(19)

(11)

EP 3 829 737 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 19753253.4 (22) Date of filing: 22.07.2019

(51) International Patent Classification (IPC):  B01D 19/02(2006.01) B06B 1/00(2006.01) (86) International application number: PCT/EP2019/069711 (87) International publication number: WO 2020/030418 (13.02.2020 Gazette 2020/07)

(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: 06.08.2018 GB 201812759 (71) Applicant: Bubble-Tech GmbH 6300 Zug (CH)	(72) Inventor: BATES, Darren 6300 Zug (CH) (74) Representative: Swindell & Pearson Limited  48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)