EP 2834408 A1 20150211 - PROCESS FOR REMOVAL OF SOLID NON-FIBROUS MATERIAL FROM PULP
Title (en)
PROCESS FOR REMOVAL OF SOLID NON-FIBROUS MATERIAL FROM PULP
Title (de)
VERFAHREN ZUR ENTFERNUNG VON FESTEM FASERFREIEM MATERIAL AUS ZELLSTOFF
Title (fr)
PROCÉDÉ POUR L'ÉLIMINATION DE MATIÈRE NON FIBREUSE SOLIDE À PARTIR D'UNE PÂTE
Publication
Application
Priority
- SE 1250336 A 20120403
- EP 2013056557 W 20130327
Abstract (en)
[origin: WO2013149913A1] The present invention relates to a process for removal of solid non-fibrous material from an aqueous pulp suspension comprising providing an aqueous pulp suspension comprising solid non-fibrous material, removing at least part of the solid non-fibrous material from the aqueous pulp suspension thereby forming an aqueous pulp suspension depleted in solid non-fibrous material, dewatering the aqueous pulp suspension depleted in solid non-fibrous material thereby forming a web comprising cellulose-containing fibres and a filtrate comprising residual solid non-fibrous material removing at least part of the residual solid non- fibrous material from the filtrate thereby forming a filtrate depleted in residual solid non- fibrous material and an aqueous stream comprising at least part of the removed residual solid non-fibrous material and diluting the aqueous pulp suspension and/or the aqueous pulp suspension depleted in solid non-fibrous material with at least part of the filtrate depleted in residual solid non-fibrous material, whereby the aqueous stream comprising at least part of the removed residual solid non-fibrous material is purged from the system.
IPC 8 full level
CPC (source: EP US)
D21B 1/06 (2013.01 - US); D21C 5/02 (2013.01 - EP US); D21C 9/18 (2013.01 - EP US); D21D 5/18 (2013.01 - US); D21H 11/14 (2013.01 - US); Y02W 30/64 (2015.05 - EP US)
Citation (search report)
See references of WO 2013149913A1
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 2013149913 A1 20131010; CA 2869215 A1 20131010; EP 2834408 A1 20150211; IN 9180DEN2014 A 20150710; US 2015122442 A1 20150507
DOCDB simple family (application)
EP 2013056557 W 20130327; CA 2869215 A 20130327; EP 13717194 A 20130327; IN 9180DEN2014 A 20141103; US 201314390024 A 20130327