(19)

(11)

EP 2 396 288 A1

(12)

(43) Date of publication: 21.12.2011 Bulletin 2011/51 (21) Application number: 10801092.7 (22) Date of filing: 21.10.2010

(51) International Patent Classification (IPC):  C06B 23/00(2006.01) C06B 47/14(2006.01) (86) International application number: PCT/ZA2010/000062 (87) International publication number: WO 2011/060455 (19.05.2011 Gazette 2011/20)

(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: 12.11.2009 ZA 200907945 (71) Applicant: AEL MINING SERVICES LIMITED 2196 Johannesburg (ZA)	(72) Inventor: VERMAAK, Charl 2196 Sandton (ZA) (74) Representative: Patentanwälte Ruff, Wilhelm, Beier, Dauster & Partner  Kronenstrasse 30 70174 Stuttgart 70174 Stuttgart (DE)