(19)

(11)

EP 2 244 981 A2

(12)

(88) Date of publication A3: 08.10.2009 (43) Date of publication: 03.11.2010 Bulletin 2010/44 (21) Application number: 09704125.5 (22) Date of filing: 19.01.2009

(51) International Patent Classification (IPC):  C01G 23/047(2006.01) C01G 25/02(2006.01) C01G 23/053(2006.01) (86) International application number: PCT/EP2009/050544 (87) International publication number: WO 2009/092684 (30.07.2009 Gazette 2009/31)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 22.01.2008 GB 0801123 (71) Applicant: Westfälische Wilhelms-Universität Münster 48149 Münster (DE)	(72) Inventors: SUN, Taolei 48149 Münster (DE) TANG, Kangjian 48149Münster (DE) (74) Representative: Harrison, Robert John  24IP Law Group Sonnenberg Fortmann Herzogspitalstraße 10a 80331 München 80331 München (DE)