(19)
(11) EP 3 606 636 A1

(12)

(43) Date of publication:
12.02.2020 Bulletin 2020/07

(21) Application number: 18780721.9

(22) Date of filing: 04.04.2018
(51) International Patent Classification (IPC): 
B01D 33/21(2006.01)
D21C 11/04(2006.01)
 D21C 11/00(2006.01)
(86) International application number:
PCT/SE2018/050354
(87) International publication number:
WO 2018/186795 (11.10.2018 Gazette 2018/41)
(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 07.04.2017 SE 1750424

(71) Applicant: Valmet AB
851 94 Sundsvall (SE)

(72) Inventors:
  • JANSSON, Roger
    653 50 Karlstad (SE)
  • SÖDERMAN, Jerk
    653 42 Karlstad (SE)
  • BJÖRNVALL, Patrik
    663 32 Skoghall (SE)
  • RANSJÖ, Henrik
    663 41 Hammarö (SE)
  • LÖWNERTZ, Patrik
    171 68 Solna (SE)

(74) Representative: Becker Kurig Straus 
Patentanwälte Bavariastrasse 7
80336 München
80336 München (DE)

   


(54) PRESSURIZED DISC FILTER FOR CAUSTICIZATION LIQUORS CONTAINING LIME MUD