(19)

(11)

EP 2 643 489 A1

(12)

(43) Date of publication: 02.10.2013 Bulletin 2013/40 (21) Application number: 11843209.5 (22) Date of filing: 25.11.2011

(51) International Patent Classification (IPC):  C22B 3/16(2006.01) C01B 31/24(2006.01) B01D 53/62(2006.01) (86) International application number: PCT/AU2011/001537 (87) International publication number: WO 2012/068639 (31.05.2012 Gazette 2012/22)

(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: 26.11.2010 AU 2010905241 (71) Applicant: Newcastle Innovation Limited Callaghan, NSW 2308 (AU)	(72) Inventors: DLUGOGORSKI, Bogdan Z Anna Bay New South Wales 2316 (AU) GHOORAH, Manisha Birmingham Gardens New South Wales 2287 (AU) KENNEDY, Eric M Newcastle New South Wales 2300 (AU) (74) Representative: Kalhammer, Georg  Lederer & Keller Patentanwälte Unsöldstrasse 2 80538 München 80538 München (DE)