EP 3625390 A1 20200325 - METHOD FOR TREATING A FIBRE SUSPENSION STREAM
Title (en)
METHOD FOR TREATING A FIBRE SUSPENSION STREAM
Title (de)
VERFAHREN ZUR BEHANDLUNG EINES FASERSUSPENSIONSSTROMES
Title (fr)
PROCÉDÉ DE TRAITEMENT D'UN FLUX DE SUSPENSION DE FIBRES
Publication
Application
Priority
- DE 102017110815 A 20170518
- EP 2018059353 W 20180412
Abstract (en)
[origin: WO2018210495A1] The invention relates to a method for treating a fibrous material suspension stream which is formed at least partially from used paper, in particular OCC, said method at least comprising a dissolution and a fractionation stage (13) for forming a long-fibre fraction stream (2) and a first short-fibre fraction stream (3.1), the long-fibre fraction stream (2) being conducted into a first grinding stage (15.2) and ground. The method according to the invention is characterised in that the first short-fibre fraction stream (3.1) is conducted, preferably directly, into a separation stage (14) for forming a first fine material filler stream (4.1) and a second short-fibre fraction stream (3.2), and that at least some of the first fine material filler stream (4.1) is conducted into a grinding stage (15.4) and/or at least some of the second short-fibre fraction stream (3.2) is conducted into the grinding stage (15.4) and/or into a further grinding stage (15.3) and ground.
IPC 8 full level
D21D 1/00 (2006.01); D21D 99/00 (2006.01)
CPC (source: EP)
D21C 5/02 (2013.01); D21D 1/00 (2013.01); D21D 99/00 (2013.01); Y02W 30/64 (2015.05)
Citation (search report)
See references of WO 2018210495A1
Designated contracting state (EPC)
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 state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018210495 A1 20181122; CN 110603359 A 20191220; DE 102017110815 A1 20181122; EP 3625390 A1 20200325
DOCDB simple family (application)
EP 2018059353 W 20180412; CN 201880030294 A 20180412; DE 102017110815 A 20170518; EP 18717595 A 20180412