(19)

(11)

EP 0 699 102 A1

(12)

(43) Date of publication: 06.03.1996 Bulletin 1996/10 (21) Application number: 94916458.0 (22) Date of filing: 13.05.1994

(51) International Patent Classification (IPC):  B01D 47/ 06( . ) B01D 51/ 08( . ) B01D 53/ 52( . ) B01J 19/ 10( . ) B01D 49/ 00( . ) B01D 53/ 50( . ) B01D 53/ 74( . ) (86) International application number: PCT/SE1994/000447 (87) International publication number: WO 1994/026391 (24.11.1994 Gazette 1994/26)

(84) Designated Contracting States: AT DE ES FR PT SE (30) Priority: 19.05.1993 SE 19930001713 (71) Applicant: Kvaerner Pulping Technologies AB S-651 15 Karlstad (SE)	(72) Inventors: NILSSON, Bengt S-663 00 Skoghall (SE) WENNBERG, Olle S-413 18 Göteborg (SE) (74) Representative: Lundquist, Lars-Olof  L-O Lundquist Patentbyra Box 80 S-651 03 Karlstad S-651 03 Karlstad (SE)