(19)

(11)

EP 1 638 681 A1

(12)

(43) Date of publication: 29.03.2006 Bulletin 2006/13 (21) Application number: 03748154.6 (22) Date of filing: 02.10.2003

(51) International Patent Classification (IPC):  B01J 19/08(1980.01) B01D 53/32(1968.09) (86) International application number: PCT/FI2003/000717 (87) International publication number: WO 2004/030806 (15.04.2004 Gazette 2004/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 02.10.2002 NO 20024750 (71) Applicant: Konkola, Seppo 4014 Stavanger (NO)	(72) Inventors: KONKOLA, Seppo N-4014 Stavanger (NO) SCHIEWE, Robert Bakersfield, CA 93309 (US) (74) Representative: Savela, Antti-Jussi Tapani  Patent Agency Compatent Ltd. Hitsaajankatu 6 00810 Helsinki 00810 Helsinki (FI)