Use of cationic polyelectrolytes and surfactants in the...

Details Use of cationic polyelectrolytes and surfactants in the... Use of cationic polyelectrolytes and surfactants in the...

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) B01D 21/00 (2006.01)

Patent

CA 2210385

A method for enhancing ink removal efficiency and fiber recovery in the dispersed air flotation of wastepaper deink filtrate is disclosed, which method includes adding to the filtrate a combination of an alkoxylated tallow fatty acid surfactant and a cationic polyelectrolyte having an average molecular weight less than about 2,000,000.

Divulgation d'une méthode pour améliorer l'efficacité du désencrage et la récupération de fibres dans la flottation par insufflation d'air de filtrat de désencrage de vieux papiers. Dans cette méthode, on ajoute au filtrat une combinaison de surfactant d'acide gras alcoxylé de suif et de polyélectrolyte cationique, ayant un poids moléculaire moyen inférieur à environ 2 000 000..

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