(19)

(11)

EP 2 569 075 A1

(12)

(43) Date of publication: 20.03.2013 Bulletin 2013/12 (21) Application number: 11780889.9 (22) Date of filing: 11.05.2011

(51) International Patent Classification (IPC):  B01D 41/04(2006.01) F01N 3/023(2006.01) (86) International application number: PCT/SE2011/050600 (87) International publication number: WO 2011/142718 (17.11.2011 Gazette 2011/46)

(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: 11.05.2010 SE 1050468 (71) Applicant: Stockforsa Invest AB 211 14 Malmö (SE)	(72) Inventor: HÅKANSSON, Mikael S-237 35 Bjärred (SE) (74) Representative: Bergström, Johan Erik  Mindmap IPR AB P.O. Box 138 683 23 Hagfors 683 23 Hagfors (SE)