BENTONITE FOR BINDING IMPURITIES DURING PAPER PRODUCTION

A method for binding impurities in paper production, comprising the following steps: a) provision of a bentonite, the proportion of the monovalent cations, based on the cation exchange capacity (CEC) of the bentonite, being at least 0.7 and the CEC being more than 85 meq/100 g, preferably more than...

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Bibliographische Detailangaben
Hauptverfasser:	SOHLING, ULRICH, BESTING, HUBERTUS, WENDRICH, GENOVEFA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	A method for binding impurities in paper production, comprising the following steps: a) provision of a bentonite, the proportion of the monovalent cations, based on the cation exchange capacity (CEC) of the bentonite, being at least 0.7 and the CEC being more than 85 meq/100 g, preferably more than 90 meq/100 g, in particular more than 95 meq/100 g; b) addition of the bentonite according to a) to a paper pulp or fiber suspension; c) binding of the impurities to the bentonite in the pulp or fiber suspension is described.