, O, Kemppainen, K, Kalliola, A, Liitiä, T, Vehmas, T & Pehu-Lehtonen, L Aug. 02 2020, Method for producing oxidized lignin in kraft pulp mill, Patent No. FI129846B .
VTT Technical Research Centre of Finland-PURE

According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interfering the mai

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https://cris.vtt.fi/en/publications/cdccb371-8f51-41a8-b27a-8d927efe1b30

LigniOx Process Concept to Produce Lignin Dispersants at a Kraft Pulp Mill and an Organosolv Biorefinery

Autor: Anna Kalliola, Tiina Liitiä, Iris Winberg, Katariina Kemppainen, Outi Poukka, Julien Davin, Hanne Wikberg, Vandezande, P., Pauliina Sjögård, Lauri Pehu-lehtonen

Publikováno v: VTT Technical Research Centre of Finland-PURE
Kalliola, A, Liitiä, T, Winberg, I, Kemppainen, K, Poukka, O, Davin, J, Wikberg, H, Vandezande, P, Sjögård, P & Pehu-lehtonen, L 2022, LigniOx Process Concept to Produce Lignin Dispersants at a Kraft Pulp Mill and an Organosolv Biorefinery . in A Virtanen, K Torvinen & J Vepsäläinen (eds), NWBC 2022 : The 10th Nordic Wood Biorefinery Conference . VTT Technical Research Centre of Finland, VTT Technology, no. 409, pp. 125-130, 10th Nordic Wood Biorefinery Conference, NWBC 2022, Helsinki, Finland, 25/10/22 . < https://publications.vtt.fi/pdf/technology/2022/T409.pdf >

The LigniOx oxidation process uses O2 under alkaline conditions to solubilise water-insoluble lignins. The oxidized lignins with increased anionic charge have been demonstrated to work as a concrete plasticiser and versatile dispersants. Recently, a

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https://cris.vtt.fi/en/publications/18d8a57b-0dd9-452c-ad9c-e3cb533e9f9b