Global Patent Index - EP 1320640 A1

EP 1320640 A1 2003-06-25 - STEAMING PROCESS

Title (en)

STEAMING PROCESS

Title (de)

DÄMPFUNGSVERFAHREN

Title (fr)

PROCEDE DE TRAITEMENT A LA VAPEUR

Publication

EP 1320640 A1 (EN)

Application

EP 01960785 A

Priority

  • FI 0100703 W
  • FI 20001787 A

Abstract (en)

[origin: WO0214599A1] The invention relates to a method of steaming lignocellulosic material to be pulped. The material is treated in a superheated steam atmosphere. The treatment can be used for loosening up the structure of fibre for mechanical pulping and/or for facilitating the absorption of delignifying chemicals into the fibre.

IPC 1-7 (main, further and additional classification)

D21C 1/02; D21B 1/02

IPC 8 full level (invention and additional information)

D21B 1/02 (2006.01); D21C 1/02 (2006.01)

CPC (invention and additional information)

D21B 1/02 (2013.01); D21C 1/02 (2013.01)

Citation (third parties)

Third party :

  • US 3619348 A 19711109 - ASPLUND ARNE JOHAN ARTHUR, et al
  • GRACE T.M. ET AL.: "Pulp and paper manufacture, 3rd ed., Alkaline pulping", 1996, JOINT TEXTBOOK COMMITTEE OF THE PAPER INDUSTRY, CANADA, ISBN: 0-919893-71, pages: 158 - 160, XP003011495
  • See also references of WO 0214599A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0214599 A1 20020221; WO 0214599 A9 20030619; WO 0214599 A9 20030918; AT 424474 T 20090315; AU 8218401 A 20020225; DE 60137856 D1 20090416; EP 1320640 A1 20030625; EP 1320640 B1 20090304; FI 117560 B 20061130; FI 20001787 A0 20000814; FI 20001787 A 20020215

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