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EP 3 230 494 A1

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(43) Date of publication: 18.10.2017 Bulletin 2017/42 (21) Application number: 14907885.9 (22) Date of filing: 11.12.2014

(51) International Patent Classification (IPC):  C25C 1/12(2006.01) C22B 3/42(2006.01) C22B 3/06(2006.01) C25C 7/00(2006.01) (86) International application number: PCT/CA2014/051197 (87) International publication number: WO 2016/090458 (16.06.2016 Gazette 2016/24)

(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 (71) Applicant: Optimizacion de Procesos Mineros S.A. Montréal, Québec H3X 2V8 (CA)	(72) Inventors: AMIGO PALACIOS, Mauricio Andrés Santiago 7560356 (CL) AMIGO JIMÉNEZ, Mauricio Santiago 7560356 (CL) (74) Representative: Prüfer & Partner mbB Patentanwälte · Rechtsanwälte  Sohnckestraße 12 81479 München 81479 München (DE)