Controlled addition of co2 in the wet end of the papermaking...

Details Controlled addition of co2 in the wet end of the papermaking... Controlled addition of co2 in the wet end of the papermaking...

D - Textiles, Paper

21

H

D21H 23/08 (2006.01)

Patent

CA 2528464

A method for controlling the CO2 addition in a wet end process utilizing CO2 addition is disclosed. The method includes combining a papermaking composition and CO2 to create a CO2-enriched papermaking composition, measuring or estimating at least one electrical property of either the papermaking composition or of the CO2-enriched papermaking composition, and controlling the rate of addition of CO2 to maintain the at least one electrical property within a pre-selected range of values.

Procédé de régulation de l'addition de CO¿2? au niveau de la partie humide d'un processus comprenant l'addition de CO¿2?. Ce procédé consiste à associer une composition destinée à la fabrication du papier et du CO¿2? pour produire une composition de papier enrichie en CO¿2?, à mesurer ou à estimer au moins une propriété électrique de ladite composition de fabrication de papier ou de la composition enrichie en CO¿2?, et à réguler la vitesse d'addition du CO¿2? pour maintenir la ou les propriétés électriques en deçà d'une plage de valeurs présélectionnées.

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