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(11)

EP 3 445 894 A1

(12)

(43) Date of publication: 27.02.2019 Bulletin 2019/09 (21) Application number: 17721464.0 (22) Date of filing: 13.04.2017

(51) International Patent Classification (IPC):  C25B 1/04(2006.01) B01J 23/75(2006.01) C25B 11/04(2006.01) B01J 33/00(2006.01) (86) International application number: PCT/IB2017/052154 (87) International publication number: WO 2017/182923 (26.10.2017 Gazette 2017/43)

(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: MA MD (30) Priority: 18.04.2016 US 201662324093 P (71) Applicant: SABIC Global Technologies B.V. 4612 PX Bergen op Zoom (NL)	(72) Inventors: LI, Lain-Jong Thuwal 23955-6900 (SA) YANG, Xiulin Thuwal 23955-6900 (SA) IDRISS, Hicham Thuwal 23955-6900 (SA) (74) Representative: J A Kemp  14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)