Aqueous suspensions of colloidal particles, preparation and...

Details Aqueous suspensions of colloidal particles, preparation and... Aqueous suspensions of colloidal particles, preparation and...

C - Chemistry, Metallurgy

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C01B 33/14 (2006.01) C01B 33/40 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) D21H 17/68 (2006.01) D21H 21/10 (2006.01) D21H 17/74 (1995.01)

Patent

CA 2141550

Aqueous suspensions of colloidal particles which particles are both silica based anionic particles and swollen particles of clays of smectite type which are expandable in water and a process for the preparation thereof. The suspensions are useful as flocculating agents and particularly in combination with polymers in the production of paper.

Suspensions aqueuses de particules colloïdales qui sont des particules anioniques à base de silice et des particules hydratées d'argile de type smectite qui gonflent en présence d'eau et un procédé pour la préparation de ces suspensions. Ces suspensions sont utiles comme agents de floculation, en particulier lorsqu'elles sont combinées à des polymères dans la production du papier.

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