EP 1954871 A1 20080813 - PROCESS OF PRODUCING HIGH-YIELD PULP
Title (en)
PROCESS OF PRODUCING HIGH-YIELD PULP
Title (de)
VERFAHREN ZUR HERSTTELLUNG VON HOCHAUSBEUTEZELLSTOFF
Title (fr)
PROCEDE DE PRODUCTION DE PATE A HAUT RENDEMENT
Publication
Application
Priority
- SE 2006050460 W 20061108
- EP 05111643 A 20051202
- EP 06813080 A 20061108
Abstract (en)
[origin: WO2007064287A1] The present invention relates to a process for preparing a high-yield pulp comprising a) treating a lignocellulose containing material chemically by means of an oxidising system comprising at least one non-enzymatic oxidant substantially free from ozone and chlorine dioxide and an activator at a pH from about 2 to about 6.5; and b) treating the lignocellulose containing material mechanically for a time sufficient to produce a high-yield pulp, wherein the lignocellulose containing material is chemically treated prior to and/or during any mechanical treatment stage, and wherein the lignocellulose containing material is not chemically treated at a pH from about 11.5 to about 14 between stages a) and b).
IPC 8 full level
D21B 1/02 (2006.01)
CPC (source: EP NO)
D21B 1/02 (2013.01 - NO); D21C 9/163 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007064287 A1 20070607; AR 057948 A1 20071226; AT E514813 T1 20110715; AU 2006321020 A1 20070607; AU 2006321020 B2 20110210; BR PI0619765 A2 20111018; BR PI0619765 B1 20161213; CA 2631545 A1 20070607; CA 2631545 C 20140819; CN 101321908 A 20081210; CN 101321908 B 20110817; EP 1954871 A1 20080813; EP 1954871 B1 20110629; JP 2009529609 A 20090820; JP 5091154 B2 20121205; NO 20082435 L 20080701; NO 339754 B1 20170130; NZ 568622 A 20101029; RU 2380466 C1 20100127; ZA 200805755 B 20090429
DOCDB simple family (application)
SE 2006050460 W 20061108; AR P060105235 A 20061128; AT 06813080 T 20061108; AU 2006321020 A 20061108; BR PI0619765 A 20061108; CA 2631545 A 20061108; CN 200680045379 A 20061108; EP 06813080 A 20061108; JP 2008543237 A 20061108; NO 20082435 A 20080527; NZ 56862206 A 20061108; RU 2008126929 A 20061108; ZA 200805755 A 20080701