(19)

(11)

EP 2 054 534 A1

(12)

(43) Date of publication: 06.05.2009 Bulletin 2009/19 (21) Application number: 07784849.7 (22) Date of filing: 23.08.2007

(51) International Patent Classification (IPC):  C22B 3/08(2006.01) C22B 23/00(2006.01) C22B 3/44(2006.01) (86) International application number: PCT/AU2007/001213 (87) International publication number: WO 2008/022395 (28.02.2008 Gazette 2008/09)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 23.08.2006 AU 2006904565 (71) Applicant: Murrin Murrin Operations Pty Ltd Perth, WA 6000 (AU)	(72) Inventor: RODRIGUEZ, Michael Kingsley, Western Australia 6026 (AU) (74) Representative: Thomson, Craig Richard  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)