(19)
(11) EP 2 427 598 A1

(12)

(43) Date of publication:
14.03.2012 Bulletin 2012/11

(21) Application number: 09846901.8

(22) Date of filing: 06.05.2009
(51) International Patent Classification (IPC): 
D21C 11/06(2006.01)
B01D 53/74(2006.01)
B01D 43/00(2006.01)
B01D 53/80(2006.01)
(86) International application number:
PCT/SE2009/050493
(87) International publication number:
WO 2011/002354 (06.01.2011 Gazette 2011/01)
(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 MK MT NL NO PL PT RO SE SI SK TR

(71) Applicant: Metso Power AB
402 75 Göteborg (SE)

(72) Inventors:
  • WIMBY, Martin
    SE-423 36 Torslanda (SE)
  • NUNES, Joana
    SE-449 36 Nödinge (SE)

(74) Representative: Andréasson, Ivar 
Hynell Patenttjänst AB P.O. Box 138
683 23 Hagfors
683 23 Hagfors (SE)

   


(54) PROCESS FOR IMPROVED LEACHING OF ELECTROSTATIC PRECIPITATOR ASH FROM A RECOVERY BOILER