(19)
(11) EP 3 673 110 A1

(12)

(43) Date of publication:
01.07.2020 Bulletin 2020/27

(21) Application number: 18847479.5

(22) Date of filing: 05.07.2018
(51) International Patent Classification (IPC): 
D21C 1/02(2006.01)
D21C 3/24(2006.01)
 D21C 1/04(2006.01)
(86) International application number:
PCT/SE2018/050738
(87) International publication number:
WO 2019/039982 (28.02.2019 Gazette 2019/09)
(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: 25.08.2017 SE 1751023

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

(72) Inventors:
  • WILGOTSON, Fredrik
    852 31 Sundsvall (SE)
  • ANTONSSON, Stefan
    117 58 Stockholm (SE)

(74) Representative: Becker, Eberhard 
Becker & Kurig Partnerschaft Patentanwälte PartmbB Bavariastrasse 7
80336 München
80336 München (DE)

   


(54) IMPROVED COMPACT PROCESS FOR PRODUCING PREHYDROLYZED PULP