(19)
(11) EP 0 909 354 A1

(12)

(43) Date of publication:
21.04.1999 Bulletin 1999/16

(21) Application number: 97930929.0

(22) Date of filing: 16.06.1997
(51) International Patent Classification (IPC): 
D21C 9/ 10( . )
D21C 9/ 14( . )
(86) International application number:
PCT/SE1997/001060
(87) International publication number:
WO 1998/000602 (08.01.1998 Gazette 1998/01)
(84) Designated Contracting States:
AT FI SE

(30) Priority: 28.06.1996 SE 19960002602

(71) Applicant: SUNDS DEFIBRATOR INDUSTRIES AB
S-851 94 Sundsvall (SE)

(72) Inventors:
  • BOMAN, Rolf
    S-856 43 Sundsvall (SE)
  • BOKSTRÖM, Monica
    S-860 25 Kovland (SE)
  • GERMGARD, Ulf
    S-865 31 Alnö (SE)
  • MELLANDER, Pia
    S-865 32 Alnö (SE)
  • NORDEN, Solveig
    S-862 41 Njurunda (SE)
  • SUNDIN, Matts
    S-865 32 Alnö (SE)

(74) Representative: Karlsson, Leif Karl Gunnar, et al 
L.A. Groth & Co. KB, Box 6107
102 32 Stockholm
102 32 Stockholm (SE)

   


(54) PRESSURIZED CHLORINE DIOXIDE BLEACHING WITH RECOVERY OF CHLORINE DIOXIDE