(19)
(11) EP 2 751 331 A1

(12)

(43) Date of publication:
09.07.2014 Bulletin 2014/28

(21) Application number: 11871390.8

(22) Date of filing: 30.08.2011
(51) International Patent Classification (IPC): 
D21C 1/06(2006.01)
 D21C 3/02(2006.01)
(86) International application number:
PCT/SE2011/051038
(87) International publication number:
WO 2013/032377 (07.03.2013 Gazette 2013/10)
(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

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

(72) Inventors:
  • LINDSTRÖM, Mikael
    S-181 66 Lidingö (SE)
  • WILGOTSON, Fredrik
    852 31 Sundsvall (SE)

(74) Representative: Saitton, Hanna Johanna 
Valmet AB Gustaf Gidlöfs väg 4
851 94 Sundsvall
851 94 Sundsvall (SE)

   


(54) KRAFT COOKING METHOD USING POLYSULFIDE COOKING LIQUOR