(19)
(11) EP 2 276 883 A1

(12)

(43) Date of publication:
26.01.2011 Bulletin 2011/04

(21) Application number: 09746853.2

(22) Date of filing: 23.04.2009
(51) International Patent Classification (IPC): 
D21C 9/10(2006.01)
D21C 9/153(2006.01)
D21C 9/14(2006.01)
(86) International application number:
PCT/SE2009/050422
(87) International publication number:
WO 2009/139693 (19.11.2009 Gazette 2009/47)
(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
Designated Extension States:
AL BA RS

(30) Priority: 13.05.2008 SE 0801074

(71) Applicant: Metso Paper, Inc.
00101 Helsinki (FI)

(72) Inventor:
  • NORDÉN, Solveig
    S-852 37 Sundsvall (SE)

(74) Representative: Melin Granberg, Linda et al
Groth & Co KB P.O. Box 6107
S-102 32 Stockholm
S-102 32 Stockholm (SE)

   


(54) METHOD OF BLEACHING PULP WITH OZONE, CHLORINE DIOXIDE AND PEROXIDE