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(11)

EP 2 670 871 A1

(12)

(43) Date of publication: 11.12.2013 Bulletin 2013/50 (21) Application number: 12706113.3 (22) Date of filing: 02.02.2012

(51) International Patent Classification (IPC):  C22B 1/02(2006.01) C22B 11/02(2006.01) (86) International application number: PCT/IB2012/050485 (87) International publication number: WO 2012/104806 (09.08.2012 Gazette 2012/32)

(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 (30) Priority: 03.02.2011 ZA 201100894 (71) Applicant: Western Platinum Ltd 0284 Marikana (ZA)	(72) Inventors: BEZUIDENHOUT, Gert, Adrian 2191 Johannesburg (ZA) EKSTEEN, Jacobus, Johannes 2191 Johannesburg (ZA) (74) Representative: von Füner, Nicolai et al Von Füner Ebbinghaus Finck Hano Patentanwälte Mariahilfplatz 3 81541 München 81541 München (DE)