(19)

(11)

EP 2 231 323 A2

(12)

(88) Date of publication A3: 12.11.2009 (43) Date of publication: 29.09.2010 Bulletin 2010/39 (21) Application number: 08866152.5 (22) Date of filing: 04.12.2008

(51) International Patent Classification (IPC):  B01J 13/00(2006.01) (86) International application number: PCT/US2008/013358 (87) International publication number: WO 2009/085091 (09.07.2009 Gazette 2009/28)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 27.12.2007 US 9245 (71) Applicant: W. R. Grace & Co.-Conn Columbia, MD 21044 (US)	(72) Inventor: PRYOR, James Neil West Friendship Maryland 21794 (US) (74) Representative: UEXKÜLL & STOLBERG  Patentanwälte Beselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)