Process for treating cellulose and cellulose treated according to the process

Process for purifying a slurry comprising cellulose by salt/ion depletion and/or free sugar depletion. The process comprises the following steps of providing a slurry comprising cellulose and liquid, subjecting the slurry to a first application of an electric field inducing the liquid of the slurry...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Gaidelis Valentas, Sidaravicius Jonas, Kotilainen Ari, Backfolk Kaj, Heiskanen Isto
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 SEPARATION TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	Process for purifying a slurry comprising cellulose by salt/ion depletion and/or free sugar depletion. The process comprises the following steps of providing a slurry comprising cellulose and liquid, subjecting the slurry to a first application of an electric field inducing the liquid of the slurry to flow, separating the liquid from the cellulose thus obtaining a liquid depleted slurry, adding a washing liquid to the liquid depleted slurry, subjecting the liquid depleted slurry to a second application of an electric field inducing the washing liquid of the slurry to flow and separating the washing liquid from the cellulose, thus obtaining a purified cellulose.