(19)

(11)

EP 2 819 773 A1

(12)

(43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 12707731.1 (22) Date of filing: 28.02.2012

(51) International Patent Classification (IPC):  B01F 1/00(2006.01) B67D 7/02(2010.01) B01F 15/02(2006.01) (86) International application number: PCT/EP2012/053380 (87) International publication number: WO 2013/127442 (06.09.2013 Gazette 2013/36)

(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 Designated Extension States: BA ME (71) Applicant: Ecolab Inc. St. Paul, MN 55102-1390 (US)	(72) Inventors: LOHWIESER, Heribert 83313 Siegsdorf (DE) RUPPERT, Andreas 83313 Siegsdorf (DE) (74) Representative: Godemeyer Blum Lenze - werkpatent  An den Gärten 7 51491 Overath 51491 Overath (DE)