(19)

(11)

EP 2 566 596 A2

(12)

(88) Date of publication A3: 29.12.2011 (43) Date of publication: 13.03.2013 Bulletin 2013/11 (21) Application number: 11725951.5 (22) Date of filing: 04.05.2011

(51) International Patent Classification (IPC):  B01D 11/04(2006.01) C07C 37/72(2006.01) (86) International application number: PCT/GB2011/050873 (87) International publication number: WO 2011/138608 (10.11.2011 Gazette 2011/45)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 05.05.2010 GB 201007472 (71) Applicant: Bangor University Bangor Gwynedd LLS7 2DG (GB)	(72) Inventors: DE BRAGANÇA, Radek Messias Bangor Gwynedd LL57 2UW (GB) BAIRD, Mark Stephen Bangor Gwynedd LL57 2UW (GB) (74) Representative: Wilson Gunn  Blackfriars House The Parsonage 5th Floor Manchester M3 2JA Manchester M3 2JA (GB)