(19)

(11)

EP 1 968 736 A2

(12)

(88) Date of publication A3: 06.12.2007 (43) Date of publication: 17.09.2008 Bulletin 2008/38 (21) Application number: 06839772.8 (22) Date of filing: 08.11.2006

(51) International Patent Classification (IPC):  B01J 8/00(2006.01) C01B 3/32(2006.01) (86) International application number: PCT/US2006/060672 (87) International publication number: WO 2007/076175 (05.07.2007 Gazette 2007/27)

(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 NL PL PT RO SE SI SK TR (30) Priority: 19.12.2005 US 311570 (71) Applicant: Arvin Technologies, Inc. Troy, MI 48084 (US)	(72) Inventors: IVERSON, Robert, J. Nashville, IN 47448 (US) CRANE, Samuel, N. Columbus, IN 47203 (US) (74) Representative: Jones, John Bryn et al Withers & Rogers LLP Goldings House 2 Hays Lane London SE1 2HW London SE1 2HW (GB)