(19)

(11)

EP 3 664 935 A1

(12)

(43) Date of publication: 17.06.2020 Bulletin 2020/25 (21) Application number: 18752485.5 (22) Date of filing: 08.08.2018

(51) International Patent Classification (IPC):  B01J 37/30(2006.01) B01J 27/185(2006.01) B01D 53/56(2006.01) B01J 23/02(2006.01) B01J 35/10(2006.01) (86) International application number: PCT/EP2018/071493 (87) International publication number: WO 2019/030278 (14.02.2019 Gazette 2019/07)

(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: 09.08.2017 US 201762543099 P (71) Applicant: Solvay SA 1120 Bruxelles (BE)	(72) Inventors: DELPLANCHE, Thierry 1435 Mont-St-Guibert (BE) GERVASINI, Antonella 20133 Milano (IT) (74) Representative: Vande Gucht, Anne  Solvay S.A. Département de la Propriété Industrielle Rue de Ransbeek, 310 1120 Bruxelles 1120 Bruxelles (BE)