Process for the production of platy precipitated calcium...

Details Process for the production of platy precipitated calcium... Process for the production of platy precipitated calcium...

C - Chemistry, Metallurgy

01

F

C01F 11/18 (2006.01) D21H 17/67 (2006.01) D21H 19/38 (2006.01)

Patent

CA 2528268

A process for the preparation of platy precipitated calcium carbonate comprising the steps of providing a suspension of calcium hydroxide, carbonating the suspension of calcium hydroxide, adding a polyacrylate to the suspension prior to the completion of carbonation to precipitate platy calcium carbonate. Also provided are a paper that is filled and a paper that is coated using the platy precipitated calcium carbonate according to the present invention.

Un processus de préparation de carbonate de calcium précipité feuilleté consiste à prendre une suspension d'hydroxyde de calcium, à effectuer la carbonation de cette suspension d'hydroxyde de calcium, à ajouter un polyacrylate à cette suspension avant l'achèvement de la carbonatation de façon à précipiter le carbonate de calcium feuilleté. Cette invention concerne aussi un papier qui est rempli et un papier qui est revêtu au moyen du carbonate de calcium précipité feuilleté de cette invention.

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