(19)

(11)

EP 2 429 939 A1

(12)

(43) Date of publication: 21.03.2012 Bulletin 2012/12 (21) Application number: 09844451.6 (22) Date of filing: 08.05.2009

(51) International Patent Classification (IPC):  C01B 7/20(2006.01) (86) International application number: PCT/US2009/043332 (87) International publication number: WO 2010/128970 (11.11.2010 Gazette 2010/45)

(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 (71) Applicant: International Isotopes Inc. Idaho Falls, ID 83401 (US)	(72) Inventor: WILDMAN, Carrie Idaho Falls, ID 83404 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser  Anwaltssozietät Leopoldstrasse 4 80802 München 80802 München (DE)