(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