(19)
(11) EP 1 115 946 A1

(12)

(43) Date of publication:
18.07.2001 Bulletin 2001/29

(21) Application number: 99939477.8

(22) Date of filing: 24.08.1999
(51) International Patent Classification (IPC)7D21C 9/153
(86) International application number:
PCT/FI9900/696
(87) International publication number:
WO 0011/262 (02.03.2000 Gazette 2000/09)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 24.08.1998 FI 981808

(71) Applicant: CRS Reactor Engineering (UK) Ltd.
26101 Rauma (FI)

(72) Inventors:
  • DE VOS, Rolf
    S-438 36 Landvetter (SE)
  • TIKKA, Panu
    FIN-26100 Rauma (FI)

(74) Representative: Langenskiƶld, Tord Karl Walter et al
Oy Jalo Ant-Wuorinen AbIso-Roobertinkatu 4-6
00120 Helsinki
00120 Helsinki (FI)

   


(54) BLEACHING OF MEDIUM CONSISTENCY PULP WITH OZONE WITHOUT HIGH SHEAR MIXING