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EP 3 810 309 A1

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(43) Date of publication: 28.04.2021 Bulletin 2021/17 (21) Application number: 18923334.9 (22) Date of filing: 19.06.2018

(51) International Patent Classification (IPC):  B01D 53/86(2006.01) B01J 35/00(2006.01) B01J 21/06(2006.01) (86) International application number: PCT/IB2018/054523 (87) International publication number: WO 2019/243870 (26.12.2019 Gazette 2019/52)

(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 (71) Applicant: 6K Inc. North Andover, MA 01845 (US)	(72) Inventors: HADIDI, Kamal Somerville, Massachusetts 02143 (US) WROBEL, Gregory Boxford, Massachusetts 01921 (US) REDJDAL, Makhlouf Stoneham, Massachusetts 02180 (US) (74) Representative: Forresters IP LLP  Skygarden Erika-Mann-Straße 11 80636 München 80636 München (DE)