(19)

(11)

EP 2 231 301 A1

(12)

(43) Date of publication: 29.09.2010 Bulletin 2010/39 (21) Application number: 08856541.1 (22) Date of filing: 08.12.2008

(51) International Patent Classification (IPC):  B01D 39/08(2006.01) D01D 5/00(2006.01) (86) International application number: PCT/GB2008/004027 (87) International publication number: WO 2009/071909 (11.06.2009 Gazette 2009/24)

(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: 06.12.2007 GB 0723895 (71) Applicant: Munro Technology Ltd Wincanton Somerset BA9 9AF (GB)	(72) Inventor: YOOSFINEJAD, Ata Wincanton, Somerset BA9 9AF (GB) (74) Representative: Harrison, Ivor Stanley  Withers & Rogers LLP Goldings House 2 Hays Lane London SE1 2HW London SE1 2HW (GB)