(19)

(11)

EP 1 802 392 A1

(12)

(43) Date of publication: 04.07.2007 Bulletin 2007/27 (21) Application number: 05808760.2 (22) Date of filing: 19.08.2005

(51) International Patent Classification (IPC):  B01J 20/34(2006.01) B01D 53/00(2006.01) C10G 25/05(2006.01) C10K 1/32(2006.01) (86) International application number: PCT/US2005/029715 (87) International publication number: WO 2006/028686 (16.03.2006 Gazette 2006/11)

(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: 01.09.2004 US 932177 18.08.2005 US 207154 (71) Applicants: Sud-Chemie, Inc. Louisville, KY 40210 (US) Zeochem LLC Louisville, KY 40210 (US)	(72) Inventors: WESTON, Eric, J. Shepherdsville, KY 40165 (US) SPIVEY, Steve, R. Louisville, KY 40299 (US) WESTON, Kerry, C. Louisville, KY 40229 (US) (74) Representative: Westendorp, Michael Oliver  Patentanwälte Splanemann Baronetzky Westendorp Rumfordstrasse 7 80469 München 80469 München (DE)