PROCESS FOR RECOVERING THE STARCH PRESENT IN RECYCLED PAPER OR CARDBOARD, USE OF SAID STARCH

The present invention relates to a process for recovering starch present in paper and/or cardboard, by: [a] preparation of an aqueous suspension A of fibres, [b] treatment of the aqueous suspension A and formation of two fractions: - fraction B containing water, fibres, fines and fillers; - fraction...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NEYRET, Christophe, LASCAR, Alain, FOUREST, Eric, HUBER, Patrick, DURY, Benoit, ANDRES, Serge
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention relates to a process for recovering starch present in paper and/or cardboard, by: [a] preparation of an aqueous suspension A of fibres, [b] treatment of the aqueous suspension A and formation of two fractions: - fraction B containing water, fibres, fines and fillers; - fraction C containing water and dissolved and/or colloidal starch, fines and fillers, [c] separation of fraction C into two fractions: - fraction D containing water and dissolved starch, - fraction E containing water and colloidal starch, fines and fillers, [d] use or treatment of fraction D, [e] use or exploitation of fraction E. La présente invention concerne un procédé de récupération d'amidon présent dans du papier et/ou du carton, par : [a] préparation d'une suspension aqueuse A de fibres, [b] traitement, de la suspension aqueuse A et formation de deux fractions : - fraction B contenant de l'eau, des fibres, des fines et des charges, - fraction C contenant de l'eau et de l'amidon dissous et/ou colloïdal, des fines et des charges, [c] séparation de la fraction C, en deux fractions : - fraction D contenant de l'eau et de l'amidon dissous, - fraction E contenant de l'eau et de l'amidon colloïdal, des fines et des charges, [d] utilisation ou traitement de la fraction D, [e] utilisation ou valorisation de la fraction E.