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EP 4 126 338 A1

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(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 21715668.6 (22) Date of filing: 10.03.2021

(51) International Patent Classification (IPC):  B01J 19/10(1980.01) A61L 2/025(2000.01) B01D 9/00(1968.09) B01J 19/24(1980.01) (52) Cooperative Patent Classification (CPC): B01J 19/10; B01D 9/0081; A61L 2/025; B01J 2219/00765; B01J 19/243; B01D 11/0265; B01D 11/0226; B01F 25/4311; B01F 25/4341 (86) International application number: PCT/FI2021/050174 (87) International publication number: WO 2021/191497 (30.09.2021 Gazette 2021/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 24.03.2020 FI 20205291 (71) Applicant: Lappeenrannan-Lahden teknillinen yliopisto LUT 53851 Lappeenranta (FI)	(72) Inventors: TAMMINEN, Jussi 53851 Lappeenranta (FI) VARIS, Juha 53851 Lappeenranta (FI) KOIRANEN, Tuomas 53851 Lappeenranta (FI) GRADOV, Dmitry 53851 Lappeenranta (FI) (74) Representative: Väänänen, Janne Kalervo  Vanarix Laaksolahdentie 74 02730 Espoo 02730 Espoo (FI)