(19)
(11) EP 4 416 330 A1

(12)

(43) Date of publication:
21.08.2024 Bulletin 2024/34

(21) Application number: 22792836.3

(22) Date of filing: 12.10.2022
(51) International Patent Classification (IPC): 
D21C 5/00(2006.01)
D21H 11/14(2006.01)
D21H 17/28(2006.01)
D21H 21/10(2006.01)
 D21C 5/02(2006.01)
D21H 17/00(2006.01)
D21H 17/37(2006.01)
D21H 21/36(2006.01)
(52) Cooperative Patent Classification (CPC):
D21H 11/14; D21C 5/02; D21H 17/28; D21H 17/375; D21H 21/10; D21H 17/005; D21C 5/005; D21H 21/36
(86) International application number:
PCT/FI2022/050678
(87) International publication number:
WO 2023/062277 (20.04.2023 Gazette 2023/16)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 12.10.2021 FI 20216054

(71) Applicant: Kemira Oyj
00180 Helsinki (FI)

(72) Inventors:
  • AHLGREN, Jonni
    02271 Espoo (FI)
  • HIETANIEMI, Matti
    02271 Espoo (FI)
  • KORHONEN, Markus
    02271 Espoo (FI)

(74) Representative: Berggren Oy 
P.O. Box 16 Eteläinen Rautatiekatu 10A
00101 Helsinki
00101 Helsinki (FI)

   


(54) METHOD FOR REDUCING STARCH CONTENT OF AN AQUEOUS PHASE REMOVED FROM FIBRE STOCK PREPARATION