(19)

(11)

EP 3 277 864 A1

(12)

(43) Date of publication: 07.02.2018 Bulletin 2018/06 (21) Application number: 16771479.9 (22) Date of filing: 22.03.2016

(51) International Patent Classification (IPC):  C25C 3/08(2006.01) C25C 3/16(2006.01) (86) International application number: PCT/IB2016/051592 (87) International publication number: WO 2016/157021 (06.10.2016 Gazette 2016/40)

(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: 30.03.2015 GB 201505435 (71) Applicant: Dubai Aluminium PJSC Dubai (AE)	(72) Inventors: JONQUA, Bernard Dubai (AE) ZAROUNI, Abdalla Sharjah (AE) (74) Representative: Schmidt, Martin Peter  IXAS Conseil 15, rue Emile Zola 69002 Lyon 69002 Lyon (FR)