(19)

(11)

EP 4 196 245 A1

(12)

(43) Date of publication: 21.06.2023 Bulletin 2023/25 (21) Application number: 21765987.9 (22) Date of filing: 06.08.2021

(51) International Patent Classification (IPC):  B01D 29/33(2006.01) B01D 35/06(2006.01) B01D 35/153(2006.01) B03C 1/00(2006.01) C02F 1/68(2023.01) B01D 29/60(2006.01) B01D 35/143(2006.01) B01D 37/02(2006.01) C02F 1/48(2023.01) (52) Cooperative Patent Classification (CPC): C02F 2209/03; B01D 35/153; B01D 35/1435; B01D 29/606; B01D 29/33; B01D 35/06; B01D 37/025; B01D 2201/56; C02F 1/688; C02F 2101/203; C02F 1/488; C02F 1/481; C02F 2201/005; C02F 2303/16; C02F 2303/22; B03C 1/286; B03C 2201/28; B03C 2201/18; B03C 1/0332; B03C 2201/32 (86) International application number: PCT/IB2021/057261 (87) International publication number: WO 2022/034456 (17.02.2022 Gazette 2022/07)

(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: 11.08.2020 IT 202000019999 (71) Applicant: Manta Ecologica S.r.l. 20900 Monza (MB) (IT)	(72) Inventor: CAVALLI, Luca 20900 Monza (MB) (IT) (74) Representative: Fisauli, Beatrice A. M.  Con Lor S.p.A Via Bronzino, 8 20133 Milano 20133 Milano (IT)