EP 4392608 A1 20240703 - METHOD FOR PREPARING A CELLULOSE PULP
Title (en)
METHOD FOR PREPARING A CELLULOSE PULP
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ZELLSTOFFS
Title (fr)
PROCÉDÉ DE PRÉPARATION D'UNE PÂTE DE CELLULOSE
Publication
Application
Priority
- FR 2110951 A 20211015
- FR 2022051918 W 20221012
Abstract (en)
[origin: WO2023062316A1] The invention relates to a method for preparing cellulose pulp from textile waste comprising cellulose fibres in a mass proportion of more than 50%. The method comprises shredding the textile waste to obtain a first mixture of shredded fibres and residues, separating at least part of the non-cellulosic components from the first mixture to obtain a second mixture having a larger mass proportion of cellulose fibres than the mass proportion of cellulose fibres in the first mixture, filtering the second mixture in order to recover a solid phase comprising the cellulose fibres, dissolving the cellulose fibres from the solid phase to obtain a cellulose pulp comprising undissolved particles, and filtering the cellulose pulp in order to obtain a cellulose pulp separated from the undissolved particles.
IPC 8 full level
D21C 5/00 (2006.01); D21H 11/14 (2006.01)
CPC (source: EP)
D21C 5/00 (2013.01); D21H 11/14 (2013.01)
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2023062316 A1 20230420; CN 118234906 A 20240621; EP 4392608 A1 20240703; FR 3128233 A1 20230421; FR 3128233 B1 20231013
DOCDB simple family (application)
FR 2022051918 W 20221012; CN 202280068684 A 20221012; EP 22802211 A 20221012; FR 2110951 A 20211015