(19)

(11)

EP 1 835 987 A2

(12)

(88) Date of publication A3: 10.08.2006 (43) Date of publication: 26.09.2007 Bulletin 2007/39 (21) Application number: 05813463.6 (22) Date of filing: 23.11.2005

(51) International Patent Classification (IPC):  B01J 3/04(2006.01) (86) International application number: PCT/GB2005/004497 (87) International publication number: WO 2006/056768 (01.06.2006 Gazette 2006/22)

(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: 23.11.2004 GB 0425684 23.11.2004 GB 0425686 16.02.2005 GB 0503215 (71) Applicant: Estech Europe Limited Walsall West Midlands WS9 8TY (GB)	(72) Inventor: BURROWS, Paul Birmingham B20 1EF (GB) (74) Representative: Lockey, Robert Alexander  Forrester & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)